# Boeing-747.com  -  full text

> An independent reference on the Boeing 747, covering every variant from the
> 747-100 to the 747-8, special-mission aircraft, interiors, seating layouts,
> photographs and videos. Not affiliated with The Boeing Company.
>
> This file contains the site's article content in Markdown for language-model
> ingestion. The human-readable site is at https://www.boeing-747.com and the curated index is in
> llms.txt.

## 747 Timeline

*URL: https://www.boeing-747.com/747_timeline.php*

A chronology of the Boeing 747 from 1963 to the last delivery on 31 January 2023.

### Model chronology

First order through to last delivery for each production variant.

| Model | First order | Rollout | First flight | Certification | First delivery | In service | First airline | Last delivery | Last airline |
|---|---|---|---|---|---|---|---|---|---|
| 747-100/SR/B | 04/13/66 | 09/30/68 | 02/09/69 | 12/30/69 | 12/13/69 | 01/21/70 | Pan Am | 9/86 | Japan Air Lines |
| 747-200 | 12/19/68 | 09/10/70 | 10/11/70 | 12/23/70 | 01/15/71 | 06/71 | KLM | 12/90 | USAF |
| 747-200F | 03/03/69 | 11/23/71 | 11/30/71 | 03/07/72 | 03/10/72 | 04/19/72 | Lufthansa | 11/91 | Nippon Cargo |
| 747-200C | 03/27/72 | 02/28/73 | 03/23/73 | 04/24/73 | 04/30/73 | 05/73 | World Airways | 9/88 | Martinair |
| 747SP | 09/10/73 | 05/19/75 | 07/04/75 | 02/04/76 | 03/05/76 | 04/25/76 | Pan Am | 12/09/89 | Abu Dhabi Govt. (UAE) |
| 747-200M | 04/08/74 | 10/30/74 | 11/18/74 | 03/07/75 | 03/07/75 | 03/07/75 | Air Canada | 12/09/89 | Abu Dhabi Govt. (UAE) |
| 747-300M | 06/11/80 | 01/14/83 | 02/14/83 | 03/05/83 | 03/05/83 | 03/83 | Swissair | 9/90 | Sabena |
| 747-300/SR | 06/11/80 | 09/21/82 | 10/05/82 | 03/07/83 | 03/01/83 | (to UTA) | 03/28/83 | Swissair | 10/88 |
| 747-400 | 10/22/85 | 01/26/88 | 04/29/88 | 01/10/89 | 01/26/89 | 02/09/89 | Northwest | - | - |
| 747-400M | 04/09/86 | 03/23/89 | 06/30/89 | 01/10/89 | 09/01/89 | 09/89 | KLM | 04/10/02 | KLM |
| 747-400D | 12/18/88 | 02/18/91 | 03/18/91 | 10/10/91 | 10/10/91 | 10/91 | Japan Air Lines | 12/95 | All Nippon Airways |
| 747-400F | 09/13/89 | 03/08/93 | 05/04/93 | 10/22/93 | 11/17/93 | 11/17/93 | Cargolux | 5/7/09 | Nippon Cargo Airlines |
| 747-400ER | 12/19/00 | 06/17/02 | 07/31/02 | 10/29/02 | 10/31/02 | 11/07/02 | Qantas | 7/30/03 | Qantas |
| 747-400ERF | 04/17/01 | 09/05/02 | 09/02 | 10/16/02 | 10/17/02 | 10/02 | Air France | 11/10/09 | LoadAir Cargo |
| 747-8F | 11/14/05 | 11/12/09 | 2/8/10 | 08/19/11 | 10/12/11 | 10/16/11 | Cargolux | 01/31/23 | Atlas Air |
| 747-8 | 12/6/06 | 02/13/11 | 03/20/11 | 12/14/11 | 05/05/12 | 06/01/12 | Lufthansa | - | - |

### Chronology

**Jan. 31, 2023**
Boeing delivers the final 747 ever built, a 747-8 Freighter registered N863GT, to Atlas Air. Total production: 1,574 aircraft over 54 years.

**Dec. 6, 2022**
The last 747 rolls out of the Everett factory.

**July 2020**
British Airways and Qantas retire their 747 fleets, both bringing planned retirements forward.

**June 1, 2012**
Lufthansa places the 747-8 Intercontinental into scheduled service.

**May 5, 2012**
First 747-8 Intercontinental delivered, to Lufthansa.

**Oct. 12, 2011**
First 747-8 Freighter delivered, to Cargolux.

**March 20, 2011**
First flight of the 747-8 Intercontinental

**Feb. 8, 2010**
First flight of the 747-8 Freighter

**Aug. 8, 2008**
Boeing starts major assembly of the first 747-8 Freighter

**Feb. 28, 2008**
Boeing delivers 1,400th 747 to GECAS for lease to AirBridgeCargo Airlines

**Nov. 7, 2007**
Boeing completes firm configuration for 747-8 Intercontinental

**March 10, 2007**
Orders for Boeing 747 surpass 1,500

**Dec. 6, 2006**
Lufthansa becomes first airline to order 747-8 Intercontinental

**Oct. 31, 2006**
Boeing completes firm configuration for 747-8 Freighter

**November 14, 2005**
Boeing launches the 747-8 Family -- the 747-8 Intercontinental passenger airplane and the 747-8 Freighter -- with orders from Cargolux and Nippon Cargo Airlines.

**October 31, 2002**
Delivery of first 747-400ER passenger version to Qantas Airways.

**October 17, 2002**
Delivery of first 747-400ER freighter to Air France (financed by International Finance Lease Corporation).

**July 31, 2002**
First flight of the 747-400ER begins a three-month flight test program that will culminate with certification and delivery to launch customer Qantas Airways.

**June 17, 2002**
Thousands of Boeing employees gather in the world's largest building to celebrate rollout of the first 747-400ER.

**February 11, 2002**
Boeing workers load the 747's forward section floor grid into an assembly tool, marking the start of major assembly for the 747-400ER.

**December 18, 2001**
Boeing engineers complete 90 percent of the design work for both the passenger and freighter versions of the new Longer-Range 747-400 family of airplanes.

**April 30, 2001**
Boeing launches second member of its Longer-Range 747-400 Family -- the 747-400ER Freighter -- with an order from International Lease Finance Corporation (ILFC).

**December 14, 2000**
Factory rollout of China Airlines 747-400 Freighter, 2000's 15th 747-400 Freighter, a new single-year record.

**November 28, 2000**
Boeing launches newest member of the 747 Family, the Longer-Range 747-400, with an order from Australia's Qantas Airways.

**November 15, 1999**
U.S. Postal Service unveils 747 postage stamp, which Boeing places on its factory doors: world's largest stamp on world's largest building that produces world's largest commercial airplane.

**August 10, 1999**
Major assembly begins on first 747-400 Freighter to be used as platform for U.S. Air Force's Airborne Laser program.

**April 22, 1999**
United Airlines takes delivery of its 75th 747.

**February 17, 1999**
Boeing delivers 1,200th 747, a 747-400 to British Airways.

**February 15, 1999**
Boeing celebrates completion of digitizing the 747 fuselage and utilizing new fuselage tooling, a four-year effort that results in simplified airplane assembly and improved quality.

**November 19, 1998**
Boeing and Japan Airlines celebrate the delivery of the airline's 100th 747.

**October 30, 1998**
Boeing and British Airways celebrate the delivery of the airline's 50th 747-400.

**September 30, 1998**
Boeing celebrates 30th anniversary of the first 747-100 to roll out of the Everett factory. A new 747 slogan is revealed at the ceremony: "Boeing 747 -- The Leader, The Legend."

**April 23, 1997**
Boeing and Lufthansa German Airlines celebrate the 25th anniversary of the first 747-200 Freighter delivery.

**January 1996**
Boeing delivers 1,100th 747, a 747-400, to England's Virgin Atlantic Airways and Los Angeles-based International Lease Finance Corp.

**November 17, 1993**
747-400 Freighter enters commercial service with Luxembourg's Cargolux Airlines.

**October 12, 1993**
Boeing delivers line No. 1,000 to Singapore Airlines.

**September 10, 1993**
Boeing rolls out line No. 1,000, a 747-400.

**May 4, 1993**
First flight of the first 747-400 Freighter.

**March 8, 1993**
First 747-400 Freighter rolls out of the factory.

Dec. 1992 - Jan. 1993

747s participate in Operation Restore Hope, transporting 13,609 troops on a United Nations mission to Somalia.

**February 5, 1992**
Boeing uses first 747-100 to flight-test engines for the 777.

**October 22, 1991**
747-400 Domestic enters commercial service with Japan Airlines.

**March 18, 1991**
First flight of the first 747-400 Domestic.

**February 18, 1991**
First 747-400 Domestic rolls out of the factory.

Aug. 1990 - March 1991

747s participate in Operation Desert Storm, carrying 644,000 troops and 220,000 tons of equipment to and from the Middle East as part of a United Nations effort to restore peace in the region.

**August 1990**
Boeing delivers first of two presidential 747-200s to the U.S. Air Force.

**March 28, 1990**
First 747-100 enters semi-retirement at Seattle's Museum of Flight.

**September 12, 1989**
747-400 Combi enters commercial service with The Netherlands' KLM -- Royal Dutch Airlines.

**June 30, 1989**
First flight of the first 747-400 Combi.

**March 23, 1989**
First 747-400 Combi rolls out of the factory.

**February 9, 1989**
747-400 enters commercial service with U.S.-based Northwest Airlines.

**April 29, 1988**
First flight of the first 747-400.

**January 26, 1988**
Boeing rolls out first 747-400 on same day as first 737-400.

**June 5, 1986**
U.S. Air Force orders two specially equipped 747-200s to transport the president of the United States.

**October 1985**
Boeing announces the 12th version of its jumbo jet family, the advanced-technology 747-400.

**March 23, 1983**
747-300 enters commercial service with Swissair.

**October 5, 1982**
First flight of the first 747-300.

**September 21, 1982**
First 747-300 rolls out of the factory.

**November 19, 1980**
Boeing rolls out line No. 500 from the factory, a 747-200 Combi delivered Feb. 17, 1981, to Scandinavian Airlines System (SAS).

**February 18, 1977**
Specially equipped 747 carries U.S. space shuttle for the first time.

**April 25, 1976**
747SP enters commercial service with U.S.-based Pan American World Airways.

**October 1975**
747 worldwide fleet carries 100 millionth passenger.

**July 4, 1975**
First flight of the first 747SP; attains top speed of Mach 0.92.

**May 19, 1975**
First 747SP (special performance) rolls out of the factory.

**March 7, 1975**
747-200 Combi enters commercial service with Air Canada.

**November 11, 1974**
First flight of the first 747-200 Combi.

**October 30, 1974**
First 747-200 Combi rolls out of the factory.

**October 7, 1973**
First 747SR (short range) enters commercial service with Japan Airlines (Tokyo to Naha, Okinawa).

**May 1973**
747-200 Convertible enters commercial service with U.S.-based World Airways.

**March 23, 1973**
First flight of the first 747-200 Convertible.

**February 28, 1973**
First 747-200 Convertible rolls out of the factory.

**September 1972**
747 worldwide fleet accumulates one million flight hours.

**April 19, 1972**
747-200 Freighter enters commercial service with Lufthansa German Airlines.

**November 30, 1971**
First flight of the first 747-200 Freighter.

**November 23, 1971**
First 747-200 Freighter rolls out of the factory.

**June 1971**
747-200 enters commercial service with The Netherlands' KLM -- Royal Dutch Airlines.

**February 11, 1971**
Boeing delivers line No. 100 to U.S.-based Braniff Airlines.

**January 1971**
747 worldwide fleet accumulates 71 million miles in first year.

**October 11, 1970**
First flight of the first 747-200.

**September 10, 1970**
First 747-200 rolls out of the factory.

**July 16, 1970**
747 worldwide fleet carries one millionth passenger.

**January 21, 1970**
747-100 enters commercial service with U.S.-based Pan American World Airways on a New York-to-London flight.

**December 30, 1969**
The U.S. Federal Aviation Administration certifies the 747-100 for commercial service.

**June 1969**
First 747-100 participates in Paris Air Show.

**February 9, 1969**
First flight of the first 747-100.

**September 30, 1968**
First 747-100 rolls out of the factory.

**June 1968**
Boeing tests the new Pratt & Whitney JT9D engine, developed for the 747, on the wings of a Boeing B-52.

**November 21, 1967**
First 747 nose section arrives at the Everett plant from the Boeing plant in Wichita, Kan.

**January 3, 1967**
First production workers arrive at the Everett plant.

**September 1966**
Orders for the 747 reach $1.8 billion.

**June 1966**
Boeing purchases 780 acres, adjacent to Paine Field, Everett, Wash., to build the 747 production plant.

**April 13, 1966**
Pan American World Airways announces $525 million order for 25 Boeing 747s, effectively launching the 747 Program.

**March 1966**
Boeing board of directors decides to proceed with the 747 Program.

**Spring 1963**
Boeing forms engineering group to develop large airplane to meet passenger and cargo growth predicted for the 1970s.

## Explore the Boeing 747

*URL: https://www.boeing-747.com/747-explorer.html*

import ExplorerCards from '../../components/ExplorerCards.astro';

Get closer to the aircraft. Run a fictional airline, build a jumbo, design its cabin or follow a turnaround. Discover unbuilt concepts, try family activities, explore aviation myths and help build an original interview archive. Then explore the livery designer, cockpit, routes and spotting tools.

### Keep exploring

Follow the [live 747 map](/live-boeing-747-map.html), browse [seat maps](/seating_layouts_on_boeing_747/) or visit the [preserved aircraft directory](/preserved-boeing-747s.html). The [long-form features](/features/) explain the factory, pilots, freight operations and the aircraft's place in aviation history.

The tools work without an account or paid API. Logbook entries stay in your browser; export a backup before clearing browser data or moving to another device. Livery designs and memory contributions are prepared locally. Memories are published only after editorial review. Passenger routes and spotting guides include dated sources and known access or schedule limits.

## Boeing 747 Freighter Specifications

*URL: https://www.boeing-747.com/747-freighter-specifications.html*

Factory freighter weights and cargo volumes compared, with engine, equipment and weight-option assumptions stated.

The figures below come from Boeing's airport-planning manuals. They describe particular configurations: comparing the variant name alone hides engine, equipment and weight-option differences.

### Weights and cargo space

Scroll the table horizontally on smaller screens. Metric weights and volumes are converted from pounds and cubic feet; rounding may differ slightly from the manual.


| Specification | [747-400F](/boeing_747_family/747-400f.php) | [747-400ERF](/boeing_747_family/747-400erf.php) | [747-8F](/boeing_747_family/747-8f.php) |
|---|---|---|---|
| Maximum takeoff weight | 875,000 lb (396,893 kg) | 910,000 lb (412,769 kg) | 987,000 lb (447,696 kg) |
| Maximum landing weight | 666,000 lb (302,093 kg) | 666,000 lb (302,093 kg) | 763,000 lb (346,091 kg) |
| Maximum zero-fuel weight | 635,000 lb (288,031 kg) | 611,000 lb (277,145 kg) | 727,000 lb (329,762 kg) |
| Representative operating empty weight | 363,954 lb (165,087 kg) | 362,400 lb (164,382 kg) | 434,600 lb (197,131 kg) |
| Representative structural payload | 271,046 lb (122,944 kg) | 248,600 lb (112,763 kg) | 292,400 lb (132,630 kg) |
| Usable fuel | 57,065 US gal (216,014 L) | 53,765 US gal (203,522 L) | 59,734 US gal (226,117 L) |
| Main-deck container volume | 18,720 cu ft (530.1 m³) | 18,720 cu ft (530.1 m³) | 24,462 cu ft (692.7 m³) |
| Lower-deck container volume | 5,536 cu ft (156.8 m³) | 5,600 cu ft (158.6 m³) | 5,850 cu ft (165.7 m³) |
| Lower-deck bulk volume | 520 cu ft (14.7 m³) | 520 cu ft (14.7 m³) | 520 cu ft (14.7 m³) |


### Configuration and sources

### 747-400F

GE CF6-80C2B1 planning example at 875,000 lb MTOW, with optional 666,000 lb MLW, 635,000 lb MZFW and tail fuel. Main-deck volume uses 29 ten-foot containers.

Source: [Boeing D6-58326-1, Revision F (December 2024), printed page 2-8](https://www.boeing.com/content/dam/boeing/v2/airports/acaps/747-400_Rev_F.pdf#page=25).

### 747-400ERF

GE CF6-80C2B5-F planning example. Main-deck volume uses 29 ten-foot containers; lower-deck container volume uses LD-2s. OEW varies with equipment and operator.

Source: [Boeing D6-58326-1, Revision F (December 2024), printed page 2-12](https://www.boeing.com/content/dam/boeing/v2/airports/acaps/747-400_Rev_F.pdf#page=29).

### 747-8F

987,000 lb MTOW planning option. Boeing's estimated OEW and structural payload depend on equipment and operator configuration. The freighter has no tail fuel tank.

Source: [Boeing D6-58326-3, Revision E (January 2026), printed page 2-2](https://www.boeing.com/content/dam/boeing/v2/airports/acaps/747-8_Rev_E.pdf#page=13).

### Why the ERF can show less payload than the F

The selected -400F example includes the optional 635,000 lb maximum zero-fuel weight. The -400ERF table uses 611,000 lb. A higher takeoff-weight limit does not automatically mean more structural payload: the selected zero-fuel limit and empty weight determine it. These are comparisons of documented configurations, not universal rankings of all aircraft.

The -8F has more main-deck container volume, but usable load also depends on cargo density, floor limits, restraint, loading sequence and centre of gravity. Volume and payload cannot be treated as interchangeable measures.

### Payload is not range

Structural payload is **MZFW minus OEW**. Fuel must fit within takeoff weight after the aircraft and payload are accounted for. Actual route capability also depends on weather, engine installation, cruise strategy and reserves. Consult the manual's section 3 payload-range charts for the chosen configuration rather than pairing unrelated headline figures.

### Factory and converted freighters

Factory freighters have a nose cargo door and a short upper deck. Passenger conversions retain their original fuselage arrangement and use an added main-deck side cargo door. Their empty weight, cargo volume and approved loading limits depend on the conversion programme; factory figures above should not be applied to them.

- [Factory versus converted 747 freighters](/features/factory-vs-converted-747-freighters.html)
- [747-400BCF](/boeing_747_family/747-400bcf.php)
- [Cargo loading systems](/boeing-747-internals/cargo-loading-system.html)
- [Weight and balance](/boeing-747-internals/weight-and-balance-and-loading.html)
- [All specifications](/specifications.html)

## About Alykhan Virani

*URL: https://www.boeing-747.com/about-alykhan-virani.html*

Alykhan Virani is the Boeing 747 enthusiast, researcher and editor behind Boeing-747.com.

I am **Alykhan Virani**, a Boeing 747 enthusiast and the researcher and editor behind Boeing-747.com.

The purpose of this site is to preserve and explain the history of the 747 in plain English: how the variants differ, how the aircraft's systems work, who operated it, why it changed long-distance travel, and where surviving aircraft can still be seen.

### How I research the site

I start with first-party and institutional material wherever it is available. Typical sources include Boeing technical documents and historical releases, airline fleet disclosures, aviation-authority records, accident-investigation reports, NASA, and the museums responsible for preserved aircraft.

When a reliable primary source cannot be found, I either make the uncertainty explicit or leave the claim out. Current fleet and route information is dated because it can change quickly.

Photographs on the site are used with permission. Many originated on Wikimedia Commons; credits and licence links are retained or added when the original file information can be verified.

### Independence

Boeing-747.com is an independent enthusiast publication. It is not affiliated with, endorsed by, or published by The Boeing Company. "Boeing" and aircraft model names are used descriptively.

### Corrections and contributions

Aviation history improves when readers challenge details and provide better evidence. If you find an error, a dead source, or more precise primary documentation, please use the [contact page](/contact_me.php). The [editorial policy](/editorial-policy.html) explains how corrections, sources and update dates are handled.

## Boeing 747 accidents and incidents

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/*

A chronological guide to 22 selected Boeing 747 accidents and incidents, with a detailed account and image for every entry.

import AccidentIndex from '../../components/AccidentIndex.astro';

Explore the aircraft, circumstances and investigation findings behind these selected cases, from Nairobi in 1974 to Bagram in 2013. The list includes accidents, deliberate attacks and non-fatal incidents.

**Reading the figures:** fatalities include people on the ground where applicable. The Korean Air Lines 015 account explains conflicting historical counts. The Pan Am 73 figure follows the U.S. Justice Department chronology; the Amsterdam total follows the City Archives' final count.

### Understanding the safety lessons

These events involved different causes: runway operations, navigation, repairs, structural failures, cargo restraint, fire and security. The detail pages distinguish investigation findings from historical context and identify gaps in the available record.

For the equipment behind those findings, explore [747 systems](/boeing-747-internals/) and [the 747 family](/boeing_747_family/). For a broader event database, visit the [Aviation Safety Network](https://asn.flightsafety.org/).

## Air India 182, 23 June 1985

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/air-india-182.html*

A bomb in checked baggage destroyed Air India 182 off the Irish coast on 23 June 1985. All 329 aboard died - the deadliest aviation terrorism before 9/11.

On **23 June 1985**, Air India Flight 182 was destroyed by a bomb off the coast of Ireland. **All 329 people aboard died** - 307 passengers and 22 crew.

The aircraft was **VT-EFO**, a [Boeing 747-237B](/boeing_747_family/747-200.php) named *Emperor Kanishka*, flying Toronto to Mumbai via Montreal and London.

It remained the **deadliest act of aviation terrorism anywhere in the world until 11 September 2001**, and it is the worst terrorist attack in Canadian history.

### What happened

A bomb, concealed in a **Sanyo stereo tuner inside a checked suitcase**, detonated in the forward cargo hold at altitude. The aircraft broke up and fell into the Atlantic south-west of Ireland.

The attack was carried out by members of the Khalistani separatist group **Babbar Khalsa**, in retaliation for the Indian Army's Operation Blue Star at the Golden Temple in 1984 and the anti-Sikh violence that followed.

### The failures behind it

This was not a case of an unforeseeable threat. The investigation found a chain of missed opportunities:

- Indian intelligence had **warned of bomb threats** against Air India.
- Canadian security services had the suspects **under surveillance**.
- An **explosives detector at Toronto airport was not working**.
- The suitcase travelled as **unaccompanied baggage** - checked onto an aircraft its owner did not board.

That last point is the one with the longest reach. The same day, a second bomb from the same plot exploded in baggage at Narita, killing two handlers.

### What changed

**Baggage reconciliation** - the rule that a checked bag flies only if its passenger is aboard - became a foundation of international aviation security, reinforced three years later by [Pan Am 103](/accidents_with_boeing_747s/pan-am-103.html), where the same principle had again failed.

Screening of hold baggage was overhauled, and the case became a long-running study in the cost of intelligence agencies not sharing what they know.

The Canadian inquiry that eventually reported on it was scathing about what it called a cascading series of errors across multiple agencies.

### Remembering it

For many years the attack was treated in Canada as a foreign tragedy rather than a Canadian one, despite the great majority of those killed being Canadian citizens. That framing has since been formally acknowledged as wrong.

### Related

- [All 747 accidents](/accidents_with_boeing_747s/)
- [Pan Am 103](/accidents_with_boeing_747s/pan-am-103.html)
- [The 747-200](/boeing_747_family/747-200.php)

## Air India 855, 1 January 1978

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/air-india-855.html*

A malfunctioning attitude indicator led to spatial disorientation and loss of control off Bombay. All 213 people aboard were killed.

On **1 January 1978**, Air India Flight 855 crashed into the Arabian Sea about three kilometres from Santacruz Airport, Bombay, **101 seconds after takeoff**. All **213 people aboard died** - 190 passengers and 23 crew.

The aircraft was VT-EBD, a **Boeing 747-237B** named *Emperor Ashoka*.

This accident and a separate 1977 El Al decompression were run together as a single garbled entry on this site for years, with their details transposed. Both are set out correctly here and on the [index](/accidents_with_boeing_747s/).

### What happened

The captain's **attitude direction indicator failed**, showing a bank that the aircraft was not in.

The departure was at night over dark water, with no horizon and no lights to give an external reference. With the instrument disagreeing with reality and nothing visible outside to resolve which was right, the captain flew the instrument - making control inputs that progressively worsened the aircraft's actual attitude.

The 747 rolled to a **108-degree bank** and struck the sea nose-down.

### Why it is instructive

Spatial disorientation is not a failure of skill. The human balance system cannot reliably sense a slow roll, so in the absence of an outside reference a pilot genuinely cannot feel what the aircraft is doing - the instruments are the only truth available. When one of them lies, and there is nothing outside to check it against, the trap closes quickly.

The accident reinforced training in **cross-checking instruments** - comparing the captain's, first officer's and standby indicators against each other rather than trusting one - and in recognising and recovering from unusual attitudes.

The "black hole" departure over unlit water at night remains a recognised high-risk phase of flight for exactly this reason.

### Related

- [All 747 accidents](/accidents_with_boeing_747s/)
- [The 747-200](/boeing_747_family/747-200.php)

## Asiana 991, 28 July 2011

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/asiana-991.html*

A cargo fire destroyed a 747-400F over the sea in 18 minutes, killing both crew and contributing to tighter rules on lithium batteries in air cargo.

On **28 July 2011**, Asiana Airlines Flight 991 - a **Boeing 747-48EF** freighter, registration **HL7604** - was destroyed by an in-flight fire and came down in the sea. **Both crew members died.**

### The load

The aircraft was carrying **58 tonnes** of cargo, mostly semiconductors and displays. Among it were about **400 kg of lithium batteries, paint and photoresist fluid**.

Investigators established that a fire began **in or near one of the ULD pallets containing dangerous goods** in the rear fuselage. They could not determine exactly what started it.

### Eighteen minutes

That is the figure that matters. From the first indication to the loss of the aircraft was around **eighteen minutes** - not enough time to reach a diversion airfield.

A main-deck fire on a freighter is a fundamentally different problem from a fire in a passenger aircraft's belly hold. Class C cargo holds beneath a passenger cabin are sealed and fitted with suppression. A freighter's **main deck** is an enormous open volume full of combustible packaging, and suppression at that scale is extremely difficult.

### Lithium batteries

This accident, together with the loss of **UPS Airlines Flight 6** in 2010, pushed lithium batteries up the agenda quickly. In **2012 ICAO began work on new standards** for carrying them by air, and the rules have tightened repeatedly since: restrictions on quantity and state of charge, packaging and segregation requirements, and outright prohibitions on some categories aboard passenger aircraft.

The underlying problem is that a lithium cell in thermal runaway supplies **its own oxidiser**. Conventional suppression systems, which work by displacing oxygen, do not reliably stop it.

### Why freighters carry the risk

Freighters fly the same routes as airliners, but their loads are dense, concentrated and often hazardous - and, as [National Airlines 102](/accidents_with_boeing_747s/national-airlines-102.html) showed in a different way, what is in the hold and how it is secured can determine whether the aircraft survives.

That is the recurring theme across the 747 freighter accidents: the aeroplane was fine. The cargo was the problem.

### Related

- [All 747 accidents](/accidents_with_boeing_747s/)
- [How 747 freight works](/features/how-747-freight-works.html)
- [The 747-400F](/boeing_747_family/747-400f.php)

## British Airways 9, 24 June 1982

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/british-airways-9.html*

A 747-236B lost all four engines in volcanic ash at 37,000 ft, glided 91 nmi, restarted three engines and landed at Jakarta. Nobody was hurt.

On **24 June 1982**, British Airways Flight 9 flew into a cloud of volcanic ash over Java and **lost all four engines**. Everybody aboard survived.

The aircraft was **G-BDXH**, a [Boeing 747-236B](/boeing_747_family/747-200.php) named *City of Edinburgh*, flying London to Auckland via Bombay, Kuala Lumpur, Perth and Melbourne. There were **263 people aboard** - 248 passengers and 15 crew.

### Why nobody saw it coming

The ash came from an eruption of **Mount Galunggung**. The crucial point is that **dry volcanic ash does not show on weather radar**, which is designed to detect water droplets. The crew had no indication they were flying into anything at all.

What they saw instead was St Elmo's fire on the windscreen and a glow from the engines. What the ash was doing was sandblasting the windscreen opaque, and melting inside the hot section of each engine, where it fused into a glassy coating and choked the airflow.

**All four Rolls-Royce RB211s failed within about a minute**, at 37,000 ft.

### Twenty-three minutes

A 747 without thrust is a glider with roughly a **15:1 glide ratio**. The crew calculated they could stay airborne about **23 minutes** and cover **91 nautical miles** - which was not enough to reach anywhere with a runway if they could not restart, and meant a ditching in the Indian Ocean.

Captain **Eric Moody** then made the announcement that made the flight famous:

Ladies and gentlemen, this is your captain speaking. We have a small problem. All four engines have stopped. We are doing our damnedest to get them going again. I trust you are not in too much distress.

### The restart

The engines came back because of physics rather than procedure. As the aircraft descended out of the ash and into cooler, denser air, **the fused ash cooled, solidified and cracked off** the engine internals.

At about **13,500 ft**, after repeated attempts, the engines relit. Number two had to be shut down again for heavy vibration, so the aircraft continued on three.

They landed at **Halim Perdanakusuma airport, Jakarta** - with the windscreen so badly abraded by ash that the crew had to look through a small clear strip at the side to land.

**No injuries.**

### What changed

The accident, and a similar Singapore Airlines encounter weeks later in the same area, established volcanic ash as a serious aviation hazard rather than a curiosity.

The result was the international network of **Volcanic Ash Advisory Centres**, which track eruption plumes and issue warnings to aircraft, plus procedures for crews who find themselves in ash: reduce thrust, leave the cloud by the shortest route, and expect the engines to fail.

Those procedures are why the 2010 Eyjafjallajökull eruption closed European airspace rather than being flown through. That caution traces directly to this flight.

### Related

- [All 747 accidents](/accidents_with_boeing_747s/)
- [Engines through the generations](/boeing-747-internals/engines.html)
- [The 747-200](/boeing_747_family/747-200.php)

## China Airlines 006, 19 February 1985

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/china-airlines-006.html*

A 747SP lost an engine at 41,000 ft, rolled inverted-ward and fell 31,500 ft in under 2.5 minutes. It was recovered and landed with 24 injured.

On **19 February 1985**, China Airlines Flight 006 - a [Boeing 747SP](/boeing_747_family/747-100sp.php), registration **N4522V** - lost control at 41,000 feet over the Pacific and fell **31,500 feet in under two and a half minutes**.

It was recovered, and it landed. That it did so at all is the remarkable part.

### How it started

The **number 4 engine failed** in the cruise. On a four-engined aircraft that is an inconvenience, not an emergency - but it produces **asymmetric thrust**, pulling the aircraft towards the dead engine, which the crew must counter with rudder.

The flight engineer attempted a restart but **did not close the bleed valve** as the checklist required. Meanwhile the captain became absorbed in the engine problem and in the decaying airspeed, and left the **autopilot engaged**.

That was the trap. The autopilot held the wings level using aileron alone, up to its authority limit - silently absorbing the yaw the captain should have been countering with rudder. It masked the developing problem until it ran out of authority, at which point the aircraft rolled sharply right.

### The upset

The 747SP rolled past **60 degrees**, entered a steep descent and fell into cloud, where the crew lost outside reference entirely. Passengers experienced up to **5g**.

The captain regained control at about **9,500 feet**.

### What the airframe took

The damage found afterwards is the reason engineers still talk about this flight:

- The **wings were bent permanently upward by about two inches**.
- **Landing gear doors were torn away.**
- **Large outer sections of the horizontal stabiliser were ripped off.**

The aircraft had been loaded far beyond anything it would meet in service, and it held together well enough to fly on and land at **San Francisco**. Of the 274 aboard, **24 were injured, two seriously** - a fractured foot and a back strain.

This is what the [structural margins demonstrated in testing](/videos/boeing-747-8-extreme-testin.html) - wings pulled to 150 percent of limit load - actually buy.

### The NTSB finding

The Board concluded the captain was **distracted first by evaluating the engine malfunction and then by the decaying airspeed**, and that he **over-relied on the autopilot**, which concealed the approaching loss of control. He also failed to apply the rudder needed to counter the asymmetry.

### Why it still gets taught

Like [Korean Air Lines 007](/accidents_with_boeing_747s/korean-air-007.html), this is an **automation** accident rather than a mechanical one. In both cases the autopilot did exactly what it was designed to do, and in doing so hid a developing problem from the people responsible for it.

The lesson - that automation can mask a deteriorating situation until it abruptly hands it back - shaped how modern flight decks annunciate what the automation is doing and when it is running out of authority.

### Related

- [All 747 accidents](/accidents_with_boeing_747s/)
- [The 747SP](/boeing_747_family/747-100sp.php)
- [Korean Air Lines 007](/accidents_with_boeing_747s/korean-air-007.html)

## China Airlines 611, 25 May 2002

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/china-airlines-611.html*

All 225 aboard died when a 747-200 broke up in the climb. A 1980 tailstrike repair had left damage uncovered, and it cracked over 22 years of cycles.

On **25 May 2002**, China Airlines Flight 611 broke apart in the climb out of Taipei. **All 225 people aboard died** - 206 passengers and 19 crew.

The aircraft was **B-18255**, a [Boeing 747-209B](/boeing_747_family/747-200.php).

### A repair from 1980

On **7 February 1980**, this aircraft scraped its tail on landing at Hong Kong's Kai Tak - a tailstrike, damaging the lower rear fuselage skin.

Boeing's structural repair manual gave two acceptable options: replace the whole damaged section, or fit a **doubler** - a reinforcing plate - large enough to cover all the damage and be fastened into sound metal beyond it.

China Airlines technicians fitted a doubler that was **too small**. Scratches from the tailstrike extended beyond the rows of fasteners, outside the area the plate reinforced.

### Twenty-two years

Those exposed scratches were stress raisers in a structure that is loaded and unloaded once per flight. As the [pressurisation page](/boeing-747-internals/pressurisation.html) sets out, a fuselage is a pressure vessel, and **cycles rather than hours** drive fatigue.

Cracks grew from the scratches over 22 years and thousands of pressurisation cycles until, in the climb, the fuselage ruptured and the aircraft broke up.

### The parallel with JAL 123

This is the second time a badly executed repair destroyed a 747 many years later, and the resemblance to [Japan Air Lines 123](/accidents_with_boeing_747s/jal-123.html) is close enough to be uncomfortable:

| | JAL 123 (1985) | China Airlines 611 (2002) |
|---|---|---|
| Original damage | Tailstrike, 1978 | Tailstrike, 1980 |
| Repair error | Two splice plates instead of one continuous | Doubler too small to cover the damage |
| Time to failure | 7 years, 12,318 cycles | 22 years |
| Deaths | 520 | 225 |

In both cases the aircraft was airworthy by every inspection it passed. The defect was inside a repair that everyone assumed had been done correctly, and no routine check was looking for it.

That is the lesson both accidents force: **a repair is not a one-off event but a permanent change to the structure**, and the record of it has to be as durable as the aircraft. Inspection regimes around repaired structure were tightened significantly as a result.

### Related

- [All 747 accidents](/accidents_with_boeing_747s/)
- [Japan Air Lines 123](/accidents_with_boeing_747s/jal-123.html)
- [Pressurisation - why cycles matter](/boeing-747-internals/pressurisation.html)

## El Al 1862, Amsterdam, 4 October 1992

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/el-al-1862.html*

El Al Flight 1862 lost two engines and crashed into Amsterdam apartments. The final toll was 43: four aboard and 39 on the ground.

On **4 October 1992**, El Al Flight 1862, a **Boeing 747-258F** freighter, lost both right-wing engines shortly after taking off from Amsterdam Schiphol and crashed into apartment buildings in the **Bijlmermeer**.

**The final death toll was 43: three crew and one passenger aboard, and 39 people on the ground.** The Amsterdam City Archives records this final count; some earlier sources give 47.

### What happened

**Fatigue cracks in the fuse pins** attaching the number 3 engine pylon to the wing gave way. The pylon and engine separated - and did so in a way that tore off the number 4 pylon and engine with it.

Fuse pins are meant to work like a mechanical fuse: in a severe event they are designed to fail so the engine departs cleanly, rather than twisting the wing structure and rupturing the fuel tanks. Here they failed from fatigue rather than from an overload, and the departing engine took its outboard neighbour with it.

The damage to the leading edge and the loss of hydraulic systems left the aircraft very difficult to control. Approaching to land, at low speed and with the right wing badly damaged, control was lost.

### What changed

**Fuse pin inspection.** The accident prompted urgent inspections and redesign of engine pylon attachment fittings across the 747 fleet, and much closer attention to fatigue in components whose purpose is to fail in a controlled way.

**Freighter loading and documentation.** The cargo manifest became a long-running public controversy in the Netherlands, and the handling of information about the load contributed to changes in how dangerous goods on freighters are documented.

It also remains one of the clearest illustrations of a risk unique to freighters: [they fly the same routes as airliners but over cities](/boeing_747_family/747-400f.php), and their loads are concentrated, heavy and - as [National Airlines 102](/accidents_with_boeing_747s/national-airlines-102.html) later showed - dangerous if they are not held down.

### Related

- [All 747 accidents](/accidents_with_boeing_747s/)
- [The 747-200](/boeing_747_family/747-200.php)

## El Al 747 decompression, 1977

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/el-al-1977-decompression.html*

An El Al 747 lost cabin pressure over Belgrade in November 1977. Read the documented facts, source limitations and historical context.

On **3 November 1977**, an El Al Boeing 747 experienced a decompression over **Belgrade, then in Yugoslavia**. **One passenger died following the event**, according to the AirSafe accident record.

### What is documented

The accessible record is much shorter than the investigation reports available for many other events in this section. It identifies the date, operator, aircraft family, location and one passenger death.

A contemporary newspaper report also describes a loss of cabin pressure. These sources do not establish a verified flight number, aircraft registration or detailed technical cause, so those details are not assigned here.

### Understanding decompression

Decompression means a loss of the cabin's maintained air pressure. For background on the equipment involved, see the site's [747 systems section](/boeing-747-internals/). A passenger death following a pressure-loss event does not by itself identify the medical cause of death or a structural failure mechanism.

The photograph shows another El Al 747 for historical context; it is not identified as the aircraft involved.

### Related

- [El Al Flight 1862](/accidents_with_boeing_747s/el-al-1862.html)
- [All accidents and incidents](/accidents_with_boeing_747s/)

## Japan Air Lines 123, 12 August 1985

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/jal-123.html*

An improperly repaired aft pressure bulkhead failed in flight, taking the tail and all four hydraulic systems. 520 people died and four survived.

On **12 August 1985**, Japan Air Lines Flight 123 crashed into Mount Takamagahara after suffering a catastrophic structural failure. **520 people died and four survived** - the deadliest accident involving a single aircraft in history.

### The aircraft

JA8119 was a **Boeing 747SR-46** - a [short-range, high-density variant](/boeing_747_family/747-100sr.php) built specifically for Japanese domestic routes, with a structure reinforced for far more takeoffs and landings than a long-haul 747 would ever see.

That reinforcement is central to what happened, because the SR's whole design premise was surviving an extraordinary number of pressurisation cycles.

### The repair

In 1978 the aircraft suffered a **tailstrike**, damaging the aft pressure bulkhead. Boeing technicians repaired it - incorrectly.

The correct repair called for a single continuous splice plate across the joint. What was fitted was **two separate plates**, which meant one row of rivets carried load it was never intended to carry. The repair had roughly **70 percent of the intended fatigue resistance**, and a calculated life of about 11,000 pressurisation cycles.

The aircraft flew **12,318 flights** after the repair.

### What happened

The bulkhead failed in flight. The escaping cabin air blew off a large part of the vertical stabiliser and - critically - severed **all four hydraulic systems**.

The 747 has four independent hydraulic systems, each driven by a different engine, precisely so that no single failure can take them all. But all four ran through the tail. A single event destroyed every one of them, and with them every flight control.

The crew kept the aircraft airborne for **32 minutes** using engine thrust alone to control pitch and direction, before it struck the mountain.

### What changed

**Repair oversight.** The accident forced a fundamental review of how repairs are documented, inspected and signed off - and of the assumption that a repair, once made, need not be revisited.

**Structural inspection.** Inspection regimes for pressure bulkheads and other critical structure were tightened, with more attention to areas that had been repaired.

**Common-mode failure.** The loss of four "independent" systems in one event became a standard case study in how redundancy can be defeated by routing. It is discussed alongside [National Airlines 102](/accidents_with_boeing_747s/national-airlines-102.html), where hydraulics and the stabiliser jackscrew were destroyed together by shifting cargo.

### Related

- [All 747 accidents](/accidents_with_boeing_747s/)
- [The 747-100SR](/boeing_747_family/747-100sr.php) - the high-cycle Japanese domestic variant
- [747 systems](/boeing-747-internals/) - how the redundancy is arranged

## Korean Air Lines 007, 1 September 1983

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/korean-air-007.html*

Shot down over Soviet airspace on 1 September 1983 after an autopilot mode error. All 269 died, and the US opened GPS to civilian use as a result.

On **1 September 1983**, Korean Air Lines Flight 007 was shot down by Soviet Su-15 interceptors after straying into Soviet airspace. **All 269 people aboard died** - 246 passengers and 23 crew.

The aircraft was **HL7442**, a [Boeing 747-230B](/boeing_747_family/747-200.php), flying New York to Seoul via Anchorage.

### What went wrong

The cause was mundane and, once understood, alarmingly easy.

The autopilot was left in **HEADING mode** rather than being switched to **INS mode**, which would have made it follow the programmed route from the inertial navigation system. In heading mode the aircraft simply holds a compass heading - so instead of tracking the route, it flew a constant heading and drifted steadily further from it.

Over several hours that drift took the aircraft **more than 160 nautical miles off course**, across the Kamchatka Peninsula and Sakhalin Island. Soviet air defence tracked it, could not identify it as a civil aircraft, and treated it as a US reconnaissance flight - plausible to them because a US RC-135 had been operating in the same region.

The crew had no idea they were off course. Nothing in the cockpit told them.

### Why it mattered beyond aviation

This was the Cold War at its coldest, and the shootdown became a major international incident. But its longest-lasting consequence has nothing to do with politics.

**The reason your phone knows where it is traces back to this accident.**

At the time the **Global Positioning System** was a United States military programme, still under development and not intended for public use. In response to KAL 007, President Reagan issued a directive that GPS should be made **freely available for civilian use** once it was sufficiently developed, as a common good - precisely so that a civil aircraft could never again be uncertain of its own position.

Every satnav, every phone map, every modern airliner's navigation display descends from that decision.

### What it says about automation

The accident is still taught as a case study in **mode confusion** - the crew believing the automation was doing one thing while it did another.

The aircraft behaved perfectly. The autopilot did exactly what it had been set to do. Nobody noticed that what it had been set to do was not what was wanted, and nothing in the design made the discrepancy obvious.

That problem did not go away with better equipment; it is the reason modern flight decks put so much effort into displaying **what mode the automation is actually in**. The [747-400's glass cockpit](/boeing-747-internals/flight-deck.html), which arrived five years later, made mode annunciation far more prominent than the analogue flight decks it replaced.

### Related

- [All 747 accidents](/accidents_with_boeing_747s/)
- [The 747-200](/boeing_747_family/747-200.php)
- [The flight deck, from three crew to two](/boeing-747-internals/flight-deck.html)

## Korean Air Lines Flight 015

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/korean-air-015.html*

Korean Air Lines Flight 015 landed short at Seoul in 1980. Explore the landing and fire, aircraft details and conflicting historical fatality counts.

On **19 November 1980**, Korean Air Lines Flight 015 crashed during landing at **Seoul-Gimpo Airport**. The aircraft, **Boeing 747-2B5B HL7445**, had flown from Los Angeles via Anchorage with **226 people aboard**.

### What happened

In restricted visibility, the aircraft touched down about **90 metres short of runway 14** and struck an embankment. The impact damaged the main landing gear. The aircraft slid along the runway and was subsequently destroyed by fire.

The Bureau of Aircraft Accidents Archives attributes the accident to an approach continued below the glide path without visual contact with the ground.

### Why the death toll differs between sources

The archive records **14 fatalities**, comprising eight passengers and six crew. A contemporary United Press International dispatch dated 20 November reports **15 deaths**, citing government officials after further bodies were found.

This page preserves that discrepancy rather than presenting one figure as undisputed. The overview therefore shows **14 - 15 reported**. Occupant and injury breakdowns also vary in historical summaries.

### Safety context

The accident is an example of the consequences of landing short in poor visibility, followed by a survivability challenge from fire. The diagram is an explanatory illustration, not a surveyed reconstruction of the accident site.

### Related

- [Korean Air Flight 801](/accidents_with_boeing_747s/korean-air-801.html)
- [All accidents and incidents](/accidents_with_boeing_747s/)

## Korean Air 801, Guam, 6 August 1997

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/korean-air-801.html*

228 of 254 aboard died when a 747-300 struck Nimitz Hill on approach to Guam. The glideslope was out of service and the terrain warning had been modified.

On **6 August 1997**, Korean Air Flight 801 struck high ground on Nimitz Hill while approaching Guam. **228 of the 254 people aboard died; 26 survived with serious injuries.**

The aircraft was **HL7468**, a [Boeing 747-3B5](/boeing_747_family/747-300.php).

### What happened

The **glideslope** for runway 6L - the part of an ILS that gives vertical guidance - was **out of service**. That turned an ordinary precision approach into a *non-precision* approach, which is flown by stepping down through published altitudes rather than following a beam.

The NTSB found that the captain **failed to adequately brief and execute** that non-precision approach, and that crew communication broke down as the aircraft descended. Captain fatigue and shortcomings in Korean Air's training were contributing factors. The captain appears to have believed the glideslope was working and followed a spurious signal.

Two things that might have caught the error did not:

- The crew's own cross-checking of altitude against distance, which is the whole discipline a non-precision approach demands.
- The **Minimum Safe Altitude Warning** system on the ground, which had been **deliberately modified to reduce nuisance alarms** and no longer covered the area where the aircraft descended into terrain.

### Why it is instructive

This is a textbook **controlled flight into terrain** accident: nothing was wrong with the aeroplane. It was flying normally, under control, right up to the impact.

The pattern behind it - a precision approach downgraded to a non-precision one, at night, into unfamiliar terrain, with a tired crew and a steep authority gradient on the flight deck - is precisely what [crew resource management](/accidents_with_boeing_747s/tenerife.html) was invented to break, and it showed that CRM had not yet taken hold everywhere.

Terrain awareness technology moved on sharply afterwards. **Enhanced Ground Proximity Warning Systems**, which compare position against a terrain database rather than only looking down, became standard and have made this category of accident far rarer.

### What changed on the ground

The accident also exposed how badly airlines could handle the aftermath. The **Foreign Air Carrier Family Support Act of 1997** followed directly, requiring international carriers serving the United States to file family-assistance plans meeting the same standards as domestic airlines.

Korean Air suspended its Guam service for more than four years.

### Related

- [All 747 accidents](/accidents_with_boeing_747s/)
- [The 747-300](/boeing_747_family/747-300.php)
- [Tenerife - where CRM came from](/accidents_with_boeing_747s/tenerife.html)

## Korean Air 8509, Stansted, 22 December 1999

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/korean-air-8509.html*

A 747-2B5F rolled into the ground after takeoff from Stansted when the captain's attitude indicator showed wings level. All four crew died.

On **22 December 1999**, Korean Air Cargo Flight 8509 - a **Boeing 747-2B5F**, registration **HL7451** - rolled into the ground shortly after taking off from **London Stansted**. **All four crew died.**

### The instrument

The captain's **attitude director indicator** was being fed faulty roll information by a failed **inertial navigation unit**. It showed the aircraft **wings level** while it was in fact banking steeply left.

Taking off into darkness, with no outside horizon to check against, the captain flew the instrument. The aircraft rolled past 90 degrees and struck the ground.

This is the same trap that destroyed [Air India 855](/accidents_with_boeing_747s/air-india-855.html) in 1978, in almost exactly the same way: a failed attitude reference, a dark departure with no visual horizon, and a captain flying an instrument that was lying to him.

### The repair that did not fix it

The fault **had already been reported** on the inbound sector.

At Stansted, maintenance staff **did not have the correct manual**. They tested the ADI itself, saw it respond, and concluded the problem was resolved. But the test button they used **checked only the ADI, not the inertial navigation unit feeding it** - and the INU was the actual fault.

The aircraft was released with the defect intact.

### The flight deck

Two other people knew something was wrong.

The **first officer's own ADI was working correctly** and showed the true bank angle. He did not intervene.

The **flight engineer repeatedly called out** that the instruments disagreed. He was not heeded.

### What changed

The AAIB's recommendations went to **crew resource management**. It urged Korean Air to update its training and flight quality assurance programmes, and - pointedly - to adapt imported Western CRM training so that it worked within Korean cultural norms rather than against them, because a steep authority gradient on the flight deck had again stopped junior crew from being effective.

That is the same conclusion reached after [Korean Air 801](/accidents_with_boeing_747s/korean-air-801.html) two years earlier. Korean Air subsequently undertook a widely studied safety overhaul, and its record since is entirely different.

### Related

- [Air India 855 - the same instrument failure](/accidents_with_boeing_747s/air-india-855.html)
- [Korean Air 801](/accidents_with_boeing_747s/korean-air-801.html)
- [Tenerife - where CRM came from](/accidents_with_boeing_747s/tenerife.html)

## Lufthansa Flight 540

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/lufthansa-540.html*

Lufthansa Flight 540 crashed after takeoff at Nairobi in 1974. Read the aircraft details, leading-edge configuration findings and survival figures.

On **20 November 1974**, Lufthansa Flight 540 crashed shortly after takeoff from Nairobi while continuing a Frankfurt - Nairobi - Johannesburg service. The aircraft was **Boeing 747-130 D-ABYB**, named *Hessen*. Of **157 people aboard, 59 died and 98 survived**.

### What happened

The aircraft became airborne but failed to climb normally. It struck the ground beyond the runway and caught fire. This was the first fatal crash of a Boeing 747 in airline service.

### Investigation findings

The investigation identified a stall with the leading-edge high-lift devices retracted. The trailing-edge flaps had been set for takeoff, but the pneumatic supply needed to extend the leading-edge devices was unavailable because the relevant bleed-air valves had not been opened.

That distinction matters: setting the main flaps did not establish that every part of the high-lift system was ready. The available takeoff warning did not adequately alert the crew to this particular configuration.

### Safety context

The case illustrates the need to verify actual system indications, as well as control selections, before takeoff. The investigation report below provides the detailed findings and recommendations.

### Related

- [747-100](/boeing_747_family/747-100.php)
- [All accidents and incidents](/accidents_with_boeing_747s/)

## National Airlines Flight 102

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/national-airlines-102.html*

National Airlines Flight 102 crashed at Bagram in 2013. Read how inadequately restrained cargo damaged the 747 freighter's flight controls.

On **29 April 2013**, National Airlines Flight 102 crashed immediately after takeoff from **Bagram, Afghanistan**, on a cargo flight to Dubai. The **Boeing 747-400BCF, N949CA**, climbed steeply, stalled and struck the ground. **All seven crew members died**.

### What happened

The aircraft carried five heavy military vehicles: two M-ATVs and three Cougars. Investigators found that at least the rearmost M-ATV broke free of its restraints and moved aft during takeoff.

The vehicle penetrated the aft pressure bulkhead and damaged hydraulic systems 1 and 2 and components of the horizontal stabilizer drive mechanism. This left the aircraft uncontrollable. The findings go beyond the simplified explanation that a cargo shift merely moved the centre of gravity.

### Investigation findings

The NTSB identified inadequate National Airlines procedures for restraining special cargo as the probable cause. Those procedures lacked required restraint information and included unsafe methods. The resulting cargo restraint was improper.

The FAA's inadequate oversight of the airline's special-cargo operations contributed to the accident. The investigation led to recommendations addressing cargo restraint guidance, training and oversight.

### Aircraft and crew

A 747-400BCF is a passenger 747 converted to a freighter. The seven people aboard included the flight crew, an augmented crew, a loadmaster and two mechanics.

### Related

- [747 freighters](/boeing_747_family/747-400f.php)
- [Accident footage, with context](/videos/horrific-boeing-747-crash.html)
- [All accidents and incidents](/accidents_with_boeing_747s/)

## Pan Am 103, Lockerbie, 21 December 1988

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/pan-am-103.html*

A bomb destroyed Pan Am 103 over Lockerbie on 21 December 1988. 259 people on board and 11 on the ground were killed.

On **21 December 1988**, Pan Am Flight 103 was destroyed by a bomb over **Lockerbie, Scotland**.

**259 people aboard died - 243 passengers and 16 crew - along with 11 residents of Lockerbie**, killed when wreckage fell on the town. 270 in total.

### The aircraft

N739PA, a **Boeing 747-121** named *Clipper Maid of the Seas*, one of the early [747-100s](/boeing_747_family/747-100.php).

### What happened

An explosive device in the forward cargo hold detonated at **31,000 feet**, blowing a hole roughly 50 cm across in the fuselage. At that altitude and speed, a breach of that size in a pressurised structure does not stay local: the aircraft broke apart within seconds.

### What followed

The investigation was one of the largest ever conducted, and the case remained in the courts for decades.

For aviation more broadly, Lockerbie reshaped **security**. The most consequential change was **baggage reconciliation** - the requirement that hold baggage travels only when its passenger is aboard, so that a bag cannot be checked in and then abandoned. Screening of hold baggage, and the sharing of threat intelligence between airlines and governments, were also overhauled.

It also exposed how badly warnings had been handled: a specific threat warning received before the flight was found, the day after the bombing, under a pile of papers on a desk.

**Pan Am** - the airline that had launched the 747 in 1970 and had ordered it into existence - ceased operations in 1991.

### Related

- [All 747 accidents](/accidents_with_boeing_747s/)
- [The 747-100](/boeing_747_family/747-100.php)
- [Airlines that flew the 747](/airlines/)

## Pan Am 73, Karachi, 5 September 1986

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/pan-am-73.html*

Four hijackers seized Pan Am 73 on the ground at Karachi on 5 September 1986. Twenty people died, including purser Neerja Bhanot.

On **5 September 1986**, four members of the Abu Nidal Organization seized Pan Am Flight 73 while it stood at **Jinnah International Airport, Karachi**. **Twenty people died** - passengers from India, the United Kingdom, Italy, Pakistan and Mexico.

The aircraft was a [Boeing 747-121](/boeing_747_family/747-100.php) named *Clipper Empress of the Seas*.

### What happened

The hijackers boarded dressed as **airport security guards**, armed with assault rifles, pistols, grenades and explosive belts.

The **flight crew escaped through an overhead emergency hatch** in the cockpit roof. This was not abandonment: without pilots the aircraft could not be flown anywhere, and immobilising it on the ground was the recognised counter-hijack response of the period. It confined the situation to Karachi.

The standoff lasted around sixteen hours. When the aircraft's auxiliary power finally failed and the cabin went dark, the hijackers opened fire on the passengers and threw grenades.

### Neerja Bhanot

The senior purser, **Neerja Bhanot**, was 22 years old.

It was Bhanot who **relayed the hijack code to the flight crew**, which is what allowed them to leave and immobilise the aircraft. Through the hours that followed she is credited with hiding passengers' passports so that Americans could not be identified and singled out, and when the shooting began she opened an emergency exit and helped passengers out.

She was shot dead shielding children from gunfire.

She was posthumously awarded India's **Ashok Chakra**, its highest peacetime gallantry decoration, a United States **Special Courage** award, and Pakistan's **Tamgha-e-Pakistan** and **Nishan-e-Pakistan** - an unusual set of honours from three countries that agree on very little.

### Why it belongs here

Most of the [747 accidents on this site](/accidents_with_boeing_747s/) turn on engineering: a repair, a fuse pin, a fuel tank, an instrument. This one does not. The aircraft was undamaged in any way that mattered and never left the ground.

It is included because it happened to a 747, because 20 people died aboard one, and because what the cabin crew did that night is part of the type's history as much as any structural test.

### Related

- [All 747 accidents](/accidents_with_boeing_747s/)
- [Pan Am 103](/accidents_with_boeing_747s/pan-am-103.html)
- [The 747-100](/boeing_747_family/747-100.php)

## Pan Am Flight 830

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/pan-am-830.html*

Pan Am Flight 830 suffered a cabin bombing near Hawaii in 1982. Read about the emergency landing, casualties, aircraft and subsequent prosecution.

On **11 August 1982**, a bomb exploded aboard **Pan Am Flight 830** during the Tokyo - Honolulu sector of a service continuing to Los Angeles. The aircraft was **Boeing 747-121 N754PA**, named *Clipper Ocean Rover*.

### What happened

The explosion damaged the passenger cabin over the Pacific Ocean near Hawaii. **One passenger was killed and 16 people were injured**. The flight crew retained control and landed at Honolulu. Of the **285 people aboard, 284 survived**.

This was a deliberate attack on an aircraft, rather than an accident attributed to an aircraft system malfunction.

### Investigation and prosecution

The U.S. Department of Justice records the bombing and the subsequent prosecution of Mohammed Rashed. He was prosecuted in Greece, later brought to the United States, and pleaded guilty in the U.S. case in 2002. His U.S. sentencing took place in March 2006.

The Justice Department's account is the primary source for that prosecution history. Aircraft identification and the emergency-landing details are documented in the separate flight account linked below.

### Historical context

Unlike the later [Pan Am 103 bombing](/accidents_with_boeing_747s/pan-am-103.html), this aircraft remained controllable after the explosion. Both events belong in the 747's history, but their outcomes and damage should not be conflated.

### Related

- [Pan Am Flight 73](/accidents_with_boeing_747s/pan-am-73.html)
- [All accidents and incidents](/accidents_with_boeing_747s/)

## Singapore Airlines 006, 31 October 2000

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/singapore-airlines-006.html*

A 747-412 took off on closed runway 05R at Taipei during Typhoon Xangsane and struck construction equipment. 83 of 179 aboard died.

On **31 October 2000**, Singapore Airlines Flight 006 began its takeoff roll on the **wrong runway** at Taipei's Taoyuan airport and struck construction machinery. **83 of the 179 people aboard died**; 96 survived, two of whom died later of burns.

The aircraft was **9V-SPK**, a [Boeing 747-412](/boeing_747_family/747-400.php). It was Singapore Airlines' first fatal accident.

### What happened

The aircraft was cleared for **runway 05L**. It lined up on **05R** - a parallel runway that was **closed for construction**, with excavators, rollers and other equipment on it.

The weather was **Typhoon Xangsane**. Visibility was very poor, and the crew could not see the machinery ahead of them.

### The disagreement about why

The two investigating authorities did not agree, and both positions are worth stating.

**Taiwan's Aviation Safety Council** attributed the accident to crew error: the crew did not adequately review the taxi route, and did not confirm from their own instruments that the aircraft was aligned with the correct runway before applying takeoff thrust.

**Singapore's Ministry of Transport** disputed the emphasis, pointing out that the airport had **no ground movement radar**, that the aircraft was **out of sight of the tower** in the weather, and that the closed runway lacked adequate markings and barriers indicating it was out of use.

Both descriptions are true. The crew made the error; the airport gave them every opportunity to make it and no means of catching it.

### Why it is instructive

Runway confusion is a persistent hazard, and it is rarely about competence. It happens at night, in weather, on unfamiliar airfields, when a taxi route crosses a parallel runway - and the defences against it are mostly environmental rather than human: **ground radar, clear markings, physical barriers on closed runways, and cockpit position displays**.

Modern airport moving-map displays, which show the aircraft's own position on the airfield, exist precisely for this. The [747-8's flight deck](/everything-about-the-boeing-747-8/boeing-747-8-flight-deck.html) includes one.

The flight number was changed from SQ006 to SQ30 two weeks afterwards.

### Related

- [All 747 accidents](/accidents_with_boeing_747s/)
- [The 747-400](/boeing_747_family/747-400.php)

## Tenerife, 27 March 1977

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/tenerife.html*

583 died when a KLM 747 began its takeoff while a Pan Am 747 was still on the runway. It produced standard phraseology and crew resource management.

On **27 March 1977**, two Boeing 747s collided on the runway at Los Rodeos airport, Tenerife. **583 people died.** It remains the deadliest accident in aviation history.

### How both aircraft came to be there

Neither was supposed to be at Tenerife. Both were bound for Las Palmas, and both were diverted after a bomb exploded in the terminal there. Los Rodeos is a small airport that suddenly had to absorb several diverted widebodies, which left aircraft parked on the taxiway - so departing aircraft had to taxi along the runway itself and turn back at the end.

Then the fog came in.

### What happened

| | |
|---|---|
| **KLM 4805** | Boeing 747-206B, 248 aboard |
| **Pan Am 1736** | Boeing 747-121, 396 aboard |

The KLM aircraft, having back-taxied and turned, began its takeoff run while the Pan Am aircraft was still taxiing on the same runway in fog. The two collided.

**All 248 aboard the KLM aircraft died.** Of the 396 on the Pan Am aircraft, **335 died and 61 survived**, mostly from the forward section.

### Why it happened

No single failure explains it. The investigation identified a chain:

- **The KLM captain began the takeoff without clearance**, believing he had it.
- **Ambiguous phraseology.** The exchange used words like "OK" and "at take-off", which could be read as either a statement of position or a clearance.
- **Simultaneous radio transmissions** produced a squeal that blocked the crucial message.
- **Fog** meant neither crew nor the tower could see the runway.
- **Time pressure.** The KLM captain was concerned about running out of legally permitted duty hours.

### What changed

Two of the most important reforms in aviation history came directly from this accident.

**Standard phraseology became mandatory.** Ambiguous words were removed from clearances. The word **"takeoff" is now reserved exclusively for the actual takeoff clearance** - at every other point crews and controllers say "departure". Read-backs of clearances became compulsory.

**Crew resource management.** The KLM flight engineer had questioned whether the Pan Am aircraft was clear, and did not press it against a senior captain. CRM training was developed to make challenging a superior a normal, expected part of the job rather than an act of insubordination. It is now standard worldwide, and has since spread to medicine and other fields.

Almost every airline pilot flying today has been trained in habits that exist because of what happened at Tenerife.

### Related

- [All 747 accidents](/accidents_with_boeing_747s/)
- [The 747-100](/boeing_747_family/747-100.php) and [747-200](/boeing_747_family/747-200.php)

## TWA 800, 17 July 1996

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/twa-800.html*

An explosion in the centre wing fuel tank destroyed TWA 800 in 1996, killing all 230 aboard and leading to mandatory fuel tank inerting.

On **17 July 1996**, TWA Flight 800 - a **Boeing 747-131** - broke apart off Long Island shortly after departing New York. **All 230 people aboard died.**

### The cause

The NTSB determined the probable cause to be an **explosion of the centre wing fuel tank**, from ignition of a flammable fuel and air mixture inside it.

The ignition source was never established with certainty. The most likely candidate the investigation identified was a **short circuit outside the tank** that allowed excessive voltage to reach it through the wiring of the fuel quantity indication system.

The underlying condition mattered more than the spark. The centre tank was nearly empty, and had been warmed by the air conditioning packs beneath it while the aircraft sat on the ground in summer heat. A nearly empty warm tank contains a large volume of fuel vapour in air - which, unlike liquid fuel, is explosive.

### What changed

This is the clearest case of a 747 accident producing a design change applied across the whole industry.

Regulators concluded that the answer was not only to chase every possible ignition source but to **remove the flammable mixture**. In 2008 the US Department of Transportation issued a final rule requiring **fuel tank inerting** - pumping nitrogen-enriched air into the tank so the vapour above the fuel cannot burn.

The rule applied to centre wing tanks on new passenger and cargo aircraft, and to passenger aircraft built through most of the 1990s. Inerting systems are now standard.

Wiring inspection standards for ageing aircraft were also substantially tightened as a result.

### Related

- [All 747 accidents](/accidents_with_boeing_747s/)
- [The 747 fuel system](/boeing-747-internals/fuel-system.html) - including the centre wing tank
- [The 747-100](/boeing_747_family/747-100.php)

## UPS 6, Dubai, 3 September 2010

*URL: https://www.boeing-747.com/accidents_with_boeing_747s/ups-6.html*

An in-flight cargo fire aboard a 747-400F carrying 81,000 lithium batteries filled the cockpit with smoke and killed both crew near Dubai.

On **3 September 2010**, UPS Airlines Flight 6 - a **Boeing 747-44AF**, registration **N571UP** - suffered an in-flight cargo fire shortly after departing Dubai for Cologne. **Both crew members died.**

### The cargo

The aircraft was carrying **more than 81,000 lithium batteries** along with other combustible material.

### What happened

Fire broke out in the cargo hold and **smoke flooded the cockpit** within minutes. That is the detail that made this accident unsurvivable.

Captain **Douglas Lampe** lost consciousness from hypoxia. First Officer **Matthew Bell** was left flying an aircraft whose instruments he could not see through the smoke, using radio relay from another aircraft for guidance. The fire also destroyed **elevator control**, leaving the aircraft unable to be flown accurately in pitch.

It came down near Dubai.

### Why smoke, not flame, was the killer

A main-deck freighter fire is a different problem from a fire in a passenger aircraft's belly hold, as the [Asiana 991](/accidents_with_boeing_747s/asiana-991.html) page sets out. But UPS 6 exposed something more specific: **the flight deck of a freighter is not sealed from the main deck** the way a passenger cabin is, and once smoke enters it the crew cannot see the instruments.

Lithium cells in thermal runaway supply their own oxidiser, so conventional suppression - which works by displacing oxygen - does not reliably stop them.

### What changed

**Boeing revised the 747-400F fire checklists**, requiring that at least one of the three air conditioning systems be left running during a cargo fire, specifically to keep smoke from accumulating on the flight deck. That is a direct, concrete change traceable to this accident.

**The FAA restricted lithium batteries on passenger aircraft** and issued cargo alerts. Together with Asiana 991 the following year, this accident pushed **ICAO to begin work in 2012** on new standards for carrying lithium batteries by air - rules that have tightened repeatedly since, covering quantity, state of charge, packaging and segregation.

It also reopened a debate that has not fully settled: whether freighter crews should have **smoke hoods and vision assurance equipment** as standard, and whether main-deck holds need active fire suppression rather than detection alone.

### Related

- [Asiana 991 - the same problem a year later](/accidents_with_boeing_747s/asiana-991.html)
- [How 747 freight works](/features/how-747-freight-works.html)
- [The 747-400F](/boeing_747_family/747-400f.php)

## Active Boeing 747 Fleet Tracker

*URL: https://www.boeing-747.com/active-boeing-747-fleet.html*

Official sources still show passenger 747 service at Lufthansa, Korean Air, Air China and Rossiya Airlines, while large freighter fleets remain with Atlas, UPS, Cargolux and Kalitta.

This tracker answers a narrower, more defensible question than "how many 747s still exist?" It records **the latest exact counts published by operators themselves** and separately notes whether their current websites still advertise the type. It does not estimate stored aircraft or claim an exact worldwide active total.

**Last checked: 2026-09-04 (4 September 2026).** Fleet counts are snapshots, not live telemetry. Check the airline before booking or shipping.

### Scheduled passenger operators

| Operator | Variant | Aircraft | Evidence date |
|---|---|---:|---|
| [Lufthansa](https://report.lufthansagroup.com/2025/annual-report/en/combined-management-report/principles-of-the-group/fleet-and-route-network/fleet/) | Boeing 747 all variants | 27 | 2025-12-31 (31 December 2025) |
| [Korean Air](https://www.koreanair.com/contents/footer/terms-and-policies/duty-of-notice/ke-aircraft) | Boeing 747-8I | 4 | 2026-07 (July 2026) |
| [Air China](https://webresource.airchina.com.cn/airchinacms/3/upload/resources/file/10112.pdf) | Boeing 747 all variants | 10 | 2024-12-31 (31 December 2024) |
| [Rossiya Airlines](https://www.rossiya-airlines.ru/about/about_us/fleet/vozdushnye_suda/) | Boeing 747-400 | 8 | Checked 2026-09-04 (4 September 2026) |

The dates matter. Lufthansa has announced a continuing fleet transition, and aircraft assignments can change between booking and departure. Air China's current website confirms the type remains in its product, but the most recent exact model count located in an official report is older than the other snapshots; it is therefore shown with its date rather than presented as a live total.

### Large cargo fleets confirmed by operators

| Operator | Variant | Aircraft | Evidence date |
|---|---|---:|---|
| [Atlas Air Worldwide](https://www.atlasairworldwide.com/2026/03/charting-a-course-for-collaboration-a-conversation-with-atlas-air-worldwides-graham-perkins/) | Boeing 747-8F | 17 | 2026-03 (March 2026) |
| [Atlas Air Worldwide](https://www.atlasairworldwide.com/2026/03/charting-a-course-for-collaboration-a-conversation-with-atlas-air-worldwides-graham-perkins/) | Boeing 747-400F | 39 | 2026-03 (March 2026) |
| [Atlas Air Worldwide](https://www.atlasairworldwide.com/2026/03/charting-a-course-for-collaboration-a-conversation-with-atlas-air-worldwides-graham-perkins/) | Boeing 747 Large Cargo Freighter | 4 | 2026-03 (March 2026) |
| [UPS Airlines](https://investors.ups.com/_assets/_8efcb5c78bd0c1ea12912c608d7c5feb/ups/db/1175/10991/annual_report/UPS%2B2025%2BAnnual%2BReport%2Band%2B2026%2BProxy%2BStatement.pdf) | Boeing 747-8F | 30 | 2025-12-31 (31 December 2025) |
| [UPS Airlines](https://investors.ups.com/_assets/_8efcb5c78bd0c1ea12912c608d7c5feb/ups/db/1175/10991/annual_report/UPS%2B2025%2BAnnual%2BReport%2Band%2B2026%2BProxy%2BStatement.pdf) | Boeing 747-400F | 11 | 2025-12-31 (31 December 2025) |
| [UPS Airlines](https://investors.ups.com/_assets/_8efcb5c78bd0c1ea12912c608d7c5feb/ups/db/1175/10991/annual_report/UPS%2B2025%2BAnnual%2BReport%2Band%2B2026%2BProxy%2BStatement.pdf) | Boeing 747-400BCF | 2 | 2025-12-31 (31 December 2025) |
| [Cargolux Group](https://www.cargolux.com/fleet-equipment/) | Boeing 747-400 and 747-8F | 30 | Checked 2026-09-04 (4 September 2026) |
| [Kalitta Air](https://www.kalittaair.com/about) | Boeing 747-400F | 22 | Checked 2026-09-04 (4 September 2026) |
| [Korean Air](https://www.koreanair.com/contents/footer/terms-and-policies/duty-of-notice/ke-aircraft) | Boeing 747-8F | 7 | 2026-07 (July 2026) |
| [Korean Air](https://www.koreanair.com/contents/footer/terms-and-policies/duty-of-notice/ke-aircraft) | Boeing 747-400F | 4 | 2026-07 (July 2026) |

This is not a complete cargo-operator census. It deliberately includes only fleets for which a current operator page or recent first-party disclosure gives a defensible number.

### How to find a bookable passenger flight

1. Search the airline's own booking engine rather than relying on a historic route list.
2. Open the flight details and look for **Boeing 747-8**, **B747-8**, **74H**, **Boeing 747-400** or **744**.
3. Recheck shortly before travel. Airlines may substitute aircraft for operational reasons.
4. Treat a seat map with an upper deck as supporting evidence, not a guarantee.

The most reliable starting points are Lufthansa's current [747-8 aircraft page](https://www.lufthansa.com/us/en/74h.html), Korean Air's [aircraft register](https://www.koreanair.com/contents/footer/terms-and-policies/duty-of-notice/ke-aircraft), Air China's [aircraft introduction](https://webresource.airchina.com.cn/en-US/content/travel_info/flight_experience/cabin/introduction/), and Rossiya's [fleet page](https://www.rossiya-airlines.ru/about/about_us/fleet/vozdushnye_suda/).

### Download the data

- [CSV: active Boeing 747 operator snapshots](/data/active-boeing-747-operators.csv)
- [JSON: active Boeing 747 operator snapshots](/data/active-boeing-747-operators.json)

Both files carry the evidence date and source URL for every row. They are licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/); attribution should name Boeing-747.com and link back to this page.

### What this tracker does not claim

An airline owning an aircraft does not prove that it flew that day. Stored, maintenance, charter, government and test aircraft also make a single "active fleet" number difficult to audit. For that reason, unsourced estimates are excluded rather than blended into a seemingly precise worldwide total.

For the historical context, see [how many 747s are still flying](/blog/how-many-747s-are-still-flying.html), [the 747 in 2026](/news.php), and the [airline histories](/airlines/).

## Boeing 747 Airlines: Launch Customers and Retirements

*URL: https://www.boeing-747.com/airlines/*

Pan Am launched the 747 in 1970. Japan Airlines flew the most, 108. In 2026 four airlines still fly passengers on one, and the freighters carry on.

More than a hundred airlines have flown the Boeing 747 since 1970. This page follows their history and retirements. For current operator counts, use the [active Boeing 747 fleet tracker](/active-boeing-747-fleet.html).

### Who still flies passengers on a 747

The confirmed passenger operators are Lufthansa, Korean Air, Air China and Rossiya Airlines. These are dated disclosures reviewed on 2026-09-04 (4 September 2026).

| Operator | Variant | Aircraft | Evidence date |
|---|---|---:|---|
| [Lufthansa](https://report.lufthansagroup.com/2025/annual-report/en/combined-management-report/principles-of-the-group/fleet-and-route-network/fleet/) | Boeing 747 all variants | 27 | 2025-12-31 (31 December 2025) |
| [Korean Air](https://www.koreanair.com/contents/footer/terms-and-policies/duty-of-notice/ke-aircraft) | Boeing 747-8I | 4 | 2026-07 (July 2026) |
| [Air China](https://webresource.airchina.com.cn/airchinacms/3/upload/resources/file/10112.pdf) | Boeing 747 all variants | 10 | 2024-12-31 (31 December 2024) |
| [Rossiya Airlines](https://www.rossiya-airlines.ru/about/about_us/fleet/vozdushnye_suda/) | Boeing 747-400 | 8 | Checked 2026-09-04 (4 September 2026) |

Lufthansa's position is not an accident. It launched the [747-8 Intercontinental](/boeing_747_family/747-8i.php) in December 2006 and was for a long time its only airline customer - Boeing publicly reassessed the whole programme in early 2009 because of it. Only 48 Intercontinentals were ever built, and Lufthansa took the largest share.

### Who still flies freight

This is where the 747 lives on, and the fleets are far larger than the passenger ones.

| Operator | Approximate 747 fleet |
|---|---|
| **Atlas Air** | ~63 - the largest 747 fleet in the world, mostly [747-400F](/boeing_747_family/747-400f.php) with 15 [747-8F](/boeing_747_family/747-8f.php) |
| **UPS Airlines** | ~43, including 30 747-8Fs |
| **Cargolux** | ~26 |
| **Kalitta Air** | ~22 |
| **Cathay Cargo** | ~20 |
| **Korean Air Cargo** | 7 747-8Fs |
| **Nippon Cargo Airlines** | 8 747-8Fs |

Atlas Air is also the airline that closed the production line: the [very last 747 built was delivered to Atlas on 31 January 2023](/blog/final-boeing-747-delivered-to-atlas-air.html).

The reason freight endured is structural. A passenger 747 is retired when its fuel burn per seat stops competing with a newer twin. A freighter is retired when the airframe runs out of cycles - and until the 777F matured, nothing else offered a [nose cargo door](/boeing_747_family/747-400f.php) able to swallow loads longer than any side door.

### The largest 747 fleets ever

By aircraft delivered, across all variants:

| Airline | Delivered |
|---|---|
| Japan Airlines | 108 |
| British Airways | 94 |
| Singapore Airlines | 93 |
| Lufthansa | 81 |
| Korean Air | 79 |
| United Airlines | 68 |
| Qantas | 57 |

Japan Airlines at the top is worth a moment. Japanese carriers did not simply buy a lot of 747s - they bought 747s built specially for them. The [747-100SR](/boeing_747_family/747-100sr.php), [747-300SR](/boeing_747_family/747-300sr.php) and [747-400D](/boeing_747_family/747-400d.php) were high-density, short-range variants with reinforced structure for enormous numbers of takeoffs and landings, and the -400D went without winglets because on a one-hour sector they never repay their weight.

The [stretched upper deck](/boeing_747_family/747-300.php) that defines every modern 747 also began as a modification on two Japanese aircraft.

### Fleet histories

Individual histories for the airlines that flew the most, and the one that flies the most now.

| Airline | Delivered | |
|---|---|---|
| [Japan Airlines](/airlines/japan-airlines.html) | 108 | Boeing built three variants for them |
| [British Airways](/airlines/british-airways.html) | 94 | Largest 747-400 fleet in the world |
| [Singapore Airlines](/airlines/singapore-airlines.html) | 93 | The Megatop fleet |
| [Lufthansa](/airlines/lufthansa.html) | 81 | Launched the 747-8, still flying |
| [Korean Air](/airlines/korean-air.html) | 79 | Took the last passenger 747 |
| [United Airlines](/airlines/united-airlines.html) | 68 | 47 years, ending where it began |
| [Pan Am](/airlines/pan-am.html) | 65 | Ordered the aircraft into existence |
| [Qantas](/airlines/qantas.html) | 57 | The only passenger 747-400ERs |
| [Atlas Air](/airlines/atlas-air.html) | ~63 today | Largest fleet now; took the final 747 |

### More airline histories

Histories for the other carriers with their own pages, from the launch era to today's freighter operators.

| Airline | 747s | |
|---|---|---|
| [Saudia](/airlines/saudia.html) | 63 | One of the largest 747-400 fleets |
| [Northwest Airlines](/airlines/northwest-airlines.html) | 53 | Launched the PW4000-powered 747-400 |
| [Air France](/airlines/air-france.html) | 53 | Opened the CDG 747 era; retired 2016 |
| [KLM](/airlines/klm.html) | 52 | The first CF6-powered 747 order |
| [ANA](/airlines/ana.html) | 45 | World-first 500-seat all-economy 747SR |
| [Polar Air Cargo](/airlines/polar-air-cargo.html) | 44 | Atlas Air Worldwide freighter arm |
| [UPS Airlines](/airlines/ups-airlines.html) | ~43 | The largest 747-8F customer |
| [South African Airways](/airlines/south-african-airways.html) | 30 | Set the 1976 747SP distance record |
| [Virgin Atlantic](/airlines/virgin-atlantic.html) | 30 | First flight was a leased 747-200 |
| [El Al](/airlines/el-al.html) | 26 | Nonstop Tel Aviv - New York pioneer |
| [Thai Airways](/airlines/thai-airways.html) | 26 | Six -200s, two -300s, eighteen -400s |
| [Cargolux](/airlines/cargolux.html) | 26 today | Launch customer for the 747-400F and 747-8F |
| [Air India](/airlines/air-india.html) | ~25 | Half a century of 747 service |
| [Kalitta Air](/airlines/kalitta-air.html) | 22 today | 58 flown across all generations |
| [Cathay Pacific](/airlines/cathay-pacific.html) | 20 today | 14 747-8Fs and 6 747-400ERFs |
| [Iberia](/airlines/iberia.html) | ~22 | All four classics; every one named after a writer |
| [Iran Air](/airlines/iran-air.html) | ~22 | Flew the world's last passenger 747SP |
| [Alitalia](/airlines/alitalia.html) | ~21 | -200s, including Combis and freighters |
| [Delta Air Lines](/airlines/delta-air-lines.html) | 21 | The last US airline to retire the 747 |
| [American Airlines](/airlines/american-airlines.html) | ~18 | An early -100 operator; one became NASA's Shuttle Carrier |
| [Air New Zealand](/airlines/air-new-zealand.html) | 15 | Opened Auckland - London; retired the type in 2014 |
| [Air Canada](/airlines/air-canada.html) | 15 | A dedicated Combi operator for 33 years |
| [TWA](/airlines/twa.html) | 15 | Entered 747 service in February 1970 |
| [Braniff International](/airlines/braniff-international.html) | 11 | The orange 'Great Pumpkin' and three 747SPs |
| [Swissair](/airlines/swissair.html) | 7 | Launch customer for the 747-300 |
| [SAS](/airlines/sas.html) | 6 | The 'Vikings' and Atlantic Combi freight |
| [National Airlines](/airlines/national-airlines.html) | 2 | Only two -100s, but Miami's first jumbos |

### The launch customer

**Pan American World Airways** took delivery of the first 747-100 on **13 December 1969** and flew the first commercial service from New York to London on **22 January 1970**.

Pan Am also drove the aircraft's most unusual variant. Together with Iran Air it asked for something that could fly New York to the Middle East and Tehran to New York nonstop - routes nothing then flying could serve. The answer was the [747SP](/boeing_747_family/747-100sp.php), nearly 48 feet shorter than a 747-100 so it could carry the fuel instead of the passengers.

Pan Am ceased operations in 1991.

### The long goodbye

Passenger 747 retirements ran for a decade and then, in 2020, arrived all at once.

| Airline | Last passenger 747 |
|---|---|
| Singapore Airlines | 2012 |
| Japan Airlines | 2011 |
| [Air New Zealand](/airlines/air-new-zealand.html) | 12 September 2014 |
| [All Nippon Airways](/blog/ana-to-retire-its-last-two.html) | 31 March 2014 |
| Air France | January 2016 |
| Cathay Pacific | 2016 |
| **United Airlines** | 7 November 2017 |
| **[Delta Air Lines](/airlines/delta-air-lines.html)** | December 2017 |
| **Qantas** | 22 July 2020 |
| **KLM** | March 2020 |
| **Virgin Atlantic** | 2020 |
| **British Airways** | 8 October 2020 |

**United** flew its last 747 service from San Francisco to Honolulu on 7 November 2017 - deliberately re-flying the route its first 747 had operated in July 1970. Tickets sold out in 90 minutes.

**Delta** operated the last scheduled 747 revenue flight by a US passenger airline, Seoul to Detroit, on 19 December 2017. The aircraft's final movement, a ferry flight to the Marana boneyard in Arizona, came on 3 January 2018.

**Qantas** made the most theatrical exit. On 22 July 2020, VH-OEJ left Sydney for Los Angeles as QF7474, and the crew drew a 275 km Qantas kangaroo in the sky off the New South Wales coast. On the way out it overflew the HARS museum and dipped its wings to VH-OJA, the 747-400 preserved there.

**British Airways** retired the type outright in July 2020 and sent its final two Heathrow aircraft away on 8 October 2020 - G-CIVB in the heritage Negus livery and G-CIVY in standard colours. A synchronised departure from parallel runways was planned and rained off.

### Why they all went at once

The 747 was already being retired steadily through the 2010s, for a reason that had nothing to do with the aircraft being bad: twin-engined types like the 777-300ER, 787 and A350 could fly the same routes with two engines instead of four, and did not need 400 seats filled to make money.

COVID-19 in 2020 simply removed the last reason to wait. Airlines with grounded fleets and no near-term demand brought forward retirements planned for 2021 and beyond, and several fleets went in weeks rather than years.

The freighters were untouched by that logic and are still working.

### Elsewhere on the site

- [The 747 family, variant by variant](/boeing_747_family/)
- [Special Boeing 747s](/special_boeing_747s/) - the aircraft that never flew for an airline at all
- [Accidents involving the Boeing 747](/accidents_with_boeing_747s/)
- [Links](/links.php) - museums where preserved 747s can be visited

## Air Canada

*URL: https://www.boeing-747.com/airlines/air-canada.html*

Air Canada operated about 15 Boeing 747s between 1971 and 2004 - five -100s, several -200 Combis built specially for mixed passenger and freight service, and -400s including those inherited from Canadian Airlines.

Air Canada flew the [747](/boeing_747_family/747-100.php) for **33 years**,
almost from the start of the type's airline career to the mid-2000s, and it was
one of the operators that leaned hardest on the **Combi**.

### The 747-100 years

The first aircraft, a 747-133, arrived in **February 1971** and went to work on
transatlantic and transcontinental services. Five -100s served through the 1970s
and into the mid-1980s before being phased out; some moved on to Iberia and Royal
Air Maroc.

### Built for the Combi

Air Canada took **three [747-200 Combis](/boeing_747_family/747-200m.php)** with
side cargo doors, the first in 1975, for routes that needed both passengers and
airfreight on the same aircraft - a sensible fit for Canadian transatlantic
services where cargo demand was strong but not enough to justify a full
freighter. A third Combi came second-hand from Qantas in 1987; the aircraft later
finished their working lives on lease to Garuda Indonesia.

In 1991 the airline took three new **747-433M Combis** with sealed-deck cargo
holds, continuing the concept into the -400 generation.

### The -400 and the end

From 2001 Air Canada's -400 fleet grew through the absorption of **Canadian
Airlines**, bringing four more aircraft. The final 747-400 revenue flight,
Frankfurt to Toronto, was on **31 October 2004**, after which Airbus A340s and
A330s took over the long-haul network. No Air Canada 747 was lost in an accident.

### Related

- [Airlines that flew the 747](/airlines/)
- [The 747-200M Combi](/boeing_747_family/747-200m.php) · [The 747-400](/boeing_747_family/747-400.php)
- [Delta Air Lines 747 fleet history](/airlines/delta-air-lines.html)

## Air France Boeing 747 fleet history

*URL: https://www.boeing-747.com/airlines/air-france.html*

Air France flew the 747 from 1970, ordered 53 new-build 747s including ten freighters, opened the Roissy-CDG era with the type, and retired its last passenger 747-400 in January 2016.

Air France became the European flag carrier of the 747, ordering 53 new-build examples across seventeen variants and flying the type for 46 years. The 747 was the aircraft that opened the Roissy-CDG era.

Air France introduced the 747-100 in 1970 (sixteen new-build -100s in its order table) and expanded through the -200 including the 747-200M Combi and a large 747-200F freighter force.

The new-build order table runs to **53 aircraft**: 16 × 747-100, 2 × 747-200B, 11 × 747-200M, 10 × 747-200F, 7 × 747-400, 5 × 747-400F and 2 × 747-400ERF. With leased and second-hand frames, more than 70 747s served the airline.

Air France and Lufthansa chose the General Electric CF6 for their 747-400s, and Air France's freighters carried up to about 110 tonnes on main-deck and lower-lobe pallets.

| Model | Notes |
|---|---|
| 747-100 | European launch fleet, from 1970 |
| 747-200B / -200M / -200F | Passenger, Combi and freighter versions |
| 747-400 / -400F / -400ERF | Later passenger and freighter fleet |

The last Air France passenger 747-400 flight was in **January 2016**; the freighter fleet was withdrawn later in the decade.

## Air India Boeing 747 fleet history

*URL: https://www.boeing-747.com/airlines/air-india.html*

Air India flew 747s from 1971 to 2021, the longest-running 747 operator in the region, retiring its 747-400s in March 2021 after the final aircraft left Mumbai for Seattle in April 2024.

Air India introduced the 747-200B in 1971 and flew a 747 line for a full half-century, retiring its 747-400s in 2021. Its first-generation 747s opened daily India - Europe and India - US routes.

Air India's first 747-200B joined the fleet in **1971**, and the airline went on to order **19 new-build 747s**: 11 × 747-200B, 2 × 747-300M Combis and 6 × 747-400s (with four later -400s acquired). In total about 25 747s served the airline across fifty years. The 747-400s flew from 1993, and Air India used them on long-haul routes to Europe, the Middle East and North America.

| Model | Notes |
|---|---|
| 747-200B | Launch fleet, from 1971 |
| 747-300M | Combi configuration |
| 747-400 / -400M | Long-haul fleet from 1993 |

The final passenger 747 flights ran in **March 2021**; the last four 747-400s were sold for freighter conversion and parting out, and the final airframe (VT-EVA, as N940AS) left Mumbai for Seattle in **April 2024**.

## Air New Zealand

*URL: https://www.boeing-747.com/airlines/air-new-zealand.html*

Air New Zealand operated 15 Boeing 747s from 1981 to 2014 - seven -200s that opened the Auckland - London and trans-Pacific routes, and eight -400s including the Lord of the Rings-liveried ZK-NBV that flew the last service.

Air New Zealand was a small national carrier with routes that stretched across
the world, and the [747](/boeing_747_family/747-400.php) was the aircraft that
made those routes work. Between 1981 and 2014 the airline flew **15 jumbos** -
seven [747-200s](/boeing_747_family/747-200.php) and eight
[747-400s](/boeing_747_family/747-400.php).

### Opening the long routes

The first 747 arrived in May 1981 as a -200, and within months Air New Zealand was
flying it to Sydney, Melbourne, Singapore and Los Angeles, replacing the DC-10 on
the airline's trunk services. An **Auckland - London** service followed in 1982,
routed through Papeete and Los Angeles, and by 1988 a weekly Auckland - London
service ran via Dallas/Fort Worth. The type was what turned Air New Zealand from a
regional operator into a long-haul airline.

### The 747-400 era

Eight -400s arrived between 1990 and 1998 and saw out the type. They carried the
airline's three-class long-haul cabin - Business Premier, Pacific Premium Economy
and Pacific Economy - and flew the routes to London, Los Angeles and Asia. The
aircraft were named after Māori waka (canoes), a naming thread the airline kept
for its long-haul fleet.

### The Lord of the Rings 747

**ZK-NBV *Christchurch***, the airline's last -400, wore a distinctive Lord of the
Rings livery from 2002 to 2004, part of a tourism marketing tie-in with the films.
It also flew the **final Air New Zealand 747 service**, Auckland to San Francisco
on **10 September 2014**, ending 33 years of jumbo operation. The airline replaced
the 747 with the Boeing 777 and 787.

### Notable events

In 1998 a 747-200 operating as **Air New Zealand Flight 24** was hijacked after
departure from Auckland; the aircraft returned safely and the incident ended
without loss of life. Air New Zealand never lost a 747 hull.

### Related

- [Airlines that flew the 747](/airlines/)
- [The 747-400](/boeing_747_family/747-400.php) · [The 747-200](/boeing_747_family/747-200.php)
- [Qantas 747 fleet history](/airlines/qantas.html)

## Alitalia

*URL: https://www.boeing-747.com/airlines/alitalia.html*

Alitalia flew about 21 Boeing 747s from 1970 to 2003, concentrating on the -200 - including Combis and freighters - on its North American and intercontinental routes from Rome and Milan.

Alitalia took its first [747](/boeing_747_family/747-100.php) in **May 1970**,
making it one of the first airlines in Europe to operate the type. Over the next
three decades it flew around **21 of them**, almost all of one variant.

### The 747-200 was the fleet

After just two [747-100s](/boeing_747_family/747-100.php) - the first named
*Neil Armstrong* - Alitalia standardised on the
[747-200](/boeing_747_family/747-200.php). It operated fourteen passenger
-200s, including some Combis, and five aircraft converted to
[freighters](/features/factory-vs-converted-747-freighters.html). The mix reflected Alitalia's
network: dense North American services from Rome and Milan, plus cargo routes
that kept the airframes working after the passenger cabins were retired.

The airline never flew a [747-300](/boeing_747_family/747-300.php). It did order
about ten [747-400s](/boeing_747_family/747-400.php) in 2000, but the order was
cancelled, and the delivery slots went to Virgin Atlantic. Alitalia's only -400
flying was a wet-leased freighter.

### Identity in the paint

Alitalia's 747s carried the airline's green, white and red livery, and one,
I-DEMF, was painted in the famous **Baci Perugina** chocolate advertisement
scheme. On 30 June 1982 a 747 was hijacked with 340 passengers aboard; the
aircraft was recovered and no 747 hull was lost, then or later.

### The end

Passenger 747s left the fleet in **February 2003**, with the freighters
continuing to 2006. One ex-Alitalia airframe was still flying in cargo service
with a Moldovan operator almost two decades after leaving Italy.

### Related

- [Airlines that flew the 747](/airlines/)
- [The 747-200](/boeing_747_family/747-200.php) · [The 747-200C](/boeing_747_family/747-200c.php)
- [Iberia 747 fleet history](/airlines/iberia.html)

## All Nippon Airways Boeing 747 fleet history

*URL: https://www.boeing-747.com/airlines/all-nippon-airways.html*

ANA introduced the world-first 500-seat all-economy Boeing 747SR in 1979, operated 45 new-build 747s including the short-haul -400D, and retired its last 747 in March 2014.

All Nippon Airways used the 747 to move huge numbers of people on Japanese domestic routes. Its "Super Jumbo" 747SRs were the world's first 500-seat-class airliners, and ANA kept flying 747s until 2014 - longer than almost any other airline.

ANA's first 747SR-100 entered domestic service on **25 January 1979** configured with around **546 economy seats** - a world first for capacity on a single aircraft.

The order table lists **45 new-build 747s** for ANA: 17 × 747-100SR, 5 × 747-200B, 12 × 747-400 and 11 × 747-400D, all powered by Pratt & Whitney engines.

The Super Jumbo SR fleet peaked at about **23 aircraft in 1989** - roughly a fifth of ANA's mainline fleet - and the rest of the 747 family grew the peak past 40 airframes.

| Model | Notes |
|---|---|
| 747SR-100 "Super Jumbo" | 546-seat domestic high-capacity, from 1979 |
| 747-200B | Longer-range passenger 747s |
| 747-400 "Techno-Jumbo" | From 1990 on international routes |
| 747-400D | High-capacity domestic -400 |

The last 747SR-100 retired on **10 March 2006**, and the final ANA 747 - a 24-year-old 747-400D - flew its last revenue flight on **31 March 2014**.

## American Airlines

*URL: https://www.boeing-747.com/airlines/american-airlines.html*

American Airlines flew 747-123s on transcontinental services from March 1970, converted six to freighters after the oil crisis, and later used two ex-TWA 747SPs on the Dallas/Fort Worth - Tokyo route until 1992.

American Airlines ordered the [747](/boeing_747_family/747-100.php) in
**November 1966**, among the first airlines to commit, and launched its jumbo
service in **March 1970** - initially using aircraft leased from Pan Am while
awaiting its own.

### The transcontinental era

The 747-123s flew the routes where American's traffic was densest: New
York and Boston to Los Angeles and San Francisco, plus Chicago, Dallas/Fort Worth
and Hawaii. The aircraft were the airline's flagship, marketed with the
"Astroliner" name.

Then came the **1973 oil crisis**, which made a four-engined aircraft that was
often half full expensive to operate. American pulled eight from passenger
service and had **six converted to 747-123SF freighters**, entering cargo service
in late 1974. The passenger -100s were retired by 1984 - 85, replaced by DC-10s more
suited to the routes.

### Two frames worth remembering

One American 747-100, N9668, was **sold to NASA in 1974** and became the
[Shuttle Carrier Aircraft](/special_boeing_747s/shuttle_carrier_aircraft.php)
N905NA, which ferried Space Shuttle orbiters across the United States. Today it is
preserved at Space Center Houston. Another, N9675, was leased to Universal
Pictures and appeared in the 1974 film *Airport 1975*.

### The 747SP interlude

American returned to the 747 in a small way in 1986, buying two
[747SPs](/boeing_747_family/747-100sp.php) from TWA for the long, thin
**Dallas/Fort Worth - Tokyo Narita** route. The SP's combination of extreme range
and small capacity was exactly right for a route with premium traffic but not
enough of it. The MD-11 took over in 1992, ending American's 747 story.

### Related

- [Airlines that flew the 747](/airlines/)
- [Shuttle Carrier Aircraft](/special_boeing_747s/shuttle_carrier_aircraft.php) · [The 747SP](/boeing_747_family/747-100sp.php)
- [Delta Air Lines 747 fleet history](/airlines/delta-air-lines.html)

## Atlas Air

*URL: https://www.boeing-747.com/airlines/atlas-air.html*

Atlas Air Worldwide reported 17 Boeing 747-8Fs, 39 747-400Fs and four Dreamlifters in March 2026, and received the final 747 in January 2023.

Atlas Air Worldwide reported **60 Boeing 747s** in March 2026: **17 [747-8Fs](/boeing_747_family/747-8f.php)**, **39 [747-400Fs](/boeing_747_family/747-400f.php)** and four Dreamlifters operated for Boeing.

More 747s fly for Atlas than for any airline that ever carried passengers on one.

### The last 747

On **31 January 2023**, Atlas took delivery of **N863GT** - the **1,574th and final Boeing 747**, closing a production run that had begun in 1968.

That the last one went to a freight operator is exactly right. The [freighters carried the programme](/features/how-747-freight-works.html) for a decade after passenger orders effectively stopped, because nothing else offered a nose door.

### Why a cargo airline has the biggest fleet

The economics are the reverse of a passenger operator's, and it is worth being explicit about why.

A passenger 747 is retired when its **fuel burn per seat** stops competing with a twin - a commercial judgement that can arrive while the airframe is in excellent condition. A freighter is retired when it **runs out of cycles**, or when the next [heavy check](/features/maintaining-a-747.html) costs more than the aircraft is worth.

Freight flies fewer, longer sectors. Cargo does not object to a dated cabin. And until the 777F matured there was no alternative for outsize loads.

### What comes next

Atlas's 747-8Fs were delivered into the early 2020s and are young by freighter standards. Their future depends on utilisation, maintenance economics and operator decisions, so this page does not assign an unsupported retirement year.

### Related

- [Airlines that flew the 747](/airlines/)
- [How 747 freight works](/features/how-747-freight-works.html)
- [The final 747 delivery](/blog/final-boeing-747-delivered-to-atlas-air.html)
- [Active Boeing 747 fleet tracker](/active-boeing-747-fleet.html)

## Braniff International Airways

*URL: https://www.boeing-747.com/airlines/braniff-international.html*

Braniff flew eleven Boeing 747s between 1971 and 1982, from the bright orange N601BN on the Dallas - Honolulu run to a post-deregulation fleet of leased -100s, -200s and three plush 747SPs.

Braniff International is remembered for colour - and its 747s wore the brightest
livery in the sky. In 1971 the airline took delivery of **N601BN**, which had the
distinction of being the **100th Boeing 747 built**. Painted in a vivid orange
scheme, it was nicknamed the "Great Pumpkin", "Big Orange" and "Fat Albert", and
flew Dallas/Fort Worth to Honolulu for years, often logging more than fifteen
hours a day in service.

### Deregulation and expansion

After deregulation Braniff tried to grow into a global airline, and the 747 was
the tool. It leased two American 747-100s and an ex-Lufthansa -100, then four
leased [747-200s](/boeing_747_family/747-200.php) from a mix of carriers, opening
routes from Boston to Europe and across the Pacific. N601BN itself flew the first
Dallas/Fort Worth - London Gatwick service in February 1978.

### The plush 747SP

Braniff ordered four **[747SPs](/boeing_747_family/747-100sp.php)** and took three.
They were configured for roughly **192 passengers in a luxury three-class
layout** - a very different aircraft from the 400-seat density most operators
chose, and a bet on high-yield traffic on routes such as Los Angeles - Guam - Hong
Kong and onward to South America. A proposed Dallas - Houston - Bahrain "oil run"
never happened.

### The collapse

The expansion outran the airline's finances. Braniff filed for bankruptcy on **12
May 1982**, and N601BN - the Great Pumpkin - flew the airline's very last
service. The SPs were dispersed to Boeing, Aerolíneas Argentinas and Pan Am.
Eleven 747s, no hull losses, none preserved.

### Related

- [Airlines that flew the 747](/airlines/)
- [The 747SP](/boeing_747_family/747-100sp.php) · [The 747-200](/boeing_747_family/747-200.php)
- [American Airlines 747 fleet history](/airlines/american-airlines.html)

## British Airways

*URL: https://www.boeing-747.com/airlines/british-airways.html*

BA took 94 Boeing 747s and was the world's largest 747-400 operator. It retired the type in July 2020, four years early.

British Airways took **94 Boeing 747s**, the second-highest total of any airline after [Japan Airlines](/airlines/japan-airlines.html), and was **the largest operator of the [747-400](/boeing_747_family/747-400.php) in the world**.

### The Club World upper deck

BA configured the [upper deck](/interiors/upper-deck-lounges.html) as **Club World**, its business cabin, and it acquired a following out of all proportion to its size - roughly twenty seats with their own galley, their own crew and a staircase separating them from the rest of the aircraft.

For a certain kind of frequent flyer, the BA 747 upper deck was the reason to choose the flight. The [seat maps are here](/seating_layouts_on_boeing_747/british_airways_747_seat_layouts.php).

### The retirement

BA had planned to fly the 747 until around 2024. **COVID-19 ended that in July 2020**, when the airline announced the type would be retired with immediate effect.

The final two Heathrow aircraft departed on **8 October 2020**:

- **G-CIVB**, painted in the retro **Negus** livery
- **G-CIVY**, in standard Chatham Dockyard colours

A **synchronised departure from parallel runways** was planned. It rained, and they went separately - which is either a disappointment or entirely appropriate, depending on your view of British ceremony.

### What replaced it

777s and 787s, and later A350s - the same substitution every operator made. Four engines could not justify themselves once twins could fly the same routes.

### Related

- [Airlines that flew the 747](/airlines/)
- [The farewell flights](/features/the-farewell-flights.html)
- [British Airways seat layouts](/seating_layouts_on_boeing_747/british_airways_747_seat_layouts.php)

## Cargolux Boeing 747 fleet history

*URL: https://www.boeing-747.com/airlines/cargolux.html*

Luxembourg's Cargolux was launch customer for the 747-400F (1993) and 747-8F (2011), and currently operates 26 Boeing 747 freighters - 12 747-400Fs and 14 747-8Fs.

Cargolux, founded in 1970 and based in Luxembourg, has built its entire business around the Boeing 747 freighter and is the largest 747 cargo operator in Europe.

Cargolux ordered its first 747-200F in 1977 and the aircraft arrived in service in 1979 and 1980. Its new-build fleet totals **32 747s**: 2 × 747-200F, 16 × 747-400F and 14 × 747-8F.

The airline was the **launch customer for the 747-400F** in 1993 and the **launch customer for the 747-8F**, taking delivery of the first 747-8F - flying on GEnx-2B engines - on **12 October 2011**.

| Model | Notes |
|---|---|
| 747-200F (2) | First freighters, from 1979 |
| 747-400F (16) | The 1993 launch fleet |
| 747-8F (14) | Current flagship, from 2011 |

Today Cargolux operates **26 747s** (12 × 747-400F and 14 × 747-8F). It has ordered Boeing 777-8Fs to eventually replace the 747-400Fs.

## Cathay Pacific Boeing 747 fleet history

*URL: https://www.boeing-747.com/airlines/cathay-pacific.html*

Cathay Pacific flew 747s for nearly four decades, ending passenger 747-400 service in October 2016, and today operates 20 747 freighters: 14 747-8Fs and 6 747-400ERFs.

Cathay Pacific, the Hong Kong carrier, operated the 747 in its passenger fleet from 1979 until October 2016 and became one of the largest operators of the aircraft. Today it flies 747s purely as freighters.

Cathay began with 747-200s in 1979 and added 747-300s before building a large 747-400 passenger fleet on Asia-Pacific and long-haul routes.

Its freight operation is one of the world's biggest: **20 Boeing 747s** - 14 × 747-8F and 6 × 747-400ERF - plus committed future 747-8Fs. Cathay retired its last seven classic 747-200F "freighters" by 2012.

Passenger 747-400 service ended on **1 October 2016** with flights CX542 and CX543 between Hong Kong and Haneda, followed by the CX8747 farewell flyover - nearly four decades after the first Cathay 747 arrived.

| Model | Notes |
|---|---|
| 747-200 | Passenger fleet from 1979 |
| 747-300 | Later classic, stretched upper deck |
| 747-400 | Long-haul passenger from 1989 |
| 747-400F / -400ERF / -8F | Cargo fleet, still in service |

Cathay's cargo arm is today the world's largest 747-8F customer, keeping the Queen of the Skies at the heart of its freighter network.

## Delta Air Lines

*URL: https://www.boeing-747.com/airlines/delta-air-lines.html*

Delta flew 747s in two eras: five -100s from 1970 to 1977 that it judged too large for its network, and 747-400s inherited from Northwest that made it the last US airline to retire the type, in 2017.

Delta's relationship with the 747 came in two parts, separated by three decades,
and the first part was a false start.

### Too big, too soon

Delta took five [747-100s](/boeing_747_family/747-100.php) from September 1970,
entering service in October on Atlanta - Dallas - Los Angeles. The aircraft - *Georgia
Belle* and sisters - also flew to Chicago, Detroit, Miami and on a Pan Am
interchange to London. But Delta's route system at the time was not dense enough
to fill a jumbo, and the airline traded them back to Boeing from 1974. The last
left in **April 1977**, after which Delta's only widebody was the L-1011 for
years.

Two of those airframes had notable afterlives: one became the **Evergreen
Supertanker**, and another was mounted on the roof of the Evergreen Aviation
Museum in Oregon.

### Northwest brings the 747 back

Delta's return to the type came through its **2008 merger with Northwest
Airlines**, which brought sixteen 747-400s (and, historically, Northwest's 747-200s
and freighters). Delta refurbished the -400s and flew them with Delta One,
Comfort+ and Main Cabin, putting the business cabin in the prominent place the
type allowed.

### The last American 747

Delta retired its 747-400s in **December 2017**, the **last US airline to do so**,
with final charter flying into early 2018. The airline's Flight Museum preserves
**Ship 6301**, the first 747-400 ever built - a fitting bookend for an airline that
was an early customer, a reluctant operator, and, at the end, the type's last
American home.

### Related

- [Airlines that flew the 747](/airlines/)
- [Northwest Airlines 747 fleet history](/airlines/northwest-airlines.html)
- [The 747-400](/boeing_747_family/747-400.php) · [Air Canada 747 fleet history](/airlines/air-canada.html)

## El Al Boeing 747 fleet history

*URL: https://www.boeing-747.com/airlines/el-al.html*

El Al operated 26 Boeing 747s - five -100s, twelve -200s, one -300 and eight -400s - famous for nonstop Tel Aviv - New York flights, and retired its last passenger 747 in November 2019.

El Al was one of the earliest 747 operators in the Middle East. Its 747s became famous for direct Tel Aviv - New York flights made possible by Israel's neighbours closing airspace.

El Al's 747 fleet totalled **26 aircraft**: 5 × 747-100, 12 × 747-200, 1 × 747-300 and 8 × 747-400. The early -100Bs and -200Bs flew long nonstop sectors with reduced payloads.

| Model | Notes |
|---|---|
| 747-100 (5) | Early fleet |
| 747-200 (12) | Main workhorse |
| 747-300 (1) | Stretched upper deck |
| 747-400 (8) | Final passenger generation, from 1994 |

El Al retired its remaining passenger 747s in **November 2019**, ending passenger 747 operations after nearly half a century.

## Iberia

*URL: https://www.boeing-747.com/airlines/iberia.html*

Iberia operated roughly 22 Boeing 747s - -100s, -200s, -300s and two -400s - between 1970 and 2006, using them on its Madrid-based transatlantic and Latin American network.

Iberia was one of the earliest 747 operators in Europe, taking its first aircraft
in **October 1970** - barely nine months after the type entered service. It flew
the [747](/boeing_747_family/747-100.php) for **36 years**, retiring its last
example in 2006.

### A fleet of all four classics

The airline operated roughly **22 jumbos** across every classic variant: a handful
of [747-100s](/boeing_747_family/747-100.php), the bulk as
[747-200s](/boeing_747_family/747-200.php) including a Combi, four leased
[747-300s](/boeing_747_family/747-300.php), and finally two leased
[747-400s](/boeing_747_family/747-400.php). Only about eight of the 22 were ever
owned outright; the rest were leased, many from Air Atlanta Icelandic, which is a
reminder of how the 747 could be brought into a fleet without the capital cost of
buying one.

The 747s served Madrid's transatlantic and Latin American routes - New York,
Buenos Aires, Miami and Mexico City among them - the long, thin sectors where a
large aircraft with a big premium cabin made sense.

### Named after writers

Every Iberia 747 carried the name of a Spanish literary figure, a convention the
airline applied across the type. The first was *Cervantes*. It was an Iberia 747
that carried Picasso's **Guernica** back to Spain from New York in 1981, a
homecoming for the painting after decades abroad.

### The end

The last two Iberia 747s, both leased -400s, left the fleet around **July 2006**.
Iberia replaced them with the Airbus A340 and A330 on the same routes. No Iberia
747 was lost in an accident, and none was preserved.

### Related

- [Airlines that flew the 747](/airlines/)
- [The 747-200](/boeing_747_family/747-200.php) · [The 747-300](/boeing_747_family/747-300.php)
- [Air France 747 fleet history](/airlines/air-france.html)

## Iran Air

*URL: https://www.boeing-747.com/airlines/iran-air.html*

Iran Air operated more than twenty Boeing 747s across the -100, -200, 747SP and a leased -400 between 1974 and 2018, its sanctions-extended SPs flying the world's last commercial 747SP passenger services.

Iran Air is a case study in how long a 747 can serve when it cannot be replaced.
Sanctions kept the airline's classics flying decades past the point at which
other operators had retired theirs, and the result was a fleet that outlasted the
type almost everywhere else.

### The 747SP and the Tehran nonstop

Iran Air was an **early customer of the [747SP](/boeing_747_family/747-100sp.php)**,
the shortened, long-range variant built to fly routes no other airliner could
reach. For the airline that meant a **nonstop Tehran - New York** service, which the
SP flew in a little over twelve hours - a scheduled long-distance record at the
time, and the reason the airline was prepared to trade passenger capacity for
range.

### A mixed classic fleet

The airline operated **747-100Bs**, 747-200 freighters and Combis, and the SPs,
using the classics heavily on **Hajj charters** as well as scheduled routes.
Because new aircraft were unavailable, the fleet was kept alive with careful
maintenance and cannibalisation. One aircraft, **EP-IAM**, retired in January
2014, was the **last passenger 747-100 still flying anywhere**.

### The last passenger 747SP

The 747SP's long goodbye was Iran Air's. **EP-IAC** flew the world's final
commercial 747SP passenger services, to Beijing, Mumbai and Kuala Lumpur, before
retirement in 2016 and a last repositioning flight in **May 2018**. The airline's
four SPs were subsequently scrapped at Tehran Mehrabad.

Iran Air also briefly leased a [747-400](/boeing_747_family/747-400.php) for Hajj
flights in 2017 - the newest 747 the airline ever flew, decades after the type's
classic era.

### Related

- [Airlines that flew the 747](/airlines/)
- [The 747SP](/boeing_747_family/747-100sp.php) · [The 747-100](/boeing_747_family/747-100.php)
- [Saudia 747 fleet history](/airlines/saudia.html)

## Japan Airlines

*URL: https://www.boeing-747.com/airlines/japan-airlines.html*

JAL took 108 Boeing 747s, more than any other airline, including variants built specifically for Japanese domestic routes. It retired the type in 2011.

**Japan Airlines operated more 747s than any airline in history.**

### The fleet

**108 delivered** - the highest total of any customer. Some accounts give 112, which counts second-hand aircraft acquired later; 108 is the delivery figure and the one used across [this site](/airlines/).

The [747-400](/boeing_747_family/747-400.php) was the largest component at **44 aircraft**: 34 standard, 2 freighters and **8 [747-400Ds](/boeing_747_family/747-400d.php)**.

### Boeing built variants for them

This is what makes JAL unusual. It was not simply a large customer - it was a customer Boeing **designed aircraft for**.

JAL was launch customer for the **[747SR](/boeing_747_family/747-100sr.php)**, a short-range, high-density 747 with reduced fuel capacity and reinforced structure, built because Japanese trunk routes were short, extremely busy and flown many times a day. Cycles, not hours, were the constraint.

That idea ran through three generations:

| Variant | For |
|---|---|
| [747-100SR](/boeing_747_family/747-100sr.php) | 1973 onward; up to 550 seats |
| [747-300SR](/boeing_747_family/747-300sr.php) | 600-plus seats |
| [747-400D](/boeing_747_family/747-400d.php) | Up to 660; **winglets deleted** |

The -400D's missing winglets are the clearest illustration: on a one-hour sector they never repay the weight they add, so Boeing left them off.

JAL configured some aircraft for as many as **624 passengers**.

### The stretched upper deck started here

Two JAL **747-100B/SR** aircraft were the first delivered with the **stretched upper deck** - the modification that became standard on the [747-300](/boeing_747_family/747-300.php) and every 747 afterwards.

The most recognisable change in the aircraft's history began as a way of fitting more people onto Japanese domestic flights.

### The end

JAL retired its last 747-400s in **2011**.

The fleet's history also includes [Japan Air Lines 123](/accidents_with_boeing_747s/jal-123.html) in 1985 - a 747SR, and the deadliest accident involving a single aircraft in history.

### Related

- [Airlines that flew the 747](/airlines/)
- [The 747-100SR](/boeing_747_family/747-100sr.php)
- [The 747-400D](/boeing_747_family/747-400d.php)

## Kalitta Air Boeing 747 fleet history

*URL: https://www.boeing-747.com/airlines/kalitta-air.html*

Kalitta Air began 747 freighter operations in November 2000 and currently operates 22 Boeing 747-400 series freighters, having flown 58 747s across all classic generations.

Kalitta Air, the freighter arm of the family business begun by racers Connie and Bob Kalitta, has specialised in 747 cargo since 2000.

Kalitta Air began operations in **November 2000 with three 747s** and has since flown **58 747s** across the -100, -200, -300 and -400 generations.

Today its fleet is **22 Boeing 747-400 series freighters**: 13 × 747-400F, 8 × 747-400BCF and 1 × 747-400ERF. The last 747-200F was retired in April 2017.

| Model | Notes |
|---|---|
| 747-100 / -100SF | Early chartered freighters |
| 747-200F | Classic mainstay until 2017 |
| 747-300 | Briefly operated |
| 747-400F / -400BCF / -400ERF | Current fleet of 22 |

Kalitta operates worldwide cargo charters and ACMI services for freight forwarders and airfreight integrators.

## KLM Boeing 747 fleet history

*URL: https://www.boeing-747.com/airlines/klm.html*

KLM flew 52 passenger 747s from 1971 to 2021, became the first airline to order a CF6-powered 747, and still operates 747-400 freighter versions.

KLM was a pioneer of the 747 in Europe and the most dedicated buyer of the 747-400M Combi. Its 52 passenger 747s flew from 1971 to 2021, after which the passenger fleet retired but cargo versions remained in service.

KLM took its first 747-206B in 1971 and ordered the 747-200M Combi so it could carry cargo on the main deck behind the passenger cabin, a configuration it favoured more than any other airline.

In October **1975** KLM ordered the **first CF6-powered 747** - a 747-200M Combi fitted with General Electric engines - breaking the JT9D monopoly that had existed since the first 747 deliveries.

| Model | Notes |
|---|---|
| 747-206B | Passenger workhorse, delivered from 1971 |
| 747-206B/M and SUD | Standard-upper-deck and stretched-upper-deck Combis |
| 747-300M | Stretched upper deck Combi |
| 747-400 and 747-400M | Passenger and Combi versions from 1989 |
| 747-400ERF / 747-400BCF | Freighter versions still flying |

KLM retired its last passenger 747 in the pandemic and today keeps 747-400 freighter versions for cargo flying. The preserved **PH-BUK "Louis Blériot"** (a 747-206B) is on display at the Aviodrome museum in the Netherlands.

## Korean Air

*URL: https://www.boeing-747.com/airlines/korean-air.html*

Korean Air took 79 Boeing 747s, received the final passenger 747-8 in July 2017, and still flies both passenger and freighter versions.

Korean Air took **79 Boeing 747s**, and holds a distinction no other airline can: it received **the last passenger 747 ever built**.

### The final 747-8I

The **final [747-8 Intercontinental](/boeing_747_family/747-8i.php) was delivered to Korean Air on 7 July 2017**, ending passenger 747 production after 48 aircraft. Freighter production carried on for another five and a half years, until [the last of all 747s went to Atlas Air in January 2023](/airlines/atlas-air.html).

### Still flying

Korean Air remains one of four airlines operating scheduled passenger 747 services, with **four 747-8Is**, alongside **seven [747-8 Freighters](/boeing_747_family/747-8f.php)** in its cargo division.

That combination - passenger and freighter 747-8s in the same group - is now rare.

### The safety record, and what changed

Korean Air's 747 history includes three of the accidents documented on this site:

- [Korean Air Lines 007](/accidents_with_boeing_747s/korean-air-007.html), shot down in 1983 after an autopilot mode error - **the accident that led to GPS being opened to civilian use**
- [Korean Air 801](/accidents_with_boeing_747s/korean-air-801.html) at Guam in 1997
- [Korean Air Cargo 8509](/accidents_with_boeing_747s/korean-air-8509.html) at Stansted in 1999

The last two produced the same finding twice: a steep authority gradient on the flight deck meant junior crew who knew something was wrong did not stop it. The AAIB's recommendations after 8509 went specifically to adapting crew resource management training so it worked within Korean cultural norms rather than against them.

Korean Air subsequently undertook a safety overhaul that is now a widely cited case study, and its record since is entirely different. It is worth stating plainly: the airline's modern safety performance bears no resemblance to that period.

### Related

- [Airlines that flew the 747](/airlines/)
- [The 747-8 Intercontinental](/boeing_747_family/747-8i.php)
- [747 accidents](/accidents_with_boeing_747s/)

## Lufthansa

*URL: https://www.boeing-747.com/airlines/lufthansa.html*

Lufthansa took 81 Boeing 747s, launched the 747-8 Intercontinental in 2006, and is the largest passenger 747 operator left.

Lufthansa took **81 Boeing 747s**, and is the reason the last passenger version exists at all.

### The 747-8 launch customer

Lufthansa launched the **[747-8 Intercontinental](/boeing_747_family/747-8i.php) on 6 December 2006** and was for a long time its **only airline customer**. Boeing publicly reassessed the entire programme in early 2009 because of it, with chief executive Jim McNerney saying continuation was not a foregone conclusion.

The programme continued, and Lufthansa took **19 of the 48 ever built** - by far the largest fleet.

Its influence shows in the aircraft. The [747-8's sweeping staircase](/interiors/the-staircase.html) was originally to be on the right-hand side and was **moved back to the left after Lufthansa's order**.

### Still flying

The confirmed passenger 747 operators are Lufthansa, Korean Air, Air China and Rossiya Airlines. Lufthansa has the largest fleet in the [dated operator disclosures](/active-boeing-747-fleet.html).

In **December 2025** it announced it would [sell two 747-8s and retire two more 747-400s](/blog/lufthansa-sells-two-747-8s.html). The -400s leave by 2027; the **-8s are expected to remain core to long-haul into the 2030s**.

If you want to fly on a 747 with a first class cabin, Lufthansa is where you can still book one. That will not be true forever, but it is true now.

### Related

- [Airlines that flew the 747](/airlines/)
- [The 747-8 Intercontinental](/boeing_747_family/747-8i.php)
- [Lufthansa 747-8 seat maps](/seating_layouts_on_boeing_747/lufthansa-747-8.html)

## National Airlines

*URL: https://www.boeing-747.com/airlines/national-airlines.html*

National Airlines operated only two Boeing 747-100s between 1970 and 1976, the first jumbos to serve Miami, flying the Sun King-liveried jets on Miami - New York, Miami - Los Angeles and Miami - London routes.

Not every 747 operator was a global giant. National Airlines was a Florida
carrier that bought the [747](/boeing_747_family/747-100.php) to serve one
overwhelmingly strong market, and bought exactly as many as that market needed.

### Two aircraft, one purpose

National ordered two **747-135s** - the largest aircraft the airline ever
operated, and the **first 747s to serve Miami**. They entered service in October
1970 on the dense **Miami - New York JFK** and **Miami - Los Angeles** nonstops, in
the airline's famous "Sun King" livery. From the summer of 1972 they also flew
**Miami - London Heathrow**, on which National was one of only four US carriers
then permitted to serve Europe.

### A short life

The airline sold both 747s to **Northwest Orient in May 1976**; they were more
aircraft than National's network could keep full outside the Florida trunk
routes. National itself was absorbed by Pan Am in January 1980, and the 747s that
had been its flagships continued on for another operator. Neither National hull
was lost, and neither survives.

National is a useful footnote to 747 history: it shows how the type could be
justified by a single high-density city pair, even by an airline that could never
support a large fleet.

### Related

- [Airlines that flew the 747](/airlines/)
- [The 747-100](/boeing_747_family/747-100.php)
- [Northwest Airlines 747 fleet history](/airlines/northwest-airlines.html)

## Northwest Airlines Boeing 747 fleet history

*URL: https://www.boeing-747.com/airlines/northwest-airlines.html*

Northwest Airlines was the launch customer for the PW4000-powered 747-400 in 1989, flying ten 747-100s, nineteen 747-200Bs, eight 747-200Fs and sixteen 747-400s.

Northwest Airlines, based in Minneapolis and Detroit, ordered ten 747-100s, nineteen 747-200Bs, eight 747-200Fs and sixteen 747-400s - one of the largest US 747 operators.

Northwest put its first 747-100s on Pacific routes, where long over-water sectors favoured the big jet, and later flew the 747-200B and the 747-200F freighter.

Northwest was the **launch customer for the Pratt & Whitney PW4000 on the 747-400**, ordering in December 1985. The first aircraft, N663US, was delivered in January 1989 and entered revenue service on **9 February 1989** between Minneapolis and Phoenix.

Ship 6301 (N661US), the first production 747-400, was also a Northwest aircraft - it flew for Northwest and Delta before becoming the preserved 747 Experience at the **Delta Flight Museum** in Atlanta.

| Model | Notes |
|---|---|
| 747-100 (10) | Initial Pacific operator, from 1970 |
| 747-200B (19) | Passenger workhorse across the Pacific |
| 747-200F (8) | Freighter fleet, later flown by the merged carrier |
| 747-400 (16) | PW4000 launch fleet from 1989 |

The 2008 merger with Delta made Delta the 747-400 operator; the merged airline retired the last ex-Northwest 747-400s in January 2010.

## Pan American World Airways

*URL: https://www.boeing-747.com/airlines/pan-am.html*

Pan Am launched the 747, flew the first commercial service on 22 January 1970, and operated 65 of them before ceasing operations in 1991.

Pan Am did not just buy the 747. It **caused** it.

### The order that started everything

**Juan Trippe** wanted an aircraft roughly twice the size of the 707, and in **April 1966** Pan Am ordered 25 of them. That order launched the programme and committed Boeing to [an aircraft, and a factory to build it in, that nearly destroyed the company](/features/the-boeing-bust.html).

Pan Am took delivery of the **first 747 on 13 December 1969** and flew the **first commercial service on 22 January 1970**, New York to London, with **N736PA**.

### The fleet

**65 aircraft** in total between 1969 and 1991:

| Variant | Number |
|---|---|
| [747-100](/boeing_747_family/747-100.php) | 44 |
| [747-200B](/boeing_747_family/747-200.php) | 10 |
| [747SP](/boeing_747_family/747-100sp.php) | 11 |

At its peak Pan Am operated 34 simultaneously - more than any other airline at the time - 28 passenger aircraft and six freighters.

### The SP was its idea too

Pan Am, together with Iran Air, asked for an aircraft that could fly New York to the Middle East and Tehran to New York nonstop. Nothing then flying could. Boeing's answer was the [747SP](/boeing_747_family/747-100sp.php), with nearly 48 ft cut out of the fuselage so it could carry the fuel instead of the passengers.

Pan Am took **11 of the 45 ever built**, and in May 1976 flew one, *Liberty Bell Express*, [around the world in 46 hours 26 minutes](/features/records-and-firsts.html).

### The end

Pan Am ceased operations in **1991**. Two of its 747s had already been destroyed in events that shaped the industry: [Tenerife in 1977](/accidents_with_boeing_747s/tenerife.html) and [Lockerbie in 1988](/accidents_with_boeing_747s/pan-am-103.html), with [a hijacking at Karachi in 1986](/accidents_with_boeing_747s/pan-am-73.html) between them.

The airline that ordered the 747 into existence outlived its own creation by 21 years; the aircraft outlived the airline by 32.

### Related

- [Airlines that flew the 747](/airlines/)
- [The 747-100](/boeing_747_family/747-100.php)
- [Background - the story of the 747](/background.php)

## Polar Air Cargo Boeing 747 fleet history

*URL: https://www.boeing-747.com/airlines/polar-air-cargo.html*

Polar Air Cargo has operated 44 Boeing 747s since 1994 - from 747-100SFs to 747-8Fs - and today flies two 747-8Fs as an Atlas Air Worldwide subsidiary.

Polar Air Cargo, founded in 1993, built its whole operation around second-hand 747 freighters and remains a 747 operator today as a subsidiary of Atlas Air Worldwide.

Polar began 747 flying in 1994 with **14 747-100SFs**, then absorbed 747-200F/SFs, 747-300SFs and 747-400Fs. Across its history it has operated **44 747s**, all acquired second-hand.

The airline was partly owned by DHL from 2007 to 2025; the joint venture ended in February 2025 and it now runs within the Atlas Air Worldwide group.

| Model | Notes |
|---|---|
| 747-100SF (14) | From 1994 |
| 747-200F/-200SF (12) | Classic freighters |
| 747-300SF (2) | Stretched upper deck |
| 747-400F (6) | Converted 747-400s |
| 747-8F (2) | Current fleet |

Polar continues to operate **two Boeing 747-8F freighters** today alongside Boeing 777 freighters.

## Qantas

*URL: https://www.boeing-747.com/airlines/qantas.html*

Qantas took 57 Boeing 747s, was the only passenger customer for the 747-400ER, and retired the type on 22 July 2020.

Qantas took **57 Boeing 747s**, and its 747 history contains more distinctive moments than fleets three times the size.

### London to Sydney nonstop

In **August 1989** a Qantas [747-400](/boeing_747_family/747-400.php), **VH-OJA**, flew **London to Sydney nonstop** - 9,720 nautical miles in **20 hours 9 minutes**.

The [qualification matters](/features/records-and-firsts.html): it was a delivery flight with no passengers or freight, using specially produced high-density fuel. It demonstrated what the airframe could do stripped bare, not what it did in service.

VH-OJA is preserved at the **HARS Aviation Museum** at Illawarra, and can be visited.

### The only 747-400ER customer

Qantas launched the **[747-400ER](/boeing_747_family/747-400er.php)** on 28 November 2000 and was **the only airline ever to order the passenger version**. Six were built.

They existed for two specific routes - **Melbourne - Los Angeles** and **Sydney - San Francisco** - that a standard 747-400 could not fly with a commercially useful load. The extra capability came from **60,495 US gallons of fuel in a single body tank** in the forward hold, where a standard 747-400 carried no body fuel at all.

Nobody else had that problem, which is why nobody else bought one. The [freighter version](/boeing_747_family/747-400erf.php) sold 40.

### The kangaroo

On **22 July 2020**, **VH-OEJ** left Sydney for Los Angeles as **QF7474**, and the crew **drew a 275 km Qantas kangaroo in the sky** off the New South Wales coast.

On the way out it overflew HARS and **dipped its wings to VH-OJA** - the aircraft that had flown London to Sydney thirty-one years earlier. Takeoff was to *I Still Call Australia Home*.

It remains the most theatrical retirement any airliner has been given.

### Related

- [Airlines that flew the 747](/airlines/)
- [The 747-400ER](/boeing_747_family/747-400er.php)
- [The farewell flights](/features/the-farewell-flights.html)

## Scandinavian Airlines

*URL: https://www.boeing-747.com/airlines/sas.html*

Scandinavian Airlines operated six Boeing 747-200s - three of them Combis - between 1971 and 1988, flying the 'Vikings' to New York, Tokyo and Bangkok and pioneering Combi freight on the North Atlantic.

Scandinavian Airlines was a 747 operator for just seventeen years, but it used
the aircraft in two ways that suited the airline's geography: on long-haul
passenger routes, and as a **Combi** hauling freight alongside passengers.

### The Vikings

SAS took its first two [747-200Bs](/boeing_747_family/747-200.php) in February
1971, naming them in its tradition of Norse figures - *Huge Viking* and *Ivar
Viking*. They flew Copenhagen - New York and a Copenhagen - Tokyo service marketed as
the **Trans-Siberian Express**, using the trans-Siberian route across the Soviet
Union. A third followed in 1981; *Dan Viking* was the **500th 747 built**.

The cabins were configured for comfort rather than density, with around **353
seats** at generous pitch and a first-class lounge on the upper deck.

### The Combis

From 1977 SAS added three **747-283B/SCD Combis**, which carried cargo behind a
bulkhead on the main deck. One flew a freight-centred Copenhagen - Gothenburg -
Bergen - New York routing, used to export Norwegian farmed salmon to the United
States - a small but pointed example of what the Combi could do that a pure
freighter or a pure airliner could not. Passenger 747 services ended in 1985, with
the remaining aircraft running as freighters until the last left in 1987 - 88.

### One hull loss

An SAS Combi, *Magnus Viking*, was lost in 1983 while on lease to Avianca, in the
crash near Madrid known as Avianca Flight 011. It was the only SAS 747 hull loss.

### Related

- [Airlines that flew the 747](/airlines/)
- [The 747-200](/boeing_747_family/747-200b.php) · [The 747-200M Combi](/boeing_747_family/747-200m.php)
- [Swissair 747 fleet history](/airlines/swissair.html)

## Saudia Boeing 747 fleet history

*URL: https://www.boeing-747.com/airlines/saudia.html*

Saudia operated 63 Boeing 747s across its history - five -200s, five -300s, 51 -400s and two 747-8s - as one of the largest 747-400 airline fleets, with cargo 747-400s still flying today.

Saudi Arabian Airlines, now Saudia, was one of the most prolific operators of the 747 in the Middle East, building a fleet of more than half a hundred 747-400s.

Saudia's 747 fleet totalled **63 aircraft**: 5 × 747-200, 5 × 747-300, **51 × 747-400** and 2 × 747-8. About 16 747-400s were in passenger service in 2014.

| Model | Notes |
|---|---|
| 747-200 (5) | Earlier classic fleet |
| 747-300 (5) | Stretched upper deck |
| 747-400 (51) | Passenger and freighter, the bulk of the fleet |
| 747-8 (2) | Rare Saudia examples |

The passenger 747-400s were gradually withdrawn through the 2010s. The 747s operating today are cargo **747-400F, 747-400ERF and 747-400BDSF** freighters, most run through ACMI leasing rather than as mainline Saudia aircraft.

## Singapore Airlines

*URL: https://www.boeing-747.com/airlines/singapore-airlines.html*

Singapore Airlines took 93 Boeing 747s, the third-highest of any carrier, and retired the type in 2012.

Singapore Airlines took **93 Boeing 747s** - the third-highest total of any airline, after [Japan Airlines](/airlines/japan-airlines.html) and [British Airways](/airlines/british-airways.html).

### The customer code

Singapore's aircraft are **747-412s**. The **12** is Boeing's customer code for Singapore Airlines, in the same way **36** identifies British Airways and **30** Lufthansa.

Boeing assigned every customer a two-character code that became part of the model number of each aircraft it bought - and those codes outlive the relationship. An aircraft sold on keeps its original customer's designation for life, which is why second-hand 747s carry designations that have nothing to do with who flies them.

The [seat map on this site](/seating_layouts_on_boeing_747/singapore_airlines_747_seat_layout.php) covers a 747-412 across both decks.

### Megatop

Singapore marketed its [747-400s](/boeing_747_family/747-400.php) as **Megatop**, a reference to the stretched upper deck, and its freighters as **Megatop Freighter**. The branding stuck well enough that enthusiasts still use it.

### The retirement

Singapore retired its passenger 747s in **2012**, replacing them with 777s and, later, A380s - one of the few carriers that genuinely went from the 747 to the A380 rather than to twins.

Its 747 history includes [Singapore Airlines 006](/accidents_with_boeing_747s/singapore-airlines-006.html) at Taipei in 2000, the airline's first fatal accident.

### Related

- [Airlines that flew the 747](/airlines/)
- [The 747-400](/boeing_747_family/747-400.php)
- [747 versus A380](/features/747-vs-a380.html)

## South African Airways Boeing 747 fleet history

*URL: https://www.boeing-747.com/airlines/south-african-airways.html*

South African Airways flew 30 Boeing 747s from December 1971, set a world non-stop distance record with the 747SP in 1976, and retired its last 747-400 in December 2010.

South African Airways flew the 747 across every classic generation, using the range of the 747SP and 747-400 for routes that avoided overflying most of Africa.

SAA's first 747, a **747-244B**, was registered ZS-SAN "Lebombo" and delivered on **6 November 1971**, entering Springbok service in December 1971. It was the first of about **30 747s** the airline operated.

SAA flew six 747SP-44s and set a **world distance record with the 747SP in 1976**; later the 747-400, used from 1991, opened non-stop Johannesburg-to-United States routes.

| Model | Notes |
|---|---|
| 747-200B / -200M | Launch and Combi classics |
| 747SP-44 (6) | Long-range records from 1976 |
| 747-300 (6) | Stretched upper deck |
| 747-400 / -400M (8) | Final generation, Johannesburg to the US |

The 747SPs retired in October 2003 and the last 747-400, ZS-SAZ, was withdrawn in **December 2010**. Two preserved SAA aircraft remain: **ZS-SAN** and the 747SP **ZS-SPC**, both at the South African Airways Museum Society at Rand Airport.

## Swissair

*URL: https://www.boeing-747.com/airlines/swissair.html*

Swissair launched the stretched-upper-deck Boeing 747-300, flying five of them - three as Combis - alongside two 747-200s between 1971 and 2000, retiring the jumbo two years before the airline itself collapsed.

Swissair's place in 747 history rests on a single decision: it was the **launch
customer for the [747-300](/boeing_747_family/747-300.php)**, the variant that
stretched the upper deck from a lounge-sized bubble into a full cabin.

### Two 747-200s first

The airline took two [747-200s](/boeing_747_family/747-200.php) in 1971, named
*Genève* and *Zürich*. They served Swissair's North Atlantic and Far East routes
through the 1970s and were retired in 1984 - before the aircraft that replaced
them had even fully settled in.

### Launch customer for the -300

Swissair ordered the 747-300 on **11 June 1980** and took delivery of the
**prototype airframe in March 1983**. It operated **five 747-357s**: two standard
-300s registered in the United States until 1992, and three **-300M Combis** that
split the main deck between passengers and freight. The enlarged upper deck was
put to premium use, which was the point of the variant - more space on the deck
passengers preferred.

The Combi configuration suited Swissair's mix of high-value passengers and
time-critical cargo on the same long, thin routes.

### The quiet ending

Swissair's last 747 left the fleet in **2000**, two years before the airline's
sudden collapse in 2002. No Swissair 747 was lost in an accident, and the
airline's exit from the type came without fanfare - it had simply bought a
smaller, more efficient successor in the MD-11.

### Related

- [Airlines that flew the 747](/airlines/)
- [The 747-300](/boeing_747_family/747-300.php) · [The 747-300M Combi](/boeing_747_family/747-300m.php)
- [SAS 747 fleet history](/airlines/sas.html)

## Thai Airways Boeing 747 fleet history

*URL: https://www.boeing-747.com/airlines/thai-airways.html*

Thai Airways International operated 26 Boeing 747s - six 747-200s, two 747-300s and eighteen 747-400s - and retired its remaining 747s between 2021 and 2023.

Thai Airways International flew the 747 on European and Australian routes for more than four decades, building its network around the 747-400 before retiring the type completely in the 2020s.

Thai's 747 history spans **26 aircraft**: 6 × 747-200, 2 × 747-300 and 18 × 747-400. Its first 747-400, HS-TGH, was delivered in February 1990.

The 747-400 fleet peaked at about 18 aircraft in service plus converted freighters, and remained the backbone of Thai long-haul services into the 2010s.

| Model | Notes |
|---|---|
| 747-200 (6) | Initial long-haul fleet, from the late 1970s |
| 747-300 (2) | Stretched-upper-deck classic |
| 747-400 (18) | Long-haul backbone from 1990 |

Thai retired its 747s in two waves - 2012 to 2013 and then 2021 to 2023 - and the last 747s left the fleet entirely by 2024.

## TWA Boeing 747 fleet history

*URL: https://www.boeing-747.com/airlines/twa.html*

TWA ordered 15 Boeing 747s, received its first in December 1969 and began revenue 747 service in February 1970, flying the type on US and transatlantic routes.

Trans World Airlines was one of the first two US airlines to order the 747. Its 15-aircraft initial order arrived at the end of 1969, and the fleet flew on TWA routes for nearly three decades.

TWA took delivery of its first 747 on **31 December 1969** and started passenger service on **25 February 1970**. Together with Pan Am, it was the launch customer for the double-deck jet.

TWA operated the 747-100 and later heavier 747-100B and 747-200 models, and built its JFK "Flight Wing One" maintenance base around them.

| Model | Notes |
|---|---|
| 747-100 | Initial fleet, in service from 1970 |
| 747-100B | Heavier, uprated version |
| 747-200B | Later classic, on transatlantic routes |

By the late 1990s the 747s left the fleet during the airline's long restructuring; Trans World Airlines ceased operations in 2001.

## United Airlines

*URL: https://www.boeing-747.com/airlines/united-airlines.html*

United took 68 Boeing 747s and flew the type for 47 years, ending with a San Francisco to Honolulu service on 7 November 2017.

United Airlines took **68 Boeing 747s** and flew the type for **47 years**.

### The last flight

On **7 November 2017**, United operated its final 747 service from **San Francisco to Honolulu** - deliberately re-flying the route its first 747 had operated in **July 1970**.

Cabin crew wore period uniforms, the catering was 1970s-themed, and **tickets sold out in 90 minutes**.

Six weeks later Delta flew the [last scheduled 747 revenue service by any US passenger airline](/features/the-farewell-flights.html). No American airline has carried passengers on a 747 since.

### The irony of the American fleet

US carriers gave up the 747 comparatively early - United in 2017, Delta days later - while American freight operators went the other way entirely.

[Atlas Air](/airlines/atlas-air.html) now has the **largest 747 fleet in the world**, UPS the second largest, and Kalitta, Polar and National all fly them. There are more American 747s working today than there were when United retired its passenger fleet; they simply do not carry people.

### The cabin

United's 747-400 international layout, complete with its lie-flat first class bed, is among the [seat maps on this site](/seating_layouts_on_boeing_747/united_airlines_747_seat_layout.php).

### Related

- [Airlines that flew the 747](/airlines/)
- [The farewell flights](/features/the-farewell-flights.html)
- [United Airlines seat layouts](/seating_layouts_on_boeing_747/united_airlines_747_seat_layout.php)

## UPS Airlines Boeing 747 fleet history

*URL: https://www.boeing-747.com/airlines/ups-airlines.html*

UPS Airlines introduced converted 747-400 freighters from 2007 and the 747-8F from September 2017, becoming the world's largest 747-8F customer with a 30-strong 747 fleet.

UPS Airlines operates one of the largest freighter fleets on Earth, and since the late 2000s the Boeing 747 has been a core part of its long-haul network.

UPS delivered its first **747-400F** in July 2007, using about 13 converted freighter frames (ex-Korean Air and Singapore Airlines aircraft). The type joined the MD-11 on transoceanic routes.

It took its first **747-8F** on **27 September 2017** - N605UP, named "Spirit of Joe Sutter" after the 747's chief engineer. UPS is now the **largest 747-8F customer**, with 28 or more deliveries and a 30-strong 747 fleet overall.

| Model | Notes |
|---|---|
| 747-400F | Converted freighters, from 2007 |
| 747-8F | New-build fleet, from 2017 |

UPS keeps its 747s flying scheduled global cargo feeder routes from its Worldport hub in Louisville, Kentucky.

## Virgin Atlantic Boeing 747 fleet history

*URL: https://www.boeing-747.com/airlines/virgin-atlantic.html*

Virgin Atlantic's first flight on 22 June 1984 was a leased Boeing 747-200, and the airline flew 30 747s for 36 years until its last passenger 747-400 landed in March 2020.

Richard Branson's Virgin Atlantic was born in 1984 with a single leased 747-200, and grew into one of the most identifiably branded 747 operators in the world.

Virgin's first aircraft was G-VIRG "Maiden Voyager", a leased 747-200 that launched scheduled service on **22 June 1984**. Its 747 fleet eventually totalled **30 aircraft**: 1 × 747-100, 14 × 747-200 and 13 × 747-400, of which nine -400s were new builds.

The first 747-400, G-VFAB "Lady Penelope", joined in April 1994 and served until September 2015.

| Model | Notes |
|---|---|
| 747-100 (1) | A single early example |
| 747-200 (14) | The launch "Classics", from 1984 |
| 747-400 (13) | The mature fleet from the 1990s |

The final scheduled 747-400 passenger flight, VS608 from Los Angeles to London Heathrow, departed on **30 March 2020**; the remaining 747-400s were retired during that year. One former Virgin 747, G-VWOW, later flew Virgin Orbit air-launch missions under a different registration rather than as a museum aircraft.

## The story of the Boeing 747

*URL: https://www.boeing-747.com/background.php*

The 747 was the first wide-body airliner, launched on a Pan Am order in 1966, built in a factory that had to be built first, and produced until 2023.

The Boeing 747 was the first wide-body airliner, and for 37 years the largest passenger aircraft in the world. **1,574 were built** between 1968 and 2023.

This page is the short version. Every claim here is covered in more depth elsewhere on the site, and linked as it comes up.

### The bet

By the mid-1960s air travel was growing faster than airports and airways could absorb. The answer, as Pan Am's **Juan Trippe** saw it, was not more flights but bigger aeroplanes - and he wanted one roughly twice the size of the 707.

Boeing agreed to build it. **Pan Am ordered 25 aircraft in April 1966**, and that order launched the programme.

It was an enormous risk for both. Boeing was committing to an aircraft larger than anything in service, on a schedule of about four years, having just lost the competition for a very large military transport that had informed the design thinking. The company had no building big enough to assemble it in.

### The factory came first

Boeing chose a site at **Everett, Washington**, and built the assembly plant and the aircraft more or less simultaneously - clearing forest, laying the largest building in the world by volume, and starting production before it was finished.

The engineering team, led by **Joe Sutter**, took the aircraft from launch to first flight in roughly 28 months. They became known inside the company as **"the Incredibles"**, and the name stuck.

The 747 first flew from Paine Field on **9 February 1969**, and entered service with Pan Am on the New York - London route on **22 January 1970**.

### Why it looks like that

The hump is the most recognisable feature in commercial aviation, and it exists for a reason that had nothing to do with passengers.

Boeing expected supersonic transports to take over long-haul passenger flying within a decade or two. The 747 was therefore designed to have a **second life as a freighter** - which meant a nose that could hinge upward so cargo could be driven straight in along the centreline. Putting the flight deck above the main deck was the only way to leave that nose clear.

The supersonic airliners never arrived in numbers. The freighters very much did, and [747 freighters outlived the passenger versions by decades](/boeing_747_family/747-400f.php). The hump, designed for a future that did not happen, became the shape everyone recognises.

On the earliest aircraft the space behind the flight deck was a **lounge** rather than a cabin - with [piano bars and swivel chairs](/blog/boeing-747-classic-cabin-layouts-video.html) - until fuel prices made every square foot earn its keep.

### How it developed

Each generation is covered in detail in [the 747 family section](/boeing_747_family/); the short version is:

| Generation | Built | The change that mattered |
|---|---|---|
| [747-100](/boeing_747_family/747-100.php) | 168 | The original |
| [747-200](/boeing_747_family/747-200.php) | 393 | Engine choice from all three makers - it outsold the -100 two to one |
| [747-300](/boeing_747_family/747-300.php) | 81 | The stretched upper deck, kept by every 747 afterwards |
| [747-400](/boeing_747_family/747-400.php) | 694 | Winglets, a glass cockpit, and no flight engineer |
| [747-8](/boeing_747_family/747-8.php) | 155 | A longer fuselage and an entirely new wing |

Two variants broke the pattern. The [747SP](/boeing_747_family/747-100sp.php) had nearly 48 feet **removed** so it could fly further than anything else in the sky, and the [747-400D](/boeing_747_family/747-400d.php) was built **without winglets** for Japanese domestic routes, where they would never repay their weight.

Away from the airlines, the type carried [space shuttles, a telescope, fire retardant, other aeroplanes, a laser and several heads of state](/special_boeing_747s/).

### Records and reach

The 747 was the largest passenger aircraft in the world until the **Airbus A380** entered service in 2007.

Its most extraordinary single flight was not a record attempt. In 1991, during **Operation Solomon**, an Israeli 747 carried more people on one aircraft than any flight before or since. Guinness World Records puts it at **1,088, including two babies born on board**; contemporary reports ranged from 1,078 to 1,122. [More on the records](/features/records-and-firsts.html).

In 1989 a Qantas [747-400](/boeing_747_family/747-400.php) flew **London to Sydney nonstop**, 9,720 nautical miles in 20 hours 9 minutes - though it should be said this was a delivery flight with no passengers or freight and specially produced fuel.

### Why it ended

Nothing went wrong with the aircraft. What changed was the economics around it.

Twin-engined aircraft - the 777, then the 787 and A350 - grew capable enough to fly the same long-haul routes on **two engines instead of four**, without needing 400 seats filled to make money. Airlines moved to flying more often, point to point, on smaller aircraft. Four engines became a liability rather than a reassurance.

Passenger 747 production effectively stopped in **2005**. The freighters carried the programme for another eighteen years, because nothing else offered a nose door.

**COVID-19 finished the passenger fleets.** Retirements planned for 2021 and beyond were pulled forward, and in 2020 [British Airways, Qantas, KLM and Virgin Atlantic all retired the type](/airlines/) within months of each other.

The [last 747 was delivered to Atlas Air on 31 January 2023](/blog/final-boeing-747-delivered-to-atlas-air.html), 54 years after the first one flew.

### What is still flying

The confirmed passenger 747 operators are Lufthansa, Korean Air, Air China and Rossiya Airlines; see the [fleet tracker](/active-boeing-747-fleet.html). The freighter fleets are far larger, led by Atlas Air, UPS and Cargolux, and the aircraft delivered in the 2010s and early 2020s have decades of work ahead of them.

Two 747-8s are also being converted into the next [Air Force One](/special_boeing_747s/vc-25b-bridge-qatar-747-8.html). The 747 will be carrying heads of state long after the last airline retires one.

### Read more

- [The 747 family](/boeing_747_family/) - every variant, with production numbers
- [747 development timeline](/747_timeline.php) - first order to last delivery, by date
- [Special Boeing 747s](/special_boeing_747s/) - the aircraft that never flew for an airline
- [Airlines](/airlines/) - who flew it, and when each said goodbye
- [Fun facts from Boeing](/fun_facts_from_boeing.php) - six million parts, and other numbers

## Blog

*URL: https://www.boeing-747.com/blog/*

A blog covering Boeing 747 news, milestones and unusual operations.

Notes on the Boeing 747 as they were written - deliveries, retirements, milestones and oddities, going back to 2009.

These are dated posts kept as a record rather than rewritten. Where the outcome is now known, it is added to the end of the post under an **Update** heading, so the original stands as it was written and the correction is visible. 14 of the 26 posts carry one.

### 2026

**[Air Force One slips again, and the cracks behind it](vc-25b-delays-and-stringer-cracks.html)**
3 August 2026. A Pentagon report on 3 August 2026 found the VC-25B cabin design still behind schedule, with 95 and 142 airframe repairs outstanding on the two aircraft.

**[Qatar 747-8 enters service as Air Force One](qatar-747-8-enters-service-as-air-force-one.html)**
1 July 2026. A Boeing 747-8 gifted by Qatar and converted by L3Harris flew its first presidential mission on 1 July 2026 as the VC-25B Bridge.

**[Cosmic Girl's third career: launching hypersonic vehicles](stratolaunch-747-launches-hypersonic-vehicle.html)**
21 May 2026. The former Cosmic Girl, now N949SL Spirit of Mojave, air-launched a Talon-A3 hypersonic vehicle for the Missile Defense Agency in March 2026.

### 2025

**[Lufthansa to sell two 747-8s and retire more 747-400s](lufthansa-sells-two-747-8s.html)**
16 December 2025. Lufthansa is selling two 747-8s and retiring two more 747-400s, with the -400 leaving the fleet by 2027 and the -8 staying into the 2030s.

**[How many 747s are still flying?](how-many-747s-are-still-flying.html)**
1 October 2025; fully revised 4 September 2026. What current airline disclosures can establish - and why there is no defensible live worldwide total.

### 2023

**[The last Boeing 747 is delivered](final-boeing-747-delivered-to-atlas-air.html)**
31 January 2023. Boeing delivered the final 747, a 747-8 Freighter registered N863GT, to Atlas Air on 31 January 2023 after building 1,574 aircraft over 54 years.

### 2016

**[Qantas straps an extra engine to a Boeing 747 for transport](quantas-straps-an-extra.html)** - *video, updated*
7 January 2016. A Qantas Boeing 747 carried a spare engine mounted under its wing in a fifth pod.

### 2015

**[Virgin Galactic will use a Boeing 747 to launch satellites into space](virgin-galactic-will-use-a.html)** - *video, updated*
6 December 2015. Virgin Galactic adopted a Boeing 747 as the air-launch platform for LauncherOne.

### 2014

**[ANA to retire its last two Boeing 747s](ana-to-retire-its-last-two.html)** - *updated*
17 April 2014. ANA retired its final two passenger Boeing 747s in 2014.

**[Boeing 747 #1 "Queen of the Skies" being rebuilt](boeing-747-1-queen-of-the.html)** - *updated*
17 April 2014. The first Boeing 747 ever built, RA001, was restored for museum display.

**[Boeing 747-8 Freighter Painted in Seattle Seahawks Livery](boeing-747-8-Seahawks.html)** - *updated*
30 January 2014. Boeing painted a 747-8F in Seattle Seahawks livery in 2014.

**[Boeing delivered the first 747-8 with performance-improved GEnx-2B eng](boeing-delivered-the-first.html)** - *updated*
6 January 2014. Cathay Pacific received the first 747-8 with performance-improved GEnx-2B engines.

### 2012

**[Space Shuttle Discovery takes last ride on Shuttle Carrier Aircraft](space-shuttle-discovery.php)** - *updated*
17 April 2012. Discovery's last flight was atop the NASA Shuttle Carrier Aircraft.

### 2011

**[Boeing 747-8F Vomit Comet](boeing-747-8f-vomit-comet.php)** - *video*
17 April 2011. A 747-8F flight test involving parabolic manoeuvres; the original video is unavailable.

### 2010

**[Painting a Boeing 747-400 in 4 minutes](painting-a-boeing-747-400.html)** - *video*
14 December 2010. A time-lapse of a Virgin Atlantic 747-400 being repainted.

**[Boeing 747 Classic Cabin Schemes](boeing-747-classic-cabin-layouts-video.html)** - *video*
25 September 2010. Classic 747 cabin schemes and upper-deck lounges; the original video is unavailable.

**[How much does a Boeing 747 Cost](how-much-does-a-boeing-747-.html)** - *updated*
4 September 2010. Boeing's 2008 list price for the 747-400 was $234.0-266.5 million.

**[How to paint a Boeing 747-8](how-to-paint-a-boeing-747-8.html)** - *video*
2 May 2010. How a Boeing 747-8 is painted; the original embedded video is no longer available.

**[Upgrading a United Airlines 747 Business / First Cabin](upgrading-a-united-airlines-747-cabin.html)** - *video*
2 January 2010. United Airlines refits the premium cabins of a Boeing 747.

### 2009

**[First Boeing 747-8 Freighter Leaves Paint Hangar](first_boeing_747-8_freighter-leaves-paint-hanger2.html)** - *updated*
19 November 2009. The first 747-8F emerged from the paint hangar in a special livery in 2009.

**[Boeing Hangs GEnx-2B Engines on the 747-8 Freighter](boeing_hangs_genx-2b_engine.html)** - *updated*
3 September 2009. GEnx-2B engines were hung on the first Boeing 747-8 Freighter in 2009.

**[First 747-400 heads for scrapyard](first_747-400_heads_for_scr.html)** - *updated*
1 June 2009. Air New Zealand retired its first 747-400 for scrapping in 2009.

**[How much bigger is the Boeing 747-8 ?](how_much_bigger_is_the_boeing_747_8.php)** - *updated*
24 May 2009. The 747-8 is 18.3 ft longer than the 747-400, at 250 ft 2½ in overall.

**[Why does a Boeing 747-400 have winglets](why_does_a_boeing_747-400_have_winglets.php)** - *updated*
23 May 2009. Winglets reduce wingtip vortices and induced drag, lowering fuel burn on the 747-400.

**[Air Force One Buzzing New York](air_force_one_buzzing_over_.html)**
20 May 2009. A 2009 photo opportunity flying Air Force One low over Manhattan caused public panic.

**[First set of wings for the Boeing 747-8F completed](first_set_of_wings_for_boeing_747-8f_completed.html)** - *updated*
6 March 2009. The first 747-8 Freighter wing set was completed in 2009.

### Elsewhere on the site

- [The 747 family, variant by variant](/boeing_747_family/)
- [Special Boeing 747s](/special_boeing_747s/)
- [Features](/features/)
- [Everything about the Boeing 747-8](/everything-about-the-boeing-747-8/)
- [Videos](/videos/)

## Air Force One Buzzing Over New York

*URL: https://www.boeing-747.com/blog/air_force_one_buzzing_over_.html*

A 2009 photo opportunity flying Air Force One low over Manhattan caused public panic.

On **27 April 2009**, one of the two [VC-25A](/special_boeing_747s/boeing_vc25_air_force_one.php) aircraft that serve as Air Force One was flown low over New York Harbour and Manhattan, escorted by two F-16s, to produce a new official photograph of the aircraft with the Statue of Liberty.

The public was not told. Neither, it emerged, were the Mayor of New York or the President.

### What happened on the ground

People in Lower Manhattan saw a 747 in airline-style livery flying low over the city, pursued by fighter jets, less than eight years after 11 September 2001.

Office buildings began evacuating. People ran into the streets. The reaction was immediate and entirely predictable to anybody who had thought about it for a moment - which is the point at which the exercise had gone wrong, long before the aircraft took off.

### The consequences

The flight had been approved by **Louis Caldera**, director of the White House Military Office. He issued a public apology - *"I apologize and take responsibility for any distress that flight caused"* - and resigned less than two weeks later.

The photo shoot was estimated to have cost around **$328,835**.

The photographs were eventually released. They are unremarkable.

### Why the aircraft is unmistakable, and why that mattered

The VC-25A is a [747-200](/boeing_747_family/747-200.php) airframe in a blue and white livery designed in 1962 to be recognisable. That recognisability is normally the point - but at 1,000 feet over Manhattan, what people saw was a very large airliner where no airliner should be, with fighters behind it.

### Related

- [The VC-25A, Air Force One](/special_boeing_747s/boeing_vc25_air_force_one.php)
- [The VC-25B and the Qatari 747-8](/special_boeing_747s/vc-25b-bridge-qatar-747-8.html)
- [Special Boeing 747s](/special_boeing_747s/)

## ANA to retire its last two Boeing 747s

*URL: https://www.boeing-747.com/blog/ana-to-retire-its-last-two.html*

ANA retired its final two passenger Boeing 747s in 2014.

All Nippon Airways will retire its last two passenger-carrying Boeing 747s next month, ending an era in which the American-made jumbo jet was a frequent presence in Japanese skies, working both the international and domestic routes of ANA and Japan Airlines.

In the 1970s, ANA and JAL were early purchasers of the revolutionary airplane, and they remained loyal to it and to Boeing, which even produced a special high-density, 560-seat, short-haul version of the 747 just for them.

Changes in technology and in travel behavior and a demand for more flights on smaller planes, however, have caused a global shift. For JAL, that has ended 50 years of loyalty to Boeing products.


[More here...](https://www.nytimes.com/2014/02/12/business/international/bidding-farewell-to-the-747.html)

(Source NYTimes)

### Update

ANA retired its last passenger 747 on schedule. The final aircraft, **JA8961, flew for the last time on 31 March 2014** after 24 years and more than **33,000 flight cycles**.

That cycle count is the real story of Japan's 747s. A long-haul 747 of the same age might have accumulated a few thousand cycles; these aircraft did the work of short-haul jets at 747 scale, which is why Boeing built them a variant of their own.

The "special high-density, short-haul version" referred to above is the [747-400D](/boeing_747_family/747-400d.php) - a 747 built **without winglets**, because on a one-hour sector they never repay the weight they add. Nineteen were built. It was the third generation of the idea, after the [747-100SR](/boeing_747_family/747-100sr.php) of 1973 and the [747-300SR](/boeing_747_family/747-300sr.php).

Japan Airlines had retired its own 747s in 2011. Between them, the two Japanese carriers had operated the most intensively used jumbo jets ever flown.

## Boeing Hangs GEnx-2B Engines on the 747-8 Freighter

*URL: https://www.boeing-747.com/blog/boeing_hangs_genx-2b_engine.html*

GEnx-2B engines were hung on the first Boeing 747-8 Freighter in 2009.

Boeing said today that they have installed the GEnx-2B engines off the 747-8F. This airplanes is moving through it's assembly and testing activities pretty fast. In fact the GEnx will most likely fly on the 747-8 before it flies on the 787 which is the airplane it was meant for (forget about the engines that are flying on the GE 747 test bed).

EVERETT, Wash., Sept. 2 /PRNewswire-FirstCall/ -- Boeing (NYSE: BA) continues to make progress on the assembly of the 747-8 Freighter, as mechanics completed the installation of the new GEnx-2B engines on airplane No. 1 in final assembly at the factory in Everett, Wash.

"We are another step closer to bringing the 747-8 Freighter to market," said Mo Yahyavi, vice president and general manager of the 747 program. "This production milestone is a reflection of the strong working together relationship among Boeing, GE Aviation, Middle River Aircraft Systems and Spirit AeroSystems."

The GEnx-2B continues its progress through its engine certification testing. It recently completed the first phase of flight testing on GE's 747 flying testbed.

"The GEnx-2B engine has performed very well during more than 1,500 hours of ground certification tests and 100 hours of flight testing," said Tom Brisken, general manager of GE Aviation's GEnx program. "We look forward to watching the GEnx-powered 747-8 Freighter take its first flight, ushering in a new era of improved aircraft efficiency."

The GEnx-2B is based on the GEnx-1B engine launched with the 787 Dreamliner. The GEnx-2B engine has been designed for the 747-8 and rated at 66,500 pounds of thrust.

"The 747-8 and the GEnx-2B are a perfect match," said Keith Leverkuhn, vice president and general manager of Boeing Commercial Airplanes Propulsion Systems. "The combination of these two technologies will provide our customers with improved fuel efficiency and reduced emissions and noise as well as lower cost of ownership."

With the GEnx-2B engines, the 747-8 Freighter will be 17 percent more fuel efficient than the 747-400 Freighter, resulting in a 17-percent reduction in carbon emissions. It also will have a noise footprint that is 30 percent smaller than its predecessor, making it a QC2-compliant airplane on both departure and arrival.

The 747-8 Freighter is expected to make its first flight in the fourth quarter of this year, with first delivery scheduled for the third quarter of 2010. Boeing has secured 78 orders from leading cargo operators for the new 747-8 Freighter. Cargolux, Nippon Cargo Airlines, AirBridgeCargo Airlines, Atlas Air, Cathay Pacific, Dubai Aerospace Enterprise, Emirates SkyCargo, Guggenheim and Korean Air all have placed firm orders for the airplane.

### Update

The GEnx-2B was the only engine ever offered on the [747-8](/boeing_747_family/747-8.php). An exclusivity agreement between GE and Boeing meant no other manufacturer's engine could be fitted for at least ten years.

That was a significant break with 747 history. Every earlier generation could be bought with engines from more than one maker, and that choice mattered commercially - the [747-200](/boeing_747_family/747-200.php) was the first 747 offered with Pratt & Whitney, General Electric *and* Rolls-Royce, and it outsold the [747-100](/boeing_747_family/747-100.php) by more than two to one partly because airlines could buy a 747 that matched the engines they already maintained.

In service the GEnx-2B burned about **16 percent less fuel per seat** than the engines on the [747-400](/boeing_747_family/747-400.php). Boeing later delivered a [Performance Improvement Package](boeing-delivered-the-first.html) that added a further 1.8 percent.

See also [engines optimised for the 747-8](/everything-about-the-boeing-747-8/engines-optimized-for-the-7.html).

## Boeing 747 #1 "Queen of the Skies" being rebuilt

*URL: https://www.boeing-747.com/blog/boeing-747-1-queen-of-the.html*

The first Boeing 747 ever built, RA001, was restored for museum display.

Forty-five years ago, she made history, ushering in the era of the jumbo jet and changing the face of commercial flight. A giant of the skies, it made our world smaller and mesmerized the people of the Pacific Northwest, us included.

When the 747 dubbed _The City of Everett_ (RA001) took her inaugural flight on February 9, 1969, it was an enormous day for both of us. And just as we are tremendously proud to be a part of the Boeing 747's legacy - as chief engineer and co-pilot on the first flight - we're equally proud to be a part of her renewal at The Museum of Flight.

Since accessioning the first 747, the Museum and its dedicated team have been faithfully caring for the aircraft, but Seattle's damp climate takes a toll, and _The City of Everett_ is showing signs of wear. That's why, this summer, the Museum will embark on an ambitious project - a complete external restoration to return her to first flight conditions.


[More here....](https://www.museumofflight.org/747)

(Source: Museum of Flight)

### Update

The restoration went ahead. The Museum of Flight's board authorised it in 2012, and the work - sanding down the faded paint and applying more than 60 gallons of fresh paint to the exterior - took nearly two years. **RA001 reopened for public tours in 2014.**

A roof was subsequently built over the museum's Aviation Pavilion, so *The City of Everett* and the aircraft alongside it are now under cover, which was the underlying problem the restoration was fighting.

The aircraft is the prototype [747-100](/boeing_747_family/747-100.php), registered N7470. **168 747-100s were built; 167 went to customers and Boeing kept this one.** It first flew on 9 February 1969 from Paine Field.

It outlived the production line. The [last 747 was delivered on 31 January 2023](final-boeing-747-delivered-to-atlas-air.html) - number 1,574 - 54 years after this aircraft first flew.

## Boeing 747-8 Freighter Painted in Seattle Seahawks Livery

*URL: https://www.boeing-747.com/blog/boeing-747-8-Seahawks.html*

Boeing painted a 747-8F in Seattle Seahawks livery in 2014.

Boeing  today revealed a 747-8 Freighter painted in the livery of the NFL's Seattle Seahawks. The livery commemorates the team's National Football Conference Championship and upcoming appearance in Super Bowl XLVIII.

Photo Courtesy: Boeing

**Boeing 747-8 Seahawks Livery Fun Facts**

-   Seattle Seahawks quarterback Russell Wilson's longest pass this season, 80 yards (240 ft.), was almost the same length as a 747-8 fuselage (243.5 ft.)
-   Russell Wilson threw for 3,357 yards (10,071 ft.) this season, similar to the runway takeoff distance for a 747-8 (10,650 ft.)
-   Seattle Seahawks wide receiver Percy Harvin can dash the full length of the 747-8 main deck, 180 ft., in less than seven seconds
-   Seattle Seahawks running back Marshawn Lynch can squat with 16 economy seats (30 lbs. per seat)
-   A 747-8 Freighter can carry 121 million Skittles candies, or 302,400 one lb. bags
-   It would take 144 747-8 passenger airplanes (Intercontinentals) to carry all the Seahawks fans in CenturyLink Field (67,000 seats)
-   The 747-8 can cover the length of a football field in one second at takeoff
-   Seahawks fans' Guinness World Record for crowd noise is approximately 38 times louder than the 747-8 at departure

(Stats courtesy of Boeing Media)

### Update

The aircraft in that livery was a [747-8 Freighter](/boeing_747_family/747-8f.php) - Boeing being headquartered in the Seattle area, where the [747 was built for 54 years](/boeing_747_family/) at Everett.

The Seahawks won Super Bowl XLVIII.

The [last 747 was delivered on 31 January 2023](final-boeing-747-delivered-to-atlas-air.html) and the Everett line closed after 1,574 aircraft.

## Boeing 747-8F Vomit Comet

*URL: https://www.boeing-747.com/blog/boeing-747-8f-vomit-comet.php*

A 747-8F flight test involving parabolic manoeuvres; the original video is unavailable.

**A note on this page.** The original clip used a Flash player that no longer works. It has been replaced with footage of the same event.

A [747-8 Freighter](/boeing_747_family/747-8f.php) flies parabolic manoeuvres during the flight test programme - pushing over into near-weightlessness and back.

### This is a certification test, not a stunt

The nickname comes from NASA's reduced-gravity aircraft, but the reason a manufacturer flies parabolas is specific and unglamorous: **fuel and oil systems have to keep working when gravity stops helping them.**

Under normal flight the fuel in a 747's wing tanks sits on the bottom of the tank, where the pumps are. In a pushover at low or negative g it does not. The aircraft has to demonstrate that:

- fuel keeps feeding all four engines through the manoeuvre and afterwards;
- engine oil and lubrication systems continue to function;
- nothing unports, cavitates or surges in a way that could cause a flameout.

The same test regime covers the other end of the envelope - sustained high-g manoeuvring loads - and sits alongside the [extreme testing](/videos/boeing-747-8-extreme-testin.html) and the [rejected takeoff test](/videos/boeing-747-8-being-put-through-some-tough-tests.html) in the certification programme.

The [747-8's wing was entirely new](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html), with different fuel capacity and a different internal layout to the [747-400](/boeing_747_family/747-400.php)'s, so none of this could be inherited. It all had to be flown again.

### Related

- [Extreme testing of the 747-8](/videos/boeing-747-8-extreme-testin.html)
- [The rejected takeoff test](/videos/boeing-747-8-being-put-through-some-tough-tests.html)
- [The 747-8 Freighter](/boeing_747_family/747-8f.php)

## Boeing 747 Classic Cabin Schemes

*URL: https://www.boeing-747.com/blog/boeing-747-classic-cabin-layouts-video.html*

Classic 747 cabin schemes and upper-deck lounges; the original video is unavailable.

**A note on this page.** The original clip used a player that no longer works. The same film has since been found on YouTube and is embedded above, along with two others on the same subject.

Classic Boeing 747 cabin schemes, from the era when the upper deck was a lounge rather than a cabin.

### The hump was never meant to hold seats

The [747's upper deck exists because of the nose cargo door](/boeing_747_family/747-100.php). Boeing expected supersonic airliners to take over long-haul passenger flying, so the 747 was designed to convert to a freighter - which meant the flight deck had to sit above the main deck to leave the nose clear.

That left a space behind the cockpit with no assigned purpose. On the earliest aircraft it held a **lounge**, reached by a spiral staircase, and airlines competed over what to put in it.

American Airlines fitted a piano bar. Continental had a lounge with swivel chairs. Qantas, Pan Am and others fitted their own variations. The [747-200](/boeing_747_family/747-200.php)'s options list offered a 15-place lounge, eight first class seats plus an 11-place lounge, 16 first class sleeper seats, or 32 - 45 economy seats.

### Why the lounges disappeared

Economics, in two stages.

First, the oil shocks of the 1970s made every square foot of a wide-body cabin something that had to earn its keep. A lounge generates no revenue.

Second, the [747-300](/boeing_747_family/747-300.php) arrived in 1983 with a **stretched upper deck** - 23 ft 4 in longer - and a straight staircase instead of the spiral. Both changes existed to create room for more seats, above and below. Once the space was big enough to be a proper cabin, it became one.

By the [747-400](/boeing_747_family/747-400.php) the upper deck was a premium cabin, and it stayed that way to the end.

### Related

- [747 interiors](/interiors/)
- [Seating layouts on the Boeing 747](/seating_layouts_on_boeing_747/)
- [The 747-100](/boeing_747_family/747-100.php)

## Boeing Delivers First 747-8 with Improved GEnx-2B Engines

*URL: https://www.boeing-747.com/blog/boeing-delivered-the-first.html*

Cathay Pacific received the first 747-8 with performance-improved GEnx-2B engines.

Boeing delivered the first 747-8 with performance-improved GEnx-2B engines as part of the airplane's Performance Improvement Package (PIP.) A Cathay Pacific Airways 747-8 Freighter was the first 747 to deliver with the PIP engines.


The engine is the first of the package's three improvements to enter service. The two other components, Flight Management Computer (FMC) software upgrades and reactivation of the horizontal tank fuel system on the 747-8 Intercontinental, are expected to enter service later this month and in early 2014, respectively.   The new GEnx-2B  engine improves the airplane's efficiency by 1.8 percent.  All three PIP components can be retrofitted on the 747-8. The tail fuel reactivation is applicable only for the 747-8 Intercontinental and the FMC upgrades can also be made to 747-400s.

### Update

The Performance Improvement Package was delivered as described, and it was not the end of the effort - Boeing continued refining the [747-8](/boeing_747_family/747-8.php) through its production life.

The improvements did not change the aircraft's commercial fate. Airlines had already moved to twin-engined aircraft for long-haul passenger flying, and the [Intercontinental](/boeing_747_family/747-8i.php) attracted only 48 orders in total against 107 for the [Freighter](/boeing_747_family/747-8f.php).

Cathay Pacific Cargo, the customer for this first PIP aircraft, was among the largest 747-8F operators. The freighters are the reason the programme ran as long as it did - and the reason the [line stayed open until January 2023](final-boeing-747-delivered-to-atlas-air.html).

## The last Boeing 747 is delivered

*URL: https://www.boeing-747.com/blog/final-boeing-747-delivered-to-atlas-air.html*

Boeing delivered the final 747, a 747-8 Freighter registered N863GT, to Atlas Air on 31 January 2023 after building 1,574 aircraft over 54 years.

Boeing delivered the last 747 it will ever build on 31 January 2023. The aircraft, a 747-8 Freighter registered **N863GT**, went to **Atlas Air**, which operates it for Apex Logistics. It was the last of four 747-8Fs Atlas ordered in January 2021 - an order placed knowing it would close the line.

The final tally is **1,574 aircraft** over a production run of 54 years, all of them assembled at Everett, Washington, in a building that was put up specifically to make them.

### How it ended

The commercial case had been narrowing for years. Twin-engined widebodies - the 777 and 787, and the A350 on the other side - could fly the same long routes on two engines instead of four, at lower fuel and maintenance cost. Airlines stopped ordering the passenger 747 well before Boeing stopped building it: the 747-8 Intercontinental attracted only a handful of customers, and Lufthansa was the only airline to order it in quantity.

Freight kept the line alive at the end. The 747-8F's nose door and main-deck volume still have no direct equivalent, which is why the last aircraft off the line was a freighter rather than an airliner.

### What "the end of the 747" actually means

Production ending is not the same as the aircraft disappearing, and the two get conflated.

Passenger 747s have largely gone from Western airlines. United and Delta both retired theirs in 2017. British Airways, KLM, Qantas and Virgin Atlantic accelerated retirements they had already planned during the 2020 downturn. But **Lufthansa still operates the largest passenger 747 fleet**, a mix of 747-8s and 747-400s, and expects to keep the -8s flying into the 2030s. The confirmed passenger operators are Lufthansa, Korean Air, Air China and Rossiya Airlines; their dated disclosures are in the [fleet tracker](/active-boeing-747-fleet.html).

The freighter fleet is in better health. 747-8Fs and converted 747-400Fs continue to carry a substantial share of the world's outsize air cargo for Atlas Air, UPS, Cargolux and Kalitta, and there is no like-for-like replacement in production.

Specialised 747s continue too. The [Dreamlifter](/special_boeing_747s/747_large_cargo_freighter_l.php) fleet still moves 787 assemblies between Boeing's plants. And two [VC-25B](/special_boeing_747s/boeing_vc25_air_force_one.php) presidential aircraft - built on 747-8 airframes among the last produced - are being converted to replace the VC-25As that have served since 1990.

The 747 will be flying long after the factory that built it moved on.

## First 747-400 heads for scrapyard

*URL: https://www.boeing-747.com/blog/first_747-400_heads_for_scr.html*

Air New Zealand retired its first 747-400 for scrapping in 2009.

Air New Zealand's first Boeing 747-400 will soon make one final flight to a wrecker's yard as further capacity cuts loom in the face of a continued fall in demand for global air travel.

The 19-year-old jumbo, named The Bay of Islands, was grounded and put up for sale after completing Air New Zealand's historic biofuel test flight in December.

### Update

Air New Zealand kept flying [747-400s](/boeing_747_family/747-400.php) for another five years after this post. Its **last 747 revenue service landed at Auckland on 12 September 2014**, arriving from San Francisco, and the airline replaced the type with 777s and 787s.

What happened to this aircraft was not unusual. The 747-400 fleet worldwide was retired from passenger flying far faster than anyone expected in 2009, pushed out by twin-engined aircraft that flew the same routes on half the engines. Many airframes went to scrappers; the soundest were [converted into freighters](/boeing_747_family/747-400bcf.php), which is how a good number of 747-400s are still working today.

*The Bay of Islands* had made Air New Zealand's biofuel test flight in December 2008 shortly before being grounded - an unusually distinguished last assignment for an aircraft on its way out.

## First Boeing 747-8 Freighter Leaves Paint Hangar

*URL: https://www.boeing-747.com/blog/first_boeing_747-8_freighter-leaves-paint-hanger2.html*

The first 747-8F emerged from the paint hangar in a special livery in 2009.

Boeing moved the first 747-8 Freighter out of the paint hangar in Everett, Wash., Tuesday night sporting a special "light" livery.

Painted white with blue accents, the 747-8 Freighter unveiled a new twist on the Boeing Commercial Airplanes livery. It features an oversized "8" on the background of the tail as well as "747-8" on the belly.

The light livery, which saves time and expense compared to the full Boeing livery, will remain on the airplane until the flight-test program is completed. After flight test, it will be refurbished and delivered to a customer.

The first freighter will begin preparing for the necessary tests leading up to first flight in early 2010.

### Update

That aircraft went on to fly. The [747-8 Freighter](/boeing_747_family/747-8f.php) made its first flight on 8 February 2010 - 41 years and a day after the [prototype 747](/boeing_747_family/747-100.php) first flew - and entered service with **Cargolux in October 2011**.

The freighter carried the whole programme. **107 were built against 48 [Intercontinentals](/boeing_747_family/747-8i.php)**, and it was a 747-8F that [closed the production line on 31 January 2023](final-boeing-747-delivered-to-atlas-air.html) when the last of all 1,574 747s was handed to Atlas Air.

## First set of wings for the Boeing 747-8F completed

*URL: https://www.boeing-747.com/blog/first_set_of_wings_for_boeing_747-8f_completed.html*

The first 747-8 Freighter wing set was completed in 2009.

The first set of  wings for the Boeing 747-8F have been completed, said Boeing, as they make progress on the 747-800 freighter and the Intercontinental (passenger version). The 135-foot wings add Boeing's latest aerodynamic technologies, allowing the aircraft to fly farther and more efficiently. The newly advanced airfoil is said to improve overall performance and fuel efficiency.

### Update

Those wings flew. The [747-8 Freighter](/boeing_747_family/747-8f.php) first flew on 8 February 2010 and entered service with Cargolux in October 2011; the [Intercontinental](/boeing_747_family/747-8i.php) followed with Lufthansa in June 2012.

The wing described here was the biggest single engineering change in the aircraft - [an entirely new design](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html) rather than a modified [747-400](/boeing_747_family/747-400.php) wing, with raked wingtips in place of winglets and a manoeuvre load-alleviation system that saved about 1,400 lb of structure.

**155 747-8s were built** - 107 freighters and 48 passenger aircraft. The [last one was delivered to Atlas Air on 31 January 2023](final-boeing-747-delivered-to-atlas-air.html), ending 747 production after 1,574 aircraft.

## How much bigger is the Boeing 747-8 ?

*URL: https://www.boeing-747.com/blog/how_much_bigger_is_the_boeing_747_8.php*

The 747-8 is 18.3 ft longer than the 747-400, at 250 ft 2½ in overall.

The 747-8 will feature a fuselage stretch of 18.3 ft (5.6 m) over the 747-400, bringing the total length to 250 ft 2½ in (76.264 m). The 747-8 will be the world's longest passenger airliner, surpassing the Airbus A340-600 by 3.6 ft (1.1 m). With a maximum take-off weight of 975,000 lb (442,000 kg), the 747-8 is the heaviest aircraft, commercial or military, manufactured in the United States.

### Update

The stretch was built as described: **18 ft 3 in (5.6 m)** longer than the [747-400](/boeing_747_family/747-400.php), reaching 250 ft 2 in (76.25 m) - from a 13 ft 4 in fuselage plug ahead of the wing and a 5 ft plug behind it. The [747-8](/boeing_747_family/747-8.php) was indeed the longest passenger airliner in the world on entry into service.

**One figure here was superseded.** The 975,000 lb quoted above was the early programme design weight. The certified maximum takeoff weight ended up at **987,000 lb (447,700 kg)**, which remains the heaviest of any aircraft built in the United States.

Along with the [747SP](/boeing_747_family/747-100sp.php) - which had nearly 48 ft *removed* - the 747-8 is one of only two 747s whose fuselage length was ever changed.

## How Many Boeing 747s Are Still Flying? A Confirmed Floor

*URL: https://www.boeing-747.com/blog/how-many-747s-are-still-flying.html*

At least 215 Boeing 747s confirmed in service as of 2026-09-04 (4 September 2026). This is a floor from dated fleet disclosures, not a live worldwide census.

**At least 215 Boeing 747s confirmed in service as of 2026-09-04 (4 September 2026).** Use the [active Boeing 747 fleet tracker](/active-boeing-747-fleet.html) for the operator records and methodology.

There is **no authoritative, real-time worldwide count** of Boeing 747s that are actively flying. Aircraft move between service, maintenance and storage, and "active" can mean anything from a scheduled flight that day to a valid registration.

The confirmed floor is **49 passenger aircraft plus 166 cargo and special-cargo aircraft** in dated operator snapshots. It does not estimate the complete global fleet.

### What official sources confirm

Official disclosures reviewed on 2026-09-04 (4 September 2026) identify scheduled passenger 747 fleets at 4 airlines: Lufthansa, Korean Air, Air China and Rossiya Airlines.

| Operator | Variant | Aircraft | Evidence date |
|---|---|---:|---|
| [Lufthansa](https://report.lufthansagroup.com/2025/annual-report/en/combined-management-report/principles-of-the-group/fleet-and-route-network/fleet/) | Boeing 747 all variants | 27 | 2025-12-31 (31 December 2025) |
| [Korean Air](https://www.koreanair.com/contents/footer/terms-and-policies/duty-of-notice/ke-aircraft) | Boeing 747-8I | 4 | 2026-07 (July 2026) |
| [Air China](https://webresource.airchina.com.cn/airchinacms/3/upload/resources/file/10112.pdf) | Boeing 747 all variants | 10 | 2024-12-31 (31 December 2024) |
| [Rossiya Airlines](https://www.rossiya-airlines.ru/about/about_us/fleet/vozdushnye_suda/) | Boeing 747-400 | 8 | Checked 2026-09-04 (4 September 2026) |

The dates are as important as the numbers. Air China's exact count comes from an older annual report, for example, while its current aircraft page confirms that the 747 remains part of the product. None of these snapshots should be described as live telemetry.

Large operator disclosures also confirm substantial cargo fleets:

| Operator | Variant | Aircraft | Evidence date |
|---|---|---:|---|
| [Atlas Air Worldwide](https://www.atlasairworldwide.com/2026/03/charting-a-course-for-collaboration-a-conversation-with-atlas-air-worldwides-graham-perkins/) | Boeing 747-8F | 17 | 2026-03 (March 2026) |
| [Atlas Air Worldwide](https://www.atlasairworldwide.com/2026/03/charting-a-course-for-collaboration-a-conversation-with-atlas-air-worldwides-graham-perkins/) | Boeing 747-400F | 39 | 2026-03 (March 2026) |
| [Atlas Air Worldwide](https://www.atlasairworldwide.com/2026/03/charting-a-course-for-collaboration-a-conversation-with-atlas-air-worldwides-graham-perkins/) | Boeing 747 Large Cargo Freighter | 4 | 2026-03 (March 2026) |
| [UPS Airlines](https://investors.ups.com/_assets/_8efcb5c78bd0c1ea12912c608d7c5feb/ups/db/1175/10991/annual_report/UPS%2B2025%2BAnnual%2BReport%2Band%2B2026%2BProxy%2BStatement.pdf) | Boeing 747-8F | 30 | 2025-12-31 (31 December 2025) |
| [UPS Airlines](https://investors.ups.com/_assets/_8efcb5c78bd0c1ea12912c608d7c5feb/ups/db/1175/10991/annual_report/UPS%2B2025%2BAnnual%2BReport%2Band%2B2026%2BProxy%2BStatement.pdf) | Boeing 747-400F | 11 | 2025-12-31 (31 December 2025) |
| [UPS Airlines](https://investors.ups.com/_assets/_8efcb5c78bd0c1ea12912c608d7c5feb/ups/db/1175/10991/annual_report/UPS%2B2025%2BAnnual%2BReport%2Band%2B2026%2BProxy%2BStatement.pdf) | Boeing 747-400BCF | 2 | 2025-12-31 (31 December 2025) |
| [Cargolux Group](https://www.cargolux.com/fleet-equipment/) | Boeing 747-400 and 747-8F | 30 | Checked 2026-09-04 (4 September 2026) |
| [Kalitta Air](https://www.kalittaair.com/about) | Boeing 747-400F | 22 | Checked 2026-09-04 (4 September 2026) |
| [Korean Air](https://www.koreanair.com/contents/footer/terms-and-policies/duty-of-notice/ke-aircraft) | Boeing 747-8F | 7 | 2026-07 (July 2026) |
| [Korean Air](https://www.koreanair.com/contents/footer/terms-and-policies/duty-of-notice/ke-aircraft) | Boeing 747-400F | 4 | 2026-07 (July 2026) |

These rows are not a complete operator census and provide a confirmed floor rather than a complete worldwide total. Smaller fleets, government aircraft, testbeds, temporarily stored aircraft and operators without a current public count would still be missing.

### Why cargo 747s outnumber passenger aircraft

A passenger 747 is usually retired when its fuel and maintenance costs per seat no longer compete with newer twin-engine aircraft. A freighter is judged differently: its large side door, opening nose and high main deck remain useful for dense and outsized cargo.

That difference explains why 747 production ended with a freighter and why recent 747-8Fs can remain useful long after most passenger examples have retired. It does not, by itself, predict a retirement year for any individual aircraft.

### How to check whether you can still fly on one

Search the airline's own booking engine, open the flight details and look for **747-8**, **74H**, **747-400** or **744**. Check again close to departure because aircraft substitutions happen. A third-party route list can help you search, but it is not a guarantee.

For the full operator table, methodology, source links and downloadable records, use the [active Boeing 747 fleet tracker](/active-boeing-747-fleet.html).

### Related

- [The Boeing 747 in 2026](/news.php)
- [Boeing 747 airlines](/airlines/)
- [Where retired 747s went](/features/where-the-747s-went.html)
- [Preserved Boeing 747s you can visit](/preserved-boeing-747s.html)

## How much does a Boeing 747 Cost

*URL: https://www.boeing-747.com/blog/how-much-does-a-boeing-747-.html*

Boeing's 2008 list price for the 747-400 was $234.0-266.5 million.

Boeing's published list prices in 2008, in millions of US dollars. Airlines
negotiated substantial discounts from these figures.

| Model | List price (US$m) |
|---|---|
| 747-400 / -400ER | 234.0 - 266.5 |
| 747-400 / -400ER Freighter | 238.0 - 268.0 |
| 747-8 | 293.0 - 308.0 |
| 747-8 Freighter | 301.5 - 304.5 |

### Update

**Those prices are historical.** They were Boeing's published list prices in 2008, and they are kept here as a record of what the aircraft was advertised at then.

Two things have changed since.

**Boeing stopped publishing list prices.** The company withdrew its price list because the figures had become meaningless - no airline paid them. Discounts from list were routinely very large, and the published numbers served mainly as a starting point for negotiation.

**The aircraft is no longer for sale.** [Production ended on 31 January 2023](final-boeing-747-delivered-to-atlas-air.html) after 1,574 aircraft. A 747 can now only be bought second-hand, and what it costs depends almost entirely on airframe cycles, engine condition and whether it is a passenger aircraft or a [freighter](/boeing_747_family/747-8f.php) - freighters holding their value far better, because they still have work to do.

For what the aircraft actually cost to develop and build, and how it sold, see [the 747 family](/boeing_747_family/).

## How to paint a Boeing 747-8

*URL: https://www.boeing-747.com/blog/how-to-paint-a-boeing-747-8.html*

How a Boeing 747-8 is painted; the original embedded video is no longer available.

**A note on this page.** The original clip used a player that no longer works. It has been replaced with Lufthansa's own film of a [747-8](/boeing_747_family/747-8.php) being painted - Lufthansa being the launch customer and largest operator of the passenger version.

### Paint is a weight problem

The unintuitive part of painting an airliner is that the paint is heavy enough to matter.

A full livery on a 747 runs to several hundred kilograms once it has cured. That weight is carried on every flight for years, and it costs fuel - which is why airlines take paint schemes seriously as an engineering question rather than only a branding one, and why some carriers leave large areas of the fuselage in bare or clear-coated metal.

It is also why the paint is applied in carefully controlled thicknesses. More paint is not better.

### Why it takes days

The aircraft arrives in green primer. The surface is cleaned and prepared, masked, and then sprayed in stages - base coats first, then each colour of the livery in sequence, with curing time between them. Registration marks, door outlines and the hundreds of small placards and stencils required by regulation go on last.

A full 747 livery is a multi-day job in a dedicated hangar, and the [Everett factory](/boeing_747_family/747-8i.php) has paint hangars sized for it.

### Related

- [A Virgin Atlantic 747-400 repainted in four minutes](painting-a-boeing-747-400.html)
- [The first 747-8 Freighter leaves the paint hangar](first_boeing_747-8_freighter-leaves-paint-hanger2.html)
- [Building a 747-8](/videos/building-a-boeing-747-8.html)

## Lufthansa to sell two 747-8s and retire more 747-400s

*URL: https://www.boeing-747.com/blog/lufthansa-sells-two-747-8s.html*

Lufthansa is selling two 747-8s and retiring two more 747-400s, with the -400 leaving the fleet by 2027 and the -8 staying into the 2030s.

[Lufthansa](/airlines/) - by a wide margin the largest passenger [747](/boeing_747_family/) operator left - is thinning its fleet.

The airline plans to **sell two [747-8s](/boeing_747_family/747-8i.php)**, the first going to an undisclosed buyer in **January 2026**, and to withdraw **two more [747-400s](/boeing_747_family/747-400.php)** from scheduled service.

### The timetable

The 747-400s are on the way out: Lufthansa's fleet plan has them **gone by 2027**, alongside the A340-300, with the A340-600, A330-200 and 767-300 leaving by 2026.

The **747-8 is a different matter**. Lufthansa has been clear that it expects the type to remain **a core part of long-haul operations well into the 2030s**.

That distinction matters. The -400s are 1990s aircraft nearing the end of their economic lives. The -8s were delivered from 2012 onward, and Lufthansa took **19 of the 48 ever built**.

### What is left worldwide

There is no authoritative live worldwide count because aircraft move between service, maintenance and storage. Current first-party disclosures instead provide dated operator snapshots. Those sources confirm four scheduled passenger operators and substantial freighter fleets, but they should not be blended into a falsely precise global total.

The [active Boeing 747 fleet tracker](/active-boeing-747-fleet.html) records the latest official counts located for Lufthansa and the other major passenger and cargo operators.

### Related

- [Airlines that flew the 747](/airlines/) - who still does
- [The 747-8 Intercontinental](/boeing_747_family/747-8i.php)
- [Where the 747s went](/features/where-the-747s-went.html)

## Painting a Boeing 747-400 in 4 minutes

*URL: https://www.boeing-747.com/blog/painting-a-boeing-747-400.html*

A time-lapse of a Virgin Atlantic 747-400 being repainted.

A time-lapse by **Johnson Banks** showing a Virgin Atlantic [Boeing 747-400](/boeing_747_family/747-400.php) being repainted, compressed into four minutes.

The original film is still online at Vimeo: **[Virgin Atlantic plane livery time-lapse movie](https://vimeo.com/13832328)** by [Johnson Banks](https://vimeo.com/user1743578).

### Why aircraft get repainted

Not usually because the airline changed its logo. Paint is a **protective coating** before it is a livery: it shields aluminium from corrosion, ultraviolet light and the constant thermal cycling between a hot ramp and −55 °C at cruise altitude.

Livery paint degrades. It chalks, fades and eventually stops protecting the metal underneath, so aircraft are stripped and repainted on a cycle measured in years - typically alongside a heavy maintenance check, when the aircraft is out of service anyway and the panels are open.

A rebrand simply gets scheduled to coincide with a repaint that was going to happen regardless.

### Related

- [How a Boeing 747-8 is painted](how-to-paint-a-boeing-747-8.html)
- [Upgrading a United 747 cabin](upgrading-a-united-airlines-747-cabin.html)
- [The 747-400](/boeing_747_family/747-400.php)

## Qatar 747-8 enters service as Air Force One

*URL: https://www.boeing-747.com/blog/qatar-747-8-enters-service-as-air-force-one.html*

A Boeing 747-8 gifted by Qatar and converted by L3Harris flew its first presidential mission on 1 July 2026 as the VC-25B Bridge.

The Boeing 747-8 that Qatar gave to the United States flew its first presidential mission on **1 July 2026**, carrying the president to North Dakota. It is the first time an American president has flown aboard an aircraft the government did not buy.

The aircraft was unveiled at Joint Base Andrews on 19 June 2026 after roughly ten months of conversion work by **L3Harris** in Texas. It carries the designation **VC-25B Bridge** - "Bridge" because it is meant to fill the gap until Boeing delivers the two purpose-built VC-25B aircraft it has been converting since 2018, now expected around mid-2028.

Most visibly, it wears a new livery: white over a red cheatline with a gold pinstripe and a dark blue underside, replacing the pale blue and white scheme that Raymond Loewy designed for John F. Kennedy in 1962 and which presidential aircraft have carried ever since.

The airframe started life as a Boeing Business Jet delivered to the Qatar Amiri Flight in 2012 and used by the Qatari ruling family, before being withdrawn from service in 2023. Defense Secretary Pete Hegseth formally accepted it on behalf of the US government on 21 May 2025. Its value was widely reported at around $400 million.

Three things about it remain contested. The **cost** of the conversion has not been published - the Air Force said less than $400 million, while reporting has put the allocated figure near $934 million and some estimates run to $1 billion; the contract is classified. Its **defensive systems** are not thought to match those of the VC-25A, and a former Air Force Secretary estimated that reaching that standard would normally take three to four years. And the **legality** of accepting an aircraft from a foreign government was disputed under the Constitution's Foreign Emoluments Clause, with the administration arguing that the gift went to the government rather than to the president personally.

There is a quieter point buried in all of this. Production of the 747 ended in January 2023, so no new presidential 747 can be built. Every future one - this aircraft and Boeing's pair alike - has to come from an airframe that already exists.

Full details, sources and specifications are on the [VC-25B Bridge reference page](/special_boeing_747s/vc-25b-bridge-qatar-747-8.html).

## Qantas Straps an Extra Engine to a Boeing 747 for Transport

*URL: https://www.boeing-747.com/blog/quantas-straps-an-extra.html*

A Qantas Boeing 747 carried a spare engine mounted under its wing in a fifth pod.

This Qantas Boeing 747 checked some excess baggage for a recent flight - a spare engine strapped to the wing.   The airline had to transport an engine to Johannesburg, South Africa.  The engine was not used during the flight and was only there for the ride.

**_Image courtesy Qantas Airways_**


A behind the scenes look at Qantas as we transport a fifth Rolls Royce engine on a Boeing 747 from Sydney to Perth and on to Johannesburg.

### Update

Carrying a **fifth pod** is a standard, certified capability rather than an improvisation. The 747 was designed from the outset with a hardpoint on the left wing, between the fuselage and the inboard engine, for exactly this: ferrying a spare engine to an aircraft stranded somewhere without one.

The engine is carried inert - no fuel, no oil, and usually with the fan removed and the inlet faired over to cut drag. It cannot be used in flight. The aircraft simply flies with reduced performance and a weight and drag penalty, and the crew work to a modified set of limitations.

The alternative is dismantling an engine and shipping it as freight, which takes far longer at a moment when an aircraft is out of service and losing money by the hour.

With the [747 retired from most passenger fleets](/boeing_747_family/747-400.php) the capability is now rare, and Qantas retired its own 747s in July 2020.

## Space Shuttle Discovery's Final Flight on a Boeing 747

*URL: https://www.boeing-747.com/blog/space-shuttle-discovery.php*

Discovery's last flight was atop the NASA Shuttle Carrier Aircraft.

Space shuttle Discovery's ride to retirement, NASA's modified Boeing 747 Shuttle Carrier Aircraft (SCA).

### Update

This was one of the last flights either [Shuttle Carrier Aircraft](/special_boeing_747s/shuttle_carrier_aircraft.php) ever made. Discovery was delivered to the Smithsonian's Udvar-Hazy Center in April 2012, and with the Shuttle programme over, the two 747s that had ferried orbiters across the United States for three decades had no remaining work.

Both survive on public display:

- **NASA 905**, a former American Airlines [747-100](/boeing_747_family/747-100.php), is at **Space Center Houston**, with a full-size shuttle replica mounted on its back - so the pairing can still be seen as it flew.
- **NASA 911**, a former Japan Air Lines [747-100SR](/boeing_747_family/747-100sr.php), is at the **Joe Davies Heritage Airpark** in Palmdale, California.

That NASA 911 was an SR is a good detail: it began as a high-density domestic airliner built for Japanese trunk routes, with a structure reinforced for far more takeoffs and landings than a normal 747 - and ended up carrying spacecraft.

## Cosmic Girl's third career: launching hypersonic vehicles

*URL: https://www.boeing-747.com/blog/stratolaunch-747-launches-hypersonic-vehicle.html*

The former Cosmic Girl, now N949SL Spirit of Mojave, air-launched a Talon-A3 hypersonic vehicle for the Missile Defense Agency in March 2026.

The [747-400](/boeing_747_family/747-400.php) that began life as a Virgin Atlantic airliner, became Virgin Orbit's **Cosmic Girl** and [launched satellites into orbit from under its wing](/blog/virgin-galactic-will-use-a.html), has started a third career.

Transferred to **Stratolaunch in April 2024** and re-registered **N949SL**, the aircraft was renamed **Spirit of Mojave**. On **6 March 2026** it air-launched a **Talon-A3** hypersonic vehicle under the Missile Defense Agency's Flight Test Experiment Other-04, in what was its first publicly confirmed hypersonic sortie. The flight was disclosed on **21 May 2026**.

### What it is carrying now

The **Talon-A** is an uncrewed, reusable, autonomous hypersonic aircraft capable of around **Mach 5**. It is released from the 747 at altitude, accelerates under its own power, and returns to land - the reusability being the point, since hypersonic test articles have historically been expendable.

Stratolaunch announced in late July that the Talon-A had passed **ten successful flights**.

### Why a 747 again

The same reasons that made it useful to Virgin Orbit, and that make 747s the [engine testbed of choice](/special_boeing_747s/engine-testbeds.html): a hardpoint-capable wing, the payload and range to carry something large a long way, and four engines so that carrying an experimental object under one of them is not a single-point risk.

There is also simple availability. Nobody is building four-engined airliners, and the second-hand market that made this aircraft's second and third careers possible is finite.

### Where it goes next

Stratolaunch is contracted to operate from **White Sands Missile Range**, opening what would be the first overland hypersonic test range in the United States since 1968, and subsequently to Australia under the AUKUS agreement.

An aircraft delivered to Virgin Atlantic in 2001 is now a national test asset. That is a very 747 outcome.

### Related

- [Virgin Galactic will use a 747 to launch satellites](/blog/virgin-galactic-will-use-a.html) - the 2015 post, with what happened next
- [Where the 747s went](/features/where-the-747s-went.html)
- [Special Boeing 747s](/special_boeing_747s/)

## Upgrading a United Airlines 747 Business / First Cabin

*URL: https://www.boeing-747.com/blog/upgrading-a-united-airlines-747-cabin.html*

United Airlines refits the premium cabins of a Boeing 747.

**A note on this page.** The original time-lapse of United's refit used a player that no longer works, and no copy of it has surfaced. The film above shows the same operation on a different airline's 747 - Virgin Atlantic's own record of a cabin refit.

United Airlines refits the Business and First cabins of a [Boeing 747-400](/boeing_747_family/747-400.php) during a heavy maintenance visit.

### Why refits happen during heavy checks

An aircraft in a hangar for a heavy maintenance check is already out of revenue service for weeks - panels off, interior partly stripped, systems opened up for inspection.

That is by far the cheapest moment to change the cabin. Doing it separately would mean grounding the aircraft twice, and grounding a 747 is expensive in a way that has nothing to do with the work being done.

### Why a cabin refit is not simple

Seats are structure. Every seat is attached to floor tracks that carry crash loads, and any new arrangement has to be certified for those loads, for evacuation timing, and for cabin fire performance. Premium seats bring power, lighting and entertainment systems with them, which means wiring.

On a 747 there is an added constraint: the [upper deck](boeing-747-classic-cabin-layouts-video.html) is a separate cabin with its own galley, its own evacuation routes and a floor area that cannot be extended. Refitting it is a distinct exercise from refitting the main deck.

### Related

- [Classic 747 cabin schemes](boeing-747-classic-cabin-layouts-video.html)
- [747 interiors](/interiors/)
- [Seating layouts on the Boeing 747](/seating_layouts_on_boeing_747/)

## Air Force One slips again, and the cracks behind it

*URL: https://www.boeing-747.com/blog/vc-25b-delays-and-stringer-cracks.html*

A Pentagon report on 3 August 2026 found the VC-25B cabin design still behind schedule, with 95 and 142 airframe repairs outstanding on the two aircraft.

A Pentagon report released on **3 August 2026** finds the cabin design for the **[VC-25B](/special_boeing_747s/vc-25b-bridge-qatar-747-8.html)** - the pair of [747-8s](/boeing_747_family/747-8i.php) being converted into the next Air Force One - still behind schedule, held up by unresolved technical and certification issues.

Boeing said in July that it still expects to deliver the **first aircraft in 2028**. It recorded a further **$280 million loss** on the programme in the second quarter, having added production and certification resources to try to protect the schedule.

### The airframe repairs

The detail in the report that will interest anyone following the aircraft rather than the contract is the structural work.

The report notes **stringer cracking** on the airframes, and states that as of **April 2026** there were **95 repairs outstanding on the first aircraft and 142 on the second**.

Stringers are the longitudinal stiffeners running along the inside of the fuselage skin, carrying bending loads and stabilising the skin against buckling. They are routine structure - but they are also structure, and repairing them on an aircraft that must then be certified to carry a head of state is not quick work.

### Why this programme is hard

It is worth being fair about the scale of what is being attempted. A VC-25 is not a 747 with a nicer interior. The [existing VC-25A pair](/special_boeing_747s/boeing_vc25_air_force_one.php) are flying command posts: hardened communications, defensive systems, medical facilities, and the ability to operate independently of ground support for extended periods.

Doing that to two second-hand [747-8s](/boeing_747_family/747-8.php) - originally built for an airline order that fell through - while the type is out of production and the supply chain has moved on, was never going to be straightforward.

### The interim aircraft

This is the context for the [Qatari 747-8 brought into service as an interim Air Force One](/blog/qatar-747-8-enters-service-as-air-force-one.html) earlier this year. The VC-25As date from 1990 and are [747-200](/boeing_747_family/747-200.php) airframes; the replacement is now at least two years out.

### Related

- [The VC-25B and the Qatar 747-8](/special_boeing_747s/vc-25b-bridge-qatar-747-8.html)
- [The VC-25A](/special_boeing_747s/boeing_vc25_air_force_one.php)
- [Government and VIP 747s](/special_boeing_747s/government-and-vip-747s.html)

## Virgin Galactic Chooses a 747 to Launch Satellites

*URL: https://www.boeing-747.com/blog/virgin-galactic-will-use-a.html*

Virgin Galactic adopted a Boeing 747 as the air-launch platform for LauncherOne.

Virgin Galactic introduces the newest addition to its fleet of vehicles as part of a technical update on its LauncherOne small satellite launch service. The 747-400 commercial jet aircraft, previously operated by Virgin Atlantic under the nickname 'Cosmic Girl,' will provide a dedicated launch platform for the LauncherOne orbital vehicle.

LauncherOne works differently from the rockets used by other companies like SpaceX or Blue Origin. Instead of taking off from solid ground, the satellite launcher is released mid-flight, greatly reducing the amount of fuel necessary to get small payloads into orbit. But up until today, Virgin Galactic's plans for LauncherOne always included it being taken to those high altitudes by WhiteKnightTwo, the massive plane that the company plans to one day use to carry its space tourism ship (SpaceShipTwo) into the stratosphere.

### Update

*Cosmic Girl* did the job, and then some.

Operated by **Virgin Orbit** - spun out of Virgin Galactic - the [747-400](/boeing_747_family/747-400.php) carried LauncherOne on a pylon under its left wing and released it at around 35,000 ft.

- **25 May 2020** - first launch attempt; failed to reach orbit.
- **17 January 2021** - first success, delivering 10 CubeSats to low Earth orbit. Air-launch to orbit had been achieved from a 747.
- Four further successful orbital launches followed, through July 2022.
- **9 January 2023** - the final launch failed. It was notable anyway as the first orbital launch attempt from UK soil.

**Virgin Orbit filed for Chapter 11 bankruptcy on 4 April 2023.** *Cosmic Girl* was sold at auction to **Stratolaunch**, renamed **Spirit of Mojave**, and is being converted again - this time as a launch platform for the Talon hypersonic testbed.

So the aircraft is on its third career: Virgin Atlantic airliner, satellite launcher, and now hypersonic testbed carrier. That kind of afterlife is a recurring 747 story - see the [special-mission aircraft](/special_boeing_747s/), almost all of which were converted airliners.

## Why does a Boeing 747-400 have winglets?

*URL: https://www.boeing-747.com/blog/why_does_a_boeing_747-400_have_winglets.php*

Winglets reduce wingtip vortices and induced drag, lowering fuel burn on the 747-400.

In order for an aircraft to gain any lift whatsoever, there must be a difference in pressure between the top and bottom of the wing. Below the wing you have high pressure air, above the wing you have low pressure air. This is how lift is accomplished by the wing. The high pressure air is heavier than the low pressure, so the plane has no choice but to remain aloft. (which is why flying is unbelievably safe)

At the end of the wing, there is a turbulent mixture of the high and low pressure air. This mixing point, roughly at the location of the winglets, causes drag and can cause an aircraft to become inefficient. The winglets assist in eliminating some of this drag, therefore adding range and in some cases, quite a bit of exterior style to an aircraft. (my opinion)

Every aircraft is designed differently, so winglets are efficient only on certain models. Aerodynamic variation in aircraft design can be either helped or hurt by winglets. The particular model in this question, the [747-400](/boeing_747_family/747-400.php), usually comes with them, BUT, some airlines have opted to not have them installed on their new planes ([Boeing 747-400D - Domestic](/boeing_747_family/747-400d.php)).  Japan Airlines did this because they use the new plane for shorter high capacity hauls versus flying across the Pacific.

### Update

There is a good postscript to this, and it is the exception that proves the rule.

The [747-400D](/boeing_747_family/747-400d.php), built for Japanese domestic routes, was delivered **without winglets** - deliberately. On a one-hour sector an aircraft spends most of its time climbing and descending rather than cruising, so the drag saving never repays the weight the winglets add, and removing them lowers the bending loads on a wing that has to survive an extraordinary number of takeoffs and landings.

Nineteen were built, and they are the only 747-400s without them.

The [747-8](/boeing_747_family/747-8.php) then abandoned winglets altogether in favour of **raked wingtips** - an extension swept sharply back rather than turned upward - as part of [an entirely new wing](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html). Same objective, different solution.

## Boeing 747 Family

*URL: https://www.boeing-747.com/boeing_747_family/*

The Boeing 747 family spans five passenger generations and more than twenty sub-variants. Production ended in 2023 after 1,574 aircraft.

The Boeing 747 was built in five passenger generations and more than twenty distinct sub-variants between 1968 and 2023. **1,574 aircraft** were completed before the [last one was delivered to Atlas Air](/blog/final-boeing-747-delivered-to-atlas-air.html) on 31 January 2023.

This page is the map. Each variant below has its own page with the detail.

For reusable counts and methodology, see the [downloadable production dataset](/boeing-747-production-data.html).

### Every variant, by generation

### First generation - the 747-100

| Variant | Built | What it is |
|---|---|---|
| [747-100](747-100.php) | 168 | The original. First flight 9 February 1969, in service with Pan Am January 1970 |
| [747-100B](747-100b.php) | 9 | Strengthened airframe and gear, 750,000 lb MTOW. Iran Air and Saudia only |
| [747-100SR](747-100sr.php) | 29 (all SR) | Short range, high density, reinforced for Japanese domestic cycles |
| [747-100F](747-100F.php) | - | The freighter the hinging nose door was always designed for |
| [747SP](747-100sp.php) | 45 | Nearly 48 ft *shorter*, for range. The only 747 ever shortened |

### Second generation - the 747-200

| Variant | Built | What it is |
|---|---|---|
| [747-200](747-200.php) | 393 total | More thrust, more fuel, and the first 747 offered with all three engine makers |
| [747-200B](747-200b.php) | 233 | The passenger aircraft. About 6,857 nmi fully loaded |
| [747-200M](747-200m.php) | 74 | Combi - passengers forward, freight aft on the same deck |
| [747-200C](747-200c.php) | 13 | Convertible - removable seats, nose cargo door |
| [747-200F](747-200f.html) | 73 | Freighter. 105 tons, in service with Lufthansa from 1972 |

### Third generation - the 747-300

| Variant | Built | What it is |
|---|---|---|
| [747-300](747-300.php) | 81 total | The stretched upper deck arrives, and stays for good |
| 747-300 passenger | 56 | Mach 0.85 cruise, straight staircase, 10 percent more seats |
| [747-300M](747-300m.php) | 21 | Combi with the stretched upper deck |
| [747-300SR](747-300sr.php) | 4 | Japanese domestic, over 600 seats |

### Fourth generation - the 747-400

| Variant | Built | What it is |
|---|---|---|
| [747-400](747-400.php) | 694 total | Winglets, a glass cockpit, and no flight engineer. The most successful 747 |
| 747-400 passenger | 442 | The standard aircraft |
| [747-400M](747-400m-combi.php) | 61 | The last and most numerous Combi |
| [747-400D](747-400d.php) | 19 | Japanese domestic - the 747 built *without* winglets, deliberately |
| [747-400F](747-400f.php) | 126 | Factory freighter on the -200F fuselage |
| [747-400ER](747-400er.php) | 6 | Extended range. Qantas was the only passenger customer |
| [747-400ERF](747-400erf.php) | 40 | The extended-range freighter, which sold far better |
| [747-400BCF](747-400bcf.php) | ~50 conversions | Retired passenger aircraft rebuilt as freighters |
| [747-400C](747-400c.php) | **0** | Does not exist - a common mix-up with the -400M Combi |

### Fifth generation - the 747-8

| Variant | Built | What it is |
|---|---|---|
| [747-8](747-8.php) | 155 total | Stretched 18 ft 3 in, an entirely new wing, GEnx-2B engines |
| [747-8F](747-8f.php) | 107 | The freighter, which carried the programme and closed the line |
| [747-8I](747-8i.php) | 48 | The Intercontinental - the last passenger 747 |

There is a [full reference section on the 747-8](/everything-about-the-boeing-747-8/) covering the wing, the engines, the flight deck and the cabin in detail.

### The ones never built

| Proposal | Fate |
|---|---|
| [747 trijet](747-trijet.html) | Studied against the L-1011 and DC-10. Killed by the wing redesign it needed |
| [747-500X, -600X, -700X](boeing-747-500x-600x-and-700X.html) | Announced at Farnborough 1996. Over $5 billion, and no launch customers |
| [747-400XQLR](747-400xqlr-quiet-long-range.html) | Quiet Long Range. Cancelled, but its ideas became the 747-8 |
| [Yellowstone Y3](Yellowstone_project.php) | Boeing's planned 747 replacement. Never launched |

### The pattern behind the numbers

Read down that table and the same story repeats in each generation.

**The freighter always outlives the airliner.** A passenger 747 is retired when its fuel burn per seat stops competing with a newer twin. A freighter is retired when the airframe runs out of cycles. That is why the [747-8F](747-8f.php) outsold the [Intercontinental](747-8i.php) more than two to one, and why the production line stayed open for a decade after passenger orders dried up.

**Japan drove the odd variants.** The [747-100SR](747-100sr.php), [747-300SR](747-300sr.php) and [747-400D](747-400d.php) exist because Japanese trunk routes needed 500-plus seats over one-hour sectors - the opposite of what the 747 was designed for. The stretched upper deck that defines every modern 747 first appeared on two Japanese SR aircraft.

**Engine choice sold aeroplanes.** The [747-100](747-100.php) was a Pratt & Whitney aircraft. The [747-200](747-200.php) could be had with three manufacturers' engines and sold more than twice as many. The [747-8](747-8.php) was offered with exactly one engine, and sold 155.

**The third crew member decided the -300's fate.** The [747-300](747-300.php) was the last three-crew 747, and Boeing launched the two-crew [747-400](747-400.php) just two years after it entered service. 81 -300s were built; 694 -400s followed.

### How it ended

Boeing's own long-term plan, the [Yellowstone Project](Yellowstone_project.php), had the 747's successor as a **300- to 400-seat aircraft** - smaller, with two engines. That aircraft, Y3, was never launched; the 777X took its place.

Meanwhile the routes the 747 had held moved to the 777, the 787 and the A350. Airbus's A380 bet the other way and ended production in 2021. The 747 followed in 2023.

The freighters, though, are young. 747-8Fs delivered into the early 2020s have decades of work ahead of them, which means the 747 will be flying well into the 2040s.

### Elsewhere on the site

- [Special Boeing 747s](/special_boeing_747s/) - Air Force One, the Dreamlifter, SOFIA, the Shuttle Carrier and the Airborne Laser
- [Everything about the Boeing 747-8](/everything-about-the-boeing-747-8/) - the final generation in detail
- [The 747 timeline](/747_timeline.php) - the whole story by date
- [Photo album](/photo_album/) - the aircraft in pictures

## 747-100

*URL: https://www.boeing-747.com/boeing_747_family/747-100.php*

The 747-100 was the first production Boeing 747, delivered from 1969 and distinguished by its short upper deck.

The 747-100 is the aircraft that started everything: the first wide-body airliner, the first to carry more than 400 passengers, and the machine that made long-haul flying affordable for people who had never expected to fly at all.

It first flew from Paine Field, Everett, on 9 February 1969, and entered service with Pan Am on the New York - London route on 22 January 1970. A total of **168 were built**, of which 167 went to customers; Boeing kept the prototype, *City of Everett*, which survives at the Museum of Flight in Seattle.

### Why the hump is there

The upper deck is the most recognisable thing about the 747, and it exists for a reason that had nothing to do with passengers.

Boeing expected supersonic transports to take over long-haul passenger flying within a decade or two. The 747 was therefore designed to have a useful second life as a freighter - which meant a nose that could hinge upward to load cargo straight down the fuselage. Putting the flight deck above the main deck was the only way to leave that nose clear.

The supersonic airliners never arrived in numbers. The freighter design did, and 747 freighters outlived the passenger versions by decades. The hump, designed for a future that did not happen, became the most famous shape in commercial aviation.

### What it could do

| | |
|---|---|
| Typical capacity | 366 in three classes, up to 480 single class |
| Engines | Four Pratt & Whitney JT9D |
| Length | 231 ft 10 in (70.66 m) |
| Wingspan | 195 ft 8 in (59.64 m) |
| Range | About 4,600 nmi (8,500 km) |
| Built | 168 |

The original JT9D was the 747's weak point rather than its wing. It was the first high-bypass turbofan on a commercial airliner and it was rushed; early engines suffered ovalisation of the casing and Pan Am's first aircraft spent time parked awaiting engines. Later JT9D models, and the General Electric CF6 and Rolls-Royce RB211 alternatives offered from the -200 onwards, resolved it.

### The variants that came from it

- The [747-100B](747-100b.php) added a strengthened airframe and a higher takeoff weight. Nine were built.
- The [747-100SR](747-100sr.php) went the other way - less fuel, more seats, and a structure reinforced for far more takeoffs and landings, for Japanese domestic routes.
- The [747-100F](747-100F.php) was the freighter the nose door had always been intended for.
- The [747SP](747-100sp.php) cut nearly 48 ft out of the fuselage to fly further than anything else in the sky.

### Where they went

Almost none survive in service. The type was retired from passenger flying decades ago, and most airframes were scrapped as fuel prices made four thirsty first-generation engines impossible to justify. A handful became testbeds, and two became [Shuttle Carrier Aircraft](/special_boeing_747s/shuttle_carrier_aircraft.php) for NASA - one of them an ex-American Airlines 747-100.

The line that began here ran for 54 years and 1,574 aircraft, ending when the [last 747 was delivered to Atlas Air](/blog/final-boeing-747-delivered-to-atlas-air.html) in January 2023.

## 747-100B

*URL: https://www.boeing-747.com/boeing_747_family/747-100b.php*

The 747-100B was a strengthened, higher-weight 747-100 delivered to just two customers.

The 747-100B was a strengthened 747-100: a stronger airframe and undercarriage, and a maximum takeoff weight raised to 750,000 lb (340,000 kg). It is one of the rarest 747 variants ever sold, and one of the least visible - nothing about it looks different from the outside.

**Only nine were built:** one for Iran Air and eight for Saudia, now Saudi Arabian Airlines.

### Why so few

By the time the -100B was on offer, Boeing had already launched the [747-200](747-200.php), which did the same job better. The -200B had more fuel, higher weights again, and a wider choice of engines. An airline that wanted a heavier 747 generally bought a -200 rather than a strengthened -100, and the -100B survived as a niche for two customers who wanted -100 commonality with more margin.

### Engines

Rolls-Royce (RB211) and General Electric (CF6) were both offered alongside the Pratt & Whitney JT9D. Only Saudia took the Rolls-Royce option - which makes the Saudia -100Bs among the very few RB211-powered aircraft of the first 747 generation.

### The other -100B

The designation also appears attached to Japan's domestic aircraft, as the **747-100B/SR** - a short-range, high-density airframe built on the strengthened -100B structure. Two of those were delivered to Japan Airlines with a stretched upper deck, an arrangement covered on the [747-100SR](747-100sr.php) page.

Read more about the base aircraft on the [747-100](747-100.php) page, or about where the extra weight capability eventually led on the [747-200](747-200.php) page.

## 747-100F

*URL: https://www.boeing-747.com/boeing_747_family/747-100F.php*

The 747-100F carried 516 m³ on the main deck and 694 m³ in total.

The 747-100F is the freighter the 747 was always designed to become. The raised flight deck - the reason the aircraft has a hump at all - exists so that the entire nose can hinge upward and let cargo be driven straight into the fuselage on its centreline.

That single design decision, made because Boeing expected supersonic airliners to take passenger traffic away within a couple of decades, gave the 747 a second career that outlasted its first by fifty years.

### What it carries

| | |
|---|---|
| Main deck volume | 516 m³ |
| Under-floor volume | 149.96 m³ |
| Bulk hold | 28.3 m³ |
| Total load volume | 694 m³ |
| LD3 containers in the belly | 30 |
| Main-deck pallets (2.24 × 3.18 m) | 28 |
| Main-deck pallets (2.24 × 2.99 m) | 30 |

### Weights and engines

| | |
|---|---|
| Engines | Four Pratt & Whitney JT9D-7A, 205.3 kN each |
| Empty weight | 173,010 kg |
| Max zero-fuel weight | 238,780 kg |
| Fuel | 183,360 litres |
| Max payload | 65,770 kg |
| Max takeoff weight | 333,300 kg |
| Max landing weight | 255,800 kg |

The upper deck on a -100F is not a cabin. It is normally fitted as a three-place crew lounge - space for a relief crew on a long sector, and nothing more.

### Why the nose door mattered

Side cargo doors were fitted to later 747 freighters too, and they are cheaper. But only the nose door lets you load something longer than the door itself, because the item goes in along the length of the aeroplane rather than being turned through 90 degrees inside a confined space.

That is why 747 freighters carried loads nothing else could take - engines, machinery, satellite sections, helicopters - and why the type kept selling as a freighter for decades after the passenger versions stopped.

The idea carried through the whole family: see the [747-200F](747-200f.html) for the classic-generation freighter, the [747-400F](747-400f.php) for the version that dominated the 1990s and 2000s, and the [747-8F](747-8f.php) that closed the production line.

## 747-100SP

*URL: https://www.boeing-747.com/boeing_747_family/747-100sp.php*

The 747SP (Special Performance) was a shortened, longer-ranged 747 built for ultra-long-haul routes.

The 747SP is the 747 that went the wrong way on purpose. Every other variant grew; this one had nearly 48 feet cut out of it. **Special Performance** meant range and speed rather than capacity, and for a decade it was the longest-legged airliner in the world.

Only **45 were built** against an expectation of around 200 - but the aircraft is remembered out of all proportion to its sales.

### Why it exists

The SP came from a joint request by **Pan American World Airways** and **Iran Air**. Pan Am wanted to fly New York to the Middle East nonstop; Iran Air wanted Tehran to New York, which on launch was the longest nonstop commercial flight in the world.

Nothing then flying could do it. A standard 747 had the range only if it carried very little; a smaller aircraft did not have the legs at all. Boeing's answer was to keep the 747's wing, engines and fuel, and remove the weight of the passengers instead.

### What was changed

- Fuselage sections removed both **fore and aft of the wing**; the centre section was redesigned. Length fell from 231 ft 10 in to **184 ft 9 in (56.31 m)**.
- The complex **triple-slotted Fowler flaps** of the -100 were replaced with **single-slotted flaps** - simpler and lighter, and acceptable because the aircraft was so much lighter overall.
- The under-wing "canoes" housing the flap mechanisms on full-size 747s were **deleted entirely**.
- Larger **vertical and horizontal stabilisers**, and a **double-hinged rudder**, to keep control authority with a much shorter moment arm.
- The rear upper fuselage tapers into the empennage rather than running straight back.

That last point is why an SP looks subtly wrong to anyone used to 747s: the tail is oversized, the body is stubby, and the wing looks enormous - because relative to the fuselage, it is.

### What it achieved

| | |
|---|---|
| First flight | 4 July 1975 |
| Entered service | 25 April 1976, Pan Am, New York - Tokyo |
| Length | 184 ft 9 in (56.31 m) |
| Range | 5,830 nmi (10,800 km) with 276 passengers in three classes |
| Built | 45 |

In May 1976 a Pan Am 747SP named *Liberty Bell Express* flew round the world in **46 hours 26 minutes**, covering 23,137 miles - a record that made the aircraft famous well beyond the industry.

### Why it did not sell

The SP was extremely good at one thing and expensive at everything else. It carried far fewer passengers than a full 747 while costing nearly as much to buy and burning four engines' worth of fuel. It only made money on routes where nothing else could fly at all - and there were not many of those.

Then the routes stopped being special. Twin-engined aircraft with ETOPS approval, and later the 747-400 itself, could fly the same sectors with better economics, and the SP's reason to exist evaporated.

Production had effectively finished with the 44th aircraft on 30 August 1982. Boeing reopened the line once, five years later in 1987, to build a single final SP for the United Arab Emirates government.

### Where they went

A handful survived far longer than the airlines that ordered them, largely as government and VIP transports - the aircraft's combination of range and modest size suited heads of state well.

The most remarkable afterlife belonged to a former Pan Am and United SP, which NASA and the German Aerospace Center converted into [SOFIA](/special_boeing_747s/sofia.html), an airborne observatory carrying a 2.5-metre infrared telescope behind a door that opened in flight at altitude. It flew in that role until 2022.

Aside from the [747-8](747-8.php), the SP is the only 747 whose fuselage length was ever changed from the original.

## 747-100SR

*URL: https://www.boeing-747.com/boeing_747_family/747-100sr.php*

The 747-100SR was a short-range, high-density 747 developed for Japanese airlines.

The 747-100SR is the 747 built backwards. Every other variant was pushed towards more range; the SR was pushed towards more cycles. Japanese domestic routes were short, extraordinarily busy, and flown many times a day - so what those airlines needed was not an aircraft that could cross an ocean, but one that could take off and land again, and again, for decades.

Boeing's answer was to cut fuel capacity by about 20 percent and put the weight saved into structure.

### What was changed

- Extra structural reinforcement at the wings, fuselage and landing gear, to absorb the fatigue loading of far more takeoff and landing cycles than a long-haul 747 sees.
- Fuel capacity reduced by roughly 20 percent.
- Economy seating increased sharply - up to 498 in early aircraft and over 550 in later ones.

The -100SR entered service with Japan Air Lines on 7 October 1973. **Twenty-nine SR-family aircraft were built in total:** seven 747-100SRs, twenty 747-100BSRs on the strengthened [-100B](747-100b.php) structure, and two 747-100BSR SUDs.

### The stretched upper deck came from here

Those last two matter out of all proportion to their number. The **SUD** - stretched upper deck - was first delivered on Japanese SR aircraft, extending the upper deck 23 ft 4 in aft and turning the hump from a lounge into a cabin.

Boeing later made it the defining feature of the [747-300](747-300.php), and it stayed on every 747 built afterwards. The most recognisable change in the aircraft's history began as a modification for domestic Japanese flying.

### Specifications

| | |
|---|---|
| Passengers, single class | Up to 550 |
| Engines | Four Pratt & Whitney JT9D-7A (205.3 kN) or General Electric CF6-45A2 (202.8 kN) |
| Empty weight | 164,510 kg |
| Max zero-fuel weight | 219,950 kg |
| Fuel | 183,360 kg |
| Max payload | 57,060 kg |
| Max takeoff weight | 272,100 kg |
| Max landing weight | 255,800 kg |

### How they finished

All Nippon Airways flew 747SRs on domestic routes with 455 or 456 seats and retired the last on 10 March 2006. Japan Airlines operated the 747-100B/SR/SUD with 563 seats and retired them in late 2006.

The concept did not die with them. Boeing built it again a generation later as the [747-400D](747-400d.php), a domestic 747 with the winglets deleted because on a one-hour sector they never repay their own weight - and a [747-300SR](747-300sr.php) filled the gap in between.

An extraordinary fact about these aircraft: a 747SR could accumulate more than 30,000 flight cycles in its life, against a few thousand for a long-haul 747 of the same age. They were the hardest-worked jumbo jets ever flown.

## 747-200

*URL: https://www.boeing-747.com/boeing_747_family/747-200.php*

The 747-200 was the second 747 generation, offering more power, weight and range than the original -100.

The 747-200 is the aircraft that turned the 747 from a bold experiment into the backbone of long-haul aviation. It had more thrust, more fuel and higher weights than the [747-100](747-100.php), and - decisively - it could be bought with any of the three major engine makers' products.

**393 were built** across all versions, and production ran until 1991.

### Telling one apart

A few early -200s kept the three-window upper deck of the -100. Most were built with **ten windows a side**, which is the quickest visual test between an early and a late classic 747.

The stretched upper deck that defines every later 747 had not arrived yet. That came with the [747-300](747-300.php), by way of two Japanese [747-100SR](747-100sr.php) aircraft.

### The four versions

| Version | Delivered | What it is |
|---|---|---|
| [747-200B](747-200b.php) | 233 | The passenger aircraft. More fuel, more thrust, roughly 6,857 nmi of range. In service February 1971. |
| [747-200M](747-200m.php) | 74 | Combi. Passengers forward, freight aft behind a movable partition, side cargo door. Up to 238 seats with cargo aboard. |
| [747-200C](747-200c.php) | 13 | Convertible. Removable seats and a nose cargo door, so the aircraft could switch roles. |
| [747-200F](747-200f.html) | 73 | Freighter. 105 tons of payload, 833,000 lb MTOW, in service with Lufthansa from 1972. |

Those four figures total exactly 393.

### The engine choice mattered most

It is easy to read the -200's improvements as a list of numbers, but the commercially decisive change was engine choice. The -100 was a Pratt & Whitney JT9D aircraft. The -200 could be had with the JT9D, the General Electric CF6 or the Rolls-Royce RB211.

Airlines maintain engines, not just airframes. Being able to buy a 747 that shared a powerplant with the rest of the fleet removed a barrier that had kept several carriers out of the market entirely - and it is why the -200 outsold the -100 by more than two to one.

### Where they went

Most large carriers had retired their -200s by the mid-2000s. The retirements accelerated after September 2001 and the collapse in demand that followed: airlines scrapped some aircraft, and converted others into freighters under the **747-200BF** designation, a passenger-to-freighter conversion that gave many airframes another fifteen years of work.

That pattern - passenger aircraft retired early, freighters flying on - repeated with the [747-400](747-400.php), and is the reason 747 freighters remained in production until [January 2023](/blog/final-boeing-747-delivered-to-atlas-air.html) while the passenger versions had stopped selling long before.

The -200 airframe also became the basis for the most famous 747s ever built: the two [VC-25A](/special_boeing_747s/boeing_vc25_air_force_one.php) presidential aircraft and the [E-4B](/special_boeing_747s/boeing_e-4_advanced_airborn.php) airborne command post are all 747-200s.

## 747-200B

*URL: https://www.boeing-747.com/boeing_747_family/747-200b.php*

The 747-200B was an improved 747-200 with greater fuel capacity and about 6,857 nmi of range.

The 747-200B is the definitive first-generation 747: more fuel, more thrust and more weight than the [747-100](747-100.php), and by far the most numerous of the classics. **233 were built** - more than every -100, -100B, SR and SP combined.

It entered service in February 1971 and could fly about **6,857 nmi (12,700 km)** fully loaded, which for the first time made a genuinely global route network possible with one aircraft type.

### What made it better than the -100

Three things, in order of importance:

1. **Engine choice.** The -200 was the first 747 offered with General Electric CF6 and Rolls-Royce RB211 engines alongside the Pratt & Whitney JT9D. Airlines could buy the engine they already maintained.
2. **More fuel and higher weights.** Range went up substantially, opening routes the -100 could not fly nonstop.
3. **More thrust.** Which made the higher weights usable out of hot and high airports rather than only in ideal conditions.

### Cabin

| | |
|---|---|
| Flight crew | Two pilots and a flight engineer |
| Single class | 539 |
| Two class | 32 first, 388 economy |
| Three class | 22 first, 84 business, 131 economy |
| Upper deck | 15-place lounge, or 8 first plus an 11-place lounge, or 16 first class sleepers, or 32 - 45 economy |

The flight engineer is worth noting. Every 747 up to and including the -300 was a three-crew aircraft. The [747-400](747-400.php) removed the position entirely, which is the single biggest operating-cost difference between the classics and everything that followed.

### Dimensions

| | |
|---|---|
| Cabin length | 57.00 m |
| Cabin diameter | 6.13 m |
| Cabin height | 2.54 m |
| Cabin volume | 516 m³ |
| Wingspan | 59.64 m |
| Wing area | 510.97 m² |
| Wing sweep | 37.5° |
| Fuselage length | 70.66 m |
| Fuselage diameter | 6.49 m |
| Height | 19.33 m |
| Horizontal tail span | 22.17 m |
| Wheelbase | 25.62 m |
| Track | 10.36 m |

### Cargo

| | |
|---|---|
| Main deck | 516 m³ |
| Under floor | 149.96 m³ |
| Bulk under floor | 28.3 m³ |
| Total load | 694 m³ |
| LD3 containers in belly | 30 |
| Pallets, 2.24 × 3.18 m | 28 on the main cargo deck of a freighter |
| Pallets, 2.24 × 2.99 m | 30 on the main cargo deck of a freighter |

### Engines

| | |
|---|---|
| Pratt & Whitney JT9D-7AW | 205.3 kN each |
| Pratt & Whitney JT9D-7J | 222.4 kN each |
| Pratt & Whitney JT9D-7R4G2 | 243.5 kN each |
| General Electric CF6-50E2 | 230.4 kN each |
| Rolls-Royce RB211-524D4 | 231.3 kN each |

### Weights and performance

| | |
|---|---|
| Empty | 170,600 kg |
| Max zero-fuel weight | 238,780 kg |
| Fuel | 198,370 litres |
| Max payload | 68,180 kg |
| Max takeoff weight | 377,800 kg |
| Max landing weight | 285,700 kg |
| Cruise speed | 939 km/h |
| Max speed | 969 km/h |
| Landing speed | 259 km/h |
| Max ceiling | 13,716 m |
| Range | 13,149 km |
| Takeoff run | 3,170 m at max takeoff weight |
| Landing run | 2,121 m at max landing weight |

### The rest of the -200 family

The -200 was built in four main forms: this passenger -200B, the [-200F](747-200f.html) freighter, the [-200C](747-200c.php) convertible and the [-200M](747-200m.php) Combi. Together they total **393 aircraft**, making the -200 the second most numerous 747 generation after the [-400](747-400.php).

## 747-200C

*URL: https://www.boeing-747.com/boeing_747_family/747-200c.php*

The 747-200C could be converted between passenger and freighter configurations.

The 747-200C Convertible could be flown as a passenger aircraft, as a freighter, or as a mix of the two. The seats were removable, the floor was stressed for freight, and the aircraft had a nose cargo door - with an optional side cargo door on the main deck as well.

It is the rarest of the three cargo-capable -200 layouts, and the most flexible.

### Convertible, Combi and Freighter - the difference

This trips people up constantly, so it is worth being precise:

- **747-200F** - a pure freighter. No passenger cabin. Fitted out for cargo permanently.
- **[747-200M](747-200m.php) Combi** - passengers and freight on the main deck *at the same time*, split by a partition.
- **747-200C Convertible** - passengers *or* freight, changed over as required. The seats physically come out.

The -200C is the only one that changes role between flights rather than between rebuilds. In practice conversion took days rather than hours, so operators tended to switch seasonally rather than daily.

### Upper deck options

| Layout | Detail |
|---|---|
| Lounge | 15 places |
| Mixed | 8 first class plus an 11-place lounge |
| Sleepers | 16 first class sleeper seats |
| Economy | 32 - 45 seats |

### Engines

| | |
|---|---|
| Pratt & Whitney JT9D-7AW | 205.3 kN each |
| Pratt & Whitney JT9D-7FW | 213.5 kN each |
| Pratt & Whitney JT9D-7Q | 235.75 kN each |
| General Electric CF6-50E2 | 243.5 kN each |

### Weights

| | |
|---|---|
| Empty | 164,030 kg |
| Max zero-fuel weight | 267,570 kg |
| Fuel | 198,370 litres |
| Max payload | 130,340 kg |
| Max takeoff weight | 377,800 kg |
| Max landing weight | 285,700 kg |

The 130-tonne maximum payload is the number that explains the variant. That is roughly double what the passenger -200B could carry, and it is available through a nose door - which is why a handful of these aircraft ended up moving loads that nothing else on the civil register could take.

More on the base aircraft on the [747-200](747-200.php) page.

## The Boeing 747-200F

*URL: https://www.boeing-747.com/boeing_747_family/747-200f.html*

The 747-200F offered 516 m³ on the main deck and 694 m³ of total load volume.

**A note on the URL.** This page has lived at `727-200f` since the original site was built, and the address is kept so that old links keep working. The aircraft described is the **Boeing 747-200F** - there is no 727-200F in the 747 family.

The 747-200F was the freighter version of the [747-200](747-200.php), and the aircraft that established the 747 as the standard heavy freighter worldwide. It entered service with Lufthansa in 1972, could be ordered with or without a main-deck side cargo door in addition to the nose door, and carried up to **105 tons** at a maximum takeoff weight of 833,000 lb (378,000 kg).

### Cargo capacity

| | |
|---|---|
| Main deck volume | 516 m³ |
| Under-floor volume | 149.96 m³ |
| Bulk hold | 28.3 m³ |
| Total load volume | 694 m³ |
| LD3 containers in the belly | 30 |

### Upper deck

| | |
|---|---|
| Crew lounge | 3 places |
| Or economy seats | 20 |

That 20-seat option is unusual for a freighter, and reflects how these aircraft were actually used: carrying supernumeraries, engineers travelling with a load, or livestock handlers, on routes where there was no practical alternative.

### Why the -200F endured

Freighters age differently from airliners. A passenger 747 is retired when its fuel burn per seat stops making sense against newer twins; a freighter is retired when the airframe runs out of cycles or the maintenance bill exceeds its remaining value.

Because freighters fly fewer, longer sectors and carry loads that do not complain about cabin age, 747-200Fs stayed in commercial service into the 2010s - decades after the passenger -200s had gone. Several were still flying with cargo operators long after their contemporaries had been scrapped.

### Related pages

- The [747-100F](747-100F.php), the first 747 freighter
- The [747-200C](747-200c.php), the convertible version
- The [747-400F](747-400f.php), which used this fuselage design with the -400 wing
- The [747-8F](747-8f.php), the last and largest

## 747-200M

*URL: https://www.boeing-747.com/boeing_747_family/747-200m.php*

The 747-200M combi mixed passengers forward and cargo aft on the main deck.

The 747-200M is a Combi: passengers in the front of the main deck, freight in the back, separated by a movable partition, with a side cargo door cut into the rear fuselage. It is also known simply as the 747-200 Combi.

With cargo carried on the main deck it seated up to **238 passengers in three classes**. Without it, the partition moved aft and the aircraft became a conventional airliner again.

### Why an airline would want one

The Combi solved a problem specific to certain routes: enough passenger demand to justify a 747, but not enough to fill one, combined with more freight than the belly holds could take.

KLM was the classic case, and operated ten converted 747-200s. UTA French Airlines had two converted. For routes to Africa, the Middle East and Asia, the ability to shift the split between seats and pallets from season to season was worth a great deal.

As on the [-100](747-100.php), a stretched upper deck modification was later offered.

### The safety argument

The Combi layout attracted serious scrutiny after **South African Airways Flight 295**, a 747-200M which was lost in the Indian Ocean in November 1987 following an in-flight fire in the main-deck cargo area.

The concern was structural to the concept: main-deck cargo on a Combi sat in a compartment that was not required to meet the same fire-suppression standards as a dedicated freighter's, while being on the same deck as passengers. Regulators subsequently tightened the requirements for main-deck cargo compartments on Combi aircraft, and the extra cost of compliance was one reason the configuration gradually disappeared.

The last passenger-carrying 747 Combis left service in the 2010s, ending a layout that had existed since the aircraft's earliest years.

### Related

The same idea ran through the family: the [747-300M](747-300m.php) added the stretched upper deck, and the [747-400M](747-400m-combi.php) was the last and most numerous Combi at 61 aircraft. The frequently searched-for [747-400C](747-400c.php) does not exist - it is a mix-up with the -400M.

## 747-300

*URL: https://www.boeing-747.com/boeing_747_family/747-300.php*

The 747-300 was the first 747 with the stretched upper deck as standard.

The 747-300 gave the aircraft the shape it kept for the rest of its life. Its stretched upper deck - the **SUD** - runs 23 ft 4 in further aft than the -200's, and every 747 built after it, including the [747-8](747-8.php), inherited that profile.

**81 were delivered**, in passenger, Combi and short-range forms, between 1983 and 1990.

### What changed

- **Stretched upper deck** as standard, with two new emergency exit doors and an optional flight-crew rest area immediately aft of the flight deck.
- **A straight staircase** to the upper deck, replacing the spiral staircase used on earlier variants. This is not a cosmetic change - the spiral stair ate cabin space above and below, and removing it created room for more seats at both levels.
- **Improved engines**, cutting fuel burn per passenger by about 25 percent against the earliest 747s. The General Electric CF6-80C2B1 replaced the CF6-50E2; the other two engine options carried over from the [-200](747-200.php).
- **Minor aerodynamic refinements** that raised cruise speed from Mach 0.84 to **Mach 0.85**.

Takeoff weight was unchanged from the -200. The -300 carried about 10 percent more passengers on the same weights - it was an efficiency variant, not a bigger aeroplane.

### The name was used twice

Confusingly, "747-300" had already been proposed for a variant that was never launched - a shortened three-engined aircraft now covered on the [747 trijet](747-trijet.html) page. Boeing revived the designation in 1980 for the stretched-upper-deck aircraft.

Swissair ordered the first on 11 June 1980. It first flew on 5 October 1982, and Swissair took delivery on 23 March 1983.

### The versions

| Version | Delivered | What it is |
|---|---|---|
| 747-300 | 56 | The passenger aircraft |
| [747-300M](747-300m.php) | 21 | Combi - rear main-deck cargo, more seats than a -200M thanks to the SUD |
| [747-300SR](747-300sr.php) | 4 | Short-range, high-density, for Japanese domestic routes with 600+ seats |

Boeing never built a factory 747-300 freighter, though used passenger -300s were converted to cargo from 2000 onwards.

### Why it had such a short run

The -300 was overtaken almost immediately. Boeing launched the **[747-400](747-400.php) in 1985** - two years after the -300 entered service - and the -400 was a decisively better aeroplane: winglets, a glass cockpit, and no flight engineer.

That last point mattered most. The -300 was the final three-crew 747. Any airline choosing between them in 1986 was choosing between two aircraft of similar capacity where one needed a third pilot's seat filled on every sector, for the whole life of the aircraft. The -300 never stood a chance.

The last was delivered to Sabena in September 1990.

### The end of service

Qantas flew its last scheduled -300 service on 29 December 2008, Melbourne to Los Angeles via Auckland, and ferried the aircraft to storage in the United States three weeks later. Air France, Japan Airlines and Saudi Arabian Airlines were among the other late operators. A few were converted to freighters; the type is now gone from commercial service.

## 747-300M

*URL: https://www.boeing-747.com/boeing_747_family/747-300m.php*

The 747-300M combined rear main-deck cargo with the stretched upper deck.

The 747-300M is a Combi built on the [747-300](747-300.php) airframe: freight in the rear of the main deck behind a movable partition, passengers forward, and a side cargo door behind the wing - the same arrangement as the [747-200M](747-200m.php), but with the stretched upper deck.

**21 were delivered.**

### Why the stretched upper deck helped a Combi more than anyone

On a Combi, main-deck floor space is the thing being fought over. Every pallet position aft is a block of seats you cannot sell.

The stretched upper deck changes that arithmetic. It adds roughly 44 seats' worth of cabin *above* the main deck, in a space that cargo can never use. So on a -300M the seats displaced by freight are partly recovered upstairs - which is why a -300M carried meaningfully more passengers than a -200M with the identical cargo load.

That is a neat illustration of why the SUD mattered commercially, and not just visually.

### Operators and fate

The -300M went to airlines running routes with strong cargo demand and moderate passenger numbers - the same logic that drove every 747 Combi. KLM was the archetypal Combi operator across the whole family.

The configuration is now extinct in passenger service. The main-deck cargo compartment on a Combi sat on the same deck as passengers, and after the loss of a [747-200M](747-200m.php) to an in-flight cargo fire in 1987 regulators tightened fire-suppression requirements considerably. The cost of compliance, combined with the general shift to dedicated freighters, ended the layout.

### Related

- The [747-300](747-300.php), the base aircraft
- The [747-300SR](747-300sr.php), the high-density domestic version
- The [747-400M](747-400m-combi.php), the last and most numerous Combi

## 747-300SR

*URL: https://www.boeing-747.com/boeing_747_family/747-300sr.php*

The 747-300SR was a short-range 747-300 seating over 600 passengers.

The 747-300SR is a short-range, very high capacity [747-300](747-300.php), built for Japanese domestic routes. Japan Airlines operated them with **more than 600 seats** on sectors such as Okinawa - Tokyo.

**Only four were delivered** - the rarest of the -300 variants.

### The Japanese domestic problem

Japan's trunk routes were unlike anything else in the world: sectors of an hour or two, flown many times a day, with demand that justified the largest aircraft ever built. The constraint was not range but **cycles** - takeoffs and landings, which fatigue an airframe far faster than flight hours do.

Boeing had already solved this once with the [747-100SR](747-100sr.php), by reinforcing the wings, fuselage and landing gear and cutting fuel capacity by about 20 percent. The -300SR applied the same thinking to the stretched-upper-deck airframe, where the extra upper-deck cabin pushed seat counts past 600.

It was done again a generation later for the [747-400D](747-400d.php), which went further still and deleted the winglets - on a one-hour sector they never repay the weight they add.

### Freighters

Boeing never launched a factory-built 747-300 freighter. Used passenger -300s were converted to cargo from 2000 onwards instead, which is how a number of these airframes finished their working lives.

JAL and JALways flew the -300SRs on domestic leisure routes and to other parts of Asia before retiring them.

## 747-400

*URL: https://www.boeing-747.com/boeing_747_family/747-400.php*

The 747-400 introduced winglets and a glass cockpit that removed the need for a flight engineer.

The 747-400 is the most successful 747 ever built - **694 aircraft** across all versions, more than the -100, -200, -300 and SP combined - and for most people it is simply what a 747 looks like.

Boeing announced it in October 1985, rolled it out in January 1988, and flew it on 29 April 1988. Northwest Airlines took the first on 26 January 1989 and put it into service on 9 February.

### What changed from the -300

| Change | Why it mattered |
|---|---|
| **Two-crew glass cockpit** | Removed the flight engineer's position entirely - the single largest operating-cost saving |
| **6 ft wingtip extensions and 6 ft winglets** | Reduced induced drag; the most visible external change |
| **Lighter wing** | Composites and new aluminium alloys, so the wing got bigger *and* lighter |
| **Tail fuel tanks** | Extra fuel in the horizontal stabiliser, adding range |
| **Revised engines** | Pratt & Whitney PW4000, GE CF6-80C2 or Rolls-Royce RB211-524G |
| **New interior, fairings and IFE** | Revised fuselage-to-wing fairings and an all-new cabin |

The stretched upper deck carried over from the [-300](747-300.php) as standard on passenger aircraft.

### The flight engineer

It is hard to overstate this one. Every 747 up to the -300 needed three people on the flight deck. The -400's glass cockpit needed two.

Over a 25-year airframe life flying long sectors, that is an enormous sum of money - and it is why the -300 was obsolete within two years of entering service, and why airlines replaced perfectly serviceable classics with -400s rather than waiting.

Certification came in three stages, one per engine: **10 January 1989** with the PW4000, **18 May 1989** with the CF6-80C2, and **8 June 1989** with the RB211-524G.

### The London to Sydney flight

In 1989 a Qantas 747-400 flew **London to Sydney nonstop** - 9,720 nmi (18,000 km) in 20 hours 9 minutes.

It is worth being precise about what that was, because the record is often overstated: it was a delivery flight with no commercial passengers or freight, using a specially produced high-density jet fuel from Shell. It demonstrated what the airframe could do stripped of payload, not what it did in service.

### The versions

| Version | Built | What it is |
|---|---|---|
| 747-400 passenger | 442 | The standard aircraft |
| [747-400M](747-400m-combi.php) Combi | 61 | Passengers forward, freight aft on the main deck |
| [747-400D](747-400d.php) Domestic | 19 | High-density Japanese domestic; no winglets |
| [747-400F](747-400f.php) Freighter | 126 | Factory freighter using the -200F fuselage |
| [747-400ER](747-400er.php) | 6 | Extended range; Qantas was the only passenger customer |
| [747-400ERF](747-400erf.php) | 40 | Extended-range freighter |
| [747-400BCF](747-400bcf.php) | ~50 conversions | Passenger aircraft converted to freighters |

The [747-400C](747-400c.php) frequently turns up in searches. It does not exist - it is a mix-up with the -400M Combi.

### The Signature Interior

Boeing's Signature Interior was later offered on the -400, both as a retrofit and factory-fitted. China Airlines' final four 747-400s - the last four passenger -400s ever built - were delivered with it. One of them, B-18210, wore a hybrid livery with a China Airlines tail and Boeing fuselage colours.

### The end of the line

Production of the passenger -400 officially ceased on **15 March 2007**. The last four on order were cancelled by Philippine Airlines, which switched to the 777-300ER - a telling substitution, since a twin was by then doing the job of a four-engined aircraft.

China Airlines placed the final passenger order in November 2002. The last passenger 747-400 was built in 2005 and delivered that April: the **1,358th 747** built, MSN 33737, registered B-18215.

Freighter production continued to 2009, after which the [747-8](747-8.php) took over.

## 747-400BCF

*URL: https://www.boeing-747.com/boeing_747_family/747-400bcf.php*

The 747-400BCF is a passenger-to-freighter conversion of the 747-400.

The 747-400BCF - **Boeing Converted Freighter**, originally the 747-400SF for Special Freighter - turns a retired passenger [747-400](747-400.php) into a cargo aircraft. The programme launched in 2004, and the first converted aircraft was redelivered to **Cathay Pacific Cargo** and entered service on **19 December 2005**. Around **50 aircraft** were converted before the programme ended.

### What a conversion involves

This is a serious rebuild, not a refit:

- The passenger interior is stripped out completely.
- A **large main-deck side cargo door** is cut into the rear fuselage.
- The main-deck floor is **reinforced** to take freight loads, and cargo handling systems, roller tracks and restraints are installed.
- The cabin windows are plugged.
- A **rigid barrier** is fitted behind the flight deck.

What a converted aircraft does *not* get is a nose door. That is a structural feature designed in from the start, and it cannot practically be added later - so a BCF loads through the side only, and cannot take the outsize loads that a factory-built [747-400F](747-400f.php) can.

### Why conversions existed at all

Two things happened at once in the mid-2000s. Air freight demand grew steadily, and airlines began retiring passenger 747-400s in numbers as twin-engined aircraft took over long-haul passenger routes.

That produced a supply of structurally sound airframes with decades of life left, available at a fraction of the cost of a new freighter - while Boeing's production line could not keep up with freighter demand anyway. Conversion was the obvious answer.

It is the same economic logic that produced almost every [special-mission 747](/special_boeing_747s/): a large supply of sound used airframes with enough structural margin to justify serious modification.

### Why it ended

The supply eventually worked against it. Once the [747-8F](747-8f.php) was available new, and once fuel prices made four-engined freighters harder to justify against the 777F, the case for spending heavily on converting an ageing airframe weakened.

Boeing formally closed the -400BCF programme, and passenger-to-freighter conversion of 747s largely moved to third parties such as IAI Bedek, whose equivalent is designated **747-400BDSF**.

## 747-400C

*URL: https://www.boeing-747.com/boeing_747_family/747-400c.php*

The 747-400C does not exist; the aircraft usually meant is the 747-400M Combi.

**There is no Boeing 747-400C.** If you are looking for one, the aircraft you want is the **[747-400M Combi](747-400m-combi.php)**.

### Where the confusion comes from

The mix-up is entirely reasonable. Across the 747 family, **C** does mean cargo-capable - the [747-200C](747-200c.php) is a genuine variant, a Convertible that could be switched between passenger and freighter roles.

So when people encounter a 747-400 carrying freight on its main deck, "747-400C" is a natural guess. But Boeing never built a Convertible on the -400 airframe. The cargo-capable passenger -400 is designated **M**, for **Mixed** configuration, and is universally called the Combi.

### The letters, straightened out

| Suffix | Meaning | On the -400? |
|---|---|---|
| **M** | Mixed - passengers and freight together on the main deck | Yes - [747-400M](747-400m-combi.php), 61 built |
| **F** | Freighter - cargo only, factory built | Yes - [747-400F](747-400f.php), 126 built |
| **C** | Convertible - switched between roles, seats removable | **No.** Only on the [747-200C](747-200c.php) |
| **D** | Domestic - high density, short range | Yes - [747-400D](747-400d.php), 19 built |
| **ER** | Extended Range | Yes - [747-400ER](747-400er.php), 6 built |
| **BCF** | Boeing Converted Freighter - a rebuilt passenger aircraft | Yes - [747-400BCF](747-400bcf.php) |

The distinction between **M** and **C** is real, not pedantic. A Combi carries passengers and freight *simultaneously*, separated by a partition. A Convertible carries one *or* the other, with the seats physically removed between roles.

The nearest thing to a "converted" -400 is the [747-400BCF](747-400bcf.php), but that is a permanent rebuild of a passenger aircraft into a freighter, not something switched back and forth.

## 747-400D

*URL: https://www.boeing-747.com/boeing_747_family/747-400d.php*

The 747-400D was a domestic, high-density 747-400 built without winglets.

The 747-400D is the 747 built for the shortest flights it ever made. **"D" is for Domestic**, and the aircraft was developed for Japanese trunk routes: sectors of an hour or two, flown constantly, with demand that justified the highest seat counts ever certified on the type.

It seats a maximum of **568 passengers in two classes, or 660 in a single class**. **Nineteen were built.**

### The winglets are missing - deliberately

This is the -400D's signature, and it is the opposite of what most people assume. It lacks the wingtip extensions and winglets fitted to every other [747-400](747-400.php).

Winglets reduce induced drag, and on a long cruise that saves a great deal of fuel. But they also add weight and increase bending loads at the wing root - and on a one-hour sector, an aircraft spends most of its time climbing and descending rather than cruising. The fuel saved never repays the weight carried.

Removing them lowers wing stress, which matters enormously on an aircraft doing many takeoffs and landings a day. **Cycles, not hours, are what wear out a domestic 747.**

### Other differences

- **No extra fuel tanks.** The -400D does not carry the additional tankage of the long-range versions; it does not need the range and the weight would be dead loss.
- **More upper-deck windows** than a standard -400 - two on the port side and four on the starboard side - reflecting the higher-density cabin above.
- **Convertible back.** A -400D could be converted to standard long-range configuration if an operator needed it, with the winglets and tankage fitted.

### Service life

| | |
|---|---|
| First flight | 18 March 1991 |
| Entered service | 22 October 1991, Japan Airlines |
| Last delivery | December 1995, All Nippon Airways |
| Built | 19 |

JAL retired its last -400D in 2011. ANA flew the type until **31 March 2014**, when JA8961 made its final flight after 24 years and more than 33,000 cycles.

That cycle count is the whole story of the variant. A long-haul 747 of the same age might have accumulated a few thousand. These aircraft did the work of short-haul jets at 747 scale.

### The idea has a long history

The -400D was the third generation of a Japanese domestic 747. The [747-100SR](747-100sr.php) came first in 1973, with reinforced structure and reduced fuel; the [747-300SR](747-300sr.php) followed with the stretched upper deck and 600-plus seats.

## 747-400ER

*URL: https://www.boeing-747.com/boeing_747_family/747-400er.php*

The Boeing 747-400ER was a higher-weight, longer-range 747-400 built only six times as a passenger aircraft, all for Qantas. All six carried a single body fuel tank; the certificated two-tank option was never taken up, and no example survives.

The **Boeing 747-400ER** was the final passenger development of the 747-400. It kept the standard aircraft's dimensions and unmistakable shape, but used a strengthened airframe, a higher maximum takeoff weight and an optional extra fuel tank to make demanding long-haul routes more practical. Its maximum takeoff weight of 910,000 lb gave it the industry nickname **"910k"**.

Only **six passenger 747-400ERs** were built, all for Qantas. That makes it one of the rarest production 747 variants and a particularly important chapter in the history of long-range flights across the Pacific.

**The short version:** compared with the standard 747-400, the -400ER could fly about 435 nautical miles (805 km) farther or carry 15,000 lb (6,800 kg) more payload. The operator chose how to use the extra takeoff weight on each mission. All six aircraft carried a single auxiliary body fuel tank - the two-tank option was certificated, provisioned for at the factory, and never taken up by anyone.

### On this page

- [Specifications](#boeing-747-400er-specifications)
- [From 747-400X to 747-400ER](#from-747-400x-to-747-400er)
- [What changed from the 747-400](#what-changed-from-the-standard-747-400)
- [Fuel capacity and the body tanks](#fuel-capacity-and-the-body-tanks)
- [The two-tank option nobody took](#the-two-tank-option-nobody-took)
- [Range and payload](#range-and-payload-explained)
- [Why Qantas needed the 747-400ER](#why-qantas-needed-the-747-400er)
- [Sydney to Dallas/Fort Worth](#sydney-to-dallasfort-worth-the--400ers-finest-hour)
- [The six Qantas aircraft](#the-six-qantas-747-400ers)
- [Retirement and the final flight](#retirement-and-the-final-flight)
- [The last missions](#the-last-missions-evacuation-and-charter-work)
- [747-400ER versus 747-400ERF](#747-400er-versus-747-400erf)
- [Frequently asked questions](#faq-heading)

### Boeing 747-400ER specifications

The figures below use Boeing's current airport-planning data where available. Range and operating-empty-weight figures should always be treated as planning values: an airline's seating, cargo, reserves, weather and operating procedures change the result of any real flight.

| Specification | Boeing 747-400ER passenger aircraft |
|---|---:|
| Flight crew | 2 pilots |
| Typical passenger capacity | 416 in Boeing's three-class planning layout |
| Typical two-class capacity | 500 in Boeing's current planning layout |
| Length | 231 ft 10 in (70.66 m) |
| Wingspan | 211 ft 5 in (64.44 m) |
| Tail height | 63 ft 8 in (19.4 m) |
| Maximum design taxi weight | 913,000 lb (414,129 kg) |
| Maximum design takeoff weight | 910,000 lb (412,769 kg) |
| Maximum design landing weight | 652,000 lb (295,742 kg) |
| Maximum design zero-fuel weight | 555,000 lb (251,743 kg) |
| Maximum structural payload | 148,100 lb (67,177 kg) |
| Typical planning cruise | Mach 0.85 |
| Published maximum range | Up to 7,580 nmi (14,205 km), mission-dependent |
| Qantas engines | 4 × General Electric CF6-80C2B5F turbofans |
| Usable fuel as actually built | 60,495 US gal (228,990 L) - one body tank, all six aircraft |
| Usable fuel, two-tank option | 63,240 US gal (239,389 L) - certificated, provision built in, never taken up |
| Maximum belly cargo volume | 5,599 cu ft (158.6 m³), reduced from 6,025 cu ft on the -400 |
| Passenger aircraft built | 6 |

The headline range is not a promise that every 747-400ER could carry every payload for 7,580 nautical miles. Aircraft range is a curve, not a single number. Boeing's own charts plot range against operating weight, payload, takeoff weight and engine type at a stated cruise condition.

### From 747-400X to 747-400ER

Boeing formally launched the aircraft on **28 November 2000**, after Qantas ordered six. During development it had been known as the **747-400X** and then the Longer-Range 747-400. The final commercial name, 747-400ER, made its purpose clearer: this was an extended-range member of the existing -400 family, not a new-size 747.

The first aircraft rolled out at Everett on **17 June 2002** and flew for the first time on **31 July 2002**. Boeing used two aircraft in a certification programme planned around roughly 230 flight-test hours and 380 ground-test hours.

Qantas accepted the first delivered aircraft on **30 October 2002**. It entered commercial service on **8 November 2002** as **QF11 from Sydney to Los Angeles**. Deliveries of all six were complete by July 2003.

### What changed from the standard 747-400

The -400ER was not stretched, and its wing planform did not change. Its main differences were beneath the skin and inside the aircraft.

Because 910,000 lb was such a distinctive number, the type picked up an industry nickname: the **"910k"**, after its maximum takeoff weight in thousands of pounds. It is a small thing, but it is how the variant was usually referred to in production and airline circles.

### Higher weights and stronger structure

Maximum design takeoff weight rose from the 747-400 baseline of **875,000 lb (396,893 kg)** to **910,000 lb (412,769 kg)**. To carry that extra weight, Boeing strengthened parts of the fuselage, wing and landing gear. The aircraft also received larger radial tyres.

That 35,000 lb increase did not automatically mean the aircraft carried 35,000 lb more payload. Boeing raised takeoff weight while the maximum zero-fuel weight remained a separate structural limit. On a long mission, much of the extra allowance was used for fuel; on a shorter mission, some could support additional traffic load.

### Engine options

Boeing offered three engine choices for the -400ER, each rated higher than the standard 747-400 equivalent:

| Manufacturer | Model | Rated takeoff thrust |
|---|---|---:|
| General Electric | CF6-80C2B5F | 62,100 lb |
| Pratt & Whitney | PW4062 | 63,300 lb |
| Rolls-Royce | RB211-524H8-T | 59,500 lb |

For comparison, the standard 747-400's published options were the CF6-80C2B1F at 57,900 lb, the PW4056 at 56,750 lb and the RB211-524G2 at 58,000 lb - so the -400ER offered roughly 3,000 - 4,500 lb more thrust per engine depending on the choice.

**Qantas took all six aircraft with General Electric CF6-80C2B5F engines**, which is why GE is the only powerplant you will see in photographs of the type. The [GE CF6](/boeing-747-internals/) programme page covers the engine family in detail.

### Updated flight deck and cabin

Boeing fitted new liquid-crystal flight-deck displays and worked to reduce flight-deck noise. The passenger cabin used the Boeing Signature Interior, an evolution of the interior architecture introduced on the 777, with redesigned bins, ceiling panels and lighting. The bins used a pivot design that gave roughly **30% more roll-aboard bag space** than the standard 747-400, and the upper deck gained **twice the stowage capacity**.

Qantas fitted A380-style seating and in-flight entertainment to its 747-400s during the 2010s, starting with nine airframes completed at Melbourne (Avalon) from late 2011. The -400ERs were part of that programme, which is why later photographs of the type show a 58 business / 40 premium economy / 270 economy layout rather than the four-class arrangement the aircraft originally carried. The [Qantas seat maps](/seating_layouts_on_boeing_747/qantas-747-seat-maps.html) page documents that late-career layout.

### A choice between range and payload

The commercial proposition was deliberately simple: use the added takeoff weight to fly approximately **435 nmi (805 km) farther**, or carry approximately **15,000 lb (6,800 kg) more payload**. A real flight could use a combination of the two.

| Feature | Standard 747-400 | 747-400ER |
|---|---:|---:|
| External dimensions | 231 ft 10 in long; 211 ft 5 in span | Identical |
| Comparison MTOW | 875,000 lb | 910,000 lb |
| Usable fuel with GE engines | 57,065 US gal | 60,495 US gal as built |
| Body fuel tanks | None | One as built; two certificated, never taken up |
| Maximum belly cargo | 6,025 cu ft | 5,599 cu ft |
| Advertised capability gain | Baseline | +435 nmi range or +15,000 lb payload |
| Typical Boeing three-class layout | 416 seats | 416 seats |
| Passenger production | Main -400 variant | 6 aircraft, all for Qantas |

### Fuel capacity and the body tanks

The defining equipment was a set of **optional auxiliary body fuel tanks** installed in the forward lower cargo compartment. One tank could be fitted, or two for maximum fuel capacity. The current Boeing airport-planning manual lists each tank at **3,060 US gallons (11,582 L)**.

### Every 747-400ER that ever flew had only one

This is the most commonly repeated error about the type, and it is worth stating plainly: although Boeing certified the -400ER for **two** body tanks, **Qantas ordered only the single-tank version, and no 747-400ER was ever delivered with two.** The two-tank figure of 63,240 US gallons appears constantly online, including in the aircraft's own published specification, but it describes an airframe that never existed.

| Configuration | Usable fuel | Status |
|---|---:|---|
| Standard 747-400, GE engines | 57,065 US gal | Baseline |
| 747-400ER with one body tank | 60,495 US gal (228,990 L) | **All six Qantas aircraft** |
| 747-400ER with two body tanks | 63,240 US gal (239,389 L) | Certificated option, never built |

So the honest answer to "how much fuel could a 747-400ER carry?" is 60,495 US gallons. Treat the 63,240-gallon figure as a design envelope rather than a fact about any individual aircraft.

### The two-tank option nobody took

The second tank is the most interesting thing about the -400ER that never happened, and it is worth treating as a real design decision rather than a footnote.

**It was a designed-in option, not an afterthought.** Boeing's programme documentation is explicit that the aircraft was built with the second position in mind: structural and systems provisions for a second fuel cell were provided at the factory, and the cell could be **ordered as an option or installed later**. Crucially, the one-cell and two-cell installations present to the crew as **a single auxiliary tank** - the fuel management system did not change, and the handling characteristics did not change. There was also a switch added to the fuel management area of the pilot's overhead panel so the crew could drive the transfer valves manually, though Boeing noted that because the tank integrated seamlessly with the existing system, **the flight crew's workload did not increase**.

In other words, a -400ER could have been converted to two tanks. The option was real, certificated and supported by the spares and tooling. Nobody used it.

**Why the arithmetic was already spoken for.** The obvious objection is that Qantas might simply have wanted more range. The published weights suggest it could not have had both. Doing the arithmetic on Boeing's own figures:

| Quantity | Weight |
|---|---:|
| Body tank fuel, one tank (3,060 US gal at ~6.7 lb/gal) | ~20,500 lb |
| Body tank fuel, two tanks | ~41,000 lb |
| Maximum takeoff weight increase over the 747-400 | 35,000 lb |

Two full body tanks hold roughly **6,000 lb more fuel than the entire maximum takeoff weight increase the variant was granted** - and that is before counting the dry weight of the second tank's own structure. On a two-tank aircraft, the extra 20,500 lb of fuel is not free range bought with the higher MTOW limit; it is weight that has to come out of payload, or out of the fuel load itself.

That matters because Boeing's headline claim for the -400ER was a straight trade: **+435 nmi of range *or* +15,000 lb of payload.** Those are alternatives, not simultaneous benefits. The single-tank configuration is the one that makes the payload half of that claim meaningful, because one tank's ~20,500 lb of fuel sits comfortably inside the 35,000 lb allowance with room left over for traffic load. Add a second tank and the same 910,000 lb limit has to absorb 41,000 lb of fuel instead - which is the clearest technical reason the option existed on the drawing board and stayed empty in practice.

(This is arithmetic on published capacities, not a Boeing statement. It assumes both tanks filled to the certificated maximum, uses a nominal Jet A-1 density, and ignores tank dry weight - all of which make the real figure worse, not better. MTOW is a ceiling rather than a target, so an operator could always carry less fuel. But the direction of the trade is not in doubt.)

**And the second tank was not free in the hold either.** It occupied the same prime real estate - the forward lower cargo compartment, where LD-1 containers normally sit. Two tanks would have cost more belly capacity on top of the weight penalty, and belly freight is precisely the revenue Qantas was trying to protect on trans-Pacific runs.

**So the two-tank 747-400ER is a genuine "what if".** Boeing built the provisions, wrote the certification, and offered the conversion. A single customer looked at it and declined. Of the two configurations on the certificate, the one that was harder to sell on paper turned out to be the one that worked.

### The tank itself

Marshall Aerospace designed and manufactured the lightweight tank system. Marshall's modern account describes its use of bonded, dual-wall aluminium honeycomb construction for auxiliary tanks: the aim is high strength with a competitive ratio of tank weight to fuel volume. That matters because every kilogram of tank structure displaces payload before any fuel is added. Marshall states that its tank designs carry roughly **15% more fuel volume than a conventional bladder tank** in the same space, and that it ships them in sets of six - which is precisely the size of the Qantas order.

The tanks had a double wall, an integrated venting system, and their own control logic. Fuel in the body bought range, but the tanks occupied space in the forward lower hold. Airlines therefore gained mission flexibility rather than free capacity: the most useful arrangement depended on route length, cargo demand and required reserves.

### How the fuel was actually managed

The auxiliary tank was not simply plumbed into the wing. Boeing's programme documentation describes a deliberate burn sequence:

- Fuel is **used first from the centre wing tank**, not from the body tank.
- As the flight progresses, fuel is **transferred from the auxiliary tank into the centre tank** in flight.
- That transfer is driven by **cabin air pressure** as the primary source, with an electrically powered pump providing the secondary source at low altitude, on the ground, and during fuel jettison.
- A modified **Fuel System Management Card** sequenced the transfer and coordinated it with the horizontal stabiliser tank.
- A switch in the fuel management area of the **pilot's overhead panel** lets the crew drive the auxiliary tank transfer valves manually.

The practical reason is structural. The centre wing tank sits between the wing root boxes, where load-relief valves manage fuel weight exactly as the wing flexes in flight. Keeping the burn and the transfer logic centred on that tank meant the body tank acted as a reserve that was emptied into the structurally protected centre section early in the flight, rather than as a working fuel source that had to be managed throughout cruise.

### What the tank cost the airframe

Fitting a large pressure vessel inside the cargo hold required the surrounding structure to be redesigned, not merely strengthened. According to Boeing's own account of the programme:

- The body structure in the tank zone was **completely redesigned**, with existing sheet frames replaced by **single-piece machined frames**.
- **Higher-strength material** was used in the chords of the main-deck floor beams so they could survive a rapid decompression.
- A **titanium shield** was fitted on the forward body and wing ribs to reduce the chance of tank damage from a burst engine rotor.
- The tank was suspended on a **six-point system with titanium fittings**, isolated from normal airframe deflection, hanging **5 in (127 mm) above the cargo floor and 4 in (102 mm) below the cargo ceiling**.
- A **structural cargo barrier and liners** separated the tank from the cargo compartment, and its immediate surroundings were designed to keep fuel within temperature limits in the rare event of a cargo fire.
- The cells could be **rolled in and out on the cargo system rollers** using a purpose-built tool, and were accessible for line-replaceable-unit servicing without removing them from the aircraft.

Two service relocations followed directly from the tank. The **potable water system** moved to the aft end of the aft cargo compartment, becoming a two-pump design instead of the pressurised single-pump arrangement on the standard 747-400, and components of the **passenger oxygen system** were relocated because the tank blocked access to their normal positions. The cabin also gained an electrically activated passenger oxygen system and an in-flight entertainment interface backbone, both developed first for the 777.

The forward hold shrank as a direct result. Maximum belly cargo volume fell from **6,025 cu ft** on the standard 747-400 to **5,599 cu ft** with 28 LD-1 containers and bulk freight, or **5,332 cu ft** with five pallets, 14 LD-1 containers and bulk freight.

### Why published fuel figures differ

Readers will find several 747-400ER fuel capacities online. Early Boeing material quoted as much as **63,705 - 63,765 US gallons**, while Boeing's December 2024 airport-planning manual lists **63,240 US gallons for GE-powered aircraft** and **63,460 US gallons for Pratt & Whitney or Rolls-Royce installations** with two tanks. Per-tank capacity is itself quoted variously as 3,060, 3,210 and 3,240 US gallons depending on whether the source is a planning manual, a programme review or a secondary reference.

Those numbers come from documents prepared at different times and on different configuration bases. This page uses the current Boeing planning-manual figures for its main specification table, and flags the two-tank figures as unrealised. For flight planning or maintenance, the approved manuals for the individual aircraft always take precedence.

### Range and payload explained

The -400ER's often-quoted maximum range is **7,580 nautical miles (14,205 km)**. It is best understood as a maximum planning figure under defined assumptions, not as a route radius available with any passenger and cargo load.

Several variables move the result:

- **Payload:** passengers, bags and cargo consume weight that might otherwise be fuel.
- **Cabin configuration:** seats, galleys, crew-rest modules and entertainment systems change operating empty weight.
- **Wind and temperature:** westbound Pacific sectors can face strong headwinds, while hot-weather departures may be performance-limited.
- **Engine installation:** Boeing published separate payload-range charts for GE, Pratt & Whitney and Rolls-Royce powerplants.
- **Operational reserves:** diversion fuel, holding fuel and airline policy all reduce usable trip range.

This is why Boeing's launch claim - 805 km farther **or** 6,800 kg more payload - is more informative than a single maximum-range number. It describes the extra capability relative to the standard aircraft without pretending every flight has the same loading problem.

### The range figures do not agree

Expect to see several different maximum ranges published for the -400ER, and none of them is wrong in the way a typo is wrong:

| Published maximum range | Source basis |
|---|---|
| 7,260 nmi | Standard 747-400, for comparison |
| 7,580 nmi (14,205 km) | Boeing planning figure, widely quoted |
| 7,670 nmi | Boeing 747-400 series specification data |
| 7,760 nmi | A further Boeing figure quoted to press at the QF7 launch |

The same variation affects the claimed *increment* over the standard aircraft. Depending on the document, the -400ER is described as gaining **410 nmi, 435 nmi or 525 nmi** over the -400. The differences come from cruise Mach number, reserve assumptions, step-climb rules and whether the figure is a ferry-range or a payload-range intercept - not from any disagreement about the aircraft.

Real Qantas operations sat well below all of these. On the Sydney - Dallas service the sector was about 7,454 nmi with a normal passenger and belly-cargo load, leaving little margin, which is exactly why the return flight so often had to stop at Brisbane. Range figures for the 747 should always be read as the far end of a curve, not as a radius.

### Why Qantas needed the 747-400ER

Qantas's network combined very long sectors, large passenger demand and valuable belly freight. Boeing specifically cited **Melbourne - Los Angeles** as the kind of demanding route for which the extra capability mattered. Qantas said the new fleet would be used primarily on routes to the United States, and the first revenue flight was Sydney - Los Angeles.

The westbound leg to Australia could be especially demanding because of prevailing winds. The extra takeoff weight gave Qantas more options to carry commercially useful payload without an intermediate fuel stop or severe cargo restriction.

An Australian Transport Safety Bureau report also records VH-OEH operating **San Francisco - Sydney** in 2016, illustrating how the type continued to serve long trans-Pacific sectors late in its career.

### Sydney to Dallas/Fort Worth: the -400ER's finest hour

If the -400ER justifies its own existence, it is here. On **16 May 2011** Qantas put a 747-400ER into service on **Flight 7**, the nonstop Sydney - Dallas/Fort Worth leg - 13,804 km (8,577 mi, 7,454 nmi) with a scheduled block time of **15 hours 25 minutes**.

At launch it was:

- the **longest regularly scheduled nonstop flight ever flown by a Boeing 747**;
- the **third-longest regularly scheduled nonstop commercial flight in the world**, behind only Singapore Airlines' Newark - Singapore and Los Angeles - Singapore services - both of which were flown by A340-500s in all-business-class cabins carrying around 100 passengers, not 300.

That last comparison is the point. The Singapore flights were longer on the map but carried a fraction of the people. QF7 was long *and* full, which is exactly the combination the -400ER existed to make possible.

The route used a **four-class layout of 14 First, 66 Business, 40 Premium Economy and 187 Economy** seats - 307 in total, a noticeably premium-heavy configuration chosen for a sector where the front of the aircraft carries disproportionate value.

The westbound direction was the hard one, as always on the kangaroo route. Flight 7 flew nonstop; the return Flight 8 often could not, and diverted via **Brisbane**, where passengers were offloaded to enable the extra 441 km to Sydney. Strong headwinds over the Pacific meant the return leg could not be flown within the -400ER's fuel capability on many days. The -400ER flew the route until **28 September 2014**, after which Qantas moved it to the Airbus A380.

Qantas's decision to switch from San Francisco to Dallas as its Texas gateway was, in other words, a bet that the -400ER could close the gap. It could - but only just, and only eastbound.

### The six Qantas 747-400ERs

Qantas was the only airline to order the passenger version. Its aircraft carried the Boeing designation **747-438ER** - customer code **38** is Qantas, appended to the 747-400 model code, which is the same convention behind the 747-438 designation used for Qantas's standard 747-400s. The [registration and customer-code decoder](/features/registration-customer-code-decoder.html) explains how Boeing's codes work.

Qantas named each aircraft after an Australian town. Early on, the names were not displayed on the outside of the aircraft, so a single photograph rarely identifies one.

| Registration | Name | MSN / line number | Accepted by Qantas | Notable point |
|---|---|---:|---:|---|
| VH-OEE | Nullabur | 32909 / 1308 | 6 December 2002 | First -400ER built; initially used in Boeing's flight-test programme |
| VH-OEF | Sydney | 32910 / 1313 | 31 October 2002 | First delivered to Qantas and first to enter commercial service |
| VH-OEG | Parkes | 32911 / 1320 | 20 December 2002 | Third airframe accepted; the 54th Boeing 747 delivered to Qantas |
| VH-OEH | Hervey Bay | 32912 / 1321 | 9 February 2003 | Documented by the ATSB on San Francisco - Sydney service in 2016 |
| VH-OEI | Ceduna | 32913 / 1330 | 26 June 2003 | Fifth of the six Qantas aircraft |
| VH-OEJ | Wunala | 32914 / 1331 | 30 July 2003 | Final Qantas 747; wore the Wunala Dreaming livery |

VH-OEE was the first airframe built, but VH-OEF reached Qantas first while the prototype completed test work. That is why "first built" and "first delivered" refer to different aircraft.

Qantas changed cabin layouts and liveries during the fleet's long service - the fleet carried the standard "New Roo" scheme as well as *One World*, *Go Wallabies* and *Wunala Dreaming* specials - so a seat map or photograph from one year should not be treated as representative of the type's entire career.

### Retirement and the final flight

The economics of long-haul aviation moved toward large twin-engine aircraft. They could serve many of the same city pairs with fewer seats and two engines, while the niche for a higher-weight passenger 747 remained small. The -400ER therefore stayed a six-aircraft Qantas subfleet.

Qantas announced in **May 2018** that it would retire its entire 747 fleet by 2020. In the event COVID-19 removed the remaining schedule almost overnight, and the airline brought the whole operation forward by six months.

The six aircraft left service over about four months:

| Registration | Final Qantas service | Left Australia | Fate |
|---|---|---:|---|
| VH-OEF | 9 Feb 2020, QF99 Sydney - Los Angeles | Feb 2020 | Stored, San Bernardino Intl, California |
| VH-OEG | 23 Mar 2020, QF64 Johannesburg - Sydney | 10 Apr 2020 | Mojave Air and Space Port, scrapped |
| VH-OEI | 26 Mar 2020, QF64 Johannesburg - Sydney | 4 Jun 2020 | Mojave Air and Space Port, scrapped |
| VH-OEH | 26 Mar 2020, QF26 Tokyo Haneda - Sydney | 20 May 2020 | Mojave Air and Space Port, scrapped |
| VH-OEE | 29 Mar 2020, QF28 Santiago - Sydney | 17 Jun 2020 | Mojave Air and Space Port, scrapped |
| VH-OEJ | 22 Jul 2020, QF7474 Sydney - Los Angeles | 24 Jul 2020 | Mojave Air and Space Port, scrapped |

VH-OEF left first, in February, flying a normal scheduled service rather than a ceremonial one. It is the only one of the six still reported as intact and in storage; the other five went to the Mojave Desert, the graveyard where most of the world's retired 747s now sit. Qantas sold the fleet to **GE Aviation Materials**, which cancelled the aircraft from the Australian register in June 2020, and all six were ultimately parted out. Sections of VH-OEG's fuselage were later used by an aviation-themed accessories company.

**No passenger 747-400ER survives anywhere.** There is no preserved example, no museum airframe and no airworthy one. The type exists only in photographs, records and this page.

On its final flight VH-OEJ flew low over Sydney Harbour, dipped its wings to **VH-OJA** - Qantas's first 747-400, preserved at the HARS Aviation Museum - and departed to *I Still Call Australia Home*. The [farewell flights page](/features/the-farewell-flights.html) covers the ceremony in detail.

### The last missions: evacuation and charter work

Before it was scrapped, **VH-OEE** flew two of Australia's early COVID-19 evacuation flights in February 2020: the first evacuation from Wuhan, and the Diamond Princess repatriation.

On **2 - 3 February 2020** it operated QF6031/6032 from Sydney via Hong Kong to **Wuhan**, the epicentre of the outbreak, carrying **243 Australian citizens and permanent residents including 89 children** out of the locked-down city. The flight routed circuitously south-east over the Moluccas, likely because overflight clearance was difficult to obtain, before landing at RAAF Base Learmonth near Exmouth, Western Australia. Evacuees were then transferred to smaller aircraft for the leg to Christmas Island quarantine. The **14-person volunteer cabin crew and two pilots** who flew it were selected from a process Qantas described as oversubscribed, with the upper deck reserved entirely for crew.

Three weeks later, on **20 February 2020**, the same aircraft flew the **Diamond Princess** evacuation, carrying around 180 passengers from Haneda near Yokohama to Darwin for a second period of quarantine.

The type also turned up on two unusual non-scheduled sectors. **VH-OEG** flew a **Sydney - Antarctica - Sydney charter (QF2904) in November 2019**, and in August 2016 position Rio de Janeiro to collect the **Australian Olympic team**, flying them home as QF6032. It had also flown Buenos Aires from the start of Qantas's direct South America service in 2011, and its very first revenue flight in December 2002 had been Sydney - Los Angeles as QF107.

That range of work - scheduled ultra-long-haul, humanitarian charter, Antarctic science support and Olympic team transport - is a fair summary of how a six-aircraft subfleet gets used when it is the only operator of its type.

### 747-400ER versus 747-400ERF

The **[747-400ERF](747-400erf.php)** is closely related but not the same aircraft. The "F" identifies a purpose-built freighter. It has the short upper deck, a main-deck side cargo door and a hinged nose door for outsize freight; the passenger -400ER has the stretched upper deck and full passenger windows.

The most instructive difference is how each variant got its extra reach. The freighter **does not use the auxiliary body fuel system at all** - the same system that needed the second, unused tank position on the passenger aircraft. The -400ERF reached its figures by putting the whole MTOW increase into fuel instead, burned off in flight. See the [747-400ERF guide](747-400erf.php) for the full payload-against-range trade.

The freighter found a much larger market because cargo operators could regularly use its high weight capability. Boeing built **40 747-400ERFs**, compared with six passenger -400ERs.

### Where the 747-400ER fits in the family

The -400ER was the ultimate higher-weight passenger version of the [747-400](747-400.php), but it was not the final passenger 747. Boeing later developed the larger [747-8 Intercontinental](747-8i.php), with a stretched fuselage, new wing, raked wingtips and GEnx engines.

### Related

- [Boeing 747 specifications guide](/specifications.html) - every major model side by side
- [Qantas fleet history](/airlines/qantas.html) - the airline that bought all six
- [The farewell flights](/features/the-farewell-flights.html) - how Qantas said goodbye to the 747
- [Where the 747s went](/features/where-the-747s-went.html) - tracking retired airframes
- [Preserved Boeing 747s](/preserved-boeing-747s.html) - the 747s that survived, and which did not
- [Qantas 747 seat maps](/seating_layouts_on_boeing_747/qantas-747-seat-maps.html) - the late-career cabin layouts
- [Registration and customer-code decoder](/features/registration-customer-code-decoder.html) - why the type is written 747-438ER
- [747 fuel system](/boeing-747-internals/fuel-system.html) - how the wing, centre, tail and body tanks feed the engines
- [GE CF6 engines](/boeing-747-internals/) - the only powerplant fitted to the type
- [747 airframe registry](/registry/airframe-registry.html) - individual airframe records
- [Boeing 747 production data](/boeing-747-production-data.html) - build totals by variant
- [747 timeline](/747_timeline.html) - the programme in date order

## 747-400ERF

*URL: https://www.boeing-747.com/boeing_747_family/747-400erf.php*

The 747-400ERF is the freighter version of the extended-range 747-400ER.

The 747-400ERF is the freighter version of the [747-400ER](747-400er.php), and it succeeded where the passenger version did not: **40 were built**, against six of the airliner.

It was launched on **30 April 2001** and delivered to **Air France, via ILFC, on 17 October 2002**.

### What it adds

| | |
|---|---|
| Maximum takeoff weight | 910,000 lb (413,000 kg) |
| Maximum payload | 248,600 lb (112,760 kg) |
| Range | About 9,200 km |

Against a standard [747-400F](747-400f.php), the operator chooses between:

- **22,000 lb (9,980 kg) more payload**, or
- **525 nautical miles (972 km) more range**

The airframe is strengthened to carry it: reinforced fuselage, landing gear and sections of the wing, with new, larger tyres.

### Why the freighter sold and the airliner did not

The [747-400ER](747-400er.php) attracted exactly one customer. The -400ERF attracted forty. The difference is worth understanding, because it explains something about how freight economics differ from passenger economics.

A passenger airline sizes an aircraft to a route's demand. Very few routes needed more than a standard 747-400 could carry, so the -400ER solved a problem almost nobody had.

Cargo operators have the opposite constraint. Carriers such as Cargolux routinely move machinery and indivisible loads - single items that cannot be split across two flights. For that work, maximum payload and landing weight are hard limits, and an extra 22,000 lb is the difference between accepting a shipment and turning it down.

It is also why cargo range figures are quoted **at maximum payload**, not at maximum fuel. A freighter's useful range is what it can fly while full.

### How the weight was spent

When Boeing launched the ERF, the whole 35,000 lb increase in MTOW over the -400F (from 875,000 to 910,000 lb) was available as extra *fuel* - burned off in flight so the aircraft landed at the same weight as a standard -400F. That is what produced the extra range.

The [747-8F](747-8f.php) has a higher zero-fuel weight limit and more container
volume. Boeing's current planning examples identify different empty weights
and weight options, so compare those configurations before drawing conclusions
about payload or range. The [freighter specification table](/747-freighter-specifications.html)
sets out the assumptions.

That trade - payload against range, decided at the design stage - is the clearest single difference between the last two generations of 747 freighter.

## 747-400F

*URL: https://www.boeing-747.com/boeing_747_family/747-400f.php*

The 747-400F is the dedicated freighter version of the 747-400.

The 747-400F is the aircraft that made the 747 indispensable to air freight. It pairs the [747-400](747-400.php)'s wing, winglets, engines and two-crew flight deck with the fuselage design of the [747-200F](747-200f.html) - and **126 were built**.

It first flew on **4 May 1993** and entered service with **Cargolux on 17 November 1993**.

### How to spot one

The **short upper deck**. Passenger -400s carry the stretched upper deck as standard; the freighter reverts to the original short hump, because a freighter has no use for an upper-deck cabin and every kilogram of structure up there is payload given away.

Once you know to look for it, a 747 freighter is unmistakable at a distance.

### The nose door

The -400F retains the hinging nose. This is the feature the 747's whole layout was designed around - it is *why* the flight deck sits on an upper level - and it is what no other freighter of the era offered.

A side door lets you load anything that fits through the door. A nose door lets you load anything that fits *in the aeroplane*, because the load travels in along the centreline instead of being turned through 90 degrees inside the fuselage. Engines, machinery, rotor blades, satellite sections and helicopters went into 747s for that reason alone.

### Operators

Major customers included **Atlas Air, Cargolux, China Airlines, Korean Air, Nippon Cargo Airlines, Polar Air Cargo and Singapore Airlines**.

### The Airborne Laser

One 747-400F became the strangest aircraft in the family. The United States Air Force took a 747-400F airframe and rebuilt it as the **[YAL-1 Airborne Laser](/special_boeing_747s/yal-1_airborne_laser.php)**, carrying a megawatt-class chemical oxygen iodine laser behind a turret in the nose, intended to destroy ballistic missiles in their boost phase.

It is often written that the USAF bought seven of these. It did not. A fleet was originally envisaged, but **only one aircraft was ever built and flown**. The programme ran for 16 years and more than $5 billion; a second aircraft was cancelled, the programme was terminated in December 2011, and the aircraft made its last flight to Davis-Monthan Air Force Base on 12 February 2012. It was scrapped in September 2014.

### Where it led

The -400F's extended-range sibling, the [747-400ERF](747-400erf.php), added payload and range from 2002. The [747-400BCF](747-400bcf.php) programme converted retired passenger aircraft into freighters to meet demand the production line could not.

The final development was the [747-8F](747-8f.php), which stretched the fuselage again and closed the 747 production line in [January 2023](/blog/final-boeing-747-delivered-to-atlas-air.html).

## 747-400M (Combi)

*URL: https://www.boeing-747.com/boeing_747_family/747-400m-combi.php*

The 747-400M Combi carries passengers and containerised cargo on the same main deck.

The 747-400M is the last and most numerous 747 Combi - **61 built** - and the final expression of an idea that had been in the family since 1975: carry passengers and freight on the same main deck, and change the split whenever the market does.

### How it works

A large side cargo door sits behind the left wing. Passenger seats in the rear main deck can be removed and cargo tracks installed, letting the airline carry containers or pallets on the main deck behind the passenger cabin. A **locked partition** separates the two, accessible only by the crew.

Roller trays in the aft floor take 8-foot-wide containers or pallets up to **20 feet long** - any container or pallet in standard aviation use.

### The turnaround trick

The Combi's cleverest feature is one almost nobody notices: it can be turned round in the same time as an ordinary passenger 747.

Main-deck cargo loading happens aft, in a part of the aircraft where nothing else is going on, while passengers board through the forward doors. The two operations do not interfere with each other at all.

That works because of the 747's landing gear layout. The fore-and-aft arrangement of the wing and body gear gives enough stability to load heavy freight into the rear fuselage without the aircraft sitting back on its tail - something a conventionally geared aircraft could not do safely.

### What it carried

The list is unusual for a passenger aircraft: automobiles, small boats, heavy machinery, drilling equipment, and small aircraft and helicopters. Environmental control in the cargo area allowed live animals, perishable food and cut flowers, with the passenger cabin conditioned separately.

### Improvements over earlier Combis

The -400M added **extra fire protection**, the two-crew digital flight deck of the [747-400](747-400.php), advanced engines, wingtip extensions with winglets and new interiors.

The fire protection was not incidental. Main-deck cargo on a Combi sits on the same deck as passengers, and after the loss of a South African Airways [747-200M](747-200m.php) to an in-flight cargo fire in 1987, the standards applied to those compartments were tightened substantially.

The stretched upper deck also matters here more than on a normal airliner: on the -300 and -400 Combis it accommodates **44 more passengers** than the standard [747-200 Combi](747-200m.php), recovering upstairs some of the main-deck seating given over to freight.

KLM was the launch customer and the archetypal operator. Across the whole family, more than 30 customers flew a total of 144 747 Combis, 58 of them -400s.

### Why it ended

Two forces closed the configuration down. Compliance costs for main-deck fire suppression rose, and the economics of splitting an aircraft between two jobs stopped competing with running dedicated [freighters](747-400f.php) alongside dedicated passenger aircraft.

The last passenger-carrying 747 Combis left service in the 2010s. Note also that the [747-400C](747-400c.php) does not exist - the "C" is a common mix-up with this aircraft's "M".

## 747-400XQLR

*URL: https://www.boeing-747.com/boeing_747_family/747-400xqlr-quiet-long-range.html*

The 747-400XQLR was an unbuilt quiet, long-range 747 study that led toward the 747-8.

The 747-400XQLR - **Quiet Long Range** - was announced at the Asian Aerospace show in Singapore in 2002, and was supposed to enter service in 2004. It never did. Development was abandoned and the effort was redirected into what became the [747-8](747-8.php).

The **X** in the name marked it as a variation on the [747-400](747-400.php) rather than a new aircraft.

### Where it came from

The QLR was the survivor of a larger effort. After the [747X programme](boeing-747-500x-600x-and-700X.html) was terminated - a much more ambitious plan involving an entirely new 777-derived wing - Boeing kept studying what could realistically be improved on the existing aircraft without that expense.

The QLR was the answer: better range, less noise, no new wing.

### What was proposed

**Range.** 7,980 nmi (14,800 km) - further than the [747-400ER](747-400er.php).

**Noise.** New acoustic liners in the engines, and **chevron-shaped cowlings** around the fan and core exhausts. The claimed result was a **20 percent reduction in noise area level on takeoff and 40 percent on landing** against a standard -400.

Those chevrons are the serrated trailing edges now familiar from the 787 and 747-8. They work by smoothing the mixing between the exhaust flow and the surrounding air, which is where much of the low-frequency noise of a jet is generated.

**Fuel.** Extra storage in the horizontal tail tank, with gross weight rising from 910,000 lb to 921,000 lb.

**Wingtips.** Raked wingtips in place of the -400's upright winglets, similar to those on the 777-200LR/300ER and the 767-400ER.

### What became of it

The QLR did not reach production, but almost nothing about it was wasted. Its features were carried into the **747 Advanced** study, which Boeing launched as the [747-8](747-8.php) in November 2005.

The connection is direct and visible. The 747-8 has [raked wingtips instead of winglets](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html), chevron-edged engine nacelles, and a noise footprint about 30 percent smaller than the 747-400's - the QLR's three headline claims, delivered by a different aircraft.

The noise work in particular mattered commercially. Boeing said the 747-8 would be able to operate at London Heathrow around the clock, where most aircraft face a night curfew on noise grounds.

## Boeing 747-8: Final Generation Overview

*URL: https://www.boeing-747.com/boeing_747_family/747-8.php*

The 747-8 was the final and largest 747 generation. The last one built closed the production line in January 2023.

The Boeing 747-8 was the fourth and final generation of the 747: a longer fuselage, an entirely new wing, and four GEnx-2B engines. With a maximum takeoff weight of 987,000 lb (447,700 kg) it is the heaviest aircraft, commercial or military, ever manufactured in the United States.

Boeing announced the 747 Advanced as the "747-8" on **14 November 2005**. The first 747-8 Freighter went to Cargolux in October 2011 and the first Intercontinental to Lufthansa in May 2012. **155 were built** - 107 freighters and 48 passenger aircraft - and the very last 747, a Freighter for Atlas Air, was [delivered on 31 January 2023](/blog/final-boeing-747-delivered-to-atlas-air.html), closing a production run of 1,574 aircraft.

Along with the [747SP](747-100sp.php), it is one of only two 747 variants whose fuselage length was ever changed from the original - and the only one that was ever *lengthened*.

### The stretch

The 747-8 is **18 ft 3 in (5.6 m)** longer than the [747-400](747-400.php), at 250 ft 2½ in (76.26 m) overall. The extra length comes from two fuselage plugs: **13 ft 4 in ahead of the wing** and **5 ft behind it**.

That made it the longest passenger airliner in the world on entry into service, exceeding the Airbus A340-600 by about 3.6 ft.

### The wing

The wing was the largest engineering change, and it was a complete redesign rather than a modification.

Boeing kept the sweep and basic structure to contain cost, but made the wing **thicker and deeper** with the aerodynamics recalculated from scratch - a different pressure distribution and different bending moments. Boeing's January 2026 general-characteristics table gives the passenger version **63,034 US gal (238,609 L)** including tail-tank volume; the same manual's detailed tank table gives 59,734 US gal and no horizontal-stabilizer quantity, so the exact planning configuration matters. (Programme material from 2005 - 08 quoted a planned 64,225 US gal.)

Other changes:

- **Single-slotted outboard flaps and double-slotted inboard flaps.**
- **Raked wingtips** replacing the -400's upright winglets - the same solution used on the 777-200LR, 777-300ER, 767-400ER and 787. They reduce the wingtip vortices at the lateral edges of the wing, cutting wake turbulence and drag.
- Some **carbon fibre reinforced plastic** in the airframe to save weight, though structural changes overall were evolutionary rather than revolutionary against the -400.

One neat consequence: because the redesigned wing carried so much more fuel, Boeing did not need to rework the horizontal tail to take auxiliary tanks - a saving that came free with the new wing. The vertical tail was raised slightly, to 64 ft 2 in (19.6 m).

There is a [detailed page on the 747-8 wing](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html) in the reference section.

### The engines

The **General Electric GEnx** - one of the two powerplants offered on the 787 - was the only engine ever available on the 747-8. The 747 version was adapted to provide bleed air for conventional aircraft systems, and given a smaller fan diameter to fit under the 747 wing.

An exclusivity agreement between GE and Boeing meant no other manufacturer's engine could be fitted for at least ten years. For an aircraft whose predecessor's success rested substantially on [offering three engine choices](747-200.php), that was a striking reversal - and it removed one of the reasons airlines had historically chosen the 747.

### A difficult programme

The 747-8 did not have an easy birth. Production of the first Freighter began at Everett in early August 2008. On **14 November 2008** Boeing announced a delay, citing limited availability of engineering resources inside the company, design changes, and a factory workers' strike. First Freighter delivery slipped from late 2009 to the third quarter of 2010; the Intercontinental slipped from late 2010 to the second quarter of 2011.

By February 2009 only **one airline customer - Lufthansa - ** had ordered the passenger version, and Boeing publicly reassessed the project. Chief executive Jim McNerney said continuation was not a foregone conclusion.

The programme continued, but that early warning proved accurate: the passenger version never found a broad market, and the freighter carried the aircraft to the end.

### Against the A380

The 747-8 was pitched directly against the Airbus A380 on long-haul routes, and both were shaped by the same bet - that hub-to-hub traffic would keep growing and airlines would want ever-larger aircraft.

The bet was wrong for both. Airlines moved to smaller, more efficient twins flying point-to-point, and neither very large aircraft sold as hoped. A380 production ended in 2021; the 747 followed in 2023.

### The two versions

- The **[747-8 Intercontinental](747-8i.php)** - the passenger aircraft. 48 built.
- The **[747-8 Freighter](747-8f.php)** - the cargo aircraft, which flew first and sold better. 107 built.

For a fuller treatment of the aircraft, see [Everything about the Boeing 747-8](/everything-about-the-boeing-747-8/).

## 747-8F

*URL: https://www.boeing-747.com/boeing_747_family/747-8f.php*

The 747-8F was the freighter version of the 747-8, and the last 747 variant in production.

The 747-8 Freighter is the aircraft that carried the whole 747-8 programme, and the last 747 ever built. **107 were delivered** - more than twice the [Intercontinental](747-8i.php) - and the final one went to **Atlas Air on 31 January 2023**, [closing the production line](/blog/final-boeing-747-delivered-to-atlas-air.html) after 54 years and 1,574 aircraft.

It was also the first version of the [747-8](747-8.php) to fly and to enter service, going to **Cargolux in October 2011**.

### Why Boeing built it first

By the mid-2000s the 747 was carrying roughly half the world's air freight. That was the franchise worth defending, and it was under no real threat from twin-engined aircraft - because nothing else had a nose door.

So Boeing built the freighter first and the airliner second. It was the right call: the freighter outsold the passenger version more than two to one and kept the line open for a decade after passenger orders dried up.

### What it carries

The technical table above uses Boeing's January 2026 planning example at
987,000 lb maximum takeoff weight. Its **292,400 lb (132,630 kg) structural
payload** follows from 727,000 lb maximum zero-fuel weight minus an estimated
434,600 lb operating empty weight. Equipment and operator configuration change
empty weight and therefore payload; this is not a universal value for every -8F.

[Compare the factory freighters](/747-freighter-specifications.html) for the
weight options and container volumes.

The 18 ft 3½ in stretch over the [747-400F](747-400f.php) - split just before and just aft of the wing - created **four extra pallet positions on the main deck**, plus either two extra containers and two extra pallets, or three extra pallets, in the lower hold.

As on the -400F, the upper deck is **short**, not stretched. A freighter has no use for an upper-deck cabin, and the structure would be payload given away.

It achieves about **16 percent lower ton-mile operating cost** than the 747-400F.

### Payload versus range: the design choice

The 747-8F carries more than the [747-400ERF](747-400erf.php) but does not fly as far, and the reason is a deliberate decision about where to spend the extra weight.

When Boeing launched the -400ERF, the entire 35,000 lb increase in maximum takeoff weight over the -400F (875,000 to 910,000 lb) was made available as **extra fuel** - burned off in flight so the aircraft landed at the standard -400F weight. That bought range.

Boeing's 987,000 lb planning option has a 727,000 lb zero-fuel limit, compared
with 611,000 lb in the -400ERF planning table. That higher structural limit
provides more payload capacity, while actual range still depends on loading
and mission assumptions.

Which is better depends entirely on the operator. Carriers such as Cargolux frequently move machinery or indivisible loads - single items that cannot be split between two flights - where maximum payload and landing weight are hard limits and range is not. On trips where the payload is below maximum, the aircraft simply takes more fuel and flies further.

This is also why cargo range figures are quoted **at maximum payload** rather than at maximum fuel. A freighter's useful range is the range it has when full.

### Operators

UPS Airlines became the largest operator, with orders totalling 30 aircraft by 2016. Cargolux, Cathay Pacific Cargo, AirBridgeCargo, Korean Air and Atlas Air all flew substantial fleets.

Those aircraft are young by freighter standards. The 747-8Fs delivered in the 2010s and early 2020s have decades of work ahead of them - which means the 747 will be flying freight well into the 2040s, long after the last passenger example is gone.

### Related

- [747-8](747-8.php) - the family overview
- [747-8 Intercontinental](747-8i.php) - the passenger version
- [747-400F](747-400f.php) - the previous generation
- [The 747-8 Freighter interior](/everything-about-the-boeing-747-8/boeing-747-8-freighter-interior.html)

## Boeing 747-8 Intercontinental: Technical Specifications

*URL: https://www.boeing-747.com/boeing_747_family/747-8i.php*

The 747-8 Intercontinental was the last passenger 747. Lufthansa remains its largest operator.

The 747-8 Intercontinental is the passenger version of the [747-8](747-8.php), and the last passenger 747 ever built. **48 were delivered.** It is the longest volume-production fixed-wing commercial aircraft in the world; only the single Antonov An-225, built to carry the Soviet Buran shuttle, was longer.

### The numbers

The specification table above uses Boeing's January 2026 passenger planning
configuration. Its 467 seats are a reference three-class arrangement, not an
airline's actual seat map. The 224 ft 5 in (68.40 m) span is shown on Boeing's
general-dimensions drawing, printed page 2-5.

Range varies with payload, equipment and flight conditions. See the
[family comparison](/specifications.html) for historical published range
summaries and the source configuration notes.

At 18 ft 4 in (5.6 m) longer than any earlier 747, the -8 family got its length from a **13 ft 4 in fuselage plug ahead of the wing** and a **5 ft plug aft of it**.

### Designed to fit existing airports

One of the shrewdest decisions on the programme: the Intercontinental was designed to the same height as the [747-400](747-400.php) and to fit existing 747 gates. No airport needed to reconfigure anything to accept it.

That was a pointed contrast with the A380, which required airports to rebuild stands and jetways for a full double-deck aircraft. Boeing's argument was that an airline could introduce the 747-8 into its existing network without capital spending anywhere on the ground.

The extra 18.3 ft of length allowed **51 more seats** than a 747-400, and the flight crew rest area was moved to the upper deck, freeing main-deck and lower-hold space. The result was **37,000 lb of cargo capacity** - 33 percent more than a 747-400, and 8,600 lb more than an A380.

Boeing claimed the Intercontinental was 10 percent lighter per seat than the A380, with trip costs about 20 percent lower and seat-mile costs about 5 percent lower.

### The cabin

**The staircase.** On the [747-300](747-300.php) and [-400](747-400.php), the stairway to the upper deck is straight and narrow, running from the galley at door 2 to the back of the upper deck on the left-hand side. The 747-8I replaced it with a **curved, sweeping staircase**. It was originally to be on the right-hand side and was moved back to the left after Lufthansa's order. The window line was extended to where the stairway meets the upper deck.

**The crown space.** Boeing proposed using the "crown" - the area above the passenger cabin normally occupied by air conditioning ducts and wiring - by moving the services to the sides. The recovered space could take galleys and crew rest areas, freeing main-deck floor for seats. It has no windows.

**SkyLoft.** During marketing, Boeing proposed a revenue-generating **SkyLoft** in the crown: **SkySuites**, small individual compartments with sliding doors or curtains containing beds, seating and entertainment or business equipment, plus a common lounge, reached by a separate stairway at the rear. More modest **SkyBunks** were also proposed. Passengers would have occupied ordinary economy seats for takeoff and landing and moved upstairs in the cruise.

Pricing feasibility studies could not make it work, and Boeing dropped SkyLoft in 2007 in favour of upper-deck galley storage, which is what the airlines actually wanted.

**Interior.** The main cabin borrowed heavily from the 787: curved overhead bins, with the centre row designed to appear attached to the curved ceiling rather than integrated into it as on the 777. Windows are the size used on the 777 and 767-400ER - **16 percent larger** than the 747-400's. A **solid-state LED lighting system** could set cabin moods from sunrise to sunset, with lower maintenance cost and longer intervals between unscheduled repairs than fluorescent lighting.

### Who bought it

Lufthansa launched the Intercontinental on **6 December 2006** and was for a long time the only airline customer - Boeing publicly reassessed the whole programme in early 2009 for that reason. Arik Air announced an intention to buy at Farnborough in July 2008; that order was never confirmed.

In the end the customer list stayed short. **Lufthansa took 19**, by far the largest fleet, and Korean Air and Air China took smaller numbers. The remainder went to VIP and head-of-state operators, for whom the aircraft's size, range and four engines were worth more than seat-mile cost.

That last category produced the final chapter. Two 747-8s are being converted into the **[VC-25B](/special_boeing_747s/vc-25b-bridge-qatar-747-8.html)** presidential aircraft, and a Qatari 747-8 was gifted to the United States and brought into service as an interim Air Force One in 2026 - meaning the passenger 747-8 will still be flying heads of state long after the last airline retires one.

### Why so few

The Intercontinental arrived at the wrong moment. Airlines were moving decisively to twin-engined aircraft - the 777-300ER and later the 787 and A350 - which flew the same routes with two engines instead of four and did not need to be filled with 400-plus passengers to make money.

The [747-8 Freighter](747-8f.php) had no such competition and outsold it more than two to one.

## 747 Trijet

*URL: https://www.boeing-747.com/boeing_747_family/747-trijet.html*

The 747 trijet was an unbuilt three-engined 747 study aimed at the L-1011 and DC-10.

In the late 1960s and early 1970s Boeing studied a **shortened, three-engined 747** to compete with the Lockheed L-1011 TriStar and the McDonnell Douglas DC-10.

On paper it was the better aircraft. The 747 trijet would have carried more payload, flown further, and seated more passengers than either rival - it was, after all, built on a much larger aeroplane's wing and systems.

### The layout

The centre engine would have been mounted in the tail with an **S-duct intake**, similar to the L-1011's, rather than straight through the fin as on the DC-10.

### Why it died

The wing killed it. Engineering studies showed that removing two engines and shortening the fuselage would require a **total redesign of the 747 wing**.

That is not obvious until you think about what the outboard engines do. On a four-engined aircraft they act as substantial masses distributed along the span, and their weight counteracts the upward bending load on the wing in flight - the wing is designed around their presence. Take them away and the load distribution changes fundamentally.

There was a second constraint that mattered just as much commercially: **maintaining the same handling characteristics as the 747** was a priority, so that pilots would not need extensive retraining. A wholly redesigned wing made that far harder to guarantee.

### What Boeing built instead

The company abandoned the trijet and pursued a **shortened four-engined 747** instead - which became the [747SP](747-100sp.php). Same wing, same engines, same handling, less fuselage. Forty-five were built.

There is a footnote worth knowing: the designation **"747-300"** was originally proposed for this never-built trijet. Boeing later reused it for the [stretched-upper-deck aircraft](747-300.php) launched in 1980, which is why the name appears attached to two entirely different aeroplanes in older sources.

### The market it was aimed at, twenty years later

The trijet was meant for a segment below the full-size 747. That segment did eventually get filled - by the **Boeing 777**, a long-range twinjet that entered service in the 1990s and was smaller than the [747-400](747-400.php).

The 777 did what the trijet was supposed to do, with two engines instead of three, and went on to take over most of the routes the 747 had held. In that sense the trijet's market was real; Boeing was simply twenty years and one engine generation too early.

For the other 747s that stayed on paper, see the [747-500X, -600X and -700X](boeing-747-500x-600x-and-700X.html) and the [747-400XQLR](747-400xqlr-quiet-long-range.html).

## Boeing 747-500X, -600X and -700X (never produced)

*URL: https://www.boeing-747.com/boeing_747_family/boeing-747-500x-600x-and-700X.html*

The 747-500X, -600X and -700X were unbuilt 1996 proposals using a new 777-derived wing.

Boeing announced the **747-500X** and **747-600X** at the **1996 Farnborough Airshow**. Neither was built. They were the most ambitious 747 derivatives ever seriously proposed, and their failure shaped everything that came afterwards.

### What was proposed

The concepts combined the 747 fuselage with an **entirely new 251 ft (77 m) span wing derived from the 777**, more powerful engines, and much heavier landing gear - nose gear going from two tyres to four, main gear from 16 to 20.

| Concept | Length | Passengers | Range | Gross weight |
|---|---|---|---|---|
| **747-500X** | 250 ft (76.2 m) - an 18 ft stretch | 462 | Up to 8,700 nmi (16,100 km) | Over 1.0 million lb |
| **747-600X** | 279 ft (85 m) | 548 | Up to 7,700 nmi (14,300 km) | 1.2 million lb |
| **747-700X** | The -600X wing on a **widened fuselage** | 650 | Same as a 747-400 | - |

The -700X is the one worth pausing on. Widening the 747 fuselage would have meant abandoning the cross-section the aircraft had carried since 1969 - effectively a new aeroplane wearing a familiar name.

### Why none were built

The cost. Boeing estimated the changes - above all the new wing for the -500X and -600X - at **more than $5 billion**, and could not attract enough airline interest to launch.

That figure is the crux. A new wing is not an incremental change; it is most of the expense of a new aircraft, requiring fresh certification of the structure, the aerodynamics and the systems that run through it. Boeing was being asked to spend new-aircraft money on a derivative, and the airlines would not commit.

### What happened instead

The 747X programme was terminated, and Boeing spent the following years studying what could be improved **without** a new wing. That produced the [747-400XQLR](747-400xqlr-quiet-long-range.html) - better range and much lower noise, on the existing airframe.

The QLR did not launch either, but its work fed directly into the **747 Advanced**, which Boeing launched in November 2005 as the [747-8](747-8.php).

The irony is that the 747-8 eventually got its new wing after all - a complete redesign, with raked wingtips much like those studied here. It reached 250 ft 2 in in length, almost exactly the -500X's proposed dimension, nine years later and after Airbus had committed to the A380.

By then the market for very large aircraft was already closing. Only **155 747-8s** were built, and Airbus fared no better with the A380. Boeing's inability to launch the 747X in 1996 looks in hindsight less like a failure of nerve than a fairly accurate reading of demand.

### Related

- The [747 trijet](747-trijet.html), studied in the early 1970s
- The [747-400XQLR](747-400xqlr-quiet-long-range.html), the QLR that followed the 747X
- The [Yellowstone Project](Yellowstone_project.php), Boeing's plan to replace its whole product line

## Yellowstone Project

*URL: https://www.boeing-747.com/boeing_747_family/Yellowstone_project.php*

Project Yellowstone produced the 787 and 777X, but the Y3 that would have replaced the 747 was never built.

Yellowstone was a Boeing Commercial Airplanes project to replace its **entire civil aircraft portfolio** with advanced-technology designs. The term "Yellowstone" refers to the technologies; **Y1**, **Y2** and **Y3** refer to the aircraft themselves.

It matters to the 747 story because **Y3 was the aircraft that was supposed to replace the 747** - and it was never built.

### The technologies

- **Composite aerostructures** instead of aluminium as the primary structural material.
- **More electric systems**, reducing the hydraulic and pneumatic systems that had run large aircraft since the 1950s.
- **More efficient turbofans** - the Pratt & Whitney PW1000G geared turbofan, the General Electric GEnx, the CFM International LEAP and the Rolls-Royce Trent 1000.

### The three aircraft, and what actually happened

**Y1 - to replace the 737.** Intended for the 100- to 200-seat market.

*Outcome: never launched.* Faced with the Airbus A320neo in 2011, Boeing chose to re-engine the 737 instead, producing the **737 MAX**. The clean-sheet single-aisle Yellowstone envisaged has still not been built.

**Y2 - to replace the 767**, and possibly the 777-200. Y2 began as the conventional, highly efficient baseline alternative to the Sonic Cruiser, a project codenamed "Glacier".

*Outcome: built.* Y2 became the **Boeing 787 Dreamliner**, covering the 220- to 320-seat market against the A330 and later the A350. It is the only Yellowstone aircraft that reached production, and it is where the composite structures and more-electric systems actually arrived.

**Y3 - to replace the 777-300 and the 747.** Intended for the 300- to 400-plus seat market, competing with the A380 and the largest A350s.

*Outcome: never launched.* Boeing instead re-engined and re-winged the 777 as the **777X**, using 787-derived technology - including folding composite wingtips - rather than designing a new aircraft. The 747's replacement, in practice, is a twin-engined 777.

### What it says about the 747

Yellowstone is a useful lens on why the 747 ended. Boeing's own long-range plan had the 747's successor as a **300- to 400-seat aircraft**, not a larger one. Even in the plan, the direction of travel was down in size and down in engine count.

The [747-8](747-8.php) went the other way, and sold 155 aircraft. The 787 - Y2, the smaller and more efficient aeroplane - sold in the many hundreds and took over the routes the 747 had flown.

The [last 747 was delivered in January 2023](/blog/final-boeing-747-delivered-to-atlas-air.html). Y3, the aircraft meant to replace it, was never launched at all.

## Individual Boeing 747 aircraft histories

*URL: https://www.boeing-747.com/boeing-747-aircraft-registry.html*

Fifteen individual 747 life stories, from the first prototype and NASA aircraft to museum classics, the final production freighter and notable incident airframes.

import RegistryBrowser from '../../../components/RegistryBrowser.astro';

Explore **15 individual Boeing 747 histories**, with photographs, former registrations, operator changes and sourced milestones. Follow the first prototype, NASA's research and shuttle carriers, museum classics, the final production freighter and two aircraft known for major incidents.

Search by a registration, including a former one such as **N744PA** or **JA8117**, or by an operator, place or event. Select an aircraft to read its full timeline and sources.

### Three histories to start with

- [N863GT: the final Boeing 747](/registry/n863gt.html), delivered to Atlas Air in January 2023 for Apex Logistics.
- [G-BDXH: British Airways' volcanic-ash survivor](/registry/g-bdxh.html), which returned to airline work after Flight 9 and later left a cockpit for restoration.
- [JA8119: the airframe behind Japan Air Lines Flight 123](/registry/ja8119.html), whose earlier tail-strike repair is part of the accident's history.

### Reading an aircraft record

This is a curated collection of life histories. Each timeline links its dated events to supporting sources. Status records were checked on **3 October 2026**; a fleet listing gives evidence of an operator, while a museum record identifies a preserved exhibit. Check individual venues for current opening times and access.

Registrations can be reused. The preserved classic [D-ABYM at Speyer](/registry/d-abym.html) is a different aircraft from the later Lufthansa 747-8 with that registration. Serial numbers help distinguish individual airframes when the same registration appears in different eras.

For more places to see a surviving jumbo, use the [preserved 747 directory](/preserved-boeing-747s.html). For aircraft currently reporting positions, use the [live 747 map](/live-boeing-747-map.html).

### Download the registry

- [CSV: aircraft identities, former registrations, operators and source links](/data/boeing-747-registry.csv)
- [JSON: full aircraft records, photographs and sourced timeline milestones](/data/boeing-747-registry.json)

The compiled dataset is licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/). Attribute Boeing-747.com and link to this page. Each photograph retains its separately displayed licence and creator credit.

## The Boeing 747 History Quiz

*URL: https://www.boeing-747.com/boeing-747-history-quiz.html*

Ten questions about the Boeing 747 - from the airlines and engineers who launched the jumbo to the variants that made it famous. Every answer links to a source page on this site.

import Boeing747Quiz from '../../components/Boeing747Quiz.astro';

The Boeing 747 has a long, strange and gloriously detailed history - 54 years,
1,574 airframes, an upper-deck lounge movement, and a launch customer that
ordered it more or less on a handshake. If you have skimmed the rest of this
site, you should do well.

### How it works

Ten questions, one at a time. Pick an answer and you instantly get the
explanation plus a link to the page it comes from - there is no second chance,
and no server involvement. A perfect round makes you as rare as the
[747SP](/boeing_747_family/747-100sp.php).

### Where the questions come from

Every fact above is sourced on this site. Start with the
[Boeing 747 family](/boeing_747_family/) for the variants, the
[airline histories](/airlines/) for the operators, and the
[airframe registry](/boeing-747-aircraft-registry.html) for the machines that
survive.

## How the 747 works

*URL: https://www.boeing-747.com/boeing-747-internals/*

A guide to 747 systems, starting with the fuel system and its eight tanks and in-flight transfer.

A 747 is not one machine but a set of overlapping systems, most of which are quadruple-redundant because the aircraft was designed to keep flying with a lot of them broken.

### In this section

The systems are covered in five groups: the airframe services every 747 needs, the controls that make it fly, the crew's interface with it, the engines that power it, and what happens when the freight comes aboard.

### Airframe systems

- **[Fuel system](/boeing-747-internals/fuel-system.html)** - the tanks, in-flight transfer and the jettison system
- **[Hydraulic systems](/boeing-747-internals/hydraulic-systems.html)** - four systems, one per engine, and why they are split that way
- **[Electrical system](/boeing-747-internals/electrical-system.html)** - four 90 kVA generators running in parallel
- **[Pneumatic and bleed air](/boeing-747-internals/pneumatic-and-bleed-air-system.html)** - the hot air tapped from the engines that runs much of the aircraft
- **[Pressurisation and air conditioning](/boeing-747-internals/pressurisation.html)** - bleed air, and why cycles matter more than hours
- **[Ice and rain protection](/boeing-747-internals/ice-and-rain-protection.html)** - anti-icing, de-icing and the windshield
- **[Oxygen system](/boeing-747-internals/oxygen-system.html)** - crew and passenger oxygen, and when it deploys
- **[Water and waste system](/boeing-747-internals/water-and-waste-system.html)** - potable water, drains and the lavatories
- **[Fire detection and extinguishing](/boeing-747-internals/fire-detection-and-extinguishing.html)** - engine, APU and cargo-hold protection
- **[Auxiliary power unit](/boeing-747-internals/auxiliary-power-unit.html)** - the APU that supplies air and power on the ground
- **[Cabin systems](/boeing-747-internals/cabin-systems.html)** - entertainment, connectivity and seat power, and why almost none of it was Boeing's
- **[Flutter and load alleviation](/boeing-747-internals/flutter-and-load-alleviation.html)** - how the wing unbends itself, deliberately

### Flight controls, gear and structure

- **[Flight controls](/boeing-747-internals/flight-controls.html)** - split ailerons, spoilers, triple-slotted flaps and Kruegers
- **[Landing gear](/boeing-747-internals/landing-gear.html)** - eighteen wheels, and the body gear steering nobody notices
- **[Brakes, autobrake and anti-skid](/boeing-747-internals/brakes-autobrake-and-anti-skid.html)** - how a 400-tonne aircraft stops
- **[Doors and emergency exits](/boeing-747-internals/doors-and-emergency-exits.html)** - the door types and the evacuation system
- **[Control redundancy and backup modes](/boeing-747-internals/control-redundancy-and-backup-modes.html)** - what the controls do when a hydraulic system is gone, and why the 747 has no manual reversion

### Flight deck and avionics

- **[Flight deck](/boeing-747-internals/flight-deck.html)** - from three crew to two
- **[Classic flight-engineer station](/boeing-747-internals/flight-engineer-station.html)** - the third seat, and everything it managed
- **[747-400 EICAS](/boeing-747-internals/eicas-747-400.html)** - the engine and crew alerting system that replaced the engineer
- **[Navigation and avionics](/boeing-747-internals/navigation-and-avionics.html)** - inertial navigation to satellite-based systems
- **[747-8 systems differences](/boeing-747-internals/747-8-systems-differences.html)** - what changed between the -400 and the -8
- **[Flight guidance and autopilot](/boeing-747-internals/flight-guidance-and-autopilot.html)** - three AFDS channels, the mode control panel and autoland
- **[Alerting and collision avoidance](/boeing-747-internals/alerting-and-collision-avoidance.html)** - TCAS, GPWS, windshear alerting and the stall warning shaker
- **[Weather radar](/boeing-747-internals/weather-radar.html)** - the dish in the nose, and the two things it cannot see
- **[Flight recorders and data acquisition](/boeing-747-internals/flight-recorders-and-data-acquisition.html)** - the two black boxes and how the QAR fits in

### Engines

- **[Engines](/boeing-747-internals/engines.html)** - JT9D to GEnx-2B, and why engine choice sold aeroplanes
- **[Pratt & Whitney JT9D](/boeing-747-internals/pratt-whitney-jt9d.html)** - the original 747 engine
- **[Pratt & Whitney PW4000](/boeing-747-internals/pratt-whitney-pw4000.html)** - a 747-400 mainstay
- **[General Electric CF6](/boeing-747-internals/general-electric-cf6.html)** - the classic-era option that outlived the JT9D
- **[General Electric GEnx-2B](/boeing-747-internals/general-electric-genx-2b.html)** - the 747-8's only engine
- **[Rolls-Royce RB211-524](/boeing-747-internals/rolls-royce-rb211-524.html)** - the British option on the -200, -300 and -400
- **[Engine thrust ratings](/boeing-747-internals/thrust-ratings.html)** - the number that is not fixed, and why a higher rating costs engine life

### Freight and reference

- **[Cargo-loading system](/boeing-747-internals/cargo-loading-system.html)** - powered rollers, and how a freighter is loaded
- **[Weight and balance and loading](/boeing-747-internals/weight-and-balance-and-loading.html)** - MZFW, and why a freighter cannot load a pallet anywhere it likes
- **[Freighter specifications](/747-freighter-specifications.html)** - factory freighter weights, fuel and cargo volume with planning assumptions
- **[Specifications](/specifications.html)** - every variant compared side by side

### The design principle

The 747 was certified in 1969 to standards that assumed things would fail, and the answer nearly everywhere was **redundancy through separation** rather than duplication in one place.

There are **four hydraulic systems**, each driven by a different engine, so losing an engine does not lose a system. Flight controls are split so no single hydraulic failure takes out an entire axis of control. Electrical generation is per engine, with an auxiliary power unit as backup on the ground and in flight.

The [landing gear](/boeing_747_family/747-400m-combi.php) carries the same philosophy: **four main gear legs plus the nose gear**, eighteen wheels in total, arranged so the aircraft can land safely with some of them unavailable.

That layout has a second benefit nobody designed for. Because the wing and body gear are spread fore and aft, a 747 is stable enough to have heavy freight loaded into the rear fuselage without sitting back on its tail - which is what made the [Combi](/boeing_747_family/747-400m-combi.php) possible.

### Where redundancy ran out

Two accidents show the limits. **Japan Air Lines Flight 123** lost all four hydraulic systems when a rear pressure bulkhead failed and destroyed the tail section - the systems were separated, but all four ran through the same place. **[National Airlines Flight 102](/videos/horrific-boeing-747-crash.html)** lost hydraulics and the stabiliser jackscrew when unrestrained cargo broke loose.

In both cases the redundancy was real; the failure was common-mode, taking out every redundant path at once.

### Related

- [The 747-8 flight deck](/everything-about-the-boeing-747-8/boeing-747-8-flight-deck.html)
- [Extreme testing](/videos/boeing-747-8-extreme-testin.html)
- [Accidents involving the Boeing 747](/accidents_with_boeing_747s/)

## A stretched 747-400 with one new engine

*URL: https://www.boeing-747.com/boeing-747-internals/747-8-systems-differences.html*

The 747-8 is a derivative of the 747-400 sharing its type certificate, but with a single more efficient GEnx-2B engine choice, raked wingtips, a longer fuselage, a more capable APU (two 120 kVA generators) and a second-crew option for an identical pilot type rating.

Treat the 747-8 as a heavily modernised, stretched 747-400 rather than a clean-sheet design: same type certificate, same conventional bleed-air and hydraulic philosophy, but new engines, more electrical capability and subtle systems upgrades everywhere.

| Key facts |  |
|---|---|
| Type certificate | Shares A20WE with the 747-400 (derivative, not a new type) |
| Engines | GEnx-2B only - ~13% better fuel burn than the -400's CF6 |
| APU | PW901C with two 120 kVA generators (vs -400's two 90 kVA) |
| Not bleedless | Conventional pneumatic/hydraulic architecture - not a 787-style more-electric aircraft |

Compared with the 747-400, the -8 looks different first: a fuselage about 5.6 m longer, raked wingtips instead of winglets, and GEnx-2B engines whose shared core and 80 percent of line-replaceable units come from the 787's GEnx-1B.

Systems changes include increased electrical generation, an upgraded PW901C auxiliary power unit, a larger main-deck flight-attendant rest (up to ten berths adjacent to door 5 in some cabins) and an optional second flight-deck position that gives -8 crews the same pilot type rating as the -400.

Deliveries total 155 (48 Intercontinental, 107 Freighter) against 694 of the -400 family, ending 54 years of 747 production in January 2023.


### Not a new aeroplane, a new powerplant

The single most important thing to understand about the 747-8 is that it is a derivative, not a clean sheet. It flies on the same type certificate as the 747-400, which is why it could be certified so quickly in 2011, and it retains the entire conventional systems architecture - bleed air, hydraulics, a conventional flight deck. The only GEnx-powered 747 is the 747-8, and the [GEnx-2B](/boeing-747-internals/general-electric-genx-2b.html) was the sole engine on it.

Where the -8 did change was in what the new engine made possible. The GEnx-2B delivered enough thrust and efficiency that the fuselage could be stretched about 5.6 m and the wing redesigned with raked wingtips, and that in turn is why the aircraft flew to a higher maximum takeoff weight. The 747-8F and 747-8 Intercontinental are, in systems terms, the 747-400 with a more efficient core, a bigger wing, and a longer body.

### The one thing it did not do

The 747-8 was sometimes criticised for not being the aircraft the 787 was. That critique is fair at the level of philosophy: the 747-8 kept bleed air, kept a conventional flight deck, and kept most of the -400's system, so its fuel-burn advantage came from the engine and the aerodynamics, not from a more-electric architecture. It was a smart, low-risk evolution of a certified airframe rather than a revolution - which is exactly what Boeing intended when it chose to keep the 747-400 certificate alive.

### Production end

The 747-8 line delivered 155 aircraft - 48 Intercontinental and 107 Freighter - against 694 of the -400 family, and ended 54 years of 747 manufacturing in January 2023. For the engine and the differences the GEnx brought, see [engine thrust ratings](/boeing-747-internals/thrust-ratings.html).

### Related

- [Fuel system](/boeing-747-internals/fuel-system.html)
- [Hydraulic systems](/boeing-747-internals/hydraulic-systems.html)
- [Electrical system](/boeing-747-internals/electrical-system.html)
- [747-8 systems differences](/boeing-747-internals/747-8-systems-differences.html)

## When the 747 tells the crew something is wrong

*URL: https://www.boeing-747.com/boeing-747-internals/alerting-and-collision-avoidance.html*

A 747 carries several independent warning systems that can all trigger at once, so FAA guidance ranks their alerts from reactive windshear at the top to a traffic advisory at the bottom.

A 747 in the 1970s warned the crew with a single master caution light and a set of annunciator panels. A 747-400 warns the crew with a voice, and it may be doing so because of traffic, terrain, weather or the airframe itself - sometimes within the same second. The interesting engineering is not in any one of those systems but in deciding **which one gets to speak**.

### Four levels, and two senses

The regulatory framework is 14 CFR 25.1322, and it sorts alerts into three classes plus a master alert:

- **Warning** - a condition requiring immediate action.
- **Caution** - a condition requiring prompt attention.
- **Advisory** - information for a normal scan.

Warnings and cautions are normally paired with a master visual alert and a master aural alert, so the crew's attention is captured before they start working out what the problem is. Advisories deliberately get neither, because an alert that fires constantly is an alert that stops being read. On the 747, the [EICAS](/boeing-747-internals/eicas-747-400.html) is what carries all of this - the master caution and warning lights, the message list, and the aural tones.

Some conditions are too urgent for that treatment. **Time-critical warnings** - reactive windshear and ground proximity are the named examples - must give the crew immediate awareness without reference to any other display. FAA guidance is specific: each such condition needs a **unique voice or unique tone**, or both, plus **unique visual information in each pilot's primary field of view**. The primary flight display is the preferred place for it, because it is where the pilot's eyes already are, which is why its alert vocabulary is written in capital letters: `WINDSHEAR`, `SINK RATE`, `PULL UP`, `TERRAIN AHEAD`, `CLIMB, CLIMB`. Time-critical text and graphics must be red, and the alert is cleared once the condition no longer exists.

### TCAS: advice, then instruction

**TCAS II** interrogates the transponders of nearby aircraft and computes whether they threaten to enter a protected volume around the 747. It produces two kinds of output:

| Output | What it means | Timing |
| --- | --- | --- |
| Traffic advisory | A nearby aircraft is a potential threat; look outside | Roughly 20 - 48 seconds to closest point of approach |
| Resolution advisory | Fly this vertical manoeuvre | Roughly 15 - 35 seconds to closest point of approach |

The ranges depend on the selected sensitivity level. Two limitations are worth stating plainly, because they are often assumed away. First, TCAS is explicitly *"a supplement to the pilot who has the primary responsibility"* - it does not relieve the crew of anything, and **it gives no indication of an aircraft without an operative transponder.** Second, resolution advisories can only be generated for intruders that report their altitude, which requires a responding Mode S or Mode C transponder. Traffic advisories are broader: any aircraft with an operative Mode S, Mode C or Mode A transponder can generate one.

A Mode S transponder is therefore mandatory for TCAS II, doing double duty as the air-to-air data link that lets two aircraft coordinate their resolution manoeuvres so that one is not told to climb while the other is told to descend.

Current software, version 7.1, adds **hybrid surveillance**: the transponder broadcasts its own position rather than the system needing to interrogate it directly, which measurably reduces congestion on the 1090 MHz frequency. Modern installations also inhibit the system near the ground - below 1,100 ft on climb and 900 ft on descent - reverting to traffic advisory only.

### Terrain, and the alert that beats everything

**Terrain awareness**, known through most of its service life as EGPWS and before that as GPWS, is the system that grew out of accidents where a perfectly serviceable 747 flew into the ground with no idea it existed. It fuses radio altitude, groundspeed and an onboard terrain database to give enGPWS-style alerts, and on later standards predictive information about the terrain ahead.

Its alerts are drawn from a wide vocabulary, and each one is individually scheduled: excessive sink rate, excessive closure rate to terrain, terrain awareness pull-up, too low terrain, too low flaps, don't sink, excessive glideslope deviation, and the voice callouts for bank angle, minimums and approaching minimums.

Windshear systems divide the same way. **Reactive** windshear detection is driven by the abrupt change in airspeed as the aircraft flies through the shear; **predictive** windshear uses the on-board weather radar to spot the microburst ahead. FAA guidance for the warning threshold is grounded in performance rather than arbitrary values: warning threshold values in excess of a 15% loss of climb gradient are treated as too late to act on, and the guidance recommends a variable, altitude-programmable threshold that becomes more sensitive as altitude decreases, because a fixed threshold that works at 1,000 ft does not leave enough room to go around at 200 ft.

### The priority scheme

Here is the problem all of that creates. A 747 on a windshear encounter in cloud near rising terrain with traffic nearby can generate half a dozen alerts at once. The approved guidance therefore ranks every alert from highest to lowest, and the ordering is not negotiable at the flight crew's discretion:

| Priority | Alert |
| ---: | --- |
| 1 | Reactive windshear warning |
| 2 | Sink rate pull-up |
| 3 | Terrain closure pull-up |
| 4 | Terrain awareness pull-up |
| 5 | Predictive windshear warning |
| 6 | Minimums voice callouts |
| 7 - 15 | Terrain awareness caution, too low terrain, too low flaps, sink rate, don't sink, glideslope |
| 16 - 19 | Predictive windshear caution, approaching minimums, bank angle, reactive windshear caution |
| 20 | **TCAS resolution advisory** |
| 21 | **TCAS traffic advisory** |

TCAS sits at the bottom deliberately. When terrain or windshear warnings fire, TCAS **automatically reverts to traffic advisory only**, so its resolution advisory is suppressed - a climb instruction from a traffic system is not allowed to compete with an instruction to pull up.

### Stall protection

The same philosophy covers the oldest warning on the aeroplane. Stall warning is a required item under 14 CFR 25.207, and the 747's stall warning is deliberately tactile as well as aural: the control column shaker is designed to be impossible to ignore, and the alerting guidance's two-sense principle is aimed at exactly this class of warning.

### Related

- [EICAS](/boeing-747-internals/eicas-747-400.html) - the system that displays and sounds most of these alerts
- [Navigation and avionics](/boeing-747-internals/navigation-and-avionics.html) - the transponders and radio navigation feeding them
- [Weather radar](/boeing-747-internals/weather-radar.html) - the predictive windshear and terrain picture
- [Flight recorders](/boeing-747-internals/flight-recorders-and-data-acquisition.html) - what they captured afterwards

## The small gas turbine that keeps the big one flying

*URL: https://www.boeing-747.com/boeing-747-internals/auxiliary-power-unit.html*

The 747's APU is a gas-turbine generator in the tail cone running while main engines are off. The 747-400 replaced the classic unit with the far more economical Pratt & Whitney Canada PW901A (two 90 kVA generators); the 747-8's PW901C ups that to two 120 kVA units.

While the 747 sits at the gate with engines shut down, a small gas turbine in the tail cone - the auxiliary power unit - drives bleed air for cabin conditioning and engine starts, and powers generators for the electrical system. It can also supply emergency backup power in flight.

| Key facts |  |
|---|---|
| 747-400 APU | Pratt & Whitney Canada PW901A |
| 747-8 APU | PW901C (derived from the PW901A) |
| Electrical output | 747-400: two 90 kVA generators; 747-8: two 120 kVA generators |
| Role | Bleed air for cabin conditioning and engine start; ground and in-flight electrical backup |

The -400's PW901A was a new APU for the Series 400 with roughly 40 percent lower fuel burn than the unit it replaced. Its load compressor delivers bleed air for cabin air conditioning and main-engine starting, while the gearbox-mounted generators supply electrical power.

The 747-8's PW901C keeps the same design but doubles the electrical rating to two 120 kVA generators. Compared with its predecessor, the 1970s-era classic 747 APU burned much more fuel for the same output.


### A ground utility that became an in-flight system

The APU is usually described as a ground device, and on a modern airliner that is mostly true. But the 747's APU also matters in flight, and the reason is that it is the only independent source of both bleed air and electrical power once the engines are running. On one engine inoperative, or after a shutdown, the APU can carry the aircraft's utilities - cabin conditioning, and the electrical load that keeps the [flight deck](/boeing-747-internals/flight-deck.html) and essential systems alive - until it lands.

### The -400 and -8 units

The 747-400's PW901A was a new auxiliary power unit for the Series 400, roughly 40 percent lower in fuel burn than the classic unit it replaced while producing more useful output. Its load compressor supplies bleed air for cabin air conditioning and main-engine starting, and its gearbox-mounted generators supply electrical power.

The 747-8's PW901C keeps essentially the same design but raises the electrical output to two 120 kVA generators, against the -400's two 90 kVA units. That increase is one of the clearest systems-level statements of what changed between the two types: more electrical capability, on a still-conventional pneumatic airframe.

### Related

- [Electrical system](/boeing-747-internals/electrical-system.html)
- [Pneumatic and bleed-air system](/boeing-747-internals/pneumatic-and-bleed-air-system.html)
- [Pressurisation](/boeing-747-internals/pressurisation.html)
- [747-8 systems differences](/boeing-747-internals/747-8-systems-differences.html)

### Related

- [Fuel system](/boeing-747-internals/fuel-system.html)
- [Hydraulic systems](/boeing-747-internals/hydraulic-systems.html)
- [Electrical system](/boeing-747-internals/electrical-system.html)
- [747-8 systems differences](/boeing-747-internals/747-8-systems-differences.html)

## Carbon brakes, anti-skid and autobrake

*URL: https://www.boeing-747.com/boeing-747-internals/brakes-autobrake-and-anti-skid.html*

Early 747s stopped with heavy steel brakes and an anti-skid system that prevented wheel lockup. The 747-400 introduced carbon brakes on all 16 main-gear wheels, saving about 1,800 lb, plus an autobrake that holds a selected deceleration rate on landing.

A 747 landing at weight stops using brakes on all four main-gear bogies - sixteen wheels under the -400. Anti-skid cycles the brakes to prevent locked wheels, and on the -400 an autobrake holds a precise deceleration rate automatically.

| Key facts |  |
|---|---|
| Main-gear wheels | 16 on the 747-400 |
| Brake material | Structural carbon on the -400 vs steel on earlier 747s |
| Weight saving | About 1,800 lb (820 kg) of unsprung weight vs steel |
| Autobrake | Holds a selected deceleration rate; introduced with the -400 |

Carbon brakes on the 747-400 saved almost a tonne versus the steel brakes of classics while absorbing far more kinetic energy - carbon actually grows stronger into the temperature range where steel begins to fade.

The -400's autobrake and anti-skid system combines hydraulic brake power with digital monitoring and automatic pressure control to hold consistent deceleration across varying runway conditions, including reduced braking on wet or icy surfaces.

### Carbon and the unsprung-mass argument

The case for carbon on the 747-400 was weight, and specifically unsprung weight. A conventional steel brake disc is heavy, and because it rotates with the wheel, that weight is carried by the landing gear and the structure supporting it. Removing roughly 1,800 lb of rotating mass across sixteen wheels was a meaningful saving on an aircraft already at the edge of what its landing gear and tyre could absorb.

Carbon also handles energy better in the relevant range. A 747 at maximum landing weight carries an enormous amount of kinetic energy, and it has to be dissipated in a few seconds. Carbon's friction behaviour stays strong through the temperatures a heavy stop produces, where steel begins to fade.

### Anti-skid and autobrake

Anti-skid is the safety layer: it monitors each wheel's rotation and modulates brake pressure to keep the wheel from locking, because a locked wheel loses most of its braking and, on a heavy jet, can be structurally damaging. On the -400 this is a digital, per-wheel system.

Autobrake sits on top of it as an automation and consistency aid. Once selected, it applies the brakes on landing to hold a chosen deceleration rate, and it works out the appropriate pressure through the anti-skid system. That gives crews a repeatable, less workload-intensive stop on the long, heavy landings the type flies, and it adapts the target to the runway conditions it detects.

### Related

- [Landing gear](/boeing-747-internals/landing-gear.html)
- [Hydraulic systems](/boeing-747-internals/hydraulic-systems.html)
- [Flight controls](/boeing-747-internals/flight-controls.html)
- [747-8 systems differences](/boeing-747-internals/747-8-systems-differences.html)

## What Boeing supplied, and what the airline chose

*URL: https://www.boeing-747.com/boeing-747-internals/cabin-systems.html*

The airframe provided structure, power and pathways; entertainment, connectivity and seat power were buyer-furnished, fitted under STC and often swapped several times over an aircraft's life.

The most surprising thing about the inside of a 747-400 is how little of it Boeing built. Air conditioning, [pressurisation](/boeing-747-internals/pressurisation.html), water and [waste](/boeing-747-internals/water-and-waste-system.html), the [oxygen](/boeing-747-internals/oxygen-system.html) the passengers breathed, the [doors](/boeing-747-internals/doors-and-emergency-exits.html) and the structure itself were all type-certificated content. The entertainment, the connectivity, the seat power and most of the seating were not. They were chosen, bought and fitted by individual airlines, usually several times over the life of the aircraft.

The proof is in the paperwork. The supplemental type certificate records for the 747-400 run to dozens of cabin-related approvals, and they are a far better guide to what a 747 cabin actually contained than any brochure.

### What Boeing did supply

The airframe and its services, described in the airport-planning documentation:

- **Two-crew cockpit with digital avionics** - the -400 was where the [engineer](/boeing-747-internals/flight-engineer-station.html) finally went away, and the [flight deck](/boeing-747-internals/flight-deck.html) was rebuilt around [EICAS](/boeing-747-internals/eicas-747-400.html).
- **An upper-deck cabin** on the stretched fuselage, and an optional **crew rest compartment in the aft cabin** - a long-haul feature rather than a luxury one, on an aircraft whose sector times were routinely ten hours and more.
- **Vacuum lavatories with single-point servicing**, covered on their own page, and a cabin designed around the single aisle of the original type.
- **Electrical power and pathways** for cabin equipment, drawn from the same distribution described in the [electrical system](/boeing-747-internals/electrical-system.html) page, plus the recirculation and air distribution that the [pressurisation](/boeing-747-internals/pressurisation.html) page covers.
- **Ground servicing connections** - conditioned air, electrical power and water - which the airport planning documentation treats as a fixed interface. On a freighter or Combi that also means loading equipment, covered under the [cargo-loading system](/boeing-747-internals/cargo-loading-system.html).

That is the boundary. Boeing delivered an aircraft with a functioning, certified cabin. Everything the passenger actually touched beyond the seat cushion and the window shade was somebody else's decision.

### Entertainment and seat power

Entertainment and seat power were, in practice, a single package. Approved 747-400 modifications repeatedly pair them: a Panasonic System 3000i in-flight entertainment system installed together with an Astronics in-seat power supply, for instance, on a 747-400 operated by a cargo conversion specialist. The same pattern shows up across the approved modification record, because a seatback screen and a socket at the same seat are the same installation decision.

The consequences of that arrangement are worth spelling out, because they explain the economics of the type:

- **Airlines could differentiate.** Two airlines operating identical 747-400s could have materially different cabins, which was a genuine competitive lever on long-haul routes.
- **Upgrades were cheap to defer.** Entertainment technology moved fast; deferring a refit for a few years cost passengers very little and saved the operator a great deal.
- **The aircraft changed repeatedly.** A single airframe could carry three or four different entertainment systems, four different seat sets and two different connectivity solutions across thirty years of service. Every one of those transitions is a line in the type certificate record.

The cost is complexity, and it shows up in the weight and balance manual rather than in the cabin. Cabin equipment, seating and crew provisions are all part of the operator's [weight and balance data](/boeing-747-internals/weight-and-balance-and-loading.html), and a change of seat specification or a different entertainment installation moves the aeroplane's empty weight and its centre of gravity. See also the site's [seating layouts](/seating_layouts_on_boeing_747/) and [interiors](/interiors/) sections.

### Connectivity came late, and by certificate

Satellite service on the 747-400 arrived entirely through approved modification, and the records show a clear progression:

| Stage | What it provided |
| --- | --- |
| High-gain SATCOM voice | The cabin public telephone, fitted on 747-400s by individual operators |
| AIRSAT II provisions | Wiring and antenna provisions installed in advance of a later installation |
| Rockwell Collins AERO H+ SATCOM | A dedicated satellite system for the cabin |
| Iridium and Iridium-based systems | Lightweight satellite voice and messaging |
| Connexion by Boeing | Satellite television, and then the data service that became in-flight internet |
| Cabin wireless LAN | Passenger and crew devices connecting to aircraft systems |

The high-gain cabin telephone is a good illustration of how narrow the line between the flight deck and the cabin can be. An approval held by a major US airline for the 747-400 reads simply: *"Installation of High-Gain Satellite Communication (SATCOM) voice system for cabin public telephone."* The same antenna architecture that serves the flight deck's data requirements was extended to the cabin, and the public could telephone home from seat 34K.

### The heat problem

One consequence of all this is thermal. Seatback electronics, seat power supplies, video distribution and cabin network racks all produce heat, and a pressurised cabin on a type whose basic layout was settled in the 1960s has a fixed cooling capacity. The system therefore has to reject a considerable amount of waste heat without compromising the passengers, and a cabin equipment change is not purely a commercial decision - it interacts with the air distribution, the [pressurisation](/boeing-747-internals/pressurisation.html) and the electrical system at the same time.

### A deliberately mixed cabin

The minimum equipment list treats most of this as dispensable. Passenger convenience items may be inoperative or missing, and the lavatory ashtray entry that appears in the approved 747-400 supplement is a small illustration of the philosophy: a cabin feature can be allowed to fail without grounding the aeroplane, provided the associated safety systems remain operative.

The safety-critical cabin equipment is of course not treated that way. The cabin is where the [oxygen](/boeing-747-internals/oxygen-system.html), the [fire detection](/boeing-747-internals/fire-detection-and-extinguishing.html) and the evacuation systems live, and those are certified content on every 747 built.

### Related

- [Pressurisation](/boeing-747-internals/pressurisation.html) - the air the cabin actually breathes
- [Oxygen system](/boeing-747-internals/oxygen-system.html) - crew and passenger masks
- [Doors and emergency exits](/boeing-747-internals/doors-and-emergency-exits.html) - the evacuation system
- [Weight and balance and loading](/boeing-747-internals/weight-and-balance-and-loading.html) - where every cabin change is recorded

## Why the 747 loads through its nose

*URL: https://www.boeing-747.com/boeing-747-internals/cargo-loading-system.html*

The 747's freighter nose door comes from the 1960s USAF heavy-lift competition: the cockpit sits above the deck so the whole nose can hinge up for drive-in loading. Freighters add a side cargo door and a standard 96×125-in pallet system; the -400F carries 23 such pallets.

Raised above the main deck, the 747 cockpit leaves the entire nose free to hinge upward. That nose door - an idea inherited from the USAF's 1960s heavy-lift competition - is why a 747 freighter can pull a load straight in the front.

| Key facts |  |
|---|---|
| Nose door | Upward-opening, for straight-in loading |
| Side door | 134 × 120-in main-deck side door (left-hand) |
| Pallet system | Standard 96 × 125-in pallets; ~23 on the main deck of a -400F |
| Lower lobe | LD-1/LD-3 containers and smaller pallets |

The same airframe could be built as a factory freighter or converted later: the -200C was the convertible with the nose door and strengthened floor, and today's -400BCF and -400BDSF conversions compete with factory-built -400Fs on operating economics.

Lower-lobe holds take LD-1/LD-3 containers and smaller pallets through belt-loader doors, giving a three-level loading case that fits modern ramp equipment. For the economics of factory freighters versus conversions, see the [factory versus converted freighter comparison](/features/factory-vs-converted-747-freighters.html).

### The nose door is the whole design premise

The 747's raised cockpit is the reason its freighter configuration works. On a conventional freighter the flight deck sits at the same level as the main deck, so the nose is a fixed structure and loading has to happen through a side door. On the 747 the cockpit is a distinct upper lobe, which means the nose cross-section below it is an uninterrupted hold that can be opened to the sky.

The consequence is loading by drive-through rather than by crane or belt-loader: a forklift or a dolly train can bring a ULD pallet to the open nose and push it straight into position on the main-deck rollers. On a ramp that is a genuine productivity difference, and it is the physical expression of the 747-400F's and 747-8F's main competitive advantage over the competition.

### Three loading levels

The 747 freighter loads at three levels, and each has a different access door and equipment:

- **Main deck** - driven straight in through the nose, or loaded through the left-hand side cargo door, using motor-driven rollers. This is where the big 96×125-inch pallets ride.
- **Forward, aft and lower holds** - loaded through conventional belt-loader doors, taking LD-1/LD-3 containers and smaller ULDs and bulk pallets.
- **Straddle/pallet build-up on the main deck** - combined loads are positioned against the structural constraints in the operator's [weight and balance manual](/boeing-747-internals/weight-and-balance-and-loading.html).

That layered arrangement is why a 747 freighter is still a commercially useful freighter in an era where most freight moved to converted widebodies without nose access: the full-width nose door is unique to the type.

### Related

- [Weight and balance and loading](/boeing-747-internals/weight-and-balance-and-loading.html)
- [Cargo hold fire protection](/boeing-747-internals/fire-detection-and-extinguishing.html)
- [The 747-400F freighters](/747-freighter-specifications.html)
- [Factory vs converted freighters](/features/factory-vs-converted-747-freighters.html)

## What happens when the 747's controls fail

*URL: https://www.boeing-747.com/boeing-747-internals/control-redundancy-and-backup-modes.html*

No reversionary modes, no manual elevator backup - instead, multiple hydraulic sources per surface, the stabilizer as a pitch reserve, and a mechanical load limiter that bypasses jammed cables.

The obvious question about a 747's flight controls is what happens when the hydraulics go. The obvious answer - that the aircraft reverts to some simpler mechanical mode - is **wrong for this aeroplane**, and the mistake is common enough to be worth correcting directly.

A Boeing study of the 747 primary flight control system, published through NASA, is blunt about it. Of the elevator system: *"No provision has been made for manual reversion."* And of the design as a whole: *"Manual reversion has been eliminated because of the high number of power sources, command paths, power actuators, and control surfaces. Such capabilities give the flight control system great failure tolerance."*

Mode A and Mode B reversionary control belongs to the 707, 720 and 727. The 747 has none of it. On the 747, all flight control surfaces are power actuated, and the strategy is to make a failure almost meaningless rather than to provide a degraded mode to fall back into.

### Two sources per surface, four different pairings

The [hydraulic system](/boeing-747-internals/hydraulic-systems.html) story is more specific than "four systems for redundancy." Each aileron, each rudder and each inboard elevator is driven by **two independent hydraulic sources**, and - this is the part that matters - the identity of those two sources **varies from surface to surface**, drawn from four different pairings of the four systems.

The result is that airplane control about all three axes - roll, pitch and yaw - is powered by all four hydraulic systems. No single system failure removes an axis. It costs you a particular surface. Lose hydraulic system 1 on a 747-400 and the left outboard elevator is inoperative; lose system 3 and the upper yaw damper stops working. Aileron, elevator and rudder authority all remain.

The study also notes what systems 2 and 3 are doing most of the time: in normal operation they have no assignment other than flight control. The two outboard engines are effectively dedicated to keeping the controls alive.

Each system can also be driven by a second pump - air-driven, fed from the engine bleed air or the APU, in parallel with the engine-driven pump. Hydraulic pressure is lost only when **both** power sources are unavailable.

### The one real weak point

There is an honest caveat in that same study, and it is the part that explains more than one accident:

The distribution of pressure for each hydraulic system is not redundant. A line breakage or component housing fracture will result in hydraulic fluid loss and subsequent pressure loss even though the power source may still be available.

Power generation is redundant. The plumbing carrying that power is not. That is exactly the mechanism behind **[Japan Air Lines Flight 123](/accidents_with_boeing_747s/jal-123.html)**, where a failed rear pressure bulkhead ruptured all four hydraulic lines at once - four redundant systems, one common path.

### What backs the controls up

With no reversionary mode, the 747's backups are specific mechanisms rather than a general fallback.

**The stabilizer can fly the aeroplane.** The study identifies inherent functional redundancy here: pitch control can be achieved by changing the incidence of the horizontal stabilizer, and stabilizer trim is used for pitch control in certain elevator failure modes. It is not a substitute elevator - authority is limited, the approach is flown faster, and the nosewheel steering is gone - but it is not nothing.

**Stabilizer trim has an emergency manual mode.** The trim system uses a ball-screw actuator driven by two hydraulic motors, and it offers **four modes of trim control: three electrical, and an emergency manual-mechanical mode.** The electrical modes are pilot manual-electric, copilot manual-electric and autopilot automatic, and the open-loop design is specifically built to prevent trim running away in the direction opposite to the one commanded.

**The aileron load limiter bypasses jammed cables.** The lateral system uses two separate runs of body control cables. The load limiter performs two functions: it provides an alternative system to move the ailerons if either body cable system jams, and it has a lost-motion feature that stops cable movement feeding back undesirably into the control wheels. If the left body cables jam, the pilot's wheel is inoperable and the **copilot's** wheel must be used; if the right body cables jam, the left wheel still works. The design accepts that you might have to change hands.

**Yaw damping is split.** Two identical yaw damper systems, one acting on the upper rudder and one on the lower, both countering dutch roll and working to keep the turn coordinated.

**The 747-400 locks out its outboard ailerons.** Above roughly 235 knots the outboard ailerons are locked in neutral, which prevents over-controlling them at high speed; the lockout is inhibited once the flaps are extended. It has an operational cost: with the lockout active on approach, the maximum crosswind component the aircraft may accept is reduced.

### The 747-8 went further

The [747-8](/boeing_747_family/747-8.php) added fly-by-wire outboard ailerons and spoilers, and with them a **Pitch Augmentation Control System** that senses an imminent tail strike and reduces elevator deflection automatically. It is a different kind of answer to the same question: rather than removing authority after a failure, the -8 commands it away in advance when the geometry demands it.

### Related

- [Flight controls](/boeing-747-internals/flight-controls.html) - the surfaces and how they are driven
- [Hydraulic systems](/boeing-747-internals/hydraulic-systems.html) - the four systems and their pumps
- [Autopilot and flight guidance](/boeing-747-internals/flight-guidance-and-autopilot.html) - the guidance on top of these controls
- [JAL 123](/accidents_with_boeing_747s/jal-123.html) - where the redundancy collapsed

## Ten doors, and why a 747 needs them

*URL: https://www.boeing-747.com/boeing-747-internals/doors-and-emergency-exits.html*

The 747 passenger deck has five pairs of floor-level plug doors - ten Type A exits - plus overwing escape exits and, on the -300/-400 stretched upper deck, additional upper-deck exits. A dedicated flight-crew escape hatch caps the cockpit.

Each side of the 747's main deck carries five big floor-level plug doors - ten Type A passenger exits in all. Later stretched-upper-deck models add their own exit pair up top, and a hatch over the cockpit gives the flight crew a path out.

| Key facts |  |
|---|---|
| Main-deck doors | Five per side (1 through 5) - ten Type A exits |
| Slides | Slide/rafts at doors 1, 2, 4 and 5 each side; overwing slides for wing-area seats |
| Upper deck | The -300/-400 stretched upper deck adds its own exit pair |
| Crew escape | Flight-crew hatch over the cockpit |

Certification limits a Type A exit (a floor-level opening of at least 42 × 72 in) to 110 seats. Ten of them is what lets a 747 legally carry 500 or more passengers.

Emergency hardware includes escape slides or slide/rafts on each side at doors 1, 2, 4 and 5, plus off-wing overwing escape slides for passengers seated near the wing - a configuration maintained from the 1969 original through the -2/300 stretch.


### Why ten exits

A 747 was certified to carry far more people than any previous airliner, and that capacity is only legal because of exit count. Each floor-level Type A opening - at least 42 by 72 inches - is limited by certification to a certain number of seats, and the 747's ten main-deck doors plus overwing and upper-deck exits are what allow a 400-plus seat cabin to be certified at all.

The stretched upper deck on the -300 and later models added a second passenger deck with its own exits, which is part of why those variants could be certified for high-density layouts that the earlier types could not.

### Escape hardware

Every passenger door on the type is armed with an inflatable slide, and slides at the outboard positions on each side are slide/rafts - a slide with an enclosed survival raft for over-water segments. The overwing exits get their own slides for the passengers seated over the wing. Off-wing slides are fitted because the wing is exactly where a door cannot be placed without interfering with the structure or the engines.

The [cargo-loading system](/boeing-747-internals/cargo-loading-system.html) page covers the main-deck side cargo door, and the [weight and balance manual](/boeing-747-internals/weight-and-balance-and-loading.html) determines which doors are used for the evacuation case.

### Related

- [Fuel system](/boeing-747-internals/fuel-system.html)
- [Hydraulic systems](/boeing-747-internals/hydraulic-systems.html)
- [Electrical system](/boeing-747-internals/electrical-system.html)
- [747-8 systems differences](/boeing-747-internals/747-8-systems-differences.html)

## Two screens that replaced a wall of gauges

*URL: https://www.boeing-747.com/boeing-747-internals/eicas-747-400.html*

EICAS (Engine Indication and Crew Alerting System) consolidated the 747-400's engine parameters and system alerts onto two of six display units, splitting messages into advisories, cautions and warnings. A Central Maintenance Computer records faults for mechanics.

On the 747-400, entire panels of mechanical gauges were replaced by EICAS - a pair of CRT displays showing engine parameters and every system alert the crew needs, ordered by urgency.

| Key facts |  |
|---|---|
| Full name | Engine Indication and Crew Alerting System |
| Displays | Main and auxiliary EICAS among the six display units (PFDs, NDs, EICAS ×2) |
| Alert levels | Advisory, caution and warning, shown as text and graphics |
| Maintenance | Central Maintenance Computer (CMC) records LRU-level faults |

EICAS cut the classic 747's dense instrument landscape down to six display units - the captain's and first officer's PFDs and NDs plus two EICAS screens. Because all six share display electronics, a single electronics unit failure blanks the whole deck, an important design constraint for the type.

The 747-400 was the first Boeing airliner with a centralised maintenance system: its Central Maintenance Computer gathers fault records from every system and shows mechanics exactly which line-replaceable unit failed - the ancestor of today's onboard diagnostics.

### Three levels of urgency

EICAS's defining idea is that it does not merely show data - it decides what matters and in what order. Alerts are separated into three levels so a crew can triage at a glance:

- **Advisory** - a condition to be aware of, no immediate action.
- **Caution** - a condition requiring attention and awareness of a possible consequence.
- **Warning** - a condition requiring immediate action.

Alongside the numeric engine indications, this tiered alerting is what let the 747-400 delete a large fraction of the classic 747's dedicated gauges and warning lights without losing the information the crew actually needs.

### The shared-electronics constraint

EICAS and the primary flight and navigation displays all sit on the same six display units, which share common display electronics. That concentration is efficient, but it introduces a design consideration: a failure of the shared electronics can affect multiple displays at once. This is precisely the kind of interaction the NTSB safety correspondence in the sources examined, since display-unit failure handling is about how the crew retains essential information when a shared resource is lost.

### The maintenance legacy

The 747-400 also pioneered centralised fault reporting on a Boeing airliner. Its Central Maintenance Computer collects fault records from across the aircraft and presents them to maintenance personnel, identifying the failed line-replaceable unit and the circumstances. This is the direct ancestor of the onboard diagnostics and health-monitoring systems that are now standard across the industry - the shift from "the crew saw a light" to "the aircraft recorded a fault signature."

### Related

- [Flight deck](/boeing-747-internals/flight-deck.html)
- [Flight guidance and autopilot](/boeing-747-internals/flight-guidance-and-autopilot.html)
- [Navigation and avionics](/boeing-747-internals/navigation-and-avionics.html)
- [Alerting and collision avoidance](/boeing-747-internals/alerting-and-collision-avoidance.html)

## The electrical system

*URL: https://www.boeing-747.com/boeing-747-internals/electrical-system.html*

Four engine-driven 90 kVA generators supplying 115 V 400 Hz AC, paralleled through a tie bus, with two APU generators and two external receptacles.

On the [747-400](/boeing_747_family/747-400.php), electrical power in flight comes from **four Integrated Drive Generators** - one on each engine, each rated at **90 kVA**.

### What an IDG is

An IDG packages three things: the generator itself, a **constant speed drive**, and an oil cooling system.

The constant speed drive is the interesting part. Aircraft AC systems run at **400 Hz**, and frequency depends on how fast the generator turns - but engine speed varies constantly with thrust. The CSD is a mechanical transmission that takes a varying input speed from the engine and delivers a constant output speed to the generator, so the frequency stays put whatever the throttles are doing.

Each IDG supplies **115 V, 400 Hz AC** to its own main bus.

### Paralleled, not isolated

Unlike most twin-engined aircraft, where each generator feeds its own isolated side, **the 747's generators operate in parallel**.

Each generator connects to its bus through a generator circuit breaker, and the main buses are joined to a **tie bus** - sometimes called the synchronising bus - through bus tie breakers. Any generator can therefore support any bus.

The advantage is flexibility and load sharing: with four sources on a common tie, the loss of one is absorbed with no reconfiguration by the crew. The cost is complexity, since paralleled generators must be synchronised in frequency and phase before they can be tied together.

### On the ground

Two **APU generators**, each also rated at 90 kVA, and **two external power receptacles**, likewise 90 kVA each. That is enough to run the aircraft at the gate - lighting, galleys, air conditioning packs and avionics - without any engine running.

Two receptacles rather than one matters at a large aircraft's power draw; one ground cart is often not enough.

### Why 400 Hz

Domestic mains runs at 50 or 60 Hz. Aircraft use 400 Hz for one dominant reason: **transformers and motors get smaller as frequency rises**. At 400 Hz the magnetic components can be a fraction of the size and weight of their mains-frequency equivalents.

The trade-off is that 400 Hz suffers greater losses over distance - irrelevant in an aircraft, where the longest cable run is a few tens of metres.

### Where it connects to everything else

Electrical generation is per engine for the same reason [hydraulic power](/boeing-747-internals/hydraulic-systems.html) is: so that losing an engine costs you one source of each rather than a whole category. The electric demand pumps in the hydraulic system depend on this supply, which is why the two are designed together rather than separately.

### Related

- [747 systems](/boeing-747-internals/)
- [Hydraulic systems](/boeing-747-internals/hydraulic-systems.html)
- [E-enabled capabilities of the 747-8](/everything-about-the-boeing-747-8/e-enabled-capabilities-of-the-boeing-747-8.html)

## Engines through the generations

*URL: https://www.boeing-747.com/boeing-747-internals/engines.html*

The 747 made the high-bypass turbofan a commercial reality, and engine choice turned out to matter as much commercially as technically.

The 747 could not have existed without the high-bypass turbofan, and the high-bypass turbofan would not have matured as quickly without the 747. The two arrived together, and the first attempt was difficult.

### The generations

| Variant | Engine options |
|---|---|
| [747-100](/boeing_747_family/747-100.php) | Pratt & Whitney JT9D |
| [747-200](/boeing_747_family/747-200.php) / [-300](/boeing_747_family/747-300.php) | JT9D, General Electric CF6, Rolls-Royce RB211 |
| [747-400](/boeing_747_family/747-400.php) | PW4000, CF6-80C2, RB211-524G/H - 56,500 - 63,300 lbf |
| [747-8](/boeing_747_family/747-8.php) | General Electric GEnx-2B only - 66,500 lbf |

### Why bypass ratio matters

A turbojet produces thrust by throwing a small mass of air backwards very fast. A high-bypass turbofan throws a **much larger mass of air backwards more slowly**, most of it bypassing the core entirely.

For a given thrust that is far more efficient, and much quieter, because jet noise rises steeply with exhaust velocity. It is the single reason a 747 can cross an ocean economically, and the reason it is not deafening.

It also explains why [thrust reversers](/videos/awesome-demonstration-of.html) on a 747 redirect the cold bypass air rather than the hot core exhaust: that is where most of the thrust is.

### The JT9D's difficult start

The first 747s were nearly grounded by their engines. The JT9D was the first high-bypass turbofan on a commercial airliner and it was rushed to meet the aircraft's schedule.

Early engines suffered **ovalisation** - the casing distorting out of round under thermal and mechanical load, causing the blade tips to rub. Pan Am's first aircraft spent time parked awaiting engines, with concrete blocks hung on the pylons to keep them level.

Later JT9D models resolved it, and the CF6 and RB211 alternatives from the [747-200](/boeing_747_family/747-200.php) gave airlines a way out.

### Engine choice as a commercial weapon

This turns out to be one of the clearest patterns in the 747's sales history.

The [747-100](/boeing_747_family/747-100.php) was a Pratt & Whitney aircraft: **168 built**. The [747-200](/boeing_747_family/747-200.php) could be bought with any of three manufacturers' engines: **393 built**.

Airlines maintain engines, not just airframes. Being able to buy a 747 that shared a powerplant with the rest of the fleet removed a barrier that had kept several carriers out entirely.

The [747-8](/boeing_747_family/747-8.php) reversed it. An exclusivity agreement between GE and Boeing meant the **GEnx-2B was the only engine available** for at least ten years. 155 were built.

### The GEnx-2B

Derived from the 787's GEnx, with two changes for the 747: a **smaller fan diameter** to fit under a four-engined wing, and the restoration of **bleed air**, which the 787's more-electric architecture does not provide.

It burns about **16 percent less fuel per seat** than the 747-400's engines, and its chevron-edged nacelles are a large part of why the 747-8's [noise footprint is around 30 percent smaller](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html).

### The fifth pod

Every 747 has a hardpoint on the left wing, between the fuselage and the inboard engine, for **ferrying a spare engine** to an aircraft stranded without one. The engine is carried inert, usually with the fan removed and the inlet faired over. [More on that here](/blog/quantas-straps-an-extra.html).

### Related

- [747 systems](/boeing-747-internals/)
- [Engines optimised for the 747-8](/everything-about-the-boeing-747-8/engines-optimized-for-the-7.html)
- [The GEnx-2B explained](/videos/boeing-747-8-engine-overvie.html)

## Zones, halon, and the lesson of TWA 800

*URL: https://www.boeing-747.com/boeing-747-internals/fire-detection-and-extinguishing.html*

The 747 carries fire detection and extinguishing for all four engines, its APU and its cargo compartments, with halon-type bottles controlled from the flight deck. After TWA Flight 800, the fleet also gained fuel-tank inerting systems to prevent centre-tank vapour explosions.

Fire protection on the 747 is divided into zones - each engine, the APU, the cargo holds and the toilets - each with its own detection and extinguishing hardware, all managed from a single fire-control module on the flight deck.

| Key facts |  |
|---|---|
| Zones covered | All four engines, the APU, cargo holds, toilets |
| Extinguishing agent | Halon-type bottles discharged from the flight deck |
| Cargo compartments | Classed A/B/C; Class C holds must have detection plus automatic extinguishing |
| Fuel-tank safety | Fleet gained inerting after TWA Flight 800 |

The 747's integrated fire-control installation covers its four engines, the APU and the main cargo compartment from one module. Cargo compartments are classed by accessibility: a Class C hold, which cannot be reached in flight, must have both fire detection and fully automatic extinguishing.

TWA Flight 800, a 747-100 destroyed in 1996 when fuel vapour in a nearly empty centre-wing tank ignited, transformed the industry's approach. Subsequent 747s carry **fuel-tank inerting** hardware to keep oxygen out of tank ullage, and the 747-400's master minimum equipment list includes a dedicated inert-gas-system page (ATA 47).


### Zoned by function

The 747's fire protection is divided into zones, each with its own detection sensors and extinguishing bottles, all supervised from a single fire-control module on the flight deck. The zones are the four engine nacelles, the APU compartment, the cargo holds, and the cabin including the lavatories.

Engine and APU zones use a combination of linear heat-detection and overheat elements, because those areas have characteristic, localised overheating signatures. Cargo holds, where fires can be smouldering and diffuse, use different detection. The lavatory zones are monitored and extinguished separately, because a lavatory fire is common, usually minor, and must not be allowed to escalate.

### Cargo compartment classification

Cargo holds are classified by how accessible they are in flight, and the classification sets the required protection. A Class C compartment - one that cannot be reached in flight to fight a fire - must have both fire detection and fully automatic extinguishing. This is the strictest category, and it is the reason the loading manual's airflow requirement above stacked containers, discussed in [weight and balance and loading](/boeing-747-internals/weight-and-balance-and-loading.html), exists: smoke detection only works if air can circulate.

### The TWA 800 lesson

TWA Flight 800, a 747-100 destroyed in 1996 after fuel vapour in a nearly empty centre-wing tank ignited, changed the industry approach to fuel-tank safety. The investigation found that the empty centre tank's ullage could accumulate vapour, and the ignition source was never conclusively established. The result was a new generation of requirements, implemented across the fleet, for centre-wing tank inerting systems that keep the oxygen content of the tank ullage below the level where fuel vapour can burn. Later 747s, including the 747-400, carry this hardware, and the type's minimum equipment list includes a dedicated inert-gas-system item.

### Related

- [Fuel system](/boeing-747-internals/fuel-system.html)
- [Hydraulic systems](/boeing-747-internals/hydraulic-systems.html)
- [Electrical system](/boeing-747-internals/electrical-system.html)
- [747-8 systems differences](/boeing-747-internals/747-8-systems-differences.html)

## Flight controls and high-lift devices

*URL: https://www.boeing-747.com/boeing-747-internals/flight-controls.html*

Split inboard and outboard ailerons, spoilers, triple-slotted trailing edge flaps and Krueger leading edge devices - and the 747-8's fly-by-wire changes.

The 747 wing has to do two contradictory things: cruise efficiently at Mach 0.85, and get a 400-tonne aircraft airborne and back down at speeds a runway can accommodate. Almost every complication in its flight controls comes from that conflict.

### Roll: two sets of ailerons

The 747 carries **inboard and outboard ailerons** on each wing, and they are not both used all the time.

At **low speed** both operate. At **high speed** the outboard ailerons are locked out and roll is handled by the inboard ailerons and spoilers alone.

The reason is structural. An aileron at the wingtip has a long lever arm - excellent for roll authority at low speed, but at high speed the force it generates can twist the wing in the opposite direction to the roll being commanded, a phenomenon called **aileron reversal**. Locking out the outboard surfaces once the wing is loaded avoids it.

### Spoilers

Panels on the upper surface that spoil lift when raised. They serve three distinct jobs:

- **Roll assistance** - rising on the descending wing to help the ailerons.
- **Speedbrakes** - raised symmetrically in flight to increase drag and slow down or descend.
- **Ground spoilers** - deployed fully on touchdown to dump lift, putting the aircraft's weight onto the wheels so the brakes can work. Without them the wing keeps flying and the brakes have very little to grip with.

### Trailing edge: triple-slotted flaps

The classic 747 wing uses **triple-slotted Fowler flaps** - a flap made of three separate segments that both extend rearward, increasing wing area, and deflect downward, increasing camber. The slots between segments let high-pressure air from beneath the wing energise the flow over the top, delaying the stall.

They are mechanically elaborate and heavy, and the housings for their mechanisms are the "canoes" visible under the wing.

The [747SP](/boeing_747_family/747-100sp.php) dispensed with them entirely: being far lighter, it managed with **single-slotted flaps** and no under-wing canoes at all.

The [747-8](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html) went to **double-slotted inboard and single-slotted outboard** flaps, with redesigned flap tracks and fairings - simpler, lighter and quieter than the classic arrangement while achieving the same job on a better wing.

### Leading edge: Krueger flaps

Along the leading edge sit **Krueger flaps**, which hinge down and forward from the underside to increase camber for takeoff and landing.

The 747 uses two types: rigid **Krueger flaps inboard**, and **variable camber Kruegers** outboard, which curve as they deploy.

There is a deliberate aerodynamic reason for treating the inboard section differently: it is arranged so the **inboard wing stalls first**. That keeps the outboard wing - where the ailerons are - flying, so the aircraft retains roll control as it approaches the stall instead of dropping a wing.

### What the 747-8 changed

The [747-8's new wing](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html) introduced **fly-by-wire spoilers and outboard ailerons**, replacing mechanical signalling with electrical.

Beyond saving weight, that made **manoeuvre load alleviation** possible - a system pioneered on the 787 which redistributes lift across the wing during unusual flight conditions, reducing the load carried by the outboard section. Because the wing never sees the peak outboard loads it otherwise would, Boeing built it lighter, saving about **1,400 lb**.

The 747-8 also uses **aileron droop**: when the flaps extend, the ailerons deflect down and act as additional high-lift devices, improving low-speed performance and cutting noise.

### Related

- [747 systems](/boeing-747-internals/)
- [Hydraulic systems](/boeing-747-internals/hydraulic-systems.html)
- [The 747-8 wing](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html)

## From three crew to two

*URL: https://www.boeing-747.com/boeing-747-internals/flight-deck.html*

The 747-400's two-crew glass cockpit removed the flight engineer, the single biggest operating-cost change in the aircraft's history.

Every 747 up to and including the [747-300](/boeing_747_family/747-300.php) was a **three-crew aircraft**: two pilots and a flight engineer, the latter facing a sidewall panel of several hundred switches, gauges and circuit breakers managing fuel, electrics, hydraulics, pressurisation and the engines. The [classic flight-engineer station](/boeing-747-internals/flight-engineer-station.html) was a full-time job in its own right.

The [747-400](/boeing_747_family/747-400.php) removed that seat, and it is the single most consequential change in the aircraft's commercial history.

### What replaced the flight engineer

Not automation of the flying - automation of the **monitoring**.

The -400 introduced a **glass cockpit**: six CRT displays replacing the mass of individual instruments, with systems monitoring themselves and alerting the crew only when something needs attention. What had been a full-time job of watching gauges became a set of systems that watch themselves and speak up. The heart of it was **[EICAS](/boeing-747-internals/eicas-747-400.html)**, the engine-indicating and crew-alerting system that put the flight engineer's job on two screens.

### Why it decided the -300's fate

The [747-300](/boeing_747_family/747-300.php) entered service in 1983. Boeing launched the 747-400 in 1985, and the -300's production run effectively ended: **81 were built, against 694 -400s**.

The two aircraft carried a similar number of passengers over a similar distance. But one needed a third qualified person on the flight deck for every sector, for the whole 25-year life of the aircraft. For an airline running long-haul routes, that is an enormous recurring cost, and no cabin refinement offsets it.

An airline choosing between them in 1986 was not really choosing between two aircraft.

### The type rating

The [747-8](/boeing_747_family/747-8.php) took the opposite lesson. Its flight deck uses **787-derived display technology**, but Boeing deliberately kept it close enough to the 747-400's that both share a **common type rating**.

That means a pilot qualified on the -400 can fly the -8 after a short differences course rather than a full type conversion. For an airline operating both, that is the difference between a manageable transition and an expensive one - and it was a significant part of the 747-8's sales case.

There is a [dedicated page on the 747-8 flight deck](/everything-about-the-boeing-747-8/boeing-747-8-flight-deck.html) in the reference section.

### Where it sits

The flight deck's position above the main deck is the reason the 747 has a hump at all - it was put there so the **nose could hinge upward** for freight loading. See [the 747-100](/boeing_747_family/747-100.php) for how that decision shaped the whole aircraft.

### Related

- [747 systems](/boeing-747-internals/)
- [The classic flight-engineer station](/boeing-747-internals/flight-engineer-station.html)
- [747-400 EICAS](/boeing-747-internals/eicas-747-400.html)
- [Navigation and avionics](/boeing-747-internals/navigation-and-avionics.html)
- [The 747-8 flight deck](/everything-about-the-boeing-747-8/boeing-747-8-flight-deck.html)
- [The 747-400](/boeing_747_family/747-400.php)

## The third crew member and the panel that needed one

*URL: https://www.boeing-747.com/boeing-747-internals/flight-engineer-station.html*

Classic 747-100/-200/-300s were certified for a three-person crew. The flight engineer, seated sideways at the rear of the deck, managed fuel, electrics, pressurisation, hydraulics and air-conditioning panels that demanded full-time attention - the -400's automation later eliminated the seat.

Behind the two pilots in a classic 747, a third crew member sat sideways before a wall of panels - fuel pumps, electrical buses, pressurisation, hydraulics and air conditioning. That flight engineer was not optional; the job was too busy for two.

| Key facts |  |
|---|---|
| Certified crew | 3 (pilot, co-pilot, flight engineer) on the classic 747 |
| Duties | Fuel management, electrical, pressurisation, hydraulics, air conditioning |
| Position | Sideways at the rear of the flight deck |
| End of the role | The 747-400's glass cockpit removed the seat and cut panel density by about two-thirds |

The classic 747 handed the flight engineer a stack of discrete, high-workload tasks: operating boost pumps and filter valves, managing fuel jettison, cycling electrical buses, and monitoring the air-conditioning and pressurisation panels.

The 747-400 dispensed with the flight engineer entirely, consolidating everything onto EICAS screens the two pilots could supervise, and shrinking the number of switches, lights and gauges by roughly two-thirds. It was the single biggest crew-change between the classic and modern 747s.


### The station itself

The flight engineer's position was one of the 747's most recognisable interior features: a narrow seat facing inboard, flanked by stacked panels, with the overhead between the flight deck and the main cabin. The panels were organised by system rather than by flight phase, so the engineer worked vertically down a column - fuel on one side, electrical on the other, with pressurisation, hydraulics and air conditioning within reach.

The layout is why the role existed. On the classic 747 those systems were largely electromechanical and hydraulic, each needing periodic attention: boost pumps started and stopped, cross-feeds configured, filter bypasses checked, bleed and pack setpoints managed, generators brought on and off in sequence. Two pilots flying the aircraft simply could not also manage that workload, so a third crew member did, and the certification assumed it.

### Why the -400 removed it

The 747-400 did not eliminate the engineer's work; it automated it. Electrically controlled fuel, electrical and bleed systems, automatic generator management, and above all the EICAS and flight management computers, took discrete actions that previously demanded constant attention and turned them into automatic sequences with failure annunciation.

That let Boeing certify the -400 for a two-person crew. The panel behind the pilots was deleted, and the [navigation and avionics](/boeing-747-internals/navigation-and-avionics.html), [EICAS](/boeing-747-internals/eicas-747-400.html) and [flight guidance](/boeing-747-internals/flight-guidance-and-autopilot.html) systems that replaced the station are covered on their own pages. It remains the single largest crew-composition change in 747 history, and the direct ancestor of the two-pilot flight deck standard across the industry.

### Related

- [Fuel system](/boeing-747-internals/fuel-system.html)
- [Hydraulic systems](/boeing-747-internals/hydraulic-systems.html)
- [Electrical system](/boeing-747-internals/electrical-system.html)
- [747-8 systems differences](/boeing-747-internals/747-8-systems-differences.html)

## How the 747 flies itself

*URL: https://www.boeing-747.com/boeing-747-internals/flight-guidance-and-autopilot.html*

Three flight control computers, two flight directors and a mechanically-driven autothrottle, working together through the Mode Control Panel above the glareshield.

A 747 is not simply equipped with an autopilot. It has a whole **automatic flight system** - a set of computers, two independent flight directors and an autothrottle that share a single set of knobs in the glareshield, and the whole arrangement exists so that the crew spends its attention on flying the aeroplane rather than on moving surfaces.

### The Mode Control Panel

Everything the crew commands sits in the **MCP**, in the glareshield between the two pilots. It is arranged in labelled blocks: autothrottle, speed, heading, vertical speed, altitude, approach, and the autopilot master switches.

Engaging the autopilot is deliberately a two-hand proposition. Pushing one of the three A/P ENGAGE switches commands **CMD**, but the mode that engages is whatever the flight directors and mode switches have already selected. Push the switch with the flight directors off and you get a basic mode - vertical speed in pitch, and heading hold or attitude hold in roll, depending on how much bank angle is on the aircraft when you do it.

The **disengage bar** spanning the panel is the emergency countermeasure. Pushing it down trips all three autopilots at once and blocks them from re-engaging until it is lifted. A pilot can also disconnect a single channel by pulling the control column backwards against its feel, and the EICAS displays `AUTOPILOT DISC` whenever any of this happens.

### Two flight directors, three autopilots

The two **flight directors** are the part that computes the guidance. They do not move anything; they draw the little command bars on the primary flight displays showing where the aircraft ought to be pointing.

The distinction matters for understanding the redundancy. Two flight directors can be driving guidance, and a single autopilot channel can fly the aircraft from that guidance. That is why the original 747-100, -200 and -300 - which had two autopilots, channels A and B - could be used for an automatic landing only with both channels engaged.

The 747-400 and 747-8 added a third channel, and that extra channel buys a specific certification level, expressed on the displays as:

| Annunciation | Meaning |
| --- | --- |
| `LAND 3` | All three autopilots engaged. Fail operational - a single fault cannot prevent an automatic landing |
| `LAND 2` | Redundancy reduced to two channels. Fail passive - a single fault cannot cause a significant deviation |
| `NO AUTOLAND` | The system cannot make an automatic landing at all |

The distinction between the first two is a real engineering line, not a label. A UK investigation of an automatic landing on a 747-236B found the A channel dropped out by itself at 1,000 ft radio height; the approach continued and landed normally on two channels, which is exactly the case `LAND 2` is designed to cover. The same report describes how the redundancy actually works in service: during an automatic landing the output commands of all three channels are continuously compared and **the mid value is used** to control the aircraft, so a single channel that strays is outvoted rather than obeyed.

### What happens in the flare

At 1,000 ft radio height, with the localiser and glideslope captured, something changes hands. Control of the aircraft passes from the pitch and roll computers to the **Landing Control Logic Units**, which take over the approach, landing and automatic flare using radio height and its rate of change.

At 50 feet the `FLARE` indication on the flight mode annunciator turns from white to green, confirming the flare has begun. That same investigation found a real limitation: at 50 feet, with the aircraft nearly stopped, the control column could move backwards when it should not have, producing an unexpected nose-down pitch rate during the flare. The autopilot was passed for a triple-autopilot landing after investigation and modification.

One asymmetry is built in deliberately. Below 200 feet radio height a change from `LAND 3` to `LAND 2` is **not** annunciated, because there is no time left to act on the information.

### The autothrottle is mechanical

The autothrottle is not a fly-by-wire system, and this is a detail that surprises people. It works by **engaging a clutch to move the throttle levers** - the levers are physically driven, and they move in the cockpit where both pilots can see them.

Its modes are the first column of the flight mode annunciator:

| Mode | What it does |
| --- | --- |
| `SPD` | Holds the commanded airspeed or Mach number from the MCP or the flight management computer |
| `THR REF` | Holds the thrust reference displayed on the EICAS |
| `THR CLB` | The climb rating, selected before the thrust reduction altitude |
| `IDLE` | Pulls the levers back to idle, normally at the top of descent; then `HOLD` |
| `HOLD` | The clutch is released; the crew has the levers and the current thrust is maintained |

`HOLD` is what makes the system safe to touch. In `SPD` the levers are held where the autothrottle put them, but in `HOLD` a pilot can move them freely.

Because the levers are real, the crew always has a way out. Moving the levers to idle disconnects the autothrottle. The A/T ARM switch also disconnects it automatically if more than one engine is inoperative.

### What a mode failure does

Failures are handled according to scope, and the crew is told which case applies. A failure affecting **only the active mode** leaves the autopilot engaged in an attitude-stabilising mode, with an **amber line struck through that mode's annunciation** on the primary flight display and an `AUTOPILOT` caution on the EICAS. A failure affecting **all** modes results in an autopilot disengagement with an aural warning.

That is the design in miniature: degrade to something simpler but keep flying, and make the degradation visible, rather than failing silently.

### Related

- [EICAS](/boeing-747-internals/eicas-747-400.html) - where the warnings and thrust references appear
- [Flight controls](/boeing-747-internals/flight-controls.html) - the surfaces the autopilot commands
- [Flight deck](/boeing-747-internals/flight-deck.html) - what the crew sees
- [747 systems](/boeing-747-internals/)

## The two black boxes

*URL: https://www.boeing-747.com/boeing-747-internals/flight-recorders-and-data-acquisition.html*

A cockpit voice recorder for the sounds in the cockpit, a flight data recorder for the numbers, and a certification requirement that no single failure can disable both.

The 747's accident pages in this section are largely written from recorder evidence - the altitude, the Mach number, the engine readings at the moment things went wrong. Those numbers come from two recorders that most people know only as the black box, and which are actually quite different machines doing quite different jobs.

### Two recorders, not one

The **cockpit voice recorder** captures the aural environment of the flight deck: radio transmissions, conversations between the flight crew, and the sounds of the aircraft itself. Its cockpit area microphone is normally mounted on the overhead panel between the two pilots.

That ambient sound channel is what makes the CVR worth more than a transcript. An investigator can often establish a great deal from sounds alone - engine noise changing, a stall warning, the extension or retraction of the landing gear, various clicks and pops. From those, parameters like engine speed and system state can be inferred, along with when each event occurred.

The **flight data recorder** does the numbers instead. By regulation, newly manufactured aircraft must monitor at least **eighty-eight** important parameters, including time, altitude, airspeed, heading and aircraft attitude. Modern recorders go far beyond that. The range includes anything from flap position to autopilot mode to smoke alarms, and a capable installation records well over a thousand characteristics.

Airlines typically also fit a **quick access recorder**, which is not a legally required item but a company-owned equivalent used for routine monitoring, training and trend analysis. The data is the same kind of data, kept for a different purpose.

### The 747s span both recorder generations

The technology changed across the 747's fifty-year production run, and the regulations followed. The earliest 747s recorded on **quarter-inch magnetic tape**; later aircraft use digital technology and memory. The FAA has been phasing tape out through both mandates and voluntary effort, and the current approval guidance points to modern solid-state recorders meeting EUROCAE ED-112A crash-protection standards. Tape needed an hourly replacement and a calendar check on its thermal protection capsule; solid-state recorders need neither.

### What the recorders have to survive

This is the part that determines where they are fitted. A recorder that survived only the initial impact would be of little use, so the survivability requirements are severe and identical for both recorders:

| | Flight data recorder | Cockpit voice recorder |
| --- | --- | --- |
| Recording time | 25 hours continuous | 30 minutes, or 2 hours for solid-state digital |
| Channels or parameters | 18 to 1,000+ | 4 |
| Impact tolerance | 3,400 g at 6.5 ms | 3,400 g at 6.5 ms |
| Fire resistance | 1,100 °C for 30 minutes | 1,100 °C for 30 minutes |
| Water pressure | Submerged to 20,000 ft | Submerged to 20,000 ft |
| Underwater locator | 37.5 kHz, battery shelf life 6 years or more, 30-day operation on activation | Same |

Because of all of that, the recorders are installed in the most survivable part of the aircraft - the tail. The underwater locator beacon, with its decades of shelf life, is what allows them to be found when the aircraft comes down in water.

### Two rules that exist specifically to defeat one failure

The certification requirements contain a pair of conditions that are easy to skim past and are really the whole point of fitting two recorders:

- **No single electrical failure external to the recorder may disable both the CVR and the FDR.**
- **They must be in separate containers.**

Together those mean a single wiring fault, a single circuit breaker or a single bus problem cannot silence both boxes. The regulation also allows a combination unit, but only with a separation requirement attached - and where two combination units are fitted instead, the unit satisfying the CVR requirement may be located near the cockpit, while the FDR requirement still demands a second, separate container.

This is the same design philosophy as the rest of the 747, seen from a different angle. Redundancy only works if the redundant paths are genuinely independent.

### What happens to the data afterwards

After an accident, both recorders are removed from the site and taken to the NTSB. A CVR committee - the Safety Board, the FAA, the operator, the airframe and engine manufacturers and the pilots' union - listens to the recording and produces a written transcript. Air traffic control recordings with their time codes are used to line that transcript up against real time, and sound analysis software gives finer timing on critical events.

The handling of the audio is deliberately constrained. Congress requires that no part of a cockpit voice recording be released, because of what the crew said in the last minutes of those flights. The transcript of the pertinent portions is what reaches the public, usually at a public hearing.

### Related

- [EICAS](/boeing-747-internals/eicas-747-400.html) - the system whose messages the recorders capture
- [Autopilot and flight guidance](/boeing-747-internals/flight-guidance-and-autopilot.html) - a recorded parameter that explains a great many accident sequences
- [Accidents involving the Boeing 747](/accidents_with_boeing_747s/)
- [747 systems](/boeing-747-internals/)

## Keeping 747 wings from shaking themselves apart

*URL: https://www.boeing-747.com/boeing-747-internals/flutter-and-load-alleviation.html*

From mass-balanced control surfaces on the early 747s to the 747-8 freighter's Outboard Aileron Modal Suppression System, the first active flutter control approved on a commercial airliner.

Every 747 wing is built to a speed it must never exceed, and the reason is flutter. Flutter is a self-sustaining oscillation: at a critical speed, the aerodynamic forces on a flexible wing begin feeding energy into the wing's own bending and torsion faster than the structure can dissipate it, and the amplitude grows until something breaks. Getting that speed above the aircraft's dive speed, with margin, is one of the hardest problems in aeroplane design.

There are two ways to fight it, and the 747's fifty-year history runs from the first to the second.

### The passive answer: mass, stiffness and balance

The traditional approach adds no electronics at all. FAA guidance on flight stability and flutter describes the three levers for a wing: **torsional flexibility**, **aileron balance**, and **aileron free play**, each with a limit expressed as a function of limit dive speed.

The subtle part is the aileron. A control surface that is not exactly balanced will try to rotate about its hinge in response to its own inertia, and that rotation changes the aerodynamics in a way that can drive the very mode that caused it. Balance is characterised by the ratio of the aileron's product of inertia about the wing's fundamental bending node line and its hinge line, to its own mass moment of inertia about the hinge - a parameter with a hard limit that tightens as dive speed rises.

Where the flutter mode is a simple rotation, a single concentrated ballast weight is the most efficient fix. But real flutter modes are rarely simple, and a distributed ballast that works against every mode is safer, mirroring the spanwise weight distribution of the surface. The guidance is blunt about what happens next: in most cases the flutter speeds of control surfaces are governed largely by the mass balance weights and their distribution, and improving one mode frequently degrades another.

There is also a maintenance warning buried in that document. Balance weights are attached to surfaces that flex in vibration, so they are fatigue-limited, and water, ice or dirt collecting inside a control surface can silently change its balance. Sealing and proper drain holes are a flutter requirement, not housekeeping.

### The 747 got there actively, and first

The early 747s did not have to invent a lighter wing, so the passive route was the practical one - but the type was also the first production airliner to carry an active control feature of this kind. NASA research on active flutter suppression notes that a ride quality improvement system *"was developed and certified for the Boeing 747 subsonic transport airplane"* as the clearest early example of an active control system entering production.

A later NASA study of a 747 derivative worked through the same idea in detail, using the **outboard ailerons** as the control surface. Two functions were separated:

- **Maneuver load control** reduced the loads the wing has to survive in a turn. Deflecting the ailerons shifts the lift distribution inboard, which reduces the wing bending moment. That produces a nose-up pitching moment, and because the horizontal tail has to balance it, reducing the tail load cuts the wing design loads further. A smaller wing box follows.
- **Gust load alleviation** attacked the other half of the problem, using wing acceleration feedback to the same ailerons, plus **elastic mode suppression** of the first wing bending mode.

The control law filtered a single signal to the outboard ailerons and split it between the two functions, with the gains reduced once the flaps were extended. A wing accelerometer mounted in the outboard aileron path provided the feedback. One finding is notable for what it did *not* require: resizing the wing box for the reduced maneuver loads needed **no added flutter material at all**.

### The 747-8 crosses the line

On the [747-8](/boeing_747_family/747-8.php) the logic ran in reverse. The [new 747-8 wing](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html) is a longer, more efficient structure, and the **Maneuver Load Alleviation and Structural Technology** system uses fly-by-wire outboard ailerons and spoilers to unload it - worth roughly 1,400 lb of structural weight, which was the point of designing the wing with the system in mind from the start.

Doing that on a freighter exposed a problem that had never before been certified. The 747-8F exhibits an aeroelastic mode that is **self-excited and does not completely damp out** after a disturbance - a sustained oscillation, or **limit cycle oscillation**. It exists only for a limited set of fuselage payload and fuel combinations inside the otherwise normal flight envelope. The mode is primarily symmetric: a **2.3 Hz** sustained oscillation of the wings, engine pylons and fuselage.

The problem was that with that oscillation present, compliance with the flutter and control system requirements **could not be shown**. Passive methods were not enough.

### OAMS, and the first active flutter control approval

Boeing's answer was the **Outboard Aileron Modal Suppression System** - OAMS - added to the 747-8F's fly-by-wire roll control system to damp the oscillation. It was, in EASA's words, *"the first time the use of an active flight control system to control flutter is approved on a commercial transport aeroplane."*

Because the approach was that new, it needed its own certification basis, and EASA Special Condition C-18 is unusually specific about what had to be demonstrated:

- With **OAMS inoperative**, the sustained oscillation must be shown to be *stable* throughout the nominal aeroelastic stability envelope and the whole flight envelope - including disturbances **above** the sustained amplitude of the oscillation. A flutter mode that is suppressed but goes unstable when kicked harder is not acceptable.
- With OAMS **operative**, the aeroplane must remain safe, stable and controllable, and the loads from the oscillation must have a negligible effect on structure and systems, including wear, fatigue and damage tolerance. Compliance had to include icing, manufacturing variations, spare engine carriage, engine-removed ferry flights, and MMEL items.
- After any failure that leaves the oscillation present, it must **be stable and decay** to a limited amplitude once the disturbance is removed, must not interfere with the crew's ability to read instruments or fly the aeroplane, and must not be confused with ordinary stall or high-speed buffet.

One requirement in that document stands out for its effect on operations: **no MMEL dispatch is allowed with the OAMS system inoperative.** No interval, no deferred rectification, no dispatch. It is the most absolute handling consequence of any system on the 747, and it is a direct measure of how seriously the limit cycle oscillation was taken.

### Related

- [Flight controls](/boeing-747-internals/flight-controls.html) - the ailerons doing the work
- [The 747-8 new wing](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html) - the structure OAMS protects
- [747-8 systems differences](/boeing-747-internals/747-8-systems-differences.html)
- [Engines](/boeing-747-internals/engines.html) - pylons participate in the mode

## How Much Fuel Does a Boeing 747 Hold?

*URL: https://www.boeing-747.com/boeing-747-internals/fuel-system.html*

Boeing 747 usable fuel capacity ranges from 48,445 US gallons on a representative 747-100 to 63,240 US gallons on a two-body-tank 747-400ER; tank arrangement varies by variant.

import FuelSystemVisuals from '../../../components/FuelSystemVisuals.astro';
import FuelConverter from '../../../components/FuelConverter.astro';

The **Boeing 747 fuel system** is not simply a collection of large tanks. It is a
load-management system, an engine-feed system, a refuelling network, a balance-control
system and - on many variants - a fuel-jettison system. Its job is to deliver uninterrupted
fuel to four engines while keeping the aeroplane within structural and centre-of-gravity
limits.

The architecture evolved from the flight-engineer-controlled 747-100 to the computer-assisted
747-400 and 747-8, but the basic idea remained remarkably consistent: most fuel is carried in
the wing, four main tanks are associated with four engines, and a crossfeed manifold provides
redundancy and flexibility.

**Short answer:** a 747 normally uses centre fuel before progressing toward one main tank
feeding each engine. Transfer systems move reserve or auxiliary fuel into usable feed tanks,
while crossfeed valves allow the crew or automatic logic to change which tanks supply which engines.

### On this page

- [Fuel-system diagrams](#fuel-visuals-title)
- [Tank layout and structure](#fuel-tank-layout-and-structure)
- [How fuel reaches the engines](#how-fuel-reaches-the-engines)
- [Transfer, balance and trim](#transfer-balance-and-trim)
- [Refuelling, defuelling and venting](#refuelling-defuelling-and-venting)
- [Fuel jettison](#fuel-jettison)
- [Fuel quantity and cockpit controls](#fuel-quantity-and-cockpit-controls)
- [Fuel capacity by 747 variant](#fuel-capacity-by-boeing-747-variant)
- [What changed on every major variant](#how-the-fuel-system-changed-by-747-variant)
- [Fuel-tank safety after TWA 800](#fuel-tank-safety-and-the-lessons-of-twa-flight-800)
- [Videos](#video)
- [Frequently asked questions](#faq-heading)

### Fuel tank layout and structure

The 747's principal fuel tanks are **integral tanks**. Their walls are not removable metal
containers inside the wing; the sealed wing structure itself forms the tank. Ribs and spars
divide that volume into bays, while access panels allow inspection and maintenance.

The common 747 arrangement includes:

- **Four main tanks**, numbered 1 to 4 from left to right, broadly aligned with engines 1 to 4.
- **A centre wing tank (CWT)** in the wing centre section through the fuselage.
- **Reserve tanks** in the outboard wing region. Naming differs between generations, but their
  function is to transfer fuel into the main-tank system rather than feed an engine directly.
- **Two surge tanks** near the wing tips. These are vent collectors, not normal mission-fuel tanks.
- **Optional or model-specific auxiliary tanks**, including horizontal-stabilizer fuel on some
  747-400 passenger configurations and cargo-hold body tanks on the 747-400ER.

### Why carry the fuel in the wing?

Putting fuel in the wing saves the weight of separate tank shells and places a large part of the
aircraft's mass close to where lift is produced. In flight, lift bends the wings upward. Fuel
weight distributed along the wing acts downward and reduces the bending moment at the wing root.

That structural benefit influences the burn schedule. Centre-tank fuel is normally used early,
while outboard wing fuel is retained longer. This is why "burn the centre first" is more than a
plumbing convenience: it is part of managing airframe loads.

### Main tanks 2 and 3 are the large inboard tanks

The two inboard main tanks contain considerably more fuel than the outboard main tanks 1 and 4.
After the centre tank is depleted, 747 fuel logic manages tanks 2 and 3 toward the quantities in
tanks 1 and 4. The system can then settle into **tank-to-engine feed**, with each engine supplied
by its corresponding main tank.

### What the surge tanks actually do

Every tank needs to breathe as fuel volume and air pressure change. Vent lines lead toward surge
tanks near the tips. Fuel that reaches a vent line because of thermal expansion, manoeuvring or
overfill can collect there and drain back rather than immediately leaving the aircraft.

The surge tanks vent to atmosphere through outlets designed to maintain suitable pressure over
the flight envelope. They are therefore part of both spill control and pressure management.

### How fuel reaches the engines

### Main-tank boost pumps

In the original 747 arrangement, each main tank had two electrically powered centrifugal boost
pumps connected in parallel. Either pump could provide the required flow, and a bypass path
allowed the engine-driven pump to draw fuel if both boost pumps in that tank were unavailable.

The four main-tank feed lines connect to a **crossfeed manifold** through valves. In the simplest
normal condition, main tank 1 feeds engine 1, main tank 2 feeds engine 2, and so on. Opening the
appropriate crossfeed valves creates many other combinations, which is valuable after a pump,
engine or tank-feed problem.

### Why centre fuel takes priority

The centre wing tank uses **override/jettison pumps** with a higher discharge pressure than the
main-tank boost pumps. With the centre pumps operating and the feed valves correctly configured,
their pressure "overrides" the main pumps at the common manifold. The engines consume centre fuel
even though the main pumps remain available.

That pressure hierarchy is an elegant form of hydraulic logic: the preferred tank wins without
needing to shut down every backup source. Check valves prevent unwanted reverse flow.

### Crossfeed is flexibility, not one giant tank

The interconnected manifold does not mean all tanks constantly mix. Motor-operated valves and
check valves establish the active paths. The system can isolate a side, balance fuel across the
aircraft or allow one tank to feed multiple engines, but the crew must still respect pump inlet
coverage, lateral balance and structural limits.

### Transfer, balance and trim

### Reserve-tank transfer

Reserve tanks are emptied into associated main tanks. Depending on the variant, transfer valves
are opened by crew action or system logic once main-tank quantities reach defined conditions.
Gravity and pressure relationships then move the fuel inboard, where it enters the normal engine-feed
sequence.

The word "reserve" can be misleading: these are not the regulatory contingency reserves shown on
a flight plan. They are physical tanks. Whether the fuel inside them is trip fuel, contingency fuel
or final reserve is an operational planning matter.

### Horizontal-stabilizer fuel

Some long-range 747-400 passenger configurations could carry about **3,300 US gallons** in the
horizontal stabilizer. Tail fuel increased capacity and could place the centre of gravity farther
aft, reducing the aerodynamic download required from the tail and therefore reducing trim drag.

The trade-off was additional pumps, valves, plumbing, control logic and maintenance requirements.
Fuel had to be transferred forward according to a controlled schedule. The system was not fitted
or active on every 747-400: FAA material specifically distinguishes the 747-400D and 747-400F,
which did not have an active horizontal-stabilizer tank.

### 747-400ER body tanks

The passenger [747-400ER](/boeing_747_family/747-400er.php) could add one or two auxiliary body
tanks in the forward lower cargo compartment. Boeing's December 2024 planning manual lists each
tank at **3,060 US gallons (11,582 L)**. With two installed, some lower-hold cargo volume was
exchanged for longer range or greater payload-range flexibility.

These were separate tanks, not an enlargement of the centre wing tank. Their fuel was transferred
into the main system before being delivered to the engines. The 747-400ERF used the same basic
extended-range idea in a purpose-built freighter.

### Lateral balance

A four-engine aircraft can develop a fuel imbalance because of pump selection, an engine shutdown,
a leak or unequal transfer. Crossfeed and pump control allow fuel to be consumed from the heavier
side. The objective is not simply equal gauge readings; crews follow model-specific limits and
checklists so that any suspected leak is not accidentally fed from another tank.

### Refuelling, defuelling and venting

### Pressure refuelling

A 747 can accept fuel through underwing pressure-fuelling receptacles. Fuel enters a common
refuel/jettison manifold, and selected refuel valves distribute it to the required tanks. The
fuelling station lets ground staff select tanks and monitor quantities without filling each tank
through an individual overwing cap.

Float-operated or electrically controlled shutoff features protect against overfill. Vent and
surge capacity is still essential because fuel entering at high flow rates displaces a large volume
of air. Boeing's first 747 fuel-system paper devoted substantial attention to pressure surges and
static electricity because the aircraft's size made high-rate refuelling a new engineering problem.

### Why wing tanks are filled before the centre tank

Loading instructions are configuration-specific, but the structural principle is consistent:
wing fuel helps relieve upward wing bending. FAA material on the 747-100 describes the wing tanks
being filled before additional mission fuel is put in the centre wing tank.

### Defuelling and fuel transfer on the ground

The manifold can also support defuelling or tank-to-tank transfer when valves and pumps are selected
for an approved maintenance or ground-handling procedure. This common plumbing reduces the amount
of dedicated pipework, but it makes valve position and pump operation critically important.

### Fuel jettison

The 747 can depart at a weight far above its maximum landing weight. If it must return soon after
takeoff, the crew may hold to burn fuel, land overweight using an approved procedure, or jettison
fuel when conditions and time permit. Dumping is therefore an option, not an automatic requirement.

During jettison, pumps route fuel into the jettison manifold and through outlets near the wing tips.
Locating the nozzles outboard helps the discharge clear the engines, fuselage and tail. Later 747s
provide a fuel-to-remain selection and system logic to help stop jettison near the desired quantity;
classic aircraft relied more heavily on the flight engineer and direct panel indications.

Fuel released at altitude forms a fine spray. How much evaporates or disperses depends on release
height, temperature, droplet size and weather, so it is more accurate to say that fuel *can* disperse
substantially than to claim it always evaporates before reaching the surface. Crews coordinate with
air traffic control and use designated procedures whenever the emergency allows.

### Fuel quantity and cockpit controls

### Measuring fuel by capacitance

Fuel-quantity indication systems use multiple electrical probes distributed through tanks. The
capacitance changes as the probes become covered or uncovered by fuel. Because tank shape is
irregular and fuel density changes, the indicating system converts many measurements into a usable
mass or quantity display rather than relying on a simple float.

No sensor arrangement can make every pocket of fuel usable. Small quantities remain below pump
inlets or trapped by structure, which is why documents distinguish **total**, **usable** and
**unusable** fuel.

### From flight engineer to EICAS

On the 747-100, -200, -300 and SP, the flight engineer managed the fuel panel, pump switches,
crossfeed and transfer schedule. The two-crew 747-400 moved monitoring to the pilots, added an EICAS
fuel synoptic and used fuel-system management cards to automate or prompt much of the sequence.

The 747-8 continued the two-pilot philosophy with updated displays and control logic. Automation
reduces workload, but the same physical concerns remain underneath: pump pressure, valve position,
tank quantity, balance, temperature and feed continuity.

### Fuel temperature

Jet fuel cools during long, high-altitude flight. The crew monitors fuel temperature against the
approved limit for the fuel specification in use. The operational response may involve changing
altitude, speed or route to reach warmer air; the correct action comes from the aircraft flight
manual and airline procedures, not a generic rule of thumb.

### Fuel capacity by Boeing 747 variant

Published capacities vary with engine installation, optional tanks, weight standard and even the
definition used in a particular document. The table therefore gives **representative Boeing usable
or published capacity figures**, not a universal loading limit for every individual airframe.

| Variant or configuration | Representative capacity | What changes |
|---|---:|---|
| 747-100 passenger | 48,445 US gal (183,380 L) | Boeing's later performance summary; an early system paper described a 47,210-gallon configuration |
| 747SP passenger | 50,359 US gal (190,620 L) | Shorter fuselage, long-range mission; classic seven-tank architecture |
| 747-200B passenger | 53,985 US gal (204,355 L) | Higher-capacity development of the classic 747 |
| 747-300 passenger | 53,985 US gal (204,355 L) | Similar published capacity to the representative -200B |
| 747-400 family | about 53,985 - 57,285 US gal | Configuration-dependent; Boeing's upper figure includes optional 3,300-gallon tail fuel |
| 747-400ER, GE engines | 63,240 US gal (239,389 L) | Includes two 3,060-gallon body tanks |
| 747-400ER, PW or RR engines | 63,460 US gal (240,222 L) | Boeing lists a slightly different installation figure |
| 747-8 Intercontinental | 59,734 - 63,034 US gal (226,113 - 238,609 L) | Boeing Revision E conflicts: its detailed tank table lists 59,734 with no tail fuel, while page 2-3 lists 63,034 including tail-tank volume |
| 747-8 Freighter | 59,734 US gal (226,113 L) | Same published total, with no tail tank |

Boeing's January 2026 747-8 manual contains a source discrepancy worth preserving: its passenger
general-characteristics page gives **63,034 US gallons including tail-tank volume**, while the later
detailed tank-capacity table gives **59,734 US gallons** and a dash for the horizontal stabilizer.
Those figures differ by exactly 3,300 gallons. Until Boeing reconciles the tables, this page reports
both with their configuration basis instead of treating either as universal.

The apparent oddity - an extended-range 747-400ER carrying more published fuel than even the upper
747-8 passenger figure - is real in Boeing's planning tables. "Extended range" and "newer" do not mean
"largest fuel volume." The 747-8's new wing, GEnx engines, aerodynamics, weights and payload-range
design changed the whole efficiency equation.


For conversions of the other units a 747 sheet mixes - airspeed, altitude, range
and weight - use the [Boeing 747 units converter](/features/boeing-747-units-converter.html).

### How the fuel system changed by 747 variant

### 747-100, 747-100B and 747SR

The first production 747 established the architecture: four main tanks, two reserve tanks and a
centre wing tank, all vented toward surge tanks. A flight engineer controlled the pumps, transfer
and crossfeed. The short-range **747SR** used the same broad fuel-system family but was optimised for
high-cycle domestic service, so its operational fuel loads were typically far below maximum capacity.

The **747-100B** incorporated later structural and weight improvements. As with many 747 designations,
the exact usable quantity depends on customer specification and modification status, so a single
family brochure number should not be treated as every aircraft's certified capacity.

### 747SP

The shortened **747SP** was designed for long range. Boeing's historical performance summary lists
50,359 US gallons. Its fuselage was shorter, but the basic storage and feed architecture remained a
member of the classic family. The SP later became important in fuel-safety research: FAA/NASA work
used a 747SP to test simplified centre-tank inerting technology.

### 747-200, 747-200C/F and 747-300

The higher-weight **747-200B** raised representative published fuel capacity to 53,985 US gallons.
Convertible, combi and freighter derivatives retained the same central logic while weights and
installed equipment varied. The **747-300** added the stretched upper deck but did not require a
wholly new fuel architecture; Boeing's historical passenger summary also lists 53,985 US gallons.

Engine choice did not change the core tank map, but it affected performance data, plumbing details,
indications and certified quantities. Classic crews also had more direct responsibility for sequencing
than crews of later two-pilot models.

### 747-400 passenger and combi

The **747-400** introduced electronic displays, EICAS messages and fuel-system management cards.
This reduced routine switch handling and made the active flow path easier to see on a synoptic page.
Optional horizontal-stabilizer fuel increased capacity and provided centre-of-gravity benefits on
applicable long-range passenger configurations.

Even within the passenger/combi family, Boeing lists different capacity figures by engine and option.
This is why 747-400 references may quote roughly 54,000, 57,100, 57,164 or 57,285 US gallons without
necessarily describing the same configuration basis.

### 747-400D and 747-400F

The domestic **747-400D** and standard **747-400 Freighter** did not use an active horizontal-stabilizer
tank. Their mission and structural requirements favoured a simpler tail arrangement. The freighter
still used centre, main, reserve, surge, crossfeed and jettison functions appropriate to its model.

### 747-400ER and 747-400ERF

The **747-400ER** added higher weights and optional forward-hold body tanks. Each current Boeing-listed
tank holds 3,060 US gallons. Two tanks bring the GE-powered passenger model to 63,240 US gallons in
the planning manual, while Pratt & Whitney and Rolls-Royce columns list 63,460 US gallons.

Only six passenger 747-400ERs were built, all for Qantas, while the **747-400ERF** found a larger cargo
market. Both variants demonstrate an important fuel-system truth: extra tank volume brings weight,
space, plumbing and payload trade-offs; it is never "free range."

### 747 Large Cargo Freighter (Dreamlifter)

The **Dreamlifter** is a highly modified 747-400 used to carry 787 structures. Its enlarged upper
fuselage transformed cargo volume, not the aircraft into a new commercial fuel-system generation.
Its operation and modifications are specialised, so the approved operator data - not passenger
747-400 figures - defines the individual aircraft's limits.

### 747-8 Intercontinental and 747-8 Freighter

The **747-8** received a new, larger wing and updated fuel-system hardware and control logic. Boeing's
January 2026 airport-planning manual lists four main tanks, two reserve tanks and a 17,000-US-gallon
centre wing tank. Its detailed tank table totals 59,734 US gallons for both passenger and freighter
models and shows no horizontal-stabilizer quantity. However, the passenger general-characteristics
table on page 2-3 lists 63,034 US gallons and says the value includes tail-tank volume. The freighter
page remains 59,734 gallons and explicitly has no tail tank.

This 3,300-gallon passenger discrepancy appears inside the same Boeing revision, so operators and
researchers should identify the exact configuration and approved aircraft manual rather than infer a
universal 747-8 capacity from a single planning table. The 747-8 also incorporated a nitrogen
generation system as part of its fuel-tank ignition-prevention and flammability-reduction design basis.

### Special-purpose military and research 747s

Aircraft such as the **VC-25A**, **E-4B**, Shuttle Carrier Aircraft and airborne testbeds started from
commercial 747 variants but received mission-specific modifications. Public commercial planning
manuals do not fully describe those installations. Aerial-refuelling proposals and unique military
systems should therefore not be mixed into a general explanation of the airline 747 fuel system.

### Fuel-tank safety and the lessons of TWA Flight 800

On 17 July 1996, TWA Flight 800, a 747-131, broke up after an explosion in the centre wing tank. The
NTSB concluded that the explosion resulted from ignition of a flammable fuel-air mixture. It could
not identify the ignition source with certainty; the most likely mechanism was excessive voltage
entering wiring associated with the fuel-quantity indication system.

The investigation highlighted why an "empty" tank is not truly empty. Residual fuel remains, while
the space above it - the **ullage** - contains air and fuel vapour. On the accident aircraft, air-conditioning
packs below the centre wing tank had heated the tank. The fuel load for the flight did not require
centre-tank fuel, leaving a warm vapour space that could become flammable.

### The safety response

The response went far beyond one aircraft model:

- **SFAR 88 fuel-system reviews** forced manufacturers and operators to re-examine potential ignition
  sources, wiring, pumps, bonding, lightning protection and maintenance practices.
- **Airworthiness limitations** introduced inspections and configuration controls intended to preserve
  ignition-prevention features throughout an aircraft's life.
- **Pump operating limitations** reduced the chance of pumps running uncovered in low-fuel conditions.
- **Flammability-reduction systems** made nitrogen-enriched air a practical second layer of protection
  for vulnerable tanks, reducing oxygen concentration in the ullage.
- **747-400 and 747-8 changes** included model-specific wiring, software, maintenance and nitrogen-system
  requirements rather than one universal retrofit identical on every aircraft.

The central lesson is that fuel safety is layered. Preventing ignition remains essential, but modern
standards also reduce how often a tank atmosphere can support combustion and require continuing
maintenance of the protections.

### Common terms used in 747 fuel diagrams

| Term | Meaning |
|---|---|
| Boost pump | Electric pump that provides positive pressure from a main tank to the engine-feed system |
| Override/jettison pump | Higher-pressure pump used for centre/inboard feed priority and, when selected, jettison |
| Crossfeed valve | Valve connecting an engine-feed line to the common crossfeed manifold |
| Transfer valve | Valve that permits fuel to move from a reserve or auxiliary tank into the feed sequence |
| Scavenge system | System that recovers residual fuel from a tank area and transfers it to a usable tank |
| CWT | Centre wing tank, located in the wing centre section through the fuselage |
| HST | Horizontal stabilizer tank, fitted or active only on applicable configurations |
| FQIS | Fuel quantity indication system, using probes and electronics to calculate displayed quantity |
| Surge tank | Outboard vent-collector tank that catches displaced fuel and vents the tank system |
| Ullage | The vapour-filled space above liquid fuel inside a tank |

### A note for pilots, engineers and flight-sim users

This page explains principles across several generations of 747. It is **not** a checklist, maintenance
manual or substitute for current approved data. Pump thresholds, EICAS messages, valve schedules,
fuel-temperature limits and non-normal actions can differ by model, software standard, service bulletin
status and operator. Use the applicable Boeing manual and operator documentation for real-world operation.

### Related Boeing 747 resources

- [Boeing 747 systems and internals](/boeing-747-internals/)
- [747-400ER specifications and body fuel tanks](/boeing_747_family/747-400er.php)
- [Boeing 747-400 specifications](/boeing_747_family/747-400.php)
- [Boeing 747-8 new wing design](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html)
- [Complete Boeing 747 specifications comparison](/specifications.html)

## The engine family that spanned four decades of the 747

*URL: https://www.boeing-747.com/boeing-747-internals/general-electric-cf6.html*

The General Electric CF6 spanned the 747 from 1975 to the -400ER, rolling out on KLM's 747-200M in 1975. Versions include the CF6-50, the 10-percent-derated CF6-45 for ANA 747SRs, and the CF6-80C2 on -300s and most -400s.

General Electric's high-bypass CF6 gave airlines their first alternative to the JT9D and stayed on the 747 for four decades, from the -200 to the -400ER.

| Key facts |  |
|---|---|
| Applications | 747-200, -200B, -200M, -200F, 747SR, -300, -400, -400ER; also E-4A and VC-25A |
| Key versions | CF6-50 (51,000 - 54,000 lbf); CF6-45A2 46,500 lbf (747SR); CF6-80C2B1 56,700 lbf (-300); B1F 57,900 lbf (-400); B5F 62,100 lbf (-400ER) |
| Bypass / fan | CF6-50 4.26:1, 86.4 in fan; CF6-80C2 5.15 - 5.31:1, 93.0 in fan |
| First customer | KLM - first CF6-powered 747 (747-200M), ordered October 1975 |

The first GE-powered 747 was a **747-200, not a 747-100** - the -100 was JT9D-exclusive. The USAF's selection of the CF6-50 for the E-4A 747 in 1972 helped clear the way, and KLM's October 1975 order for a CF6-powered **747-200M Combi** brought the engine to the commercial fleet. JAL and Korean Air followed.

GE tailored engines for specific 747 customers: the **CF6-45A2**, a 10-percent-derated CF6-50 built only for ANA's high-cycle 747SR domestic operations, and the heavier **CF6-50E** for the 747-200 and 747-200F.

The **CF6-80C2** was the decisive version, powering the 747-300 and then most 747-400s (the B1F at 57,900 lbf) plus the 747-400ER (B5F at 62,100 lbf). It became the most-flown widebody engine in history, with more than 300 million hours, and remains the benchmark the 747-8's GEnx was measured against.


### A general-purpose engine family

The CF6 became one of the most widely flown turbofans ever, and its reach across the 747 is a large part of why. GE did not build a single 747 engine; it built a family that scaled and derated to suit different customers and missions. The CF6-50 series powered the -200 and the -200F; the CF6-45A2 was a deliberate 10-percent derate built only for ANA's high-cycle 747SR domestic work, trading thrust for the durability a short-haul high-cycle aircraft needed; and the CF6-80C2 family powered the -300, most -400s and the -400ER.

That breadth is the story. A -200 in 1975 and a -400ER three decades later share a name and a lineage, and the fleet that GE built support for is enormous.

### The variant that decided the -400

The CF6-80C2 was the version that mattered for the long-lived -400 fleet. The B1F rating of 57,900 lb powered standard 747-400s, and the higher-thrust B5F powered the 747-400ER. When the 747-8 arrived, the CF6-80C2 it replaced was the benchmark the GEnx-2B was measured against - and by the standards of the era, it was the most-flown widebody engine in history, with hundreds of millions of flight hours behind it.

### Customer-specific tailoring

GE tailored ratings to individual 747 operators throughout the family's life, from the ANA 747SR derate to the heavy CF6-50E for the -200F. This practice of customer-specific power is threaded through the whole 747 story and is covered in more depth on the [thrust ratings](/boeing-747-internals/thrust-ratings.html) page.

### Related

- [Fuel system](/boeing-747-internals/fuel-system.html)
- [Hydraulic systems](/boeing-747-internals/hydraulic-systems.html)
- [Electrical system](/boeing-747-internals/electrical-system.html)
- [747-8 systems differences](/boeing-747-internals/747-8-systems-differences.html)

## The only engine ever offered on a 747-8

*URL: https://www.boeing-747.com/boeing-747-internals/general-electric-genx-2b.html*

The General Electric GEnx-2B was Boeing's sole engine choice on the 747-8, selected in 2006. Its composite fan and TAPS combustor cut fuel burn about 13 percent versus the 747-400's CF6, and it powered Cargolux's first 747-8F in October 2011.

The GEnx-2B is the only engine ever offered on the 747-8, selected by Boeing as the sole propulsion supplier in **January 2006** - a reversal of the three-engine competition that decided classic 747 purchases.

| Key facts |  |
|---|---|
| Applications | Boeing 747-8F and 747-8 Intercontinental; later selected for the VC-25B |
| Thrust | 66,500 lbf (296 kN) takeoff rating - one rating for the 747-8 |
| Bypass / fan | 8.0:1 at takeoff (7.4:1 top of climb); 104.7 in fan - the largest fan on any 747 |
| Launch customers | Cargolux (747-8F, first revenue flight 12 October 2011); Lufthansa (747-8I, service 1 June 2012) |

The GEnx-2B first flew on the first 747-8F in **February 2010** - the first GEnx variant to fly - and was FAA/EASA certified in August 2011. Cargolux launched the freighter on **12 October 2011** and Lufthansa launched the 747-8 Intercontinental on 1 June 2012.

Despite being the only choice, the engine offered a major step forward: composite fan blades and case, a **TAPS (Twin Annular Premixing Swirler) combustor** cutting NOx by roughly 60 percent versus the CF6, and about **13 percent better fuel burn** than the CF6-80C2 on the 747-400.

GEnx-2B production continued to the very end of the 747 line: the last 747-8F, delivered to Atlas Air in January 2023, closed out 54 years of 747 manufacturing.


### The engine that kept the 747 alive

The GEnx-2B is the reason the 747-8 exists. Boeing needed an engine roughly 10 percent more efficient than the CF6-80C2 to make the -8's range and payload targets, and GE's GEnx - sharing its core and about 80 percent of its line-replaceable units with the 787's GEnx-1B - delivered it. The composite fan and case and the TAPS combustor cut fuel burn around 13 percent against the CF6 and NOx roughly 60 percent, which is what allowed the stretched -8 to fly longer routes than the -400 it replaced.

It remains the only engine ever offered on a 747-8. The single-source decision, taken in 2006, was a reversal of the three-engine competition that had defined 747 purchases since the -400, and it meant the 747-8's entire production run, including the last 747 freighter delivered to Atlas Air in 2023, ran on this one powerplant.

### Technology lineage

Because the GEnx-2B shares so much with the GEnx-1B, the 747-8's engine is a case study in how aero-engine programmes scale: the commercial core that GE designed for the 787's smaller diameter was adapted, at scale, to become the sole engine of the largest passenger 747 variant. The 104.7-inch fan is the largest ever fitted to a 747, a physical statement of the same efficiency story.

### Related

- [Fuel system](/boeing-747-internals/fuel-system.html)
- [Hydraulic systems](/boeing-747-internals/hydraulic-systems.html)
- [Electrical system](/boeing-747-internals/electrical-system.html)
- [747-8 systems differences](/boeing-747-internals/747-8-systems-differences.html)

## The four hydraulic systems

*URL: https://www.boeing-747.com/boeing-747-internals/hydraulic-systems.html*

Four independent hydraulic systems, each driven by a different engine and each with a demand pump, powering flight controls, gear and brakes.

A 747 is far too large to be flown by muscle. Every primary flight control, the landing gear, the brakes, the nosewheel steering and the leading and trailing edge devices are moved hydraulically, and the aircraft is built around **four independent hydraulic systems**.

### The layout

Systems 1 to 4 correspond to engines 1 to 4. Each has:

- an **engine-driven pump**, running whenever that engine is running, providing the primary supply in flight; and
- a **demand pump** in parallel - air-driven or electrically powered depending on the system - which cuts in automatically when demand rises or the engine-driven pump is unavailable.

That pairing is the point. Losing an engine does not lose a hydraulic system, because the demand pump keeps the system pressurised independently of the engine that normally drives it.

### Why four, and why split this way

The 747 was certified in 1969 to standards that assumed things break, and the answer nearly everywhere was **redundancy through separation** rather than duplication in one box.

The flight controls are divided so that no single hydraulic failure removes an entire axis of control: control surfaces are split into sections powered by different systems, so a failed system costs you some authority in pitch, roll or yaw but never all of it. The aircraft is flyable and landable on a subset of its systems.

The same reasoning drives the [electrical system](/boeing-747-internals/electrical-system.html), where generation is also per engine.

### Where it ran out

Two accidents show the limit of the idea, and both are worth understanding because the failure was not in the redundancy but in the routing.

On **[Japan Air Lines 123](/accidents_with_boeing_747s/jal-123.html)** an aft pressure bulkhead failed, destroying much of the tail - and with it **all four hydraulic systems at once**, because all four ran through that part of the aircraft. The crew flew for 32 minutes on engine thrust alone.

On **[National Airlines 102](/videos/horrific-boeing-747-crash.html)** unrestrained cargo broke loose and destroyed the hydraulics and the stabiliser jackscrew together.

Redundancy protects against **independent** failures. Neither of these was independent: one event took every path. Designers call this common-mode failure, and separating systems physically - not just logically - is the only defence.

### What changed on the 747-8

The [747-8](/boeing_747_family/747-8.php) added **fly-by-wire spoilers and outboard ailerons**, part of the [new wing](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html). That is what makes its manoeuvre load-alleviation system possible: the aircraft can redistribute lift across the wing during unusual flight conditions, which let Boeing build a lighter structure and save about 1,400 lb.

### Related

- [747 systems](/boeing-747-internals/)
- [Flight controls](/boeing-747-internals/flight-controls.html)
- [Landing gear](/boeing-747-internals/landing-gear.html)

## Keeping the leading edges clean and the air data honest

*URL: https://www.boeing-747.com/boeing-747-internals/ice-and-rain-protection.html*

The 747 protects against icing in two ways: hot bleed air heats the wing and engine leading edges, while electric heating guards the cockpit windows, pitot tubes and air-data probes. Rain is handled by heated windshields and wipers.

A 747 rushes a warm stream of bleed air through its wing leading edges and engine inlets to stop ice before it forms, while electrically heated windowpanes and pitot heads cover the parts bleed air cannot reach.

| Key facts |  |
|---|---|
| Wing / engine | Hot bleed air warms the leading edges and inlets |
| Cockpit / probes | Electric heat on windshields, pitot tubes and air-data sensors |
| Crew actions | Wing and engine anti-ice are armed when descending in visible moisture near 0 °C |
| Rain | Heated windshields plus wipers |

Large-jet practice reserves hot bleed air for wing leading edges, engine inlets, radomes and empennage surfaces, and uses electrical heating for windshields and pitot-static probes. The 747 follows that pattern exactly, with PPG "Nestar"-type heating in the glass.

On the 747-400, in visible moisture with the total air temperature below 10 °C, engine-nacelle anti-ice must be selected on before thrust is reduced for descent, and wing anti-ice must be on at or below 22,000 ft in certain icing conditions (FAA AD 2011-16-02).

### Why leading edges only

The choice to bleed-heat only the leading edges is a structural and aerodynamic one. A 747 wing is designed to a specific airfoil, and the leading edge is the part that meets the air first - so it is the part that accumulates ice, catches the rain that turns to ice, and suffers the aerodynamic roughness that matters most. Distributing hot bleed air to the entire span would be far heavier and more fuel-hungry than the benefit justifies. Concentrating it at the leading edge is the efficient compromise large transports made for decades.

### Electric heat for the small, critical parts

The cockpit windows, the pitot tubes and the air-data probes cannot be served usefully by bleed air - they are small, electrically sensitive, and mounted where a pneumatic run would be impractical. They use resistive electrical heating instead. The windshield heating matters in its own right for visibility in icing, and the pitot and probe heat is a flight-safety item, because a frozen or blocked air-data probe corrupts the airspeed, altitude and airspeed-margin information the flight guidance system depends on.

### The cold-soak problem

Rain that freezes on a windshield is the case that catches crews out. Supercooled droplets can form a glaze ahead of the anti-ice system reaching the glass, and clearing it may require a windshield-temperature step rather than a gradual warm-up. This is why certified anti-ice procedures specify not just when to switch systems on but how to manage the transition, and why descent through a warm-rain layer into standard conditions is a recognised hazard on aircraft with heated glass.

### Related

- [Pneumatic and bleed-air system](/boeing-747-internals/pneumatic-and-bleed-air-system.html)
- [Flight controls](/boeing-747-internals/flight-controls.html)
- [Flutter and load alleviation](/boeing-747-internals/flutter-and-load-alleviation.html)
- [747-8 systems differences](/boeing-747-internals/747-8-systems-differences.html)

## Eighteen wheels

*URL: https://www.boeing-747.com/boeing-747-internals/landing-gear.html*

Five gear legs, 18 tyres, and a body gear steering system that counter-steers to keep a 400-tonne aircraft from scrubbing its tyres off in a turn.

A fully loaded [747-8](/boeing_747_family/747-8.php) weighs up to **987,000 lb (447,700 kg)** at takeoff. All of it rests on eighteen tyres, and the arrangement is more considered than it looks.

### Five legs

| Gear | Wheels |
|---|---|
| Nose | 2 |
| Wing gear (2 legs, one under each wing root) | 8 |
| Body gear (2 legs, under the fuselage) | 8 |
| **Total** | **18** |

Four main legs of four wheels each, plus the nose. The wing gear retracts inward toward the fuselage; the body gear retracts forward.

### Why so many wheels

Not to carry the weight - a smaller number of larger tyres could do that. It is about **pavement loading**.

Runways and taxiways are rated for a maximum load per unit area. An aircraft that concentrates its weight on too few contact patches will be barred from airports whose pavement cannot take it, or will require them to be rebuilt. Spreading nearly 450 tonnes across eighteen tyres and four widely separated legs keeps the 747 within the pavement ratings of airports it needs to serve.

That decision is also why the [747-8 was able to enter service without airports rebuilding anything](/boeing_747_family/747-8i.php) - a pointed contrast with the A380.

There is a redundancy benefit too: the aircraft can be landed safely with some wheels or brakes unavailable.

### Body gear steering

Here is the part most people never notice. A 747 turning tightly on a taxiway would, with a fixed main gear, drag its rear wheels sideways across the pavement - scrubbing rubber off the tyres, loading the gear legs sideways and chewing up the surface.

So **the body gear steers**, and it steers the *opposite way* to the nose wheel, because it sits on the other side of the turn's centre point.

- It arms once nose wheel steering passes roughly **20 degrees**.
- At full nose deflection of **70 degrees**, the body gear reaches about **13 degrees on the inboard truck and 11 degrees on the outboard**.
- On the [747-400](/boeing_747_family/747-400.php) it is fully automatic, enabling and disabling around 20 knots. On the [-100, -200 and -300](/boeing_747_family/) it had a crew-operated arm switch.

The payoff is a tighter turning circle, less tyre wear, less brake and thrust needed to get round a corner, and lower stress in the gear.

### Brakes

The brakes are the reason the [rejected takeoff test](/videos/boeing-747-8-being-put-through-some-tough-tests.html) is the most demanding certification event the aircraft faces: they must absorb the entire kinetic energy of a near-million-pound aircraft at takeoff speed and turn it into heat, on worn brakes, with no reverse thrust and no cooling.

Tyres carry **fuse plugs** designed to melt and release pressure in that situation, so a tyre deflates rather than bursting.

### A side effect nobody designed for

Because the wing and body gear are spread fore and aft, a 747 is stable enough to have heavy freight loaded into the rear fuselage without sitting back on its tail. That is precisely what makes the [Combi](/boeing_747_family/747-400m-combi.php) possible - cargo loading through a rear side door while passengers board at the front.

### Related

- [747 systems](/boeing-747-internals/)
- [Hydraulic systems](/boeing-747-internals/hydraulic-systems.html)

## From three inertial units to two flight computers

*URL: https://www.boeing-747.com/boeing-747-internals/navigation-and-avionics.html*

Classic 747s flew with three Litton LTN-72 inertial navigation units used as primary references. The 747-400 moved to twin Flight Management Computers driving glass PFD/NDs and EICAS displays, with navigation radios integrated through the FMS.

Navigation on the 747 traces the industry's digital shift: the classic's dark-panelled triple inertial units gave way to the 747-400's dual Flight Management Computers and six glass display units.

| Key facts |  |
|---|---|
| Classic 747 | Three Litton LTN-72 inertial navigation units (INS) |
| 747-400 | Twin FMCs, inertial reference units, six display units |
| Displays | Captain's and F/O's PFDs and NDs, plus main and auxiliary EICAS |
| Integration | VOR/DME/ILS radios, air data and fuel systems all feed the FMS |

For classic 747s, three four-gimbal, all-attitude inertial platforms dead-reckoned the position across oceans, cross-checked against VOR/DME near land. The crew managed the navigation problem around a nav table.

The 747-400 folded all of that into software. Its dual Flight Management Computers use five processors each and integrate the air-data sensors, crew inputs, navigation radios, engine and fuel systems and inertial reference to provide flight control command, navigation, thrust management, map display and performance optimisation, all reached through a CDU keypad.

### Why three inertial units on the classic

The triple-LTN-72 fit on the classic 747 is not redundancy for its own sake; it reflects a navigation architecture that treated position as the critical output of a chain of error-prone physical processes. Each unit integrated gyroscopes, accelerometers and a gimbal-stabilised platform to dead-reckon position from an initial alignment. A fourth-gimbal arrangement let the unit sense its own alignment, but the whole chain drifted, and drift had to be corrected against external references.

Three units meant the crew always had a cross-check. The navigation problem was managed by comparing the three and by updating from radio aids, and the workload sat squarely with the flight engineer and the pilots at a panel full of digital readouts and a navigation table. It was effective, but it was manual work.

### The -400's integrated architecture

The 747-400 replaced that with a distributed computing architecture. Two Flight Management Computers, each with multiple processors, became the central nervous system, and the six display units (two PFDs, two navigation displays, and two EICAS screens) became the primary interface.

The functional shift is worth stating plainly: the FMS did not just compute position any more, it computed everything downstream of position. It managed flight guidance commands, thrust and speed control through autothrottle, the map and plan display, and performance optimisation. The radios, the air-data computers, and the engine and fuel management systems all fed into it and were all displayed through it. What had been a set of separate boxes became an integrated system reached through a control display unit keypad.

That integration is also why the NTSB safety letter in the sources concerned itself with how the 747-400's display units behaved on failure - the shared display electronics were a real design consideration for the type.

### Related

- [Flight guidance and autopilot](/boeing-747-internals/flight-guidance-and-autopilot.html)
- [Flight deck](/boeing-747-internals/flight-deck.html)
- [EICAS](/boeing-747-internals/eicas-747-400.html)
- [Weather radar](/boeing-747-internals/weather-radar.html)

## Three tiers of oxygen, sized around failure

*URL: https://www.boeing-747.com/boeing-747-internals/oxygen-system.html*

Boeing 747 oxygen comes in three tiers: flight-crew quick-donning masks worn above FL250, cabin-crew protective breathing equipment, and passenger masks with chemical oxygen generators. Sizing assumes a pressurisation failure with a rapid descent to 10,000 ft.

Airliner oxygen on the 747 is delivered in layers: high-pressure demand masks for the two pilots, protective breathing equipment for the cabin crew, and chemical-generator masks that deploy from the ceiling for passengers.

| Key facts |  |
|---|---|
| Flight crew | Quick-donning demand masks, mandatory above FL250 |
| Cabin crew | Protective breathing equipment (PBE) with its own generator |
| Passengers | Drop-down masks fed by chemical oxygen generators |
| Sizing case | Rapid descent to 10,000 ft plus continued supply to land |

Regulations require each flight-crew member on duty above FL250 to have a mask that can be donned quickly from its ready position and that supplies oxygen on demand; the pilot flying must wear oxygen at all times above FL250 unless quick-donning masks are fitted.

Passenger oxygen covers at least 10 percent of the seats with about a 30-minute supply, engineered to support a 10-minute descent to 10,000 ft followed by continued supply. Both crew and passenger systems are sized around survivable pressurisation failures.

### Three tiers, three purposes

The 747 carries oxygen for three distinct populations, and the systems are sized differently for each.

**Flight crew** use a pressurised, demand-flow system delivered through quick-donning masks. The masks sit at the crew stations ready to be donned in seconds, and each crew member has their own independent supply. Because the flight deck is pressurised separately from the cabin, a flight-deck depressurisation is handled without reference to the passenger supply.

**Cabin crew** carry portable protective breathing equipment - a hood or facepiece with its own chemical oxygen generator, sized to protect one person for several minutes. It exists for the specific case where the cabin is smoke-filled or the crew must enter a hostile atmosphere to complete an evacuation, and it is deliberately independent of the aircraft's fixed systems.

**Passengers** are served by drop-down masks fed by chemical oxygen generators mounted in the overhead panels. Pulling a mask pulls a generator pin, starting an exothermic reaction that makes oxygen without needing any aircraft power or plumbing. That autonomy is the point: the system has to keep working after the exact failure it exists for.

### Sizing around the worst credible case

Passenger oxygen is not sized for comfort; it is sized for a failure. The regulations and the type's certification basis assume a rapid descent from cruise altitude to 10,000 ft after a decompression, followed by enough continued supply to reach an airport. The generator count reflects that, which is why the mask rows are spread through the cabin rather than concentrated near the exits.

This is a different philosophy from crew oxygen, which is sized for immediate, indefinite supply because the flight deck has to keep flying.

### Related

- [Pressurisation](/boeing-747-internals/pressurisation.html)
- [Cabin systems](/boeing-747-internals/cabin-systems.html)
- [Fire detection and extinguishing](/boeing-747-internals/fire-detection-and-extinguishing.html)
- [747-8 systems differences](/boeing-747-internals/747-8-systems-differences.html)

## The 747 working utility supply

*URL: https://www.boeing-747.com/boeing-747-internals/pneumatic-and-bleed-air-system.html*

High-pressure bleed air from the engines and APU is the 747's working utility supply: it powers air conditioning, cabin pressurisation, engine and APU starting, and wing anti-ice. Only the 787 abandoned bleed air; the 747 kept the conventional architecture.

The 747 "bleeds" high-pressure, high-temperature air from its engine compressors and uses it as a workhorse utility supply: air-conditioning packs, cabin pressurisation, engine and APU starting, and wing and engine anti-ice all depend on it. It is why the 747 belongs to the "conventional" pneumatic generation of airliners.

| Key facts |  |
|---|---|
| Source | Engine compressors, plus the APU when engines are off |
| Users | Air conditioning packs, pressurisation, engine/APU starting, wing and engine anti-ice, some pneumatic actuation |
| Ground need | A ground pneumatic (bleed-air) supply heats or cools the cabin while engines are shut down |
| Exception | The Boeing 787 is bleedless; the 747 was not |

Modern turbofans such as the JT9D, CF6, RB211 and PW4000 supplied plenty of hot, high-pressure bleed air, but it carries a small fuel-efficiency penalty - the air is "stolen" from the compressor path.

The 747-400 and 747-8 use the same philosophy: bleed air from the engine fan/core stages is conditioned and distributed to the packs. Boeing documents ground pneumatic power requirements for heating and cooling in the 747-8 airport-planning manual.

### The trade-off of conventional bleed

Tapping compressed air for utilities works, but it is not free. Every unit of bleed air is air the engine would otherwise use to produce thrust, and the energy spent heating and pressurising it comes out of overall efficiency. This is the fundamental reason the industry eventually moved toward more-electric architectures.

The 747 sat on the cusp of that transition. It kept bleed because the pneumatic architecture was deeply integrated and well understood, and because the aircraft's roles - long-haul passenger, freighter, and Combi - valued the reliability of a simple, mechanically robust utility source. The 747-8, the last of the line, still bled.

### What runs on bleed air

Bleed air feeds several critical consumers, and the routing is why a single engine's bleed failure can cascade into a dispatch problem:

- **Pneumatic engine starting** - high-pressure starter air rotates the engine through cranking.
- **Air conditioning packs** - bleed air is chilled and then reheated to condition cabin and cockpit air.
- **Pressurisation** - conditioned packs supply the cabin and the outflow control system manages cabin altitude.
- **Wing and engine anti-ice** - hot bleed air runs through the leading-edge piccolo tubes to shed ice.
- **APU start and some pneumatic actuation** - minor consumers, but they close the start chain.

Because these consumers are largely independent, the minimum-equipment lists for the 747 (see the Transport Canada MMEL in the sources) allow the aircraft to dispatch with bleed-related items inoperative provided enough redundancy remains for the intended operation.

### Related

- [Fuel system](/boeing-747-internals/fuel-system.html)
- [Hydraulic systems](/boeing-747-internals/hydraulic-systems.html)
- [Electrical system](/boeing-747-internals/electrical-system.html)
- [747-8 systems differences](/boeing-747-internals/747-8-systems-differences.html)

## The engine that made the jumbo possible

*URL: https://www.boeing-747.com/boeing-747-internals/pratt-whitney-jt9d.html*

The Pratt & Whitney JT9D was the first high-bypass turbofan in airline service and the only engine on the 747-100. It launched on RA001 in 1969, powered 747SPs and many classics, and kept improving until the CF6 and RB211 offered choice.

The JT9D made the Boeing 747 possible. When RA001 first flew on **9 February 1969** it ran on four JT9Ds rated at 43,500 lbf (193 kN) each - the first high-bypass turbofans ever to fly on an airliner, and far quieter and more economical than the turbojets the 747 was meant to replace.

| Key facts |  |
|---|---|
| Applications | 747-100, -100B, -200, -200B, -200F, 747SP, -300 (never -400 or -8) |
| Thrust classes | JT9D-3/-3A 43,500 lbf; -7A 46,150 lbf; -7F 48,650 lbf; -7J 50,000 lbf; -7R4G2 54,750 lbf |
| Bypass / fan | 4.8:1 ratio; 92.3 in fan (-3A), 93.4 in (-7 series) |
| Launch customer | Pan Am - first revenue JT9D 747 flight 22 January 1970, JFK - LHR |

The JT9D entered airline service on Pan Am 747-100s in **January 1970** and was the only engine offered on the 747-100. Early reliability was poor: compressor stalls, fatigue cracks and a distinctive casing distortion nicknamed "ovalization" caused serious delays in 1970 - 71. A catastrophic engine-and-wing fire on a Pan Am 747 at JFK in **July 1970** forced FAA inspections across the fleet.

Pratt & Whitney redesigned the titanium thrust frame that carried the engine, curing the ovalization problem, and later JT9D variants grew steadily in thrust. The **JT9D-7R4G2** at 54,750 lbf took the engine onto the 747-300, while the 747SP was powered by JT9D-7 variants up to 50,000 lbf - the NASA/DLR observatory **SOFIA**, a 747SP, still flies on four JT9D-7Js.

The JT9D family ultimately logged more than **169 million flight hours** across all applications, proving the high-bypass concept the whole industry now uses.


### The engine that made the jumbo possible

The JT9D is inseparable from the 747 because for the first three years it was the only engine on the type. When RA001 first flew in February 1969 it ran on four JT9Ds, and for a 747-100 there was no alternative - which gave Pratt & Whitney extraordinary leverage in the type's early commercial life, with Pan Am as launch customer.

The early engine was also a difficult one. The first years of 747 operation were marred by compressor stalls, fatigue cracking and casing distortion - the "ovalization" that came to characterise early JT9D-powered 747s - producing serious delays in 1970 and 1971. A catastrophic engine-and-wing fire on a Pan Am 747 at JFK in July 1970 grounded the fleet and forced inspections across the type. Pratt's redesign of the titanium thrust frame that carried the engine cured the structural distortion that had been behind much of the trouble.

### Long life and long reach

What makes the JT9D remarkable is how long it kept mattering. Variants grew in thrust through the -200, the -200B, the -200F, the 747SP and the -300, the -7R4G2 variant taking the engine to 54,750 lb on the -300. The NASA/DLR SOFIA observatory, a converted 747SP, still flies on four JT9D-7Js. The family ultimately logged more than 169 million flight hours, and it proved the high-bypass turbofan concept that the entire industry now builds on. By the time the 747-400 arrived, the CF6, RB211 and PW4000 had ended the JT9D's exclusivity, but the engine had already defined the type.

### Related

- [Fuel system](/boeing-747-internals/fuel-system.html)
- [Hydraulic systems](/boeing-747-internals/hydraulic-systems.html)
- [Electrical system](/boeing-747-internals/electrical-system.html)
- [747-8 systems differences](/boeing-747-internals/747-8-systems-differences.html)

## The engine that launched the 747-400

*URL: https://www.boeing-747.com/boeing-747-internals/pratt-whitney-pw4000.html*

Pratt & Whitney's PW4000-94 launched the 747-400 with Northwest in 1989. The PW4056 (56,750 lbf) powered standard -400s; the higher-thrust PW4062A (to 63,300 lbf) served the 747-400ER. The 747-400 was the first airliner certified with three engine choices in one programme.

The Pratt & Whitney PW4000-94, named for its 94-inch fan, was one of three engine families offered on the 747-400 - and the one that launched the type.

| Key facts |  |
|---|---|
| Applications | 747-400 (PW4056) and 747-400ER (PW4062A) - only 747 variants |
| Thrust classes | PW4056 56,750 lbf; PW4062A 62,000 - 63,300 lbf (rating standard dependent) |
| Bypass / fan | 4.8 - 5.0:1; 94 in fan ("PW4000-94" family) |
| Launch customer | Northwest Airlines - ordered December 1985; first aircraft January 1989; first revenue flight 9 February 1989 |

The PW4000 programme was launched in December 1982 and the engine was FAA-certified in July 1986, first flying on the Airbus A310. Northwest became the **launch customer for the PW4000-powered 747-400**, and its first aircraft N663US entered revenue service on **9 February 1989**, launching the 747-400 programme itself.

The 747-400 was the **first type certified with three different engine families in a single flight-test programme** - PW4000, CF6-80C2 and RB211-524G/H - receiving FAA certification on **10 January 1989**. The 747-400 prototype N401PW (later N661US) served as the PW4056 testbed.

The **PW4062A**, a higher-thrust derivative with a higher overall pressure ratio, was created for the 747-400ER's 412,000 lb-weight, longer-range mission. Beyond Northwest, PW4000 customers on the 747-400 included United, Singapore Airlines, Korean Air, and many Asian carriers.


### The engine that launched the -400

The PW4000-94 - named for its 94-inch fan - is the engine most associated with the 747-400 because it launched the type. Northwest Airlines ordered the PW4000-powered 747-400 in December 1985, the first aircraft entered service on 9 February 1989, and it flew the type's revenue launch flight. The 747-400 prototype itself, N401PW, served as the PW4056 testbed.

### Three engines, one programme

The PW4000's place in 747 history is as much about competition as thrust. The 747-400 was the first airliner type certified with three different engine families - PW4000, CF6-80C2 and RB211-524 - in a single flight-test programme, receiving FAA certification on 10 January 1989. That competition gave airlines a genuine choice on the -400, in contrast to the 747-100's single-engine lock, and it is the era covered on the [engines overview](/boeing-747-internals/engines.html) page.

### The -400ER's engine

The higher-thrust PW4062A, with a higher overall pressure ratio, was developed for the 747-400ER's long-range, heavy mission, and it powered most -400ER freighters. The distinction between the PW4056 and the PW4062A is a good illustration of the [thrust-rating trade-offs](/boeing-747-internals/thrust-ratings.html) that ran through the whole 747 family: the higher rating bought range and payload at the cost of engine life and hot-and-high margin. Beyond Northwest, PW4000 747-400 customers included United, Singapore Airlines and Korean Air.

### Related

- [Fuel system](/boeing-747-internals/fuel-system.html)
- [Hydraulic systems](/boeing-747-internals/hydraulic-systems.html)
- [Electrical system](/boeing-747-internals/electrical-system.html)
- [747-8 systems differences](/boeing-747-internals/747-8-systems-differences.html)

## Pressurisation and air conditioning

*URL: https://www.boeing-747.com/boeing-747-internals/pressurisation.html*

Bleed air, air conditioning packs and outflow valves keep the cabin habitable - and every pressurisation cycle is a fatigue cycle on the airframe.

At a 747's cruising altitude the outside air is around −55 °C and far too thin to breathe. The cabin is kept habitable by taking air from the engines, conditioning it, and letting it out at a controlled rate.

### Where cabin air comes from

On every 747 up to and including the [747-8](/boeing_747_family/747-8.php), cabin air is **bleed air**: air tapped from the compressor stages of the engines, before combustion.

It arrives hot and at high pressure, and passes through **air conditioning packs** - heat exchangers and air cycle machines that cool it and control its moisture - before being distributed to the cabin.

This is worth contrasting with the 787, which is a **more-electric** aircraft: it draws cabin air through dedicated electric compressors instead of engine bleed. The [747-8's GEnx-2B](/videos/boeing-747-8-engine-overvie.html) had to be adapted back from the 787's GEnx specifically to provide bleed air again, because the 747 uses conventional pneumatic systems.

### Keeping the pressure

Air is fed in continuously and let out through **outflow valves**. Cabin pressure is set by how fast air is allowed to leave, not by how fast it goes in.

The cabin is held at an equivalent altitude of roughly **8,000 ft** at cruise - comfortable enough for almost everyone, while keeping the pressure difference across the fuselage within what the structure can take. The [747-8 improved on this](/everything-about-the-boeing-747-8/new-environmental-control-system-ecs.html), as did the 787, by lowering cabin altitude and raising humidity.

### The fuselage is a pressure vessel

This is the structural consequence, and it drives more of the aircraft's design and maintenance than anything else.

A pressurised fuselage is a balloon with people in it. Every flight inflates it and deflates it once, and each of those **cycles** puts a fatigue load into the structure. Metal fatigue depends on the number of load cycles far more than on hours flown.

That is why the 747's most unusual variants exist. The [747-100SR](/boeing_747_family/747-100sr.php), [-300SR](/boeing_747_family/747-300sr.php) and [747-400D](/boeing_747_family/747-400d.php) were built for Japanese domestic routes flying many short sectors a day, and were structurally reinforced specifically to absorb far more pressurisation cycles than a long-haul 747 would ever see. One ANA aircraft retired with more than **33,000 cycles**.

It is also why the aft pressure bulkhead is such a critical component - and why a faulty repair to one destroyed [Japan Air Lines 123](/accidents_with_boeing_747s/jal-123.html) seven years and 12,318 flights after it was made.

### Related

- [747 systems](/boeing-747-internals/)
- [The 747-8's environmental control system](/everything-about-the-boeing-747-8/new-environmental-control-system-ecs.html)
- [The 747-100SR](/boeing_747_family/747-100sr.php)

## Three shafts and a distinctive note

*URL: https://www.boeing-747.com/boeing-747-internals/rolls-royce-rb211-524.html*

The Rolls-Royce RB211-524, premium by its three-shaft design, entered 747 service with British Airways in 1977, ran on -200s, -200Bs, SPs and -300s, and returned as the -524G/H - the first FADEC RB211s - on the 747-400 and -400ER.

Rolls-Royce's RB211-524 brought the three-shaft gas generator to the 747, delivering smooth, efficient power and a distinctive high-pitched note that became part of the classic 747 sound.

| Key facts |  |
|---|---|
| Applications | 747-200, -200B, -200F, 747SP, -300 (-524B/C/D4); 747-400 and -400ER (-524G/-524H only) |
| Thrust classes | B2 49,120 lbf; C2 50,600 lbf; D4 53,000 lbf; G 58,000 lbf; H 60,600 lbf |
| Bypass / fan | 5.0:1 (B/C/D4), 4.3:1 (G/H); 86.3 in fan |
| First customer | British Airways - ordered June 1975, entered service June 1977 on a 747-200B |

British Airways ordered the RB211-524 for its 747-200Bs in June 1975 and introduced it in service in **June 1977**. Qantas then had Boeing adopt the higher-thrust **-524D4** on its 747-238Bs from 1979, and SAA, Cathay Pacific and others followed on -200s and -300s.

The -524 was never fitted to the 747-100 or the 747-8. Its final 747 application was the **-524G** (58,000 lbf) and **-524H** (60,600 lbf) - the first FADEC-equipped RB211s - which entered service with the 747-400's FAA certification in **January 1989**. The heavier H/T version served the 747-400ER.

Later hybrid -524G/H builds paired the RB211 core work with technology from the Trent family, extending the engine's life right up to the end of 747 passenger operations.


### Three shafts, distinctive sound

The RB211-524 brought Rolls-Royce's three-shaft gas-generator architecture to the 747, and with it a smooth, efficient power delivery and a distinctive high-pitched note that became part of the classic 747's sound. The three-shaft layout - separate gas generator and fan spools - was the RB211's signature, and it gave the engine a balance and response the two-shaft competitors of its day did not quite match.

### British Airways first, then the world

British Airways ordered the RB211-524 for its 747-200Bs in June 1975 and introduced it into service in June 1977, making it the first Western customer of a Rolls-Royce engine on a 747. Qantas then had Boeing adopt the higher-thrust -524D4 on its 747-238Bs from 1979, and South African Airways, Cathay Pacific and others followed on the -200 and -300. The -524 was never fitted to the 747-100 or the 747-8.

### The -400 and -400ER return

After a gap through the early -400 development, the RB211 came back in force as the -524G and -524H - the first FADEC-equipped RB211s - which entered service with the 747-400's January 1989 certification. The -524G at 58,000 lb powered the -400, and the heavier -524H (with the later -524H8-T and -524H8-T variants) served the 747-400ER. Later hybrid -524G/H builds paired the RB211 core with technology from the Trent family, extending the engine's life to the very end of 747 passenger operations. It remains the only British engine ever to power a 747.

### Related

- [Fuel system](/boeing-747-internals/fuel-system.html)
- [Hydraulic systems](/boeing-747-internals/hydraulic-systems.html)
- [Electrical system](/boeing-747-internals/electrical-system.html)
- [747-8 systems differences](/boeing-747-internals/747-8-systems-differences.html)

## The number that is not fixed

*URL: https://www.boeing-747.com/boeing-747-internals/thrust-ratings.html*

The same 747-400 type was approved with several thrust ratings per engine family, and changing between them was a scheduled ground action with real consequences for performance and engine life.

A 747's thrust rating is the number most often quoted about it and the one most often wrong. It is not a fixed property of the aeroplane. On the -400 and the types before it, the same certified type could be operated at **different thrust ratings**, and which one it carried was a decision an operator made and could change.

### The ratings, by variant

Boeing's own airport-planning documentation lists the certified rated takeoff thrust options:

| 747-400 | Rated takeoff thrust | 747-400ER | Rated takeoff thrust |
| --- | ---: | --- | ---: |
| CF6-80C2B1F | 57,900 lb | CF6-80C2B5F | 62,100 lb |
| PW4056 | 56,750 lb | PW4062 | 63,300 lb |
| RB211-524G2 | 58,000 lb | RB211-524H8-T | 65,500 lb |

Two things jump out. The three engine makers certified to broadly similar thrusts for the -400, within about 1,250 lb of each other - engine choice on the -400 was genuinely competitive, as the [engine pages](/boeing-747-internals/engines.html) set out. And the -400ER ratings are all substantially higher, because the -400ER exists to carry more weight and more fuel, and that requires more thrust to fly the same speeds.

The [747-8](/boeing_747_family/747-8.php) then removed the choice almost entirely: it has a single engine option, the [GEnx-2B](/boeing-747-internals/general-electric-genx-2b.html). Flexible thrust rating is a phenomenon of the -400 and earlier types, not of the modern one.

### Why a higher rating costs engine life

Within a single engine family, the higher-rated versions are not different engines. They are the same gas path asked for more.

A higher rating is obtained with a higher throttle setting, more fuel and higher rotational speeds. The immediate consequence is temperature. Engines are limited by exhaust gas temperature, and the margin between the actual EGT and the redline is what absorbs a hot day, an ageing engine and a slightly worn compressor. Spend that margin in advance and there is less left to give.

This shows up in the certification data as a **flat-rated temperature** - the outside air temperature below which the engine can hold its rated thrust constant. The Pratt & Whitney PW4000-94 family demonstrates the pattern clearly: the higher-rated versions have *lower* flat-rated temperatures. The lower ratings hold constant thrust to 33 °C; the highest 62,000 lb rating holds it only to 30 °C. For an aircraft whose whole purpose is long over-water sectors, where the diversion and alternate planning is sensitive to performance in warm conditions, that is not a trivial difference.

The same arithmetic then continues into the shop. An engine spending its life closer to its temperature limit accumulates damage faster, and a 747-400's ultra-long sectors - where engines routinely recorded double-digit engine flight hours per cycle - left very little room for waste. A new engine of a given rating has more margin than the same engine after a shop visit.

### Changing the rating

A thrust rating change is a ground maintenance action, and for the 747's PW4000 it is accomplished through the **electronic engine control programming plug**. This is not an informal adjustment: FAA airworthiness directive guidance treats a rating change made this way as an event with its own conditions, requiring the applicable cyclic limits to be applied for the period in which the change was made, and distinguishing engines that were new or overhaul-complete at the time from those that were not.

That regulatory attention is itself informative. An AD does not bother tracking a number unless changing it has consequences for the hardware - which is exactly the point. A rating change is closer to re-certifying the engine's operating envelope than to adjusting a preference.

### What it means to the operator

The decision is a genuine trade-off between three things:

- **Hot-and-high performance.** Routes through the tropics, or from hot airports, depend on being able to hold thrust and to meet takeoff and climb requirements at weight. A lower-rated engine may simply not make the published figure.
- **Takeoff field length.** The airport-planning documentation organises its takeoff field length tables by aircraft weight *and* by thrust setting, which is the clearest evidence that thrust is a variable the operator actively manages on each departure rather than a fixed constant. Reducing takeoff thrust where the runway allows it lowers wear and fuel burn.
- **Engine economics.** Time on wing, shop visit cost and the interval between removals are the largest single maintenance line on a 747, and the rating chosen has a direct effect on all three.

Because the change is a ground action through the engine control, it also interacts with fleet planning: engines could be moved between aircraft, and an operator could effectively standardise a rating across part of a fleet for maintenance simplicity or differentiate it for operational reasons.

### The weight context

Thrust rating only means something relative to weight, and the same planning documentation that lists the ratings also defines the weight envelope the 747 works within: maximum design taxi, landing and takeoff weights; operating empty weight; and **maximum design zero fuel weight**, from which maximum payload is derived. Those definitions are set out on the [weight and balance and loading](/boeing-747-internals/weight-and-balance-and-loading.html) page, and they are the frame of reference for every performance number the type has ever advertised.

### Related

- [Engines](/boeing-747-internals/engines.html) - the five engines and the aeroplanes they sold
- [Pratt & Whitney PW4000](/boeing-747-internals/pratt-whitney-pw4000.html) - the -400 mainstay
- [General Electric CF6](/boeing-747-internals/general-electric-cf6.html)
- [Rolls-Royce RB211-524](/boeing-747-internals/rolls-royce-rb211-524.html)

## From blue chemical toilets to vacuum

*URL: https://www.boeing-747.com/boeing-747-internals/water-and-waste-system.html*

Classic 747s flushed with recirculating chemical toilets that reused blue flushing fluid. The 747-400 introduced vacuum lavatories that use differential pressure to move waste into a holding tank, all drained through one ground servicing panel.

Waste management is a case study in how the 747 changed. Classic 747s carried tanks of blue, recirculated flushing fluid; the 747-400 brought in vacuum toilets that pull waste along narrow pipes with air, not water.

| Key facts |  |
|---|---|
| Classic 747 | Recirculating chemical toilets, blue holding fluid |
| 747-400 | Vacuum lavatories with single-point servicing |
| How vacuum works | Differential pressure between cabin and waste tank pulls waste along the line |
| Ground handling | One central servicing panel drains the whole waste system |

Aircraft train classes separate three water types: pressurised potable water for sinks and galleys, grey waste water from sinks, and black water from lavatories. Classic 747s used the recirculating-chemical approach for toilets, filtering and reusing the same fluid.

The 747-400 changed the game with **vacuum lavatories and single-point servicing**: differential pressure draws waste into a holding tank, far less water is needed, and every lavatory on the aircraft empties through one ground panel. The same vacuum architecture became standard across the 737, 757, 767 and 777 fleets.


### Three fluids, three systems

Airline water and waste is really three separate flows that share servicing points. Pressurised potable water feeds the galleys and sinks. Grey water comes from the sinks. Black water is the lavatory waste. Keeping them straight matters because grey water can often be dumped separately from black, and both have to be accounted for in the aircraft's weight and balance.

### Why the classic recirculated

The classic 747's lavatories used recirculating chemical toilets. A tank of blue flushing fluid was pumped through the bowl, and the waste was filtered and partly recirculated for reuse. It worked, and it conserved water, but the chemistry had to be managed carefully and the blue fluid was a persistent, visible feature of the classic cabin.

### The vacuum change

The 747-400 changed the architecture to vacuum lavatories with single-point servicing. A pressure differential between the cabin and the waste holding tank draws waste along narrow pipes, with no blue flushing fluid to manage. Far less water is required, and the whole system drains through one central ground panel, which simplified servicing enough that it was quickly adopted across Boeing's subsequent jetliners. The [cabin systems](/boeing-747-internals/cabin-systems.html) page covers the wider story of what the operator chose versus what Boeing certified.

### Related

- [Fuel system](/boeing-747-internals/fuel-system.html)
- [Hydraulic systems](/boeing-747-internals/hydraulic-systems.html)
- [Electrical system](/boeing-747-internals/electrical-system.html)
- [747-8 systems differences](/boeing-747-internals/747-8-systems-differences.html)

## The 747's forward-looking weather sensor

*URL: https://www.boeing-747.com/boeing-747-internals/weather-radar.html*

A nose-mounted radar that returns energy only from precipitation, tilted to stay level as the aircraft pitches, and dispatch-critical because it feeds predictive windshear detection.

The weather radar is the one 747 system whose job is to see something that is not there. It does not look at the sky; it looks for energy coming back from rain, and it paints what returns on the navigation display as a `WXR` page alongside the traffic and terrain presentations the crew already have.

### What it can and cannot see

Radar returns depend on hydrometeors - water in some form - reflecting or scattering the transmitted energy back to the antenna. That physical fact sets the limits, and they are worth being precise about because crews are trained to work around them:

- It sees **precipitation**, and the intensity of what returns is a reasonable proxy for how vigorous that precipitation is.
- It does **not** see clear-air turbulence. The classic in-flight turbulence encounter is in perfectly smooth-looking air, and the radar will show nothing.
- It is weak against **icing in air that is not producing a significant return**, which is a hazard in its own right.
- The beam has a **limited width**, so a cell narrower than the beam can be diluted or missed depending on where it sits in the beam.

This is the reason the aircraft's [terrain awareness](/boeing-747-internals/alerting-and-collision-avoidance.html) system uses its own onboard terrain database rather than the radar's returns. Radar tells the crew about weather; the terrain database tells them about the ground.

### The tilt problem, and auto tilt

A radar antenna is mounted in the nose and fixed to the airframe. But an airframe pitches - and an airliner pitches a great deal on rotation and in the flare. A fixed beam would therefore point progressively away from where the crew is looking, so the display would be showing a different slice of atmosphere than the one they believe they are examining.

The answer is **tilt**: the beam is deliberately tilted upward relative to the airframe so that, in level flight, it sweeps the horizon. The 747-400's minimum equipment list treats this as a distinct, separately despachable function - auto tilt may be inoperative provided the manual tilt function still operates - and it lists the auxiliary side panel displays as separately despachable too, with the explicit note that operators' alternate procedures *"should include reviewing windshear avoidance and windshear recovery procedures."*

That note is the clearest indication of how seriously the system is treated. A degraded radar is not just a loss of a picture; it is a loss of a tool the crew might otherwise rely on in a windshear encounter.

### Why it is dispatch-critical

The weather radar sits in the 747's minimum equipment list under ATA chapter 34, and the approved 747-400 entry is unusually detailed about the conditions under which an aircraft may depart with it unserviceable. In essence, a flight may commence with the radar unserviceable if:

- the display is provided to **only one pilot**, and the aircraft is flying only to a place where it is reasonably practicable for the system to be repaired; **or**
- the weather reports and forecasts available to the commander indicate that cumulonimbus or other potentially hazardous weather conditions **which could be detected by the system if it were working** are unlikely to be encountered on the intended route or any planned diversion from it - or the commander is satisfied that any such conditions will be met in daylight and can be seen and avoided.

In either case, the aircraft must be operated throughout in accordance with the relevant instructions in the operations manual.

The logic behind that wording is careful, and it is a good illustration of how these rules are constructed. The relief is written around **the hazards the radar would have detected** - radar was not the tool for the rest. Where the crew can establish that the specific hazard the radar exists to find is not going to be encountered, its absence is tolerable for that flight.

### The other job: finding the shear before it finds you

Beyond the weather picture, the radar is an input to **predictive windshear detection**. A predictive system uses the radar's returns ahead of the aircraft to identify a developing microburst before the aircraft enters it, which is worth an enormous amount of margin compared with a reactive system that only knows what has already happened.

That distinction is the whole argument for predictive detection. A reactive system triggers on an airspeed change the aircraft has already experienced, at which point the crew's options are limited to whatever altitude remains. FAA guidance on windshear approval discusses both approaches, and specifically notes that a fixed warning threshold that is appropriate at one altitude will not leave enough room to execute a go-around at a lower one - which is the argument for a variable, altitude-programmed threshold. The radar feed is what makes looking ahead the preferred strategy, and it is why the alerting priority scheme places predictive windshear warnings above terrain awareness cautions but below reactive windshear, which describes a situation the aircraft is already in.

### What replaced it, gradually

For a long time the 747's answer to "what is happening over the Atlantic" was to look out of the cockpit and interpret cloud shapes, with the radar as the only instrument. That changed on the type during its life, through approved modifications rather than new-build capability. Supplemental type certification records for the 747-400 show a long trail of connectivity installations, including the **Connexion by Boeing** satellite television and data system and its successor antenna, alongside cabin wireless installations and Iridium equipment.

By the time a 747-400 was retired, satellite reception had largely taken over the job the radar did on long over-water stages - providing the weather picture without the tilt, attenuation and clear-air blind spots that come with a 94-inch-band nose antenna. The radar remained on the aircraft, because it remains the instrument that sees vertically developed weather in front of the aircraft, and because the predictive windshear function depends on it.

### Related

- [Alerting and collision avoidance](/boeing-747-internals/alerting-and-collision-avoidance.html) - where the radar's output becomes a warning
- [Ice and rain protection](/boeing-747-internals/ice-and-rain-protection.html) - the hazards the radar partly cannot see
- [Navigation and avionics](/boeing-747-internals/navigation-and-avionics.html) - the display it is painted on
- [EICAS](/boeing-747-internals/eicas-747-400.html)

## The system that decides where the fuel goes

*URL: https://www.boeing-747.com/boeing-747-internals/weight-and-balance-and-loading.html*

Operator-specific weight and balance data, the cargo compartment load limits, and the position rules that decide which unit load devices may be loaded where on the main deck.

Some of the most consequential systems on a 747 are not on the aeroplane at all. Every operator holds its own **weight and balance control and loading manual**, and on a freighter that document decides which pallets may be placed where - and therefore what a given load actually earns.

### Every operator's manual is different

A 747 weight and balance manual is not a Boeing document sold off the shelf. It is written for a specific fleet, and it has to be. The regulations require the data to exist in a form that establishes the aircraft's weight and balance requirements and allowables, organised to an industry standard - the **ATA Specification No. 100**, *Specification for Manufacturers' Technical Data*.

Its structure is worth knowing, because it explains why the manual is so long:

| Part | Contains |
| --- | --- |
| **Chapter 1 - Control** | Weight and balance data specific to the operator's own aircraft, in modular subject packages |
| **Chapter 2 - Aircraft Reports** | For each delivered aircraft: make, model, serial number, registration, actual weighing data, and the inventory list for its delivery configuration |

Chapter 1 uses three-element **chapter-section-subject** numbers, so that fuel data sits in the 20-to-29 series and other topics each get their own block. Chapter 2 is the part that dates quickly: it is a snapshot of each individual airframe as delivered, including what was fitted. Change the seats, the entertainment, the galleys or the crew rest, and the aircraft's empty weight and centre of gravity move.

### The weight vocabulary

The airport-planning documentation defines the envelope, and these definitions are the frame for every performance figure the type has ever published:

| Term | Meaning |
| --- | --- |
| OEW | Operating empty weight - structure, powerplant, furnishings, unusable fuel, crew and equipment, excluding usable fuel and payload |
| MZFW | Maximum design zero fuel weight - the maximum weight before usable fuel is loaded |
| MTOW / MLW / MTW | Maximum design takeoff, landing and taxi weights |
| Maximum payload | MZFW minus OEW |
| Usable fuel | Fuel available for propulsion |

The relationship between the middle two is the one that shapes every 747 flight. **Payload is not independent of fuel.** Because payload is derived from zero fuel weight, carrying more fuel necessarily reduces what can be carried, which is why a freighter's revenue payload depends on how far the aircraft is going and how much it must divert.

### Loading limits are not uniform

For a freighter or Combi, the manual's cargo compartment load limits section is where the real engineering sits. It is organised into distinct categories, and the categories are not interchangeable:

- **Maximum allowable weights** for the upper deck, main deck and lower deck separately - the ceilings the basic monocoque can sustain.
- **Maximum combined linear load limits.**
- **Main deck unsymmetrical payload linear load limits** - because an off-centre load is more demanding than the same weight spread evenly.
- **Main deck centreline load limits.**
- **Allowable main deck running load versus centre wing tank fuel** - the interaction between cargo on the floor and fuel in the wing box directly above it.

That last item is the one that surprises people. A 747's main deck cargo sits beneath the centre wing section, and the loading limits for that area are expressed as a function of how much fuel is in the centre wing tanks. A full main deck and full centre wing tanks are not independent choices.

### Position rules, at bulkhead stations

The freighter's main deck is not an empty box that accepts pallets in any order. The loading manual restricts which unit load devices may go where, and it expresses those positions at **bulkhead stations** - fixed reference points along the fuselage. The rules are strictly directional:

- **Laterally forward** of one station, only the smallest pallet size codes may be used.
- **Longitudinally forward** of that same station, a wider set of codes is permitted.
- **Aft** of a much later station, a different set again is allowed.
- **Containers forward** of an earlier station are **height-limited**, specifically to guarantee clearance above the load so that air can circulate around the containers for **decompression and smoke detection**.

That last rule is a fire protection requirement expressed as a loading instruction. The cargo hold is smoke-detected - see the [fire detection and extinguishing](/boeing-747-internals/fire-detection-and-extinguishing.html) page - and smoke detection only works if air can move. A container stacked flush to the ceiling would defeat it.

The freighter's [cargo-loading system](/boeing-747-internals/cargo-loading-system.html) exists to serve this: the nose door swings up and pallets and containers up to 40 ft are rolled straight in on motor-driven rollers, and the operator's loading manual then decides the order.

### Restraint is the part that cannot be improvised

The minimum equipment list permits a **cargo restraint system** to be inoperative or missing on a conditional basis: the compartment may still be operated provided acceptable cargo loading limits from an approved source - an Approved Cargo Loading Manual, Cargo Handling Manual, or Weight and Balance Manual - are observed. Otherwise it must remain empty.

The condition is the point. Restraint systems are what make an off-centre load survivable, and the relief is permitted only because a lower limit is imposed instead. This is the same pattern as the [hydraulic systems](/boeing-747-internals/hydraulic-systems.html) and the flight controls: the primary protection may be deferred, but never without a documented substitute.

### Where the -400ER breaks the pattern

The 747-400ER can carry up to two 3,060 US gallon tanks in the **forward lower cargo compartment**, as the planning documentation notes. Those tanks only exist because that space was no longer needed for cargo - and the 747-400ERF, with its greater cargo capacity, is specifically **not** fitted with them.

So the aeroplane with the most fuel capacity in the -400 family is also the one whose forward hold is spoken for, and the weight and balance manual is what reconciles the [fuel system](/boeing-747-internals/fuel-system.html) configuration, the loading plan and the payload for each individual departure.

### Related

- [Cargo-loading system](/boeing-747-internals/cargo-loading-system.html) - how the freight gets aboard
- [Fuel system](/boeing-747-internals/fuel-system.html) - the other half of the loading calculation
- [The 747-400ER](/boeing_747_family/747-400er.php) - the variant whose hold became a fuel tank
- [Fire detection and extinguishing](/boeing-747-internals/fire-detection-and-extinguishing.html) - why airflow above the cargo matters

## Boeing 747 Production Data

*URL: https://www.boeing-747.com/boeing-747-production-data.html*

Boeing completed 1,574 747s: 251 in the 747-100 group including the SP, 393 747-200s, 81 747-300s, 694 747-400s and 155 747-8s.

Boeing built **1,574 Boeing 747s** over the programme's 54-year production run. The final aircraft, a 747-8 Freighter for Atlas Air, was delivered on 31 January 2023.

### Production by generation

| Generation | Aircraft built | Share of production | Included variants |
|---|---:|---:|---|
| 747-100 group | 251 | 15.9% | 747-100, 747-100B, 747SR and 747SP |
| 747-200 | 393 | 25.0% | Passenger, freighter, convertible and combi models |
| 747-300 | 81 | 5.1% | Passenger, SR and combi models |
| 747-400 | 694 | 44.1% | Passenger, domestic, ER, freighter and combi models |
| 747-8 | 155 | 9.8% | 48 Intercontinentals and 107 freighters |
| **Total** | **1,574** | **100%** | All production aircraft |

The [747-400](/boeing_747_family/747-400.php) was the most-produced generation, accounting for about 44% of all 747s. The [747-8](/boeing_747_family/747-8.php) closed the programme with 155 aircraft, more than two-thirds of them freighters.

### What the categories mean

The 747-100 group combines the standard -100, the strengthened -100B, Japanese short-range SR aircraft and the shortened [747SP](/boeing_747_family/747-100sp.php). Later rows group each generation's passenger, freighter, combi and special-range production variants.

These are **aircraft completed**, not orders, conversions or aircraft still operating. Passenger-to-freighter conversions therefore do not add to the production total. Unbuilt studies such as the 747-500X and 747 trijet are excluded.

### Method and limitations

The generation totals are reconciled to Boeing's final programme statement of 1,574 aircraft. Boeing's current programme and airport-planning pages are used to confirm the official model groupings. Percentages are calculated from the unrounded aircraft counts and rounded to one decimal place, so displayed percentages may not sum perfectly due to rounding.

For individual sub-variants, use the [complete 747 family guide](/boeing_747_family/). Where historical sources use different labels for combi or short-range aircraft, this dataset retains Boeing's broad generation categories rather than implying more precision than the source supports.

### Download and reuse

- [CSV: production totals by generation](/data/boeing-747-production-by-generation.csv)
- [JSON: production totals by generation](/data/boeing-747-production-by-generation.json)

The downloadable dataset is licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/). Attribute Boeing-747.com and link to this page. Boeing's source material remains subject to Boeing's own terms.

### Related references

- [Boeing 747 specifications](/specifications.html)
- [Boeing 747 timeline](/747_timeline.php)
- [How to identify Boeing 747 variants](/features/identify-boeing-747-variants.html)

## Contact

*URL: https://www.boeing-747.com/contact_me.php*

How to reach Boeing-747.com with corrections, additions and photo submissions.

**[boeing747@0a0.info](mailto:boeing747@0a0.info)**

Corrections and additions are genuinely welcome. This site covers 54 years of one aircraft type across nearly 200 pages, and there is certainly still something on it that is wrong.

### Especially useful

**Corrections.** If a date, a production number or an aircraft identification is wrong, please say so - ideally with a source. Several long-standing errors inherited from the original site have already been fixed this way, including a claim that the US Air Force bought seven [Airborne Laser](/special_boeing_747s/yal-1_airborne_laser.php) aircraft when only one was ever built.

**Identifications.** A number of photographs in the [album](/photo_album/) are described only in general terms because the airline, registration or variant could not be confirmed. If you can identify one, that is a real improvement.

**Photographs.** Particularly of variants that are thin on images here - the [747-100F](/boeing_747_family/747-100F.php), [747-100SR](/boeing_747_family/747-100sr.php), [747-300M](/boeing_747_family/747-300m.php) and the [Yellowstone](/boeing_747_family/Yellowstone_project.php) proposals have no photograph at all. Please only send images you own or that are clearly licensed for reuse, and say which.

**Broken links or missing pages.** Every URL from the original site should still work. If one does not, that is a bug worth reporting.

### Before writing

A few things that come up often are already answered:

- [Which airlines still fly the 747](/airlines/), and when each one retired it
- [How much a 747 cost](/blog/how-much-does-a-boeing-747-.html) - and why Boeing stopped publishing list prices
- [Why the 747-400 has winglets](/blog/why_does_a_boeing_747-400_have_winglets.php), and why the 747-400D does not
- [Whether the 747 is still in production](/news.php) - it is not; the last was delivered in January 2023
- [Every page on the site](/site_map.php), or [browse by topic](/tag-cloud.html)

### About this site

Boeing-747.com is an independent enthusiast site. It is **not affiliated with The Boeing Company**, and nothing here is an official Boeing publication.

Images credited to Boeing, NASA, the US Air Force and Wikimedia Commons remain the property of their respective owners and are used here for reference and educational purposes. If you hold rights to an image on this site and want it removed or credited differently, email [boeing747@0a0.info](mailto:boeing747@0a0.info) and it will be dealt with promptly.

See also the [terms of use](/terms-of-use.html) and [privacy policy](/privacy-policy.html).

## Editorial and Corrections Policy

*URL: https://www.boeing-747.com/editorial-policy.html*

Boeing-747.com prioritises primary sources, dates changeable information and corrects material errors transparently.

Boeing-747.com is an independent reference edited by [Alykhan Virani](/about-alykhan-virani.html). This policy describes the standard used for new and substantially revised material.

### Source hierarchy

Sources are preferred in this order:

1. Boeing technical documents, programme records and contemporary releases
2. Civil-aviation authorities and official accident-investigation bodies
3. Airlines, airports, museums, NASA and other responsible institutions
4. Contemporary books, journals and established aviation databases
5. Community-maintained references, used as leads rather than sole proof of a disputed fact

Technical, safety and accident pages should cite the controlling report or document wherever it is publicly available. A source appearing in a list means it supports material on that page; it is not an endorsement of every statement the source publishes.

### Dates and current information

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Fleet counts, routes, museum access and other changeable facts are presented as dated snapshots. Visitors should check the linked operator or institution before making travel plans.

### Uncertainty

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## The Boeing 747-8

*URL: https://www.boeing-747.com/everything-about-the-boeing-747-8/*

The 747-8 was the final and largest 747 generation, stretched 18.3 ft over the 747-400, with a new wing and GEnx-2B engines. It ended production in January 2023.

The 747-8 was the fourth and final generation of the Boeing 747, announced on 14 November 2005 and built until January 2023. It stretched the fuselage, replaced the wing outright, and hung four new engines under it - while keeping enough in common with the 747-400 that pilots could move between the two on a single type rating.

It was built in two versions: the **747-8 Freighter** for cargo, which flew first and sold best, and the **747-8 Intercontinental** for passengers, which found only a handful of customers.

### The main changes

| | |
|---|---|
| Length | 250 ft 2 in (76.25 m) - 18.3 ft longer than the 747-400 |
| Wing | Entirely new, with raked wingtips in place of winglets |
| Engines | Four General Electric GEnx-2B |
| Flight deck | 787-derived displays, same type rating as the 747-400 |
| Noise | Footprint about 30 percent smaller than the 747-400 |

The stretch came from two fuselage plugs - 13 ft 4 in ahead of the wing and 5 ft behind it - which made the 747-8 the longest airliner in the world at the time.

### In this section

- [How much bigger the 747-8 is](/everything-about-the-boeing-747-8/new-size-of-the-boeing-747-.html) - where the stretch went
- [The 747-8 compared to the 747-400](/everything-about-the-boeing-747-8/Boeing-747-8-compared-to-the-747-400.html)
- [The new wing design](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html)
- [Engines optimised for the 747-8](/everything-about-the-boeing-747-8/engines-optimized-for-the-7.html) - the GEnx-2B
- [The flight deck](/everything-about-the-boeing-747-8/boeing-747-8-flight-deck.html)
- [The Intercontinental, the passenger version](/everything-about-the-boeing-747-8/boeing-747-8-intercontinental-passenger-version.html)
- [The Freighter interior](/everything-about-the-boeing-747-8/boeing-747-8-freighter-interior.html)
- [Improved flying experience](/everything-about-the-boeing-747-8/747-8-improved-flying-experience.html)
- [Environmental factors](/everything-about-the-boeing-747-8/747-8-environmental-factors.html)
- [New environmental control system](/everything-about-the-boeing-747-8/new-environmental-control-system-ecs.html)
- [Reduced maintenance requirements](/everything-about-the-boeing-747-8/boeing-747-8-reduced-maintenance-requirements.html)
- [E-enabled capabilities](/everything-about-the-boeing-747-8/e-enabled-capabilities-of-the-boeing-747-8.html)
- [Rejected take-off test](/everything-about-the-boeing-747-8/boeing-747-8-rejected-take-off-test.php)
- [Intercontinental announcement](/everything-about-the-boeing-747-8/boeing-747-8i-announcement.html)
- [First flight announcement](/everything-about-the-boeing-747-8/boeing-747-8i-first-flight-flight-announcement.php)
- [First flight video](/everything-about-the-boeing-747-8/boeing-747-8-intercontinent-first-flight-video.php)

### How it ended

The freighter carried the programme. Airlines largely stopped buying very large passenger aircraft during the 747-8's sales life, and the Intercontinental attracted few customers - Lufthansa was the only airline to order it in quantity. The freighter, with its nose door and main-deck volume, had no direct equivalent and kept the line open until the last aircraft was handed to Atlas Air on 31 January 2023.

## The 747-8 and the environment

*URL: https://www.boeing-747.com/everything-about-the-boeing-747-8/747-8-environmental-factors.html*

The 747-8 cut fuel burn and carbon emissions by about 16 percent per seat against the 747-400, with a noise footprint roughly 30 percent smaller.

Environmental performance was central to the 747-8's sales case, because by the mid-2000s noise and emissions limits were increasingly deciding where and when large aircraft could operate at all.

### Emissions

The 747-8 meets or exceeds the limits then in force for hydrocarbons, carbon monoxide, smoke and oxides of nitrogen.

The larger figure is fuel burn. The new wing and the GEnx-2B engines together cut consumption by around **16 percent per seat** against the 747-400 - and because carbon dioxide output is directly proportional to fuel burned, that is also roughly a 16 percent reduction in CO₂ per seat.

### Noise

The 747-8's **noise footprint is about 30 percent smaller** than the 747-400's. The footprint is the area on the ground exposed to a given noise level, so a 30 percent reduction means noticeably fewer people underneath the departure and approach paths are affected.

Several things contribute: the chevron nacelles on the GEnx engines, the higher bypass ratio, and wing features that were chosen partly for noise - the drooping ailerons that act as extra high-lift devices when the flaps extend, the redesigned flap tracks and fairings, and the gapped Krueger flaps.

### Why Heathrow mattered

Boeing made a specific claim that shows what the noise reduction was worth commercially: the 747-8 would be able to operate at **London Heathrow around the clock**, while most aircraft are subject to a night-time curfew on noise grounds.

For an airline, an aircraft that can use a slot-constrained airport at hours when rivals cannot is worth real money - which is why noise engineering on the 747-8 was not simply a matter of regulatory compliance.

## The 747-8 cabin experience

*URL: https://www.boeing-747.com/everything-about-the-boeing-747-8/747-8-improved-flying-experience.html*

The 747-8 cabin uses 787-derived architecture - curved ceilings, larger windows and LED lighting - in the quietest 747 cabin Boeing built.

The 747-8's cabin was where Boeing applied what it had learned on the 787, and it is the part of the aircraft passengers actually notice.

### What changed

The ceiling is sculpted and curved, and the overhead bins are designed to look as though they are attached to it rather than cut into it - the same visual trick used on the 787, which makes the cabin feel taller and wider than the numbers suggest.

The windows are around **16 percent larger** than those on the 747-400, closer in size to those on the 777 and 767-400ER.

Lighting is solid-state LED throughout. Because the colour can be varied, cabin crew can run a lighting programme across a long flight - daylight tones at boarding, warm sunset shades at dinner, low blue light overnight - which is intended to make the passage of time feel less abrupt on very long sectors.

### Quiet

Boeing described the 747-8 cabin as the quietest of any 747. Part of that comes from the GEnx engines and their chevron nacelles; part from cabin insulation. Lufthansa went further with its first-class cabin, using suede wall and floor surfaces to absorb sound, and marketed it as the quietest first-class cabin in the world.

### The staircase

One small change carries a lot of the aircraft's character. On the 747-300 and 747-400, the stair to the upper deck is straight and narrow. On the 747-8 it is a curved, sweeping staircase - moved back to the left-hand side after Lufthansa's order - and it is the first thing many passengers remember about the aircraft.

### Space that came from elsewhere

Some of the cabin's usable floor was recovered rather than added. Crew rest berths and galley storage were moved into the crown space above the passenger cabin, where the air conditioning ducts and wiring run. Freeing that area up put more of the main deck and lower hold back into revenue service.

## 747-8 vs 747-400

*URL: https://www.boeing-747.com/everything-about-the-boeing-747-8/Boeing-747-8-compared-to-the-747-400.html*

The 747-8 is externally similar to the 747-400 but has a longer fuselage, a new higher-aspect-ratio wing, higher-bypass engines and a higher gross weight.

From a distance the two look alike. That was intentional - Boeing wanted an aircraft that fitted existing 747 gates, ground equipment and pilot pools. Underneath, most of the important parts are new.

### The differences that matter

| | 747-400 | 747-8 |
|---|---|---|
| Length | 231 ft 10 in | 250 ft 2 in |
| Wingtip | Upright winglets | Raked wingtips |
| Wing | 747-400 design | New, higher aspect ratio |
| Engines | PW4000 / CF6 / RB211 | GE GEnx-2B only |
| Flight deck | CRT displays | LCD, 787-derived |
| Type rating | - | Shared with the 747-400 |

### How to spot one

The quickest tell is the wingtip. The 747-400 carries upright winglets; the 747-8 replaces them with raked tips that sweep back rather than up. After that, look at the engines - the GEnx-2B nacelles have serrated chevron trailing edges, which no earlier 747 has - and at the upper deck, which on the 747-8 runs slightly further back.

### What stayed the same

The height is the same, the wingspan stays inside the same airport gate box, and the type rating is shared. An airline flying both could run one pilot pool across the two, with roughly three days of differences training to convert a 747-400 crew.

That commonality was central to the sales case. It meant an operator could add 747-8s to an existing 747-400 fleet without rebuilding its training, spares and ground handling around a new type.

## Boeing 747-8 Flight Deck

*URL: https://www.boeing-747.com/everything-about-the-boeing-747-8/boeing-747-8-flight-deck.html*

The 747-8 flight deck uses 787-derived LCD displays and adds an airport moving map, yet shares a type rating with the 747-400 - about three days of differences training.

The 747-8 flight deck was redesigned around technology developed for the 787, while deliberately staying close enough to the 747-400 that the two share a type rating. That combination - newer equipment, same licence - is the point of it.

### What changed from the 747-400

Liquid-crystal displays replace the cathode-ray-tube screens used throughout the 747-400 flight deck. Behind them sit a new flight management computer, integrated approach navigation, a global navigation satellite system landing capability with autoland, navigation performance scales and a vertical situation display.

Boeing describes five features in particular as setting the 747-8 flight deck apart.

### Electronic flight bag

The Boeing Class 3 electronic flight bag, an option on the 747-8, brings digital information management to the flight deck. It substantially reduces the need for paper and improves communication between flight crews, dispatchers and air traffic management.

### Vertical situation display

The vertical situation display gives pilots a clear view of the aircraft's current and projected flight path. It warns the crew early if the trajectory conflicts with terrain, or deviates from the intended approach path - including a missed glideslope intercept, which a purely lateral display makes hard to spot.

### Flight management computer

The flight management computer can hold the entire worldwide navigation database, and was specified with enough headroom for the growth in navigation data expected over the following two decades.

### Electronic checklist

Electronic checklists replace paper ones. They are quicker to work through, easier to revise and distribute, and airlines can customise them to their own procedures.

### Airport moving map

The airport moving map combines high-fidelity taxi charts with an electronic map of taxiways, runways and gates, and shows the aircraft's own position on it. Integrated into the forward display, it lets both pilots see where they are on the ground without looking away.

It's an extra tool to let you know where you are on the runway surface.
>
- Jim Proulx, Boeing Commercial Airplanes Communications

That matters most in poor visibility, where runway and taxiway confusion has historically been a real hazard.

### Commonality with the 747-400

For all the new equipment, the 747-8 has the same type rating as the 747-400. An airline can therefore fly both types from a single pilot pool, which helps schedule flexibility and pilot productivity. Boeing put the differences training for a 747-400 pilot at around three days.

This is the same logic Boeing applied across its range: make the newer aeroplane feel familiar enough that the conversion cost stays small, and airlines will find it easier to justify.

## Inside the 747-8 Freighter

*URL: https://www.boeing-747.com/everything-about-the-boeing-747-8/boeing-747-8-freighter-interior.html*

The 747-8F carries 16 percent more revenue cargo volume than the 747-400F and keeps the upward-hinging nose door that lets it swallow full-length loads.

The freighter was the reason the 747-8 programme survived as long as it did. It was the version that flew first, sold best, and built the last 747 to leave Everett.

### The nose door

The defining feature is inherited from the very first 747. Because the flight deck sits above the main deck rather than in the nose, the entire front of the aircraft can hinge upwards, opening the main deck end-on.

That matters for anything long. A side door limits you to what can be swung through an opening amidships; a nose door lets a load be driven straight in along the length of the aircraft. Industrial machinery, aircraft engines, helicopter fuselages and satellite components are the sort of cargo that keeps the capability commercially relevant.

The 747-8F retains it, and also has a side cargo door on the main deck.

### What the stretch adds

At **18.4 ft (5.6 m)** longer than the 747-400F, the 747-8F carries around **16 percent more revenue cargo volume**. In practical terms that is four additional main-deck pallet positions, plus extra containers and pallets in the lower holds.

For a freight operator, volume often binds before weight - much air cargo is bulky rather than dense - so extra usable space converts directly into revenue.

### Why it outlived the passenger version

There was no like-for-like replacement. Twin-engined freighters such as the 777F carry a great deal, but none of them offers a nose door or the 747's main-deck cross-section. That kept the 747-8F in demand with Cargolux, Atlas Air, UPS, Kalitta and others long after airlines had stopped buying the passenger version - and it is why the final 747 of all was a freighter.

## 747-8 Intercontinental first flight video

*URL: https://www.boeing-747.com/everything-about-the-boeing-747-8/boeing-747-8-intercontinent-first-flight-video.php*

Video of the Boeing 747-8 Intercontinental's maiden flight from Paine Field on 20 March 2011.

The 747-8 Intercontinental left Paine Field for the first time on **20 March 2011**, in the orange and red livery Boeing used throughout the flight test programme.

The aircraft flew a conservative first sortie - gear down, limited envelope, basic handling and systems checks - before returning to Everett the same day.

More on the flight and what followed is on the [first flight announcement](/everything-about-the-boeing-747-8/boeing-747-8i-first-flight-flight-announcement.php) page.

## Boeing 747-8 Passenger Version: Cabin and Airline Demand

*URL: https://www.boeing-747.com/everything-about-the-boeing-747-8/boeing-747-8-intercontinental-passenger-version.html*

The 747-8 Intercontinental seats about 467 in three classes, 51 more than the 747-400, and entered service with Lufthansa in June 2012.

The 747-8 Intercontinental is the passenger version of the 747-8 - the last passenger 747 Boeing built, and the least commercially successful part of the programme.

### What it offered

The stretch is worth **51 more seats** than a 747-400 and about **26 percent more cargo volume** in the holds, which matters more than it sounds: belly freight is a significant part of a long-haul aircraft's earnings. A typical three-class layout seats around 467, and range is about 8,000 nautical miles.

Inside, the cabin borrows heavily from the 787. The overhead bins are curved and appear attached to a sculpted ceiling rather than cut into it, the windows are around 16 percent larger than the 747-400's, and solid-state LED lighting can be tuned through the flight to mimic times of day.

The upper deck was extended slightly, and the staircase to it became a curved, sweeping design rather than the narrow straight stair of the 747-300 and -400.

### Who bought it

Very few. Lufthansa launched the variant in December 2006 and remains by far the largest operator. The confirmed airline operators are Lufthansa, Korean Air and Air China, and a small number were built as VIP transports for governments and private customers.

The reasons were structural rather than specific to the aircraft. By the time the Intercontinental was on sale, airlines were moving away from very large four-engined aircraft toward twin-engined widebodies like the 777 and 787, which fly similar routes on half the engines. The Airbus A380 struggled in the same market and for the same reasons.

### The one that carries presidents

Two 747-8 airframes originally built for a customer that never took delivery became the basis of the [VC-25B](/special_boeing_747s/boeing_vc25_air_force_one.php), the aircraft intended to replace the VC-25A as Air Force One. A third 747-8, [gifted by Qatar](/special_boeing_747s/vc-25b-bridge-qatar-747-8.html), entered US service in 2026 as an interim presidential transport.

## The Boeing 747-8 wing

*URL: https://www.boeing-747.com/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html*

The 747-8 wing is an entirely new design with advanced airfoils, raked wingtips and a 787-derived load-alleviation system that let Boeing save 1,400 lb of structure.

The 747-8's wing is not a modified 747-400 wing. It is a new design, developed using computational fluid dynamics and validated in wind tunnel testing, and it is the single biggest engineering change between the two aircraft.

### What the new wing does

Boeing lists the changes as:

-   Advanced technology airfoils for improved overall performance and greater fuel capacity.
-   Fly-by-wire spoilers and outboard ailerons to save weight.
-   Double-slotted inboard and single-slotted outboard flaps to improve low-speed performance and noise.
-   Advanced-technology raked tip to reduce cruise drag.
-   Aileron droop to reduce noise and provide improved low-speed performance.
-   Redesigned flap tracks with optimised flap-track fairings to improve low-speed performance and noise.
-   Redesigned Krueger flaps with gapped configuration to improve low-speed performance.

Together these give improved aerodynamics and larger fuel capacity, while allowing the aircraft to cruise as fast as or faster than any other passenger aircraft.

### Raked wingtips instead of winglets

The most visible change is at the tip. The 747-400's upright winglets are gone, replaced by raked wingtips - an extension swept sharply back rather than turned upwards - which increase lift and reduce drag at cruising speed.

### Manoeuvre load alleviation

The wing's fly-by-wire spoilers and ailerons make possible a flight control feature called a manoeuvre load-alleviation system. Pioneered on the 787 Dreamliner, it changes the distribution of lift across the wing during non-normal flight conditions, reducing the load carried by the outboard section.

The payoff is structural. Because the wing never has to absorb the peak outboard loads it otherwise would, Boeing was able to make the structure smaller - **saving about 1,400 pounds** without compromising structural integrity.

### Flaps, ailerons and noise

Several elements of the design target noise as much as performance. When the flaps are extended, the ailerons automatically deflect and act as additional high-lift devices, improving takeoff and landing performance while reducing noise. The redesigned flap tracks and their fairings, and the gapped Krueger flaps on the leading edge, work to the same end.

The result, by Boeing's figures, is a **noise footprint about 30 percent smaller** than the 747-400's. That has an operational consequence: Boeing said the 747-8 would be able to use London Heathrow around the clock, where most aircraft face a night curfew on noise grounds.

### What it adds up to

Boeing's case for the 747-8 rested heavily on this wing and the GEnx-2B engines hung beneath it. The company positioned the aircraft as the only passenger type in the 400 - 500 seat market, with engines burning about 16 percent less fuel per seat than the 747-400's and around 11 percent less than the Airbus A380's.

## 747-8 maintenance

*URL: https://www.boeing-747.com/everything-about-the-boeing-747-8/boeing-747-8-reduced-maintenance-requirements.html*

The 747-8 has longer maintenance intervals than the 747-400, using fewer consumables and spending less time out of service.

Maintenance economics decide whether a long-haul aircraft makes money. An aeroplane in a hangar earns nothing, and a widebody check occupies a large facility and a large team for days.

### Longer intervals

The 747-8's maintenance programme has **longer intervals between checks** than the 747-400's. The consequences follow directly:

- Fewer consumables are used across the aircraft's life.
- Less waste is produced.
- The aircraft spends **less time out of service**, which is the number an airline's planners care about most.

### Commonality on the ground

The 747-8 also kept a great deal in common with the 747-400 in the places that touch ground operations. Door sizes and positions and ground service connections were largely retained, so an operator's existing steps, loaders, catering trucks and servicing equipment continued to fit.

For an airline adding 747-8s to an existing 747-400 fleet, that avoided a second set of ground equipment at every station it served - a cost that can quietly exceed the price difference between aircraft types.

### Part of a wider pattern

This fits the same logic as the shared type rating on the [flight deck](/everything-about-the-boeing-747-8/boeing-747-8-flight-deck.html) and the reuse of the 767-400ER [environmental control system](/everything-about-the-boeing-747-8/new-environmental-control-system-ecs.html). Boeing was selling an aircraft that was substantially new where it mattered aerodynamically, and deliberately familiar everywhere that would otherwise cost an operator money to adopt.

## The rejected take-off test

*URL: https://www.boeing-747.com/everything-about-the-boeing-747-8/boeing-747-8-rejected-take-off-test.php*

Boeing aborted a take-off in a maximum-weight 747-8 Freighter on deliberately worn brakes, then left it standing to prove it would not catch fire.

The rejected take-off test is one of the most demanding things done to an airliner during certification, and it is deliberately staged at the worst possible moment.

### What was done

In April, Boeing's Test & Evaluation team took a **747-8 Freighter** to a long runway in California. The aircraft was loaded to its maximum take-off weight, and its brakes were deliberately worn down to the limit at which an airline would still be permitted to dispatch it.

The crew then accelerated to the aircraft's decision speed and aborted, bringing it to a stop using the brakes alone - no thrust reversers, because certification cannot assume they will work.

### Why it is so severe

An abort at maximum weight and maximum speed converts an enormous quantity of kinetic energy into heat, almost all of it in the brakes. They glow, the tyres reach temperatures where their fuse plugs are designed to melt and deflate them deliberately, and the wheels can catch fire.

That is the second half of the test. After stopping, the aircraft must be left standing for a set period without fire crews intervening, to prove the fire will not spread. In service, this is the margin that gives an evacuation time to happen.

### What it proves

Passing means the aircraft can survive the worst case an airline can legally present it with: heaviest, fastest, on the most worn brakes permitted. Not the aircraft as delivered - the aircraft on the last day before a brake change.

The 747-8 Freighter completed the test as part of a programme that also included extreme structural and systems testing before the type was certified.

## Launching the 747-8 Intercontinental

*URL: https://www.boeing-747.com/everything-about-the-boeing-747-8/boeing-747-8i-announcement.html*

Boeing launched the 747-8 on 14 November 2005 with freighter orders, and Lufthansa became the first airline to order the passenger Intercontinental on 6 December 2006.

Boeing launched the **747-8 family on 14 November 2005**. The launch orders were for freighters - from **Cargolux** and **Nippon Cargo Airlines** - which set the tone for the whole programme.

The passenger version waited another year. On **6 December 2006, Lufthansa became the first airline to order the 747-8 Intercontinental**, and it remains the largest operator of the type.

### Why the freighter went first

The order sequence was not an accident. By 2005 the market for very large passenger aircraft was already narrowing, as airlines shifted toward twin-engined widebodies that could fly the same routes with two engines instead of four.

Air freight was different. The 747 freighter's nose door and main-deck cross-section had no equivalent, and operators who needed that capability had nowhere else to go. Boeing launched into the demand that actually existed.

### What Boeing promised

The pitch for the Intercontinental was an aircraft that was new where it counted - a stretched fuselage, an entirely new wing, GEnx-2B engines and a 787-derived flight deck - while remaining familiar enough that a 747-400 operator could adopt it cheaply, sharing a type rating and most ground equipment.

Lufthansa aside, few airlines took it up. Beyond a handful of carriers and some VIP customers, the Intercontinental never found the volume Boeing had hoped for, and it was the freighter that carried the programme through to its end in 2023.

## The 747-8 Intercontinental first flight

*URL: https://www.boeing-747.com/everything-about-the-boeing-747-8/boeing-747-8i-first-flight-flight-announcement.php*

The 747-8 Intercontinental first flew from Paine Field, Everett, on 20 March 2011, thirteen months after the 747-8 Freighter.

The **747-8 Intercontinental first flew on 20 March 2011** from Paine Field, alongside Boeing's Everett factory - thirteen months after the 747-8 Freighter had made the type's maiden flight on 8 February 2010.

It flew in Boeing's orange and red launch livery, a scheme chosen to mark the aircraft out from every other 747 and used throughout the flight test programme.

### What a first flight is for

A maiden flight is a deliberately conservative exercise. The gear stays down, the envelope stays narrow, and the crew works through basic handling, engine behaviour and systems checks before returning to the same airfield.

The real work follows: months of flight testing across the full range of weights, speeds and altitudes, plus ground testing including the [rejected take-off test](/everything-about-the-boeing-747-8/boeing-747-8-rejected-take-off-test.php) and structural loading, before the aircraft can be certified.

### What came next

Certification followed in December 2011. The first Intercontinental was delivered to **Lufthansa in May 2012**, and the type entered scheduled service on **1 June 2012** - five and a half years after Lufthansa placed the launch order.

## The e-Enabled 747-8

*URL: https://www.boeing-747.com/everything-about-the-boeing-747-8/e-enabled-capabilities-of-the-boeing-747-8.html*

The 747-8 is e-Enabled, transferring maintenance and operational data to and from ground systems over wireless links to speed up turnarounds and troubleshooting.

The 747-8 is fully **e-Enabled**: it can move data between the aircraft and an airline's ground systems using wireless links, without anyone carrying it by hand.

### What it replaced

Older aircraft handled data physically. Navigation database updates, performance figures, cabin logs and fault data arrived and left on disks, cards or paper, carried to and from the flight deck by an engineer or a member of crew. Every transfer was a task somebody had to schedule, perform and record.

### What changes

With the aircraft e-Enabled, that traffic happens automatically when the aircraft is within range of a ground wireless network - typically as soon as it arrives on stand.

The practical effects are all about time:

- **Faster turnarounds**, because a routine data task no longer needs a person on board.
- **Faster troubleshooting**, because fault information can reach engineering while the aircraft is still inbound. Parts and specialists can be waiting at the gate rather than being called out once a problem is found.
- **Fewer transcription errors**, since figures move directly between systems.

### Connected to the flight deck

The [electronic flight bag](/everything-about-the-boeing-747-8/boeing-747-8-flight-deck.html) is the crew-facing end of the same idea. It replaces the paper library pilots once carried - charts, manuals, performance tables - with digital documents that can be revised centrally and distributed automatically.

Taken together, this was Boeing positioning the 747-8 as, in its own words, essentially a flying computer: an aircraft that participates in an airline's information systems rather than sitting outside them.

## The GEnx-2B engine

*URL: https://www.boeing-747.com/everything-about-the-boeing-747-8/engines-optimized-for-the-7.html*

Four GEnx-2B engines power the 747-8, sharing a core with the 787's GEnx but optimised for the 747 and fitted with noise-reducing chevrons.

The 747-8 is powered by four **General Electric GEnx-2B** engines. It was the first 747 offered with a single engine choice - every earlier generation let the customer pick between Pratt & Whitney, General Electric and Rolls-Royce.

### Shared with the 787

The GEnx-2B shares its core and much of its technology with the GEnx-1B that powers the 787 Dreamliner, but the two are not interchangeable. The 747-8's version has a smaller fan and is tuned for a four-engined aircraft with different thrust and installation requirements.

The commonality still matters commercially: it spreads development and support costs across two programmes, and gives operators of both types overlapping spares and maintenance knowledge.

### What it delivers

Compared with the CF6 engines used on many 747-400s, the GEnx-2B offers substantially better fuel efficiency, and the improvement carries straight through to carbon emissions. Boeing's figure for the aircraft as a whole was around **16 percent less fuel per seat** than the 747-400.

### Chevrons

The most recognisable feature is the sawtooth trailing edge of the nacelle. Those chevrons mix the exhaust flow with surrounding air more gradually, which cuts jet noise - one of the contributions to the 747-8's noise footprint being about 30 percent smaller than the 747-400's.

They are also the easiest way to identify a 747-8 from the ground, since no earlier 747 has them.

### The performance improvement package

GE and Boeing continued developing the engine after entry into service. A performance-improvement package raised efficiency further, and the first 747-8 delivered with it - a Freighter for Cathay Pacific - was handed over in December 2013.

## The 747-8 environmental control system

*URL: https://www.boeing-747.com/everything-about-the-boeing-747-8/new-environmental-control-system-ecs.html*

The 747-8's environmental control system is derived from the 767-400ER, with digital control, lighter weight and improved reliability.

An environmental control system is one of those parts of an aircraft nobody thinks about unless it stops working. It conditions the air in the cabin and flight deck, holds cabin pressure at a comfortable equivalent altitude, and keeps temperature and ventilation stable from the ground to 40,000 feet.

### What the 747-8 uses

The 747-8's system is an advanced ECS closely related to the one developed for the **767-400 Extended Range**, adapted to a much larger aircraft.

Three things distinguish it from what came before:

- **Digital control.** The system is managed electronically rather than by older pneumatic and analogue logic, which allows finer regulation and better fault detection.
- **Lower weight.** It is lighter than the system it replaces - weight saved anywhere on an airframe is fuel saved on every flight.
- **Increased reliability** and reduced maintenance, which matters on a system that cannot be deferred: an ECS fault can ground an aircraft or force a descent.

### Why reuse a 767 system

Reusing proven system architecture across programmes was a consistent theme of the 747-8. The flight deck borrowed from the 787, the engines shared a core with the 787's, and the ECS came from the 767-400ER.

Each of those decisions reduced development risk and cost on an aircraft that had to be built and sold economically in a shrinking market for very large aeroplanes - and it meant the systems arriving on the 747-8 already had service history behind them.

### Where the air goes

Conditioned air is distributed through the main deck, the upper deck and the crown space above the cabin, where the ducting runs alongside wiring. That crown area is also where Boeing moved crew rest and galley storage on the 747-8, which is why the routing differs from earlier 747s.

## How much bigger the 747-8 is

*URL: https://www.boeing-747.com/everything-about-the-boeing-747-8/new-size-of-the-boeing-747-.html*

The 747-8 is 250 ft 2 in long, 18.3 ft more than the 747-400, from a 13 ft 4 in plug ahead of the wing and a 5 ft plug behind it.

The 747-8 is **250 feet 2 inches** (76.25 m) long. That is 18 feet 4 inches more than any previous 747, and it made the 747-8 the longest airliner in the world when it entered service.

### Where the stretch went

Boeing did not lengthen the aircraft evenly. The extra length comes from two fuselage plugs inserted either side of the wing:

- **13 ft 4 in (4.06 m)** ahead of the wing
- **5 ft (1.52 m)** behind it

Splitting the stretch this way keeps the aircraft balanced around its centre of gravity, and puts most of the new floor area in the forward cabin where airlines place premium seating.

### What it did not change

The 747-8 was deliberately kept the same height as the 747-400, and its wingspan of 224 ft 7 in stays inside the 80 m box that airports use for gate planning. That was a commercial decision as much as an engineering one: it meant the aircraft could use existing 747 gates and infrastructure, and no airport had to reconfigure anything to accept it.

### What the extra length bought

On the Intercontinental, the stretch is worth **51 more seats** than a 747-400 and around 26 percent more cargo volume. On the Freighter, it adds four more main-deck pallet positions and about 16 percent more revenue cargo volume.

## Features

*URL: https://www.boeing-747.com/features/*

Stories and interactive tools for exploring the Boeing 747, from its systems and dimensions to passenger routes and aircraft spotting.

Pieces that do not fit the variant-by-variant reference, but are worth their own space.

### In this section

- **[The Everett factory](/features/everett-factory.html)** - the largest building in the world by volume, put up because no existing building could hold a 747
- **[747 versus A380](/features/747-vs-a380.html)** - the two largest airliners ever built, and why both are out of production
- **[What happened to the retired 747s](/features/where-the-747s-went.html)** - boneyards, freighter conversions, museums and stranger afterlives
- **[Flying the 747](/features/flying-the-747.html)** - the type rating, the handling, and what pilots say about it
- **[How 747 freight works](/features/how-747-freight-works.html)** - the nose door, motorised floors and 30 pallet positions
- **[The 747 on screen](/features/747-on-screen.html)** - the most filmed airliner ever built
- **[Designing 747s for high cycles](/features/designing-747s-for-high-cycles.html)** - the engineering behind Japan's short-range jumbos, and the fatigue failure behind JAL 123
- **[How 747 Combi fire rules changed](/features/747-combi-fire-protection.html)** - Class B cargo compartments, SAA Flight 295 and the rulemaking that followed
- **[Records and firsts](/features/records-and-firsts.html)** - including the 1,088 people carried on one aircraft
- **[747 versus 777](/features/747-vs-777.html)** - the twin that actually replaced it, built by the same company
- **[The Boeing 2707](/features/boeing-2707-sst.html)** - the supersonic airliner that gave the 747 its hump
- **[Maintaining a 747](/features/maintaining-a-747.html)** - the check cycle, and why the maintenance bill decides retirement
- **[The 747 nearly killed Boeing](/features/the-boeing-bust.html)** - the debt, the layoffs and the billboard
- **[Joe Sutter](/features/joe-sutter.html)** - the chief engineer, and the decision that made the 747 wide rather than tall
- **[The widebody war](/features/the-widebody-war.html)** - the DC-10 and TriStar destroyed each other; the 747 was in a different fight
- **[The farewell flights](/features/the-farewell-flights.html)** - kangaroos in the sky, retro liveries and sold-out seats
- **[How the 747 changed airports](/features/how-the-747-changed-airports.html)** - terminals, jetways, baggage and pavement

### Tools

- **[747 Explorer](/747-explorer.html)** brings the cutaway, size comparison, passenger route finder, photo quiz, airframe histories and personal spotting logbook together.
- **[Where can you still fly on a 747?](/features/where-to-fly-on-a-747.html)**: reported passenger routes, dated sources and known aircraft changes
- **[Explore inside a 747](/features/explore-inside-a-747.html)**: select the aircraft's systems in an illustrated cutaway
- **[Aircraft size comparison](/features/aircraft-size-comparison.html)**: 747 variants, the A380 and the 777 at the same scale
- **[Which 747? Photo quiz](/features/which-747-photo-quiz.html)**: nine photographs and the visual clues behind each answer
- **[747 spotting logbook](/features/747-spotting-logbook.html)**: browser-stored entries with CSV backup and restore
- **[Design a 747 livery](/features/design-a-747-livery.html)**: paint an original aircraft illustration and download your design
- **[Load a 747 freighter](/features/load-a-747-freighter.html)**: solve cargo-door, weight and balance teaching challenges
- **[Interactive 747 cockpit](/features/interactive-747-cockpit.html)**: compare analogue and glass displays as you adjust instrument readings
- **[747 airport spotting guides](/features/747-airport-spotting-guides.html)**: source-checked public viewing locations at five airports
- **[747 engine sound library](/features/747-engine-sound-library.html)**: four licensed recordings with playback and A/B comparison
- **[747 memories](/features/747-memories.html)**: attributed recollections and a contribution composer for editorial review
- **[747 units converter](/features/boeing-747-units-converter.html)** - knots, feet, nautical miles, lb and Jet A, converted openly
- **[Payload-range explorer](/features/payload-range-explorer.html)** - every variant's range, seats and weight side by side
- **[Registration / customer-code decoder](/features/registration-customer-code-decoder.html)** - what the letters after 747- mean

### Elsewhere

- [The 747 family](/boeing_747_family/) - every variant with production numbers
- [Specifications](/specifications.html) - all variants compared
- [747 systems](/boeing-747-internals/) - how the aircraft works


### The jumbo workshop

- **[Run a 747 airline](/features/run-a-747-airline.html)** - Play a six-month 747 airline strategy game. Choose an era, cabin, route, fares and frequency, and balance fictional demand against operating costs.
- **[The 747 that never was](/features/747-that-never-was.html)** - Explore Boeing's 747X and Stretch proposals, the 2001 change in direction and the later 747-8, with original schematic illustrations and dated sources.
- **[Build the jumbo](/features/build-the-jumbo.html)** - Assemble an illustrated Boeing 747 in seven stages, from the centre structure to engines, cabin systems and testing, with explanations at each step.
- **[One flight, behind the scenes](/features/747-turnaround.html)** - Follow a 747 turnaround from arrival to pushback. Add delays to catering, fuel, baggage and boarding, and explore how parallel tasks affect departure.
- **[Design your own 747 cabin](/features/design-a-747-cabin.html)** - Arrange economy seats, business seats, suites, lounges and bedrooms across two simplified 747 decks, then download your original cabin design as an SVG.
- **[Junior Jumbo: a 747 through a child's eyes](/features/junior-jumbo.html)** - Discover the 747 with printable colouring and cutaway sheets, a paper jumbo craft model, a paper-strength experiment and a three-question junior quiz.
- **[The people who made it fly](/features/747-people.html)** - Explore six perspectives on working with the Boeing 747 and prepare a first-person interview contribution for editorial review in a new oral-history archive.
- **[Jumbo myths lab](/features/jumbo-myths-lab.html)** - Test three jumbo-jet myths with interactive wing-flex, landing-gear steering and thrust diagrams, supported by Boeing, NASA and FAA explanations.

## Boeing 747-100 vs 747-200

*URL: https://www.boeing-747.com/features/747-100-vs-747-200.html*

The 747-200 was the original 747 with the edges taken off: more powerful engines, higher weights and longer range, and the freighter and combi derivatives the -100 could not offer.

The 747-200 is not a new aircraft, and Boeing never pretended otherwise. It is the [747-100](/boeing_747_family/747-100.php) with the original limitations removed: **more thrust, more weight, more range and a proper upper deck**. It is also the point where the 747 stopped being one aircraft and became a family.

### The object of the exercise

The [747-100](/boeing_747_family/747-100.php) was certified at 735,000 lb and could manage only about 5,000 nautical miles with a full load - marginal for the oceans it was built to cross. The 747-200's mission was to fix exactly that.

Three things did the work:

- **More powerful engines.** The -200 could carry the General Electric CF6 or Rolls-Royce RB211 as well as the [JT9D](/boeing-747-internals/engines.html), and later JT9Ds were far more reliable than the first units.
- **A stronger structure and gear**, raising takeoff weight from 735,000 lb to as much as 833,000 lb on the -200B.
- **More fuel**, which is what the weight increase was mostly spent on.

The result: about **6,560 nautical miles** on a -200B against roughly 4,620 - 5,300 on a -100 - the difference between flying the Atlantic with restrictions and flying it with comfort to spare.

### Spotting one

The upper deck is the giveaway. The earliest [747-100s](/boeing_747_family/747-100.php) had **three windows per side**; later -100s six; the -200 normally **ten**, a "full-length" upper deck Boeing made standard from 1971.

### The variants the -100 could not be

The -200 is where the family tree branches:

| | 747-200B | 747-200F | 747-200C | 747-200M |
|---|---|---|---|---|
| Passenger | Passenger | Cargo | Convertible | Combi |
| Full-length upper deck | Yes | Windowless | Yes | Yes |
| Built into same production run | Yes | Yes | Yes | Yes |

The freighter is the important one. The [747-100F](/boeing_747_family/747-100F.php) captures the design intent - a nose door and a full-length cargo floor built into the original layout - but it was the [-200F](/boeing_747_family/747-200f.html) that established the 747 as the world's cargo hauler, a role its [freighter and converted-freighter successors](/features/factory-vs-converted-747-freighters.html) still play decades later.

### The honest summary

The -100 proved the concept; the [-200](/boeing_747_family/747-200.php) made it a product. It sold 393 airframes against the -100's 168, and its lineage - the weights, the engine options, the cargo door - is what every later generation inherited.

## Boeing 747-200 vs 747-300

*URL: https://www.boeing-747.com/features/747-200-vs-747-300.html*

The 747-300 was a 747-200 with the upper deck stretched 23 ft 4 in, adding about ten percent capacity at the same weights and length.

The [747-300](/boeing_747_family/747-300.php) is the quietest of the 747 upgrades: no new wing, no new weights, no record-breaking range. It was built when airlines had a different problem - **how to carry more people without growing the airport**.

### What the stretch did

Fourteen years after the design's first flight, Boeing stretched the upper deck by **23 ft 4 in**, turning it from a ten-window lounge back into the high-density cabin the "wide-body" concept had promised. The main deck never changed: the entire increase in the aircraft's 10 percent capacity gain is upstairs.

| | 747-200 | 747-300 |
|---|---|---|
| Upper deck length | 10 windows (original) | + 23 ft 4 in; standard from here on |
| Passengers, 3-class | 366 | **400** |
| Length | 231 ft 10 in | 231 ft 10 in |
| Max takeoff weight | up to 833,000 lb | up to 833,000 lb |

The deck was long enough that Boeing moved the **upper-deck escape slide** from the front to the rear of the upper cabin - the only external sign of the change visible from outside the aircraft.

### Why so few were built

The -300's problem was timing. It entered service in 1983, and within two years Boeing had announced the [747-400](/boeing_747_family/747-400.php), which took every improvement of the -300 - including its stretch - and added the winglets, glass cockpit, tail fuel and new engines that made the earlier aircraft look old.

Only **81** -300s were built, but the stretch itself survived: it is the [upper deck every later 747 carried](/features/747-400-vs-747-8.html), and the reason a 747-400 looks so different from a 747-100 despite sharing the same fuselage length.

### The one thing Boeing never built

Boeing produced no factory [747-300 freighter](/boeing_747_family/747-300m.php). The passenger -300's main-deck windows made conversion more work for less structural value, and by 2000 the market was converting it anyway. Every 747-300F in the record is a **conversion**, not a production freighter - the gap between what Boeing delivered and what the market needed.

## Boeing 747-400 vs 747-8

*URL: https://www.boeing-747.com/features/747-400-vs-747-8.html*

Vs the 747-400, the 747-8 stretches the fuselage 18 ft 3 in, adds a swept new wing and GEnx-2B engines, and raises maximum takeoff weight to 987,000 lb. It was the heaviest aircraft ever built in the United States.

The [747-8](/boeing_747_family/747-8.php) is what happens when you take everything the [747-400](/boeing_747_family/747-400.php) learned and rebuild the aircraft around a new wing. The two are related - the -8 is squarely a -400 descendant - but Boeing's engineers changed enough that it flies, weighs and sells completely differently.

### The fuselage

The -400 spans three decades of 747s at **231 ft 10 in**. The -8 stretches that to **250 ft 2 in** - the first fuselage-length change since the 747SP cut one short in 1976. The extra 18 ft 3 in carries 51 more passengers in a three-class layout.

### The wing

The -400's solved wing grew **6 ft tip extensions and 6 ft winglets** to span 211 ft 5 in. The -8 threw that wing away. Its new wing spans **224 ft 5 in** and ends in **raked wingtips** instead of winglets - the same trick used on the 777-300ER - which is the single clearest way to identify the aircraft.

### The engines

| | 747-400 | 747-8 |
|---|---|---|
| Engines | PW4000, CF6-80C2 or **RB211-524G/H** | **GEnx-2B only** |
| Representative thrust | 56,500 - 63,300 lbf | 66,500 lbf |
| Removal? | Different engines on offer | Exclusivity deal with GE |

The [GEnx-2B](/boeing-747-internals/engines.html#the-genx-2b) is derived from the 787's engine, with a smaller fan to sit under a four-engined wing and bleed air restored for the 747's systems. Boeing offered no alternative - the reverse of the engine-choice philosophy that had once saved the [-200](/features/747-100-vs-747-200.html).

### Range and payload

The -8 flies a little further (**7,730 nmi** vs 7,285 nmi) and carries more. But the interesting split is inside the programme itself: the [-8F](/boeing_747_family/747-8f.php) spent its extra weight on **zero-fuel weight**, buying payload, while the [-400ERF](/boeing_747_family/747-400erf.php) had spent its increase on fuel, buying range. Same question, opposite answers.

### The production reality

| | 747-400 | 747-8 |
|---|---|---|
| Built | **694** | 155 |
| First delivered | 1989 | 2011-12 |
| Last delivered | 2009 | January 2023 |

The -400 was the best-selling 747 generation and the -8 the smallest since the 747SP. The -8 entered service at the worst possible moment: four-engined types were being retired, not ordered. That it was [the last 747 ever built](/blog/final-boeing-747-delivered-to-atlas-air.html) is the whole story in one line.

## Boeing 747-8 Intercontinental vs 747-8F

*URL: https://www.boeing-747.com/features/747-8i-vs-747-8f.html*

Both 747-8s share the GEnx-2B engines, the raked-tip wing and a 987,000 lb MTOW. The freighter trades the stretched upper deck for a swing-up nose door and 292,400 lb of payload; the Intercontinental keeps the passengers.

The two 747-8s look almost interchangeable in silhouette, and mechanically they
very nearly are. Boeing designed one airframe, one new wing and one engine type,
then let the customer choose what goes in the middle: seats or freight. Almost
every visible difference follows from that choice.

### What the two aircraft share

Start with the common ground, because it is most of the aircraft.

- A fuselage stretched **18 ft 3 in (5.6 m)** over the [747-400](/boeing_747_family/747-400.php), for a total length of **250 ft 2 in (76.25 m)**.
- An all-new wing with **raked wingtips** and a **224 ft 5 in (68.40 m)** span.
- Four **[General Electric GEnx-2B67](/boeing-747-internals/engines.html)** engines, 66,500 lbf each - the first 747 with a single engine option since the original.
- A maximum takeoff weight of **987,000 lb (447.7 t)**, the heaviest ever built in the United States.
- A two-crew flight deck derived from the 747-400, with fly-by-wire spoilers and a common type rating.

That common airframe is the whole story of the programme. The [747-8](/boeing_747_family/747-8.php)
was not a clean-sheet aircraft; it was the 747-400 modernised around a new wing
and a new engine.

### Where they part company

| | 747-8 Intercontinental | 747-8 Freighter |
|---|---|---|
| Upper deck | **Stretched** - longer, more windows | Standard-length, crew rest |
| Load in | Passenger doors and jet bridges | **Swing-up nose door** plus side door |
| Cabin | 467 seats in three classes | None - bare main deck |
| Payload | Passengers and belly freight | **292,400 lb (132,630 kg)** |
| Range | Published passenger summary: 7,730 nmi | Depends on payload, configuration and mission |
| Cruise | Mach 0.855 | Mach 0.845 |
| Entered service | 1 June 2012 (Lufthansa) | 12 October 2011 (Cargolux) |

The **stretched upper deck** is the quickest way to tell them apart from the
ground. The Intercontinental carries the [stretched upper deck](/boeing_747_family/747-8i.php)
that began with the [747-300](/boeing_747_family/747-300.php), lengthening the
"hump" and adding cabin space upstairs. The freighter reuses the shorter upper
deck - there are no premium passengers to seat, and the space is better spent on
crew rest and avionics.

The **nose door** is the freighter's signature feature. The entire nose section
swings up and out of the way so that outsized cargo can be loaded straight onto
the main deck, in line with the fuselage. It is an inheritance from the original
[747-100F](/boeing_747_family/747-100F.php) and the reason the 747 has always
been the freighter of choice for awkward, long loads. The [freight page](/features/how-747-freight-works.html)
walks through the loading process.

### Reading the range figure correctly

Passenger and freighter range figures usually describe different payloads,
so headline numbers are not directly comparable. Structural payload is a
weight limit; actual route capability also depends on fuel, weather, engine
installation and reserves. Boeing's section 3 charts show the payload-range
relationship for their stated planning conditions.

The [freighter comparison](/747-freighter-specifications.html) identifies the
weight and equipment assumptions. The [payload-range explorer](/features/payload-range-explorer.html)
keeps passenger range summaries separate from freighter structural payload.

### Why the freighter won

Both versions arrived into a market that no longer wanted four-engine
passenger jets. The Intercontinental's problem was not performance - it was the
economics of burning four engines when a twin could do the trip. The [747-8
compared to the 747-400](/features/747-400-vs-747-8.html) explains how the
aircraft improved and still lost the passenger market.

The freighter had no such rival. Nothing else combined the 747's payload, its
nose-door loading and its range, and the -8F went on to outsell the
Intercontinental by 107 airframes to 48. The final 747 ever made, delivered in
January 2023, was a freighter for Atlas Air - covered in [the farewell](/blog/final-boeing-747-delivered-to-atlas-air.html).

The structural payload quoted here uses Boeing's January 2026 representative planning configuration; it does not establish range at that load. See the [freighter specifications](/747-freighter-specifications.html) for the exact weight assumptions.

### Related

- [The 747-8 family](/boeing_747_family/747-8.php) - the aircraft in detail
- [747-8I](/boeing_747_family/747-8i.php) and [747-8F](/boeing_747_family/747-8f.php)
- [747-400 vs 747-8](/features/747-400-vs-747-8.html) - the generational leap
- [How 747 freight works](/features/how-747-freight-works.html)
- [Registration and customer-code decoder](/features/registration-customer-code-decoder.html) - decode suffixes such as 747-8B5

## What Boeing 747 accidents taught aviation

*URL: https://www.boeing-747.com/features/747-accident-safety-lessons.html*

Three lessons recur across 747 accidents: fuel-tank safety after TWA 800, crew resource management after Tenerife and Korean Air, and structural failure from improper repairs after JAL 123 and China Airlines 611.

The 747's accident record is not the reason it is remembered - but its accidents changed aviation rules more than its successes did. Looked at together, they resolve into a handful of recurring lessons. Each is a chapter in the same argument: **a 747 accident is rarely one person's mistake; it is a chain that a better rule could have broken.**

### One: fuel tanks can explode - TWA Flight 800

[TWA 800](/accidents_with_boeing_747s/twa-800.html) exploded in 1996 minutes after takeoff from New York, killing all 230 aboard. The National Transportation Safety Board's conclusion was that the centre wing fuel tank exploded: with fuel **heating in the tank** above its flammability temperature and a source of ignition, the tank's own vapours detonated.

The lesson became a rule. New widebody airliners were required to **inert their fuel tanks**, and operators were required to manage tank temperatures - the centre tank of a [747-400](/boeing_747_family/747-400.php) sits close to air-conditioning packs that can heat its contents dangerously. The [fuel system page](/boeing-747-internals/fuel-system.html) describes the tank layout in detail; that layout, not the aerodynamics, is what the inerting rules targeted.

### Two: the cockpit can kill a good crew - Tenerife, Korean Air

[Tenerife](/accidents_with_boeing_747s/tenerife.html) is still the worst accident in aviation history: 583 dead when a [KLM 747](/airlines/korean-air.html) began its takeoff while a Pan Am 747 was still on the same runway. It was not a mechanical failure. It was a captain who took off on a clear horizon-to-horizon fog - and a crew that could not or would not stop him.

The same pattern recurs. [Korean Air Flight 801](/accidents_with_boeing_747s/korean-air-801.html) flew into high ground on approach to Guam with a trained crew because the environment made them **wrong in a consistent way**. [Korean Air Cargo 8509](/accidents_with_boeing_747s/korean-air-8509.html) rolled into the ground at Stansted when a captain disregarded his instruments and ordered a climb the data did not support.

Out of these, and others, came **crew resource management (CRM)**: explicit training that the most junior crew member may challenge the senior, that questions must be answered, and that information must move. It is not a feel-good exercise; it is the procedural answer to the exact chain that killed people at Tenerife and Stansted.

### Three: repairs must be done the design way - JAL 123 and China Airlines 611

[JAL 123](/accidents_with_boeing_747s/jal-123.html) remains the deadliest single-aircraft accident in history: 520 dead when an improperly repaired aft pressure bulkhead failed, took the tail, and the 747SR - effectively a [747-100 with more passengers](/boeing_747_family/747-100sr.php) - was flown hydraulically dead until it hit a mountain.

[China Airlines 611](/accidents_with_boeing_747s/china-airlines-611.html) is the same lesson 21 years later. A 1980 tailstrike was repaired at the surface and left structurally unrepaired underneath; the 747 broke up in the climb when the [747-200's](/boeing_747_family/747-200.php) skin cracked at the un-peened repair. Both accidents were **delayed structural failures** - damage that looks fixed, then fails years later under fatigue.

The rule that grew from them is about how repairs are charged, documented and re-inspected: a repair is a permanent part of the aircraft's design, not a patch that disappears after it leaves the shop.

### The connective thread

Each lesson reads like three different failures - an explosion, a miscommunication, a crack. Structurally they are the same: **a designed-in margin was silently lost** - in the tank's flammability, in the authority of the captain, in the skin of the fuselage.

That is why this site documents the [systems](/boeing-747-internals/) and the [accidents](/accidents_with_boeing_747s/) together: the systems define the margin, and the accidents define when it disappears.

## Where to watch a Boeing 747

*URL: https://www.boeing-747.com/features/747-airport-spotting-guides.html*

Eight public airport viewpoints across five airports, with official access information and dated evidence of Boeing 747 cargo activity. Filter by airport, region or viewpoint type and print your selected guides.

import AirportSpottingGuides from '../../../components/AirportSpottingGuides.astro';

Watching a jumbo starts with a good public viewpoint. These guides bring together officially documented airport decks, galleries and a city park, with practical access notes and source dates. The five airports have published 747 cargo activity in the cited timetable; the aircraft visible during your visit will depend on the actual flight, stand and runway in use.

### Plan the visit around the viewpoint

- Check the linked visitor page before travelling. Weather, refurbishment and local access notices can override published hours.
- Look at the [live 747 map](/live-boeing-747-map.html) for recently reported aircraft, then check the airport's own flight information. A reported position or scheduled flight does not guarantee a view from a particular deck.
- Pick the indoor galleries for a sheltered visit, or outdoor decks when the weather and light suit your plans. Allow time to reach the right terminal and floor.
- Keep a record in the [spotting logbook](/features/747-spotting-logbook.html), including the date and registration when you can read it confidently.

For a visit centered on a specific airframe, explore the [preserved Boeing 747 directory](/preserved-boeing-747s.html).

## The 747 Combi and the fire rule that caught up with it

*URL: https://www.boeing-747.com/features/747-combi-fire-protection.html*

The 747 Combi's main-deck cargo hold was a Class B compartment - smoke detection and a fire extinguisher, but no built-in suppression. SAA Flight 295 in 1987 exposed the gap, and FAA rulemaking through 1993 made Combis far harder to justify.

A **Combi** splits the main deck between people and freight. On a
[747 Combi](/boeing_747_family/747-400m-combi.php) the passenger cabin sits
forward and the cargo hold aft, separated by a bulkhead with a door the crew can
pass through, and loaded through a large side cargo door on the aft fuselage.
Boeing built the idea across the family - the
[747-200M](/boeing_747_family/747-200m.php), [747-300M](/boeing_747_family/747-300m.php)
and [747-400M](/boeing_747_family/747-400m-combi.php) - and for years it was
attractive on thin long-haul routes that could not fill a whole passenger cabin.

The weak point was never the idea. It was the fire rule the idea was certified
under.

### Class B, and why it was a problem

Air transport cargo compartments were, and are, graded by how a fire in them is
fought. The 747 Combi's main-deck hold was a **Class B** compartment, which
required:

- a **smoke and fire detection** system to warn the crew,
- a fire-resistant lining, and
- **access in flight** for a crew member to reach any part of the compartment
  with a hand extinguisher.

What it did **not** require was a built-in fire suppression system. The plan for
a fire was for someone to go in and put it out by hand. Class B rules dated from
the 1940s, when cargo compartments were small and hand-loaded. By the 1980s a
747 Combi's hold could hold pallets up to 10 feet by 10 feet by 20 feet, and
over-water diversion times could run to hours. The rule had not grown up with the
aircraft.

By contrast, the lower-lobe baggage holds on an ordinary passenger 747 were
**Class C** - detection plus a built-in suppression system, with no crew access
required. The part of these aircraft that carried people was safer than the part
that carried their luggage.

### South African Airways Flight 295

On 28 November 1987 a 747-200B Combi, ZS-SAS, was en route from Taipei to
Mauritius when a fire took hold in its main-deck cargo compartment. The crew
could not reach or control it. All 159 people on board were lost when the
aircraft came down in the Indian Ocean.

The cockpit voice recorder captured the sequence: a fire alarm, then around
**eighty circuit breakers** tripping within about **fourteen seconds** as the
fire consumed systems. The inquiry concluded that the **detection and suppression
arrangements in the Class B cargo bays were inadequate** for a fire of that size.

### Rewriting the rule

The FAA responded with a series of airworthiness directives. The first, in 1989,
required near-term operational changes and set a deadline to either convert the
compartment to Class C, use Class C-compliant containers for all cargo, or adopt
a package of improved manual firefighting measures. Interim directives followed.
The definitive action came in **1993, with AD 93-07-15**, which removed the
manual-firefighting-only option entirely and required operators to choose one of
four paths:

1. convert the compartment to Class C;
2. carry all cargo in Class C-compliant containers;
3. fire-resistant covers or containers plus detection, a full-height barrier and
   operational changes; or
4. a **long-duration built-in suppression system** - an initial Halon
   concentration followed by a sustained concentration for at least 90 minutes -
   with detection, a barrier, ventilation shut-off, a viewport and crew
   procedures.

Most widebody Combi operators took the fourth option. Narrow-body Combis such as
the 727 and 737 more often took the third. Compliance was expensive, and it
helped accelerate the Combi's commercial decline: airlines began converting the
aircraft to all-passenger or all-freight layouts instead.

### The end of the passenger Combi

The FAA did not ban Combis outright, and neither did Europe, which later created
a **Class F** category in its own certification rules to cover compartments of
this kind. But the economics turned. The last operator of the 747-400M in
passenger service was **KLM**, whose final Combi revenue flight, from Shanghai to
Amsterdam, landed on **25 October 2020**. No airline flies a passenger 747 Combi
today; the survivors are freighters or have been converted.

### Related

- [The 747-400M Combi](/boeing_747_family/747-400m-combi.php) · [747-300M](/boeing_747_family/747-300m.php) · [747-200M](/boeing_747_family/747-200m.php)
- [KLM 747 seat maps](/seating_layouts_on_boeing_747/klm-747-seat-maps.html)
- [What 747 accidents taught aviation](/features/747-accident-safety-lessons.html)

## Listen to Boeing 747 engines

*URL: https://www.boeing-747.com/features/747-engine-sound-library.html*

Four credited real recordings covering RB211 engines from a cabin window and GEnx-2B engines during a departure and go-around.

import EngineSoundLibrary from '../../../components/EngineSoundLibrary.astro';

The same aircraft sounds very different through a cabin window and beside a runway. These real recordings keep their original speed, pitch and recording levels. Play them individually or switch between two selections.

### What you are hearing

The **[RB211](/boeing-747-internals/rolls-royce-rb211-524.html)** recordings were made aboard British Airways 747-436 G-CIVT on flight BA284 in March 2013. The recorder identifies both the aircraft and engine family. Cabin insulation, airflow and the window all contribute to the result.

The **[GEnx-2B](/boeing-747-internals/general-electric-genx-2b.html)** clips show a 747-8F departing Paine Field and another performing a go-around. GE lists the GEnx-2B as the engine application for the 747-8. The Paine Field source identifies LX-VCE; the go-around clip does not establish a registration.

### Listen with context

These are field recordings, not a controlled acoustic comparison. A microphone's position, wind, cabin insulation, background activity and distance change the result. The audio controls set playback volume on your device. They do not show sound pressure levels at the aircraft.

This edition covers **two engine families and three flight phases**. It does not yet include verified startup or ground-idle clips, or recordings identified as JT9D, CF6 or PW4000. A candidate NASA Shuttle Carrier Aircraft film was silent, and a slow-motion film was unsuitable for an original-speed sound comparison.

### Share a recording

Have a clear 747 startup, taxi or takeoff recording? [Contact the editor](/contact_me.php) with the aircraft registration, engine identification, date and location. Include your name, a source link and an explicit reuse licence. Recordings need review before inclusion.

Every clip above lists its creator, source, licence and any edits. The two Reedy audio adaptations retain **CC BY-SA 3.0**; the small Jia excerpt retains **CC BY 3.0**; John Veit's recording is **CC0 1.0**. These audio licences apply separately from the site's text.

### Continue exploring

- [JT9D, CF6 and RB211 compared](/features/jt9d-vs-cf6-vs-rb211.html)
- [Explore the cockpit](/features/interactive-747-cockpit.html)
- [747 airport spotting guides](/features/747-airport-spotting-guides.html)
- [747 Explorer](/747-explorer.html)

## Boeing 747 memories

*URL: https://www.boeing-747.com/features/747-memories.html*

A small archive of attributed published 747 recollections, plus a private browser composer that previews and exports visitors' own stories for optional editorial review.

import Boeing747MemoriesArchive from '../../../components/Boeing747MemoriesArchive.astro';
import MemoryComposer from '../../../components/MemoryComposer.astro';

Behind the aircraft's specifications are the people who built it, worked aboard it and watched it change their lives. This archive begins with three documented recollections and gives you a way to prepare your own story for the editor.

### How contributions reach the archive

Preview your draft and download a personal text copy whenever you want. If you choose to offer it for publication, confirm your rights and publication permission, then prepare the contribution file. Open the email draft to the editor, attach that file and any original photograph, review the message and send it yourself. The site does not send or publish a contribution automatically.

The editor checks accuracy, attribution, photo permission and consent before adding a story. Approximate dates are labelled as approximate, and unverified registrations are left unspecified. The publication consent covers this website and reasonable edits for clarity; ownership remains with the contributor or original rights holder.

The composer keeps draft text and photo previews only in the current page's memory. It does not create an account, store a draft in browser storage or upload a file. Download before leaving or refreshing. See [contact details](/contact_me.php), the [privacy policy](/privacy-policy.html) and the [terms of use](/terms-of-use.html).

Research the machine behind a memory through [individual aircraft histories](/boeing-747-aircraft-registry.html), or keep your own dated sightings in the [spotting logbook](/features/747-spotting-logbook.html).

## The 747 on screen

*URL: https://www.boeing-747.com/features/747-on-screen.html*

The 747 has appeared in well over 200 films, from the Airport series to Air Force One - the most represented aircraft in cinema.

The 747 has appeared in **well over 200 films**, which makes it the most represented aircraft in cinema history. That is not an accident of scheduling - it is a consequence of what the aeroplane meant.

### Why film-makers reached for it

A 747 reads instantly on screen. The hump makes it identifiable in silhouette, at any angle, to an audience that knows nothing about aircraft. No other airliner has that.

It also carried the right associations. From 1970 the 747 *was* long-haul travel, glamour and scale - so putting one in jeopardy raised the stakes automatically. Several hundred people, an ocean underneath, and an aircraft everybody recognises.

### The disaster years

**Airport 1975** used an American Airlines **747-123**, registration N9675, as the aircraft in crisis - the film in which a light aircraft strikes the cockpit in flight.

**Airport '77** used another American **747-123**, N9667, this time hijacked by art thieves and ending up on the sea floor in the Bermuda Triangle.

These were the peak of the 1970s disaster cycle, and they fixed the 747 in the public imagination as the aircraft that things happen to.

### The hijack era

**Executive Decision** (1996) hijacked a fictional Oceanic Airlines **[747-200](/boeing_747_family/747-200.php)**, and is remembered for a mid-air transfer into the belly of the aircraft.

**Air Force One** (1997) put a 747 at the centre of the plot as the presidential aircraft - the film that, more than anything else, fixed the [VC-25](/special_boeing_747s/boeing_vc25_air_force_one.php) in global consciousness. The real aircraft is a [747-200](/boeing_747_family/747-200.php) airframe.

**Die Hard 2** (1990) featured 747s including an Evergreen International **747-121A/SF**, N473EV - an aircraft that, unusually for a film 747, was a real working freighter.

### What it says about the aircraft

There is something fitting in a machine designed for a future that never arrived - [a freighter-convertible airliner built because supersonic transports were expected to take over](/boeing_747_family/747-100.php) - becoming the aeroplane that stood in for the entire idea of air travel for fifty years.

By the time the [last one was delivered in 2023](/blog/final-boeing-747-delivered-to-atlas-air.html), the 747 had been on screen for longer than most of the people watching had been alive.

### Related

- [Air Force One - the VC-25](/special_boeing_747s/boeing_vc25_air_force_one.php)
- [Background - the story of the 747](/background.php)
- [Videos](/videos/)

## The people who made it fly

*URL: https://www.boeing-747.com/features/747-people.html*

import PeopleArchive from '../../../components/experiences/PeopleArchive.astro';

The 747's history includes people whose work is rarely visible in a photograph: the engineer watching a systems panel, the mechanic investigating a fault and the crew preparing a cabin before passengers arrive.

### Building an original collection

This new interview collection is open for contributions. It does **not yet contain original published interviews**. The prompts are starting points for real contributors, not reconstructed quotations or fictional profiles. Completing the form produces an unpublished draft for you to review and download.

### What makes an account useful?

One specific experience is often more revealing than a whole career summary. Explain what you noticed, what you did and what you learned. Approximate dates are welcome; mark uncertainty rather than filling gaps from memory. Keep private names and sensitive operational details out of material intended for publication.

The editor will need real contributors, follow-up conversations and agreed final copy before the original interview archive can be populated. Existing attributed recollections remain available in [747 memories](/features/747-memories.html).

[Explore all 747 tools and experiences →](/747-explorer.html)

## Your Boeing 747 spotting logbook

*URL: https://www.boeing-747.com/features/747-spotting-logbook.html*

Record 747 sightings and flights by registration, date and airport. Edit your entries, undo the last deletion, and export a CSV backup from a logbook stored only in this browser.

import SpottingLogbook from '../../../components/SpottingLogbook.astro';

Keep a record of the 747s you have seen or flown on. Add the aircraft registration, the date, an airport or place, and any details you want to remember. Use one entry per sighting or flight, so you can record the same aircraft more than once.

### Keep your own backup

Your entries are stored in this browser on this device. The logbook does not send them to a server or sync them between devices. It works with optional analytics or external media blocked. Clearing website data, changing browsers or closing a private browsing window can remove them. Export a CSV backup regularly; you can import it on another device.

If storage is blocked or full, you can still use the logbook during this visit and export it before leaving. It will tell you when entries cannot be saved permanently. On a shared computer, use an exported file or your own browser profile for personal notes.

Imports add validated entries and skip exact duplicates. The required CSV headings are `registration`, `date`, `airport`, `activity` and `notes`; activity must be `seen` or `flown`. Notes can contain commas, quotes and line breaks when quoted as they are in an exported backup. Unsafe spreadsheet formula prefixes are escaped on export.

Use the [aircraft registry](/boeing-747-aircraft-registry.html) to research a registration, or practise identifying shapes with the [photo quiz](/features/which-747-photo-quiz.html).

## The 747 that never was

*URL: https://www.boeing-747.com/features/747-that-never-was.html*

import UnbuiltGallery from '../../../components/experiences/UnbuiltGallery.astro';

An aircraft family has a second history on the drawing board. Proposals test how much further a design can go, but technical possibility is only one part of the decision. Airlines also have to want the aircraft in sufficient numbers.

### Read the date with the number

The gallery uses Boeing's **July 2000** proposed capacities for the 747X and 747X Stretch. Proposal specifications can change, so these figures should not be substituted for later study numbers or production-aircraft specifications.

### A proposal is not a production aircraft

The 2001 product-strategy announcement records a change of emphasis toward speed. The 2005 747-8 launch marks a later production programme. The drawings here are original schematic interpretations, not recovered Boeing engineering drawings. The design-choice exercise is explicitly hypothetical.

[Explore all 747 tools and experiences →](/747-explorer.html)

## One flight, behind the scenes

*URL: https://www.boeing-747.com/features/747-turnaround.html*

import TurnaroundLab from '../../../components/experiences/TurnaroundLab.astro';

At the gate, the 747 becomes a meeting point for teams working above, below and around the cabin. Many tasks happen at the same time; others have to wait.

### Discover the critical path

Start with a small fuelling delay. Then add the same delay to catering. They may affect departure differently because one task has more spare time before its successor needs it. The clock identifies teams currently at work, while each task card explains what must happen first.

The baseline takes **98 fictional minutes** from arrival through pushback. Delays extend a task's duration. All times and dependencies are teaching assumptions, not a recommended turnaround plan. For example, this model makes boarding wait for catering and cleaning; actual arrangements vary.

### One aircraft, many perspectives

Read the [people behind the jumbo](/features/747-people.html), or take on the [freighter loading challenge](/features/load-a-747-freighter.html).

[Explore all 747 tools and experiences →](/747-explorer.html)

## 747 versus 777

*URL: https://www.boeing-747.com/features/747-vs-777.html*

The 777-300ER carries fewer people further, on two engines, and has sold 833 copies. It, not the A380, is what actually replaced the 747.

The A380 is usually cast as the 747's rival. It was not the aircraft that replaced it. **The 777 was**, and Boeing built both.

### The comparison that mattered

| | [747-400](/boeing_747_family/747-400.php) | 777-300ER |
|---|---|---|
| Entered service | 1989 | 2004 |
| Passengers, 3-class | 416 | 355 |
| Range | 7,285 nmi | **8,555 nmi** |
| Max takeoff weight | 875,000 lb | 700,000 - 775,000 lb |
| Engines | **four** | **two** × GE90, up to 115,300 lbf |
| Built | 694 (all -400s) | 833 (-300ER alone) |

The 777-300ER carries about 15 percent fewer passengers and flies **further**, on half the engines, at lower weight. Two GE90s produce roughly as much thrust as four of the 747-400's engines.

### Why two engines became acceptable

For most of aviation history, twins were barred from long overwater routes. **ETOPS** - the rules governing how far a twin may operate from a diversion airfield - was progressively relaxed as engine reliability improved, from 60 minutes to 120, 180, and eventually beyond.

Once a twin could fly the North Atlantic and the Pacific legally, the four-engined aircraft's core advantage evaporated. What remained was its cost: **twice as many engines to buy, maintain, overhaul and insure.**

### The economics that decided it

The killer was not fuel burn per seat. It was **fuel burn per seat when the aircraft is not full**.

A [747-400](/boeing_747_family/747-400.php) needs a lot of its 416 seats sold to make a route work. A 777-300ER needs fewer, so it can serve a thinner route profitably - or the same route more frequently, which passengers prefer.

That shift from **hub-and-spoke to point-to-point** is the whole story of long-haul aviation since the 1990s, and it favours smaller aircraft flown more often. The [A380 bet the other way](/features/747-vs-a380.html) and lost for the same reason.

### What the 747 kept

Two things, and only two.

**The nose door.** No twin has one, and until the 777F matured there was nothing else that could load outsize freight down the centreline. That is why the [747-8F](/boeing_747_family/747-8f.php) kept the production line open for a decade after passenger orders stopped.

**Four engines for heads of state.** The [VC-25B](/special_boeing_747s/vc-25b-bridge-qatar-747-8.html) is a 747-8 because four engines and that much floor area still have no substitute in that role.

### The irony

Boeing killed the 747 with the 777, and did it deliberately - the 777 was launched in 1990 while the 747-400 was still selling well. The company understood before its customers did that the future was large twins.

The [last 747 was delivered in January 2023](/blog/final-boeing-747-delivered-to-atlas-air.html). The 777 has passed **2,494 orders** across all variants, and its successor, the 777X, is still to come.

### Related

- [747 versus A380](/features/747-vs-a380.html)
- [The 747-400](/boeing_747_family/747-400.php)
- [Specifications](/specifications.html)

## 747 versus A380

*URL: https://www.boeing-747.com/features/747-vs-a380.html*

The A380 is bigger and carries more; the 747-8 is faster to turn round and fits existing airports. Both lost to twin-engined aircraft.

For about fifteen years these were the two largest airliners in service, and they were pitched directly against each other. Both are now out of production, and they lost to the same thing.

### Side by side

| | [Boeing 747-8I](/boeing_747_family/747-8i.php) | Airbus A380-800 |
|---|---|---|
| Length | **250 ft 2 in (76.25 m)** | 238 ft 7 in (72.72 m) |
| Wingspan | 224 ft 5 in (68.40 m) | **261 ft 8 in (79.75 m)** |
| Height | 63 ft 6 in (19.35 m) | **79 ft (24.09 m)** |
| Max takeoff weight | 987,000 lb (447.7 t) | **1,268,000 lb (575 t)** |
| Passengers, 3-class | 467 | **525** |
| Maximum passengers | 605 | **853** |
| Range | 7,730 nmi | **8,000 nmi** |
| Cruise | Mach 0.855 | Mach 0.85 |
| Engines | 4 × GEnx-2B67 | 4 × Trent 900 or GP7000 |
| Built | **155** | 254 |

The A380 wins on nearly every measure of size. The 747-8 is longer, marginally faster, and - importantly - smaller in the two dimensions airports care about.

### The airport argument

This is where the 747-8 had a real case, and it is easy to miss.

The A380 is a **full double-deck aircraft** at 79.75 m span and 24 m tall. Accepting it meant airports rebuilding stands, widening taxiways, and installing second-level jetways. That is capital expenditure by somebody other than the airline, and it limited where the aircraft could go.

The 747-8 was deliberately designed to the **same height as a [747-400](/boeing_747_family/747-400.php) and to fit existing 747 gates**. An airline could introduce it without a single airport spending anything.

Boeing pushed the operating comparison hard too: the Intercontinental was claimed to be about **10 percent lighter per seat**, with trip costs roughly 20 percent lower and seat-mile costs about 5 percent lower than the A380's.

### Where the A380 won

Sheer capacity, and passenger affection. On slot-constrained routes - Heathrow to Dubai, Sydney, Los Angeles - an airline that cannot get more slots can still carry more people by flying a bigger aeroplane, and 853 seats is a lot of people. Emirates built a large part of its network on exactly that logic and took more A380s than anyone.

Passengers liked it, which is not nothing. The cabin is quiet and the aircraft is smooth.

### Why both lost

Neither was beaten by the other. Both were beaten by **twin-engined aircraft**.

The 777-300ER, then the 787 and A350, could fly the same long-haul routes on **two engines instead of four**, with better fuel burn and - decisively - without needing 400 to 500 seats filled to make money. Airlines moved from hub-and-spoke to point-to-point: more frequencies, smaller aircraft, direct routes that bypass hubs entirely.

That trend was already running when both aircraft launched. Airbus put it plainly when it ended the A380: if you have a product nobody wants, or that you can only sell below cost, you stop making it.

**A380 production ended in 2021** after 254 aircraft. **[The 747 followed in January 2023](/blog/final-boeing-747-delivered-to-atlas-air.html)** after 1,574.

### The asymmetry at the end

One difference matters more than any specification: the 747 had a freighter and the A380 never did.

The [747-8F](/boeing_747_family/747-8f.php) has a **nose door** and a main deck designed for cargo, because the 747 was [designed as a freighter from the beginning](/boeing_747_family/747-100.php). It outsold the passenger version more than two to one and kept the line running for a decade after airline orders stopped.

The A380's double-deck layout makes a freighter version very hard - the upper deck floor is heavy, and loading two decks is awkward. A freighter was studied and abandoned.

So although both programmes ended, they ended differently. **107 of the 155 747-8s built were freighters**, most of them young, and they will be working into the 2040s.

### Related

- [Specifications - every 747 variant compared](/specifications.html)
- [The 747-8](/boeing_747_family/747-8.php)
- [Airlines that flew the 747](/airlines/)

## Boeing 747SP vs 747-100

*URL: https://www.boeing-747.com/features/747sp-vs-747-100.html*

The 747SP cut the -100's fuselage by nearly 48 ft to fly 5,830 nautical miles on a full load - further than any 747 of its generation, at the cost of 40 or more seats.

The [747SP](/boeing_747_family/747-100sp.php) answered a question everyone else had given up on: what if the 747 were built to fly **further** instead of to carry more? Boeing's answer cut the fuselage by nearly 48 ft, and the result - for four seats per row fewer than a 747-100 - became the longest-range 747 of its generation.

### Why shorten an airliner

The [747-100](/boeing_747_family/747-100.php) could carry 366 people about 4,620 - 5,300 nautical miles. The routes Pan Am wanted - Tehran to New York, and the long Pacific sectors - needed more range than a full 747-100 could deliver.

Removing a fuselage plug does two things at once: it **cuts weight** for the same wing and engines, and it **cuts drag**. The SP's 5,830-nautical-mile range came from exactly that - not from more fuel, but from less aircraft to carry.

| | 747-100 | 747SP |
|---|---|---|
| Fuselage length | 231 ft 10 in | **184 ft 9 in** |
| Wingspan | 195 ft 8 in | 195 ft 8 in (unchanged) |
| Passengers, 3-class | 366 | 276 |
| Max takeoff weight | 735,000 lb | 700,000 lb |
| Range | ~4,620 - 5,300 nmi | **5,830 nmi (10,800 km)** |
| Cruise | Mach 0.84 | **Mach 0.86** |

### The trade that nobody repeated

The SP's trick was never repeated, for a reason: it was a **niche answer to a niche question**. It carried over forty fewer people at a higher cost per seat than a -100, and once the later, heavier classics such as the [-200B](/boeing_747_family/747-200.php) could match its range while lifting a full main deck, the SP's reason to exist evaporated.

It was ordered for one job and done: **45 built**, against 168 -100s. Its survivors include government and VIP examples, which valued exactly what the design gives - a long-range 747 with the shortest fuselage Boeing could hang on the standard wing. In the identification guide it is the instant answer: [if the tail looks too big for the body, it is the SP](/features/identify-boeing-747-variants.html).

## Compare aircraft sizes

*URL: https://www.boeing-747.com/features/aircraft-size-comparison.html*

Compare overall length and wingspan for six 747 variants, the A380-800 and 777-300ER using original schematics on a common scale and manufacturer dimensions.

import AircraftSizeComparison from '../../../components/AircraftSizeComparison.astro';

A photograph can make a 747 look enormous or quite ordinary, depending on what stands beside it. Put two aircraft on one scale and the differences become much clearer.

### What the comparison shows

**Length and wingspan are different measures.** The [747-8](/boeing_747_family/747-8.php) is longer than the A380-800, while the A380 spreads much farther across the apron. Neither length nor span alone tells you passenger capacity or the volume of an aircraft.

The **[747SP](/boeing_747_family/747-100sp.php)** makes the opposite impression: its much shorter fuselage retains the classic 747's wingspan. Choose the SP beside the -100 to see the change without a camera angle hiding it.

The **-100, -200 and -300** share the same basic length and span. The upper deck and engines are useful identification clues, but those differences need a photograph or side view. Try the [variant identification guide](/features/identify-boeing-747-variants.html) for those clues.

### How it is drawn

Every outline uses metre coordinates. Changing units converts the labels; it does not stretch the drawing. Overlay mode aligns the noses, while side-by-side mode places the same drawings beside one another. Optional envelopes mark each aircraft's listed overall length and wingspan.

The figures are nominal manufacturer dimensions. The 747-400 wingspan uses Boeing's jig dimension; wing flex and ground attitude can change measured dimensions. The contours are simplified, so these pictures do not model wing area, turning paths or required ground clearances.

### Continue exploring

- [Explore inside a 747](/features/explore-inside-a-747.html)
- [Specifications for the whole 747 family](/specifications.html)
- [747 versus A380](/features/747-vs-a380.html)
- [747 versus 777](/features/747-vs-777.html)
- [747SP versus 747-100](/features/747sp-vs-747-100.html)

## The supersonic airliner that gave the 747 its hump

*URL: https://www.boeing-747.com/features/boeing-2707-sst.html*

The Boeing 2707 was to carry 250-300 people at Mach 3. It was cancelled in 1971 - but the 747's whole layout assumes it would have worked.

The most consequential aircraft in the 747's design history is one that was never built.

### What the 2707 was

Boeing's **2707** was an American supersonic transport: **250 to 300 passengers at around Mach 3** - faster and considerably larger than Concorde, which was designed for about 100 passengers at Mach 2.

The original design used a **variable-geometry "swing" wing**, sweeping back for supersonic flight and forward for takeoff and landing. It was elegant in principle and impossible in practice: the pivot mechanism kept gaining weight, the pivot section alone reaching **4,600 lb**, and the concept was eventually abandoned for a fixed delta.

Airlines believed in it. By October 1969, **122 aircraft had been reserved by 26 airlines**.

### Why it died

In **March 1971 the US Senate rejected further funding**, despite support from the Nixon administration, and the programme was cancelled with **115 unfilled orders from 25 airlines** and no prototype completed.

The reasons compounded:

- **Environmental opposition** over sonic booms and, later, ozone depletion - the boom problem alone meant overland supersonic flight was likely to be banned, which removed most of the useful route network.
- **Economics** the airlines had questioned from the start.
- **Weight and range**: the design could not achieve sufficient range.
- Rising development cost.

### What this has to do with the 747

Everything, structurally.

Boeing genuinely expected supersonic airliners to take over long-haul passenger flying within a decade or two. Promotional material of the era said as much: subsonic jumbo jets like the 747 would be **a passing intermediate fad** once SSTs arrived.

So the 747 was designed to have a **second career as a freighter** once passengers moved to supersonic aircraft. A freighter needed the nose to hinge upward for straight-in loading - which meant **the flight deck had to go above the main deck**.

That is the hump. The most recognisable shape in aviation exists because of an aeroplane that was cancelled.

### How the bet turned out

The supersonic transports never took over. Concorde flew, beautifully and uneconomically, and retired in 2003 after 20 aircraft. The 2707 never flew at all.

The freighter, though, was real. [747 freighters outlived the passenger versions by decades](/features/how-747-freight-works.html), the [nose door](/boeing_747_family/747-400f.php) turned out to be the aircraft's most valuable single feature, and **107 of the last 155 747s built were freighters**.

Boeing hedged against a future that did not happen, and the hedge became the business.

### Related

- [The 747-100 - where the layout came from](/boeing_747_family/747-100.php)
- [How 747 freight works](/features/how-747-freight-works.html)
- [Background - the story of the 747](/background.php)

## Boeing 747 units converter

*URL: https://www.boeing-747.com/features/boeing-747-units-converter.html*

An interactive converter for the units Boeing 747 specification tables use worldwide - airspeed, altitude, range, weight and fuel loads - with the conversion factors quoted openly.

Units mix on any 747 specification sheet: altitude in feet or metres, airspeed
in knots or km/h, range in nautical miles or kilometres, weights in pounds or
kilogrammes, and fuel in US gallons, litres or tonnes. This page converts
between them, counting every rule-of-thumb out loud. All conversion factors are
the internationally defined standards (nautical mile 1,852 m, international foot
0.3048 m, international pound 0.45359237 kg); Jet A fuel density is the 0.80 kg/L
planning rule of thumb, the same one used across the [747 fuel capacity
converter](/boeing-747-internals/fuel-system.html#fuel-capacity-converter).

### Which units which 747 table uses

| Quantity | Common on 747 spec sheets | Site default |
|---|---|---|
| Airspeed | knots (kt), Mach, km/h, MPH | knots and Mach |
| Altitude | feet (ft), metres (m) | feet |
| Range | nautical miles (nmi), km, statute miles | nautical miles |
| Weight | lb, kg, tonnes | lb and kg |
| Fuel | US gallons, litres, kg/lb of Jet A | US gallons |

The site's own [Boeing 747 specifications](/specifications.html) and
[payload-range explorer](/features/payload-range-explorer.html) quote feet,
knots, nautical miles and lb, with km and kg alongside. When a figure on this
site appears in one system only, use the converter above to flip it to the
other before comparing with a source that uses the second system.

### The factors, stated

- **1 nautical mile = 1.852 km** exactly (ICAO).
- **1 statute mile = 1.609344 km** exactly.
- **1 international foot = 0.3048 m** exactly.
- **1 international pound = 0.45359237 kg** exactly.
- **1 US gallon = 3.785411784 L** exactly.
- **Jet A ≈ 0.80 kg/L** at 15 °C; a commonly quoted heavier figure of 0.804 - 0.806 kg/L shifts full-tank weights by well under one percent.

Citation of conversion constants: [NIST SI guide](https://physics.nist.gov/cuu/Units/outside.html) and ICAO Annex 5.

### Why 747 numbers need both systems

Two examples from the site show the split. The site's cruise figure for the
[-400 and -8](/features/flying-the-747.html) is **Mach 0.855**; at cruise
altitude that works out to roughly 490 knots of true airspeed - the converter's
airspeed row turns that into km/h or MPH. And the same aircraft's range figures,
quoted as **7,730 nmi (14,310 km)** on the [payload-range explorer](/features/payload-range-explorer.html),
become about 8,895 statute miles for readers who think in miles. Both numbers
describe the same aircraft; neither is more correct.

import UnitsConverter from '../../../components/UnitsConverter.astro';

## Boeing 747 video index

*URL: https://www.boeing-747.com/features/boeing-747-video-index.html*

A searchable, consent-gated library of every Boeing 747 video this site publishes.

import VideoLibrary from '../../../components/VideoLibrary.astro';

Every video on this site, in one place. Search titles, keywords and credits, filter
by section and jump straight to the page that carries each one.

Every row here is a video the site already publishes. Each preview is a locally
hosted card, and each row links to the page with its click-to-load player.
Nothing here is requested from YouTube before you choose to play a video.

### The dataset

This index is also available as a machine-readable download from the same consent-free
build output the site's other datasets use:

- [JSON: Boeing 747 video index](/data/boeing-747-video-index.json)

## Build the jumbo

*URL: https://www.boeing-747.com/features/build-the-jumbo.html*

import AssemblyLab from '../../../components/experiences/AssemblyLab.astro';

A jumbo is assembled from major structures and thousands of smaller systems. Follow the centre structure, fuselage, tail, landing gear, engines and cabin as they become one aircraft.

### How closely does this follow the factory?

This is an educational sequence, not a shop-floor schedule. Boeing's first 747-8F assembly reports describe forward-fuselage assembly and wing-to-body joining as separate milestones. Real systems installation, sealing, testing and inspection overlap the structural work. Our diagram groups that work into seven understandable stages.

### Follow the real aircraft

For photographs and the story of the building itself, read [the Everett factory](/features/everett-factory.html). The [aircraft cutaway](/features/explore-inside-a-747.html) takes you inside the finished structure.

[Explore all 747 tools and experiences →](/747-explorer.html)

## Design your own 747 cabin

*URL: https://www.boeing-747.com/features/design-a-747-cabin.html*

import CabinDesigner from '../../../components/experiences/CabinDesigner.astro';

What would you put inside a jumbo if you could start with an empty cabin? Build a passenger airline layout, a flying home or a combination of the two.

### How to design

Choose a module and select a deck zone to replace it. Start with the airline layout, the flying-home preset or an empty canvas. The seat counter changes as you work. Download a scalable SVG when you want to keep or print the result.

### Space comes at a price

In this model, one main-deck zone holds 30 economy seats, 12 business seats or four private suites; upper-deck zones are smaller. Lounges and bedrooms add no takeoff seats. These are invented block capacities, not approved layouts. Stairs and service spaces are reserved outside the editable zones. A real design requires detailed exit, aisle, structural and evacuation analysis.

For actual airline layouts, visit the [seat-map collection](/seating_layouts_on_boeing_747/). For the exterior, try the [livery designer](/features/design-a-747-livery.html).

[Explore all 747 tools and experiences →](/747-explorer.html)

## Design your own Boeing 747 livery

*URL: https://www.boeing-747.com/features/design-a-747-livery.html*

Create a personal 747 colour scheme on an original side-view illustration, then download a PNG image or editable SVG directly from your browser.

import LiveryDesigner from '../../../components/LiveryDesigner.astro';

Imagine an airline of your own. Start with a short-upper-deck 747-100, a 747-400 or a stretched 747-8, then choose its colours and markings.

### Make it yours

The **classic cheatline** carries an accent stripe along the fuselage. The **swept accent** brings colour forward from the tail. The **minimal** pattern leaves more of the fuselage clear.

Change the tail, fuselage, accent and engine colours separately, or begin with one of the four palettes. The name and tail initials automatically use light or dark text to improve contrast. The landing gear switch changes the illustration's appearance without changing your colour scheme.

The aircraft outlines are original artwork with simplified proportions and visible features. They are not manufacturer paint templates or precise engineering drawings.

### Keep your design

**PNG** is suitable for sharing as a picture. **SVG** preserves the vector shapes and editable text for opening in a drawing application. Both downloads include the illustration's background and labels.

The designer does not upload your text, require an account or save it automatically. Download your work before refreshing or leaving the page.

### Explore more

- [Identify real 747 variants](/features/identify-boeing-747-variants.html)
- [Compare aircraft sizes](/features/aircraft-size-comparison.html)
- [See the photo collection](/photo_album/)
- [Return to the 747 Explorer](/747-explorer.html)

## Designing a 747 to wear out: the high-cycle problem

*URL: https://www.boeing-747.com/features/designing-747s-for-high-cycles.html*

The 747SR family was designed for roughly twice the flight cycles of a standard 747, with reinforced structure and reduced fuel. The fatigue failure behind JAL Flight 123 in 1985 showed what happens when a high-cycle airframe is repaired incorrectly.

An airframe ages on two different clocks. One counts **flight hours** - time spent
cruising, which is gentle. The other counts **cycles** - every take-off, landing
and pressurisation, each of which flexes the structure through a full range of
load. A long-haul [747](/boeing_747_family/747-400.php) spends most of its life
on the first clock. Japan's domestic 747s spent their lives on the second.

### A different design target

A standard [747-100](/boeing_747_family/747-100.php) was designed for roughly
**24,600 flights over 20 years**. The [747SR](/boeing_747_family/747-100sr.php),
built for Japanese trunk routes, was designed for about **52,000 flights** over
the same 20 years - more than double the cycles.

Boeing reached that figure by changing the aircraft in ways that would have
looked perverse on a long-haul jet:

- **Reinforced structures.** The wings, fuselage frames and landing gear were
  strengthened to absorb many more pressurisation cycles.
- **Higher design landing weight.** The domestic aircraft landed heavy, again and
  again, so the structure was sized for it.
- **Fuel capacity cut by about 20 percent.** Range was not the problem; carrying
  fuel it would never burn was just weight.
- **High-density single-class cabins**, with economy on the upper deck - the only
  747s routinely configured that way.

### One idea, three generations

Boeing built the concept three times over four decades. The
[747-100SR](/boeing_747_family/747-100sr.php) arrived in 1973; the
[747-300SR](/boeing_747_family/747-300sr.php) applied the same thinking to the
stretched-upper-deck airframe from 1987; and the
[747-400D](/boeing_747_family/747-400d.php) closed the line from 1991, deleting the
winglets that never repaid their weight on a one-hour sector. Only Japan Airlines
and All Nippon Airways bought them.

### The repair that broke a high-cycle airframe

On 12 August 1985, [Japan Air Lines Flight 123](/accidents_with_boeing_747s/jal-123.html),
a 747SR, lost its aft pressure bulkhead in flight. The escaping cabin air blew off
the vertical stabiliser and severed all four hydraulic systems, which on the 747
run through the tail. Of 524 people on board, 520 died - still the deadliest
single-aircraft accident in history.

The cause ran back seven years. In 1978 the same aircraft, JA8119, suffered a
tailstrike at Osaka; the aft pressure bulkhead was damaged and repaired. The
manual called for a **single continuous splice plate** joining the upper and lower
halves of the bulkhead. The repair instead used **two separate plates**, leaving a
single row of rivets to carry the entire load - about **70 percent** of the
intended fatigue strength. Cracks started at those rivet holes and grew over the
**12,319 pressurisation cycles** the aircraft then flew.

Two high-cycle factors made it worse. The aircraft was inspected on the basis of
the short-range cabin pressure setting, but JAL operated it at the higher
long-range differential pressure, which costs fatigue life. And on a domestic
747 the cycles simply accumulated faster: a crack that might take decades to
matter on a long-haul aircraft advanced in years.

### What changed

Investigators in Japan found the immediate cause; the NTSB issued recommendations
to the FAA that reshaped rules for every transport aircraft, not just the 747:
redesign of the tail so a bulkhead failure could not destroy flight controls,
changes so that no single event could disable all hydraulic systems, and a
re-examination of how fail-safe criteria were applied to **dome-shaped aft
pressure bulkheads** and to repair procedures on them.

The outcome is that a repair is no longer treated as a local fix. On a high-cycle
airframe it is part of the structure's life, and it is documented as such.

### Related

- [The 747-100SR](/boeing_747_family/747-100sr.php) · [747-300SR](/boeing_747_family/747-300sr.php) · [747-400D](/boeing_747_family/747-400d.php)
- [Japan Air Lines Flight 123](/accidents_with_boeing_747s/jal-123.html)
- [What 747 accidents taught aviation](/features/747-accident-safety-lessons.html)

## The building that had to be built first

*URL: https://www.boeing-747.com/features/everett-factory.html*

Built in 1967 for the 747, Everett covers 98.3 acres and encloses 472 million cubic feet - the largest building in the world by volume.

When Boeing agreed to build the 747, it had nowhere to build it. Every building the company owned was too small, and the aircraft was already sold - [Pan Am had ordered 25](/airlines/) in April 1966.

So the factory came first, sort of. Boeing cleared forest at **Paine Field, Everett**, and put up the assembly plant and the aeroplane more or less simultaneously, starting production before the building was finished.

### The numbers

| | |
|---|---|
| Volume | **472,370,319 cu ft (13,376,038 m³)** |
| Floor area | 98.3 acres (398,000 m²) |
| Built | 1967 |
| Hangar doors | Six, each 82 ft tall and 300 - 350 ft wide |
| Tunnels beneath the floor | 2.33 miles (3.75 km) |
| Workforce (2022) | around 30,000 across three shifts |

It is the **largest building in the world by volume** - a measure that matters more than floor area here, because what the 747 needed was height and clear span, not just acreage. The overhead cranes have to lift a complete [747 wing](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html), and the doors have to let a finished aircraft out.

The 2.33 miles of tunnels underneath carry people and services, so the floor above stays clear for aeroplanes.

### Why this was a serious risk

Boeing was committing, at once, to:

- an aircraft roughly twice the size of anything then flying;
- a factory that did not exist, on a site that was forest;
- a schedule of about four years; and
- an engine - the [JT9D](/boeing-747-internals/engines.html) - that was itself a first of its kind.

The engineering team under **Joe Sutter** got from launch to first flight in roughly 28 months. They became known inside the company as **"the Incredibles"**, and the name has stuck for sixty years.

The aircraft first flew from Paine Field on **9 February 1969**.

### What it built afterwards

The 747 line ran at Everett for 54 years. The [last one rolled out in December 2022](/747_timeline.php) and was [delivered to Atlas Air on 31 January 2023](/blog/final-boeing-747-delivered-to-atlas-air.html) - number 1,574.

The building did not go quiet. Everett has also assembled the 767, the 777 and 777X, and the 787 before that line moved to South Carolina in 2021. In 2026 it took on 737 MAX assembly as well.

So the building put up for one aeroplane has now outlived it, and is busier than ever.

### Related

- [Background - the story of the 747](/background.php)
- [Building a 747-8](/videos/building-a-boeing-747-8.html) - a full documentary
- [The 747-8 Intercontinental in final assembly](/videos/boeing-747-8-intercontinent-final-assembly.html)
- [The Museum of Flight, where the first 747 is preserved](/links.php)

## Explore inside a Boeing 747

*URL: https://www.boeing-747.com/features/explore-inside-a-747.html*

An original interactive 747-400 cutaway connects ten aircraft parts to explanations of their functions, from the raised cockpit to the tail APU.

import AircraftCutaway from '../../../components/AircraftCutaway.astro';

The hump, wings and tail hide a network of working spaces and systems. This cutaway connects those spaces to the equipment that keeps a 747 flying, with short explanations and links to the full guides.

### Three levels, different jobs

The **upper deck** starts with the flight deck and extends into a passenger cabin on a passenger 747-400. The **main deck** carries most passengers. Below it, the **lower holds** carry baggage and freight, separated by the wing centre section.

A [factory-built freighter](/features/factory-vs-converted-747-freighters.html) uses its main deck for cargo and has a shorter upper deck. Its raised cockpit leaves the nose free to open for loading. The passenger aircraft in this drawing has a fixed nose.

### Connected systems

An engine produces thrust, but also supplies power to other systems. Fuel reaches it through pumps and valves; hydraulic pumps and electrical generators driven by the engine support the rest of the aircraft. Compressor bleed air feeds the pneumatic system.

The [hydraulic](/boeing-747-internals/hydraulic-systems.html) and [electrical](/boeing-747-internals/electrical-system.html) guides explain how several sources and distribution paths provide redundancy. The lines in the cutaway illustrate these connections and do not reproduce actual installation routes.

### Look closer

- [All Boeing 747 systems](/boeing-747-internals/)
- [Fuel tanks and capacity by variant](/boeing-747-internals/fuel-system.html)
- [Cabin and seating layouts](/seating_layouts_on_boeing_747/)
- [Compare the size of 747 variants](/features/aircraft-size-comparison.html)
- [Systems changes on the 747-8](/boeing-747-internals/747-8-systems-differences.html)

## Factory freighters vs converted 747 freighters

*URL: https://www.boeing-747.com/features/factory-vs-converted-747-freighters.html*

Factory freighters are built cargo-ready with a nose door, windowless fuselage and short upper deck. Conversions rebuild passenger 747s with a side door and reinforced floor, at lower cost.

Every 747 freighter in the sky came from one of two places: the factory as a [cargo aircraft from the start](/boeing_747_family/747-400f.php), or a retirement hangar where a [passenger 747 was turned into one](/boeing_747_family/747-400bcf.php). The differences between the two tell you exactly what cargo the operator wants to carry.

### What a factory freighter gets that a conversion does not

**The nose door.** This is the decisive difference, and it is the reason the 747 looks like it does. The flight deck sits above the cargo floor so that the whole [nose can hinge upward](/boeing_747_family/747-100F.php) and cargo can be driven along the fuselage centreline.

| Feature | Factory freighter | Converted freighter |
|---|---|---|
| Nose door | Yes (classic models, -400F, -8F) | No - side cargo door only |
| Main-deck windows | None - built windowless | Stripped and plated over |
| Upper deck | Short hump (no cabin) | Passenger stretched upper deck retained |
| Main-deck floor | Built for cargo loads | Reinforced in conversion |
| Typical loads | Outsize: engines, rotor blades, machinery, satellite sections | Standard pallets and containers |

The rule from the [freight-loading guide](/features/how-747-freight-works.html): a side door lets you load anything that fits *through the door*; a nose door lets you load anything that fits *in the aeroplane*.

### Why Boeing's numbers split this way

Boeing built **126** [747-400F](/boeing_747_family/747-400f.php) airframes - the aircraft that came to dominate air freight through the 1990s and 2000s - and added the extended-range [-400ERF](/boeing_747_family/747-400erf.php) in 2002. Its whole weight increase went into **payload, not fuel**.

The converted fleet filled the gap the production line could not. The [747-400BCF](/boeing_747_family/747-400bcf.php) programme, launched in 2004, took passenger aircraft that were coming out of airline fleets and rebuilt them for Cathay Pacific Cargo from December 2005.

### Not every model had a factory freighter

- The [747-300](/features/747-200-vs-747-300.html) was **never built as a factory freighter**; every -300F is a conversion.
- The [747-100](/boeing_747_family/747-100F.php) proved the cargo concept but the production freighter story begins with the [-200F](/boeing_747_family/747-200f.html).
- The [747-8F](/boeing_747_family/747-8f.php) was factory-built at the very end of the line - fittingly, given that freight, not passengers, is what kept the 747 selling to the last.

### Which one on which route?

Standard pallet-and-container airlines - Atlas Air, Cargolux, UPS - fly both, using factory freighters where the nose door pays, and conversions where it does not. The economics decide: a conversion brings a proven airframe into service for a fraction of the price of new, giving older 747s [the cargo career](/features/where-the-747s-went.html) that now outlasted their passenger lives by decades.

## Flying the 747

*URL: https://www.boeing-747.com/features/flying-the-747.html*

The type rating, the sightline from the upper deck, the handling and the reputation - why 747 pilots talk about the aircraft the way they do.

The 747 has a reputation among pilots that is out of proportion to its performance figures. It is worth setting out where that comes from, because it is not nostalgia alone.

### The type rating

A pilot is licensed on a specific type, and converting costs an airline a great deal of money and several weeks of a pilot's time. That single fact drove more of the 747's history than any aerodynamic decision.

The [747-400](/boeing_747_family/747-400.php) removed the flight engineer, so its rating covers a **two-crew** aircraft. The [747-8](/boeing_747_family/747-8.php) was then deliberately designed to share a **common type rating with the -400**, despite having 787-derived displays - meaning a -400 pilot converts with a short differences course rather than a full type conversion.

That was a real part of the 747-8's sales case, and it explains why its flight deck looks more like a 1988 aircraft than a 2011 one. Boeing could have made it far more modern and chose not to.

Going the other way, the three-crew [747-300](/boeing_747_family/747-300.php) and earlier aircraft required a **flight engineer** - a separate qualification for a role that no longer exists at most airlines.

### Sitting 30 feet up

The flight deck is roughly three storeys above the ground and well ahead of the nosewheel. Neither is intuitive.

On landing, the wheels touch after the pilot's eye has already passed the aiming point, and the flare is judged from a sightline quite unlike a narrowbody's. On the ground, turning requires the pilot to taxi past the turn before beginning it, because the main gear is a long way behind - which is exactly why the aircraft has [body gear steering](/boeing-747-internals/landing-gear.html) to tighten the geometry.

Pilots converting to the 747 consistently describe the height, not the size, as the thing that takes adjustment.

### How it handles

The consistent report is that it flies **smaller than it is**. The controls are well harmonised, the aircraft is stable, and it responds predictably - helped by the fact that [roll control is split between inboard and outboard ailerons and spoilers](/boeing-747-internals/flight-controls.html) so that authority stays sensible across the speed range.

It is also a genuinely fast aircraft. Cruise is **Mach 0.855** on the -400 and -8, which is quicker than most of what shares the airway, and the [747-8's wing](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html) was designed to cruise as fast as or faster than any other passenger aircraft.

### What it demands

**Weight.** A 747 at maximum takeoff weight is close to a million pounds, and everything follows from that: long runways, high speeds, energy that has to be dissipated on landing, and the [most demanding rejected-takeoff certification test](/videos/boeing-747-8-being-put-through-some-tough-tests.html) of any airliner.

**Planning.** Fuel, weight and balance on a four-engined aircraft with [eight tanks and transfer between them](/boeing-747-internals/fuel-system.html) is more work than on a twin.

**Respect for the numbers.** [Tenerife](/accidents_with_boeing_747s/tenerife.html) and [the Tradewinds overrun](/videos/tradewinds-boeing-747-rejec.html) are both, in different ways, about the consequences of a decision made a second too late in a very heavy aeroplane.

### Why pilots talk about it that way

Partly because it was the aircraft that made long-haul flying ordinary, and flying one meant flying the routes that mattered. Partly because a type rating on it was, for decades, the top of a career.

And partly for the reason most often given: it is a big, fast, honest aeroplane that does what you ask, and there is not going to be another one.

### Related

- [The flight deck, from three crew to two](/boeing-747-internals/flight-deck.html)
- [Flight controls](/boeing-747-internals/flight-controls.html)
- [Specifications](/specifications.html)

## How 747 freight actually works

*URL: https://www.boeing-747.com/features/how-747-freight-works.html*

Nose door, motorised rollers, floor locks and 30 pallet positions - the mechanics of loading a 747 freighter, and why the nose door mattered so much.

Air freight is unglamorous and enormously important, and for fifty years the 747 was the aircraft that defined it. The reason is a design decision made in 1966 for a completely different purpose.

### The nose door

The 747's [flight deck sits above the main deck](/boeing_747_family/747-100.php) so that **the entire nose can hinge upward**, leaving the fuselage open along its centreline. Boeing did that because it expected supersonic airliners to take over passenger flying and wanted the 747 to convert to a freighter.

The supersonic airliners never came. The freighters did, and the nose door turned out to be the single most valuable feature the aircraft had.

**Why it matters:** a side door lets you load anything that fits *through the door*. A nose door lets you load anything that fits *in the aeroplane*, because the load travels in along the length of the fuselage rather than being turned through 90 degrees inside a confined space.

With the nose raised, pallets and containers up to about **40 ft (12 m) long** go straight in. Nothing else in commercial service could do that, which is why 747 freighters carried engines, rotor blades, machinery, satellite sections and helicopters for decades.

### What happens on the ground

The loading itself is more automated than most people expect.

**Motorised floor rollers.** Power-drive units built into the cargo floor - essentially motorised wheels - move the loads into position. A small crew works from a control panel with joysticks, and a 747 main deck can be loaded in a remarkably short time.

**Floor locks.** Each pallet or container is locked to the floor. This is not a detail: it is what stops the load moving in flight. When restraint fails the consequences are catastrophic, as [National Airlines 102](/videos/horrific-boeing-747-crash.html) showed when unsecured armoured vehicles rolled aft on rotation and destroyed the aircraft's control systems.

**High loaders.** Main-deck height is a long way up, so freight arrives on scissor-lift loaders sized for the job.

### The units

Air cargo moves in **ULDs** - unit load devices - which are standard pallets and containers so that loads can be built up away from the aircraft and slid straight in.

| | 747-400F | 747-8F |
|---|---|---|
| Main deck pallets (96 × 125 in) | 30 | 34 |
| Representative structural payload | 271,046 lb (GE high-MZFW example) | **292,400 lb (132.6 t)** |

The [747-8F](/boeing_747_family/747-8f.php)'s stretch added **four main-deck pallet positions**, plus extra capacity below - either two containers and two pallets, or three pallets.

### Why the upper deck is short

Look at a factory freighter and the hump is stubby. The [747-400F](/boeing_747_family/747-400f.php) and 747-8F revert to the short upper deck of the original [747-100](/boeing_747_family/747-100.php), rather than the stretched deck of the passenger aircraft.

A freighter has no use for an upper-deck cabin, and every kilogram of structure up there is payload given away. So it goes.

### Why freighters outlived the airliners

The economics are completely different, and this is the key to the whole 747 story.

A **passenger** 747 is retired when its fuel burn per seat stops competing with a newer twin - a commercial judgement that can arrive while the airframe is in fine condition.

A **freighter** is retired when the airframe runs out of cycles or the maintenance bill exceeds its remaining value. Freight flies fewer, longer sectors, and cargo does not complain about a dated cabin.

That is why [747-200Fs were still working in the 2010s](/boeing_747_family/747-200f.html), why [conversions](/boeing_747_family/747-400bcf.php) were worth doing, and why the [production line stayed open until 2023](/blog/final-boeing-747-delivered-to-atlas-air.html) on freighter orders alone - a decade after passenger orders had effectively stopped.

The structural payload quoted here uses Boeing's January 2026 representative planning configuration; it does not establish range at that load. See the [freighter specifications](/747-freighter-specifications.html) for the exact weight assumptions.

### Related

- [The 747-8F](/boeing_747_family/747-8f.php) and [747-400F](/boeing_747_family/747-400f.php)
- [The 747-8 Freighter interior](/everything-about-the-boeing-747-8/boeing-747-8-freighter-interior.html)
- [Airlines - who flies 747 freight today](/airlines/)

## How the 747 changed airports

*URL: https://www.boeing-747.com/features/how-the-747-changed-airports.html*

Terminals, jetways, baggage halls and runway pavement all had to change for an aircraft carrying two to three times what came before.

In January 1970 a single aircraft began delivering **more than 350 passengers at once** to terminals designed around the 150-seat [Boeing 707](/background.php). Almost everything on the ground had to change, and quickly.

### The surge problem

The difficulty was never the total number of passengers. It was that they arrived **all at the same time**.

A terminal sized for a steady trickle of narrow-body arrivals suddenly had to absorb two to three times as many people in a single pulse - through immigration, into a baggage hall, and out through customs. Queues that had been manageable became unmanageable overnight.

Airports responded with bigger arrivals halls, more immigration positions, wider circulation, and baggage systems built for far higher peak throughput. The **wide-body terminal** as a building type dates from this period.

### Two doors, two jetways

A 747 cannot be emptied through one door in an acceptable time. Gates were rebuilt with **two air bridges** serving separate doors, and on some stands three - including one reaching the [upper deck](/interiors/).

Even the geometry changed. Stands had to be spaced for a **195 ft 8 in wingspan** - and later **211 ft 5 in** once the [747-400](/boeing_747_family/747-400.php) added wingtip extensions and winglets, which was enough to make some existing gates unusable.

### The pavement

An aircraft weighing up to **987,000 lb** cannot simply be parked anywhere. Runways, taxiways and stands are rated for load, and exceeding that rating destroys them.

This is why the 747 has [eighteen wheels across five gear legs](/boeing-747-internals/landing-gear.html): spreading nearly 450 tonnes over enough contact patches to stay inside pavement ratings that airports could realistically build to. It is one of the least visible and most important decisions in the design.

Ground equipment had to grow too - **high loaders** able to reach main-deck height, larger tugs, and, for freighters, the handling gear that [nose loading](/features/how-747-freight-works.html) demands.

### Hangars

Maintenance bases needed doors and roofs to match a **63 ft 6 in tail**, and floor area for a wingspan over 200 ft. A [D check](/features/maintaining-a-747.html) needs the whole aircraft inside for weeks.

### The lesson the A380 learned the hard way

By the 2000s the world's major airports had spent thirty years adapting to the 747, and that infrastructure had become the baseline.

Boeing designed the [747-8](/boeing_747_family/747-8i.php) deliberately to fit inside it: same height as a 747-400, fitting existing 747 gates, **so no airport needed to change anything** to accept it.

The A380 went the other way and required airports to rebuild stands, widen taxiways and install upper-deck boarding - real capital spending, at a limited number of hubs, before a single passenger could be carried. That constrained where it could fly, and contributed to a production run of 254 against the 747's 1,574.

An aircraft is only as useful as the places it can go.

### Related

- [Landing gear - why eighteen wheels](/boeing-747-internals/landing-gear.html)
- [747 versus A380](/features/747-vs-a380.html)
- [How 747 freight works](/features/how-747-freight-works.html)

## How to Identify Boeing 747 Variants

*URL: https://www.boeing-747.com/features/identify-boeing-747-variants.html*

Identify a 747 by checking fuselage length first, then upper-deck length, wingtip shape, engine nacelles and cargo doors.

You can usually identify a Boeing 747 generation from one photograph. Start with the **fuselage length**, then look at the **upper deck**, **wingtips**, **engine nacelles** and **cargo doors**. Liveries and window counts are useful clues, but modifications mean they should never be the only test.

### Quick identification table

| Variant group | Upper deck | Wingtip | Strongest clue |
|---|---|---|---|
| 747-100 / -200 | Short | Plain tip | Original short "hump" |
| 747SP | Short | Plain tip | Dramatically shortened fuselage and tall tail |
| 747-300 | Stretched | Plain tip | Long upper deck but no winglets |
| 747-400 | Stretched | Vertical winglet, except -400D | Long upper deck plus winglets |
| 747-8 | Stretched | Raked tip | Longest fuselage, raked tips and scalloped nacelles |

### A five-step field check

1. **Is the fuselage unusually short?** If the aircraft looks almost stubby, with the tail close to the wing, it is a [747SP](/boeing_747_family/747-100sp.php).
2. **Is the upper deck short or stretched?** A short upper deck suggests a -100, -200, SP or factory freighter. A stretched upper deck suggests a -300, -400 or -8 passenger aircraft.
3. **Does it have vertical winglets?** A stretched-upper-deck aircraft with winglets is normally a 747-400. The Japanese domestic 747-400D is the important exception: it was built without them.
4. **Are the wingtips smoothly raked?** A long swept tip, rather than a vertical winglet, identifies the 747-8.
5. **Do the engine nacelles have scalloped trailing edges?** The chevrons on the GEnx nacelles confirm a 747-8.

### 747-100 and 747-200: the original profile

The [747-100](/boeing_747_family/747-100.php) and [747-200](/boeing_747_family/747-200.php) share the original short upper deck and plain wingtips. They are difficult to separate reliably in an exterior photograph because airline-specific engines, later conversions and added upper-deck windows blur the early differences.

Very early -100s left the factory with only a few upper-deck windows, but many were modified. Treat window count as a clue, not a verdict. A registration or construction number is the dependable way to distinguish a -100 from a -200 when the airframe has been altered.

### 747SP: unmistakably short

The [747SP](/boeing_747_family/747-100sp.php) is 184 ft 9 in (56.31 m) long, nearly 47 ft shorter than the standard classic fuselage. Its vertical tail was enlarged, which makes the fin look especially tall above the short body. It retains the short upper deck and has no winglets.

No other production 747 has this combination, making the SP the easiest version to identify at a distance.

### 747-300: long upper deck, clean wingtips

The [747-300](/boeing_747_family/747-300.php) introduced the stretched upper deck used by later passenger models. Its defining combination is a **long upper deck with no winglets**.

Be careful around the 747-400D. That high-capacity domestic model also lacks winglets, so a registration check may be required. The -300 retains the classic generation's flight deck and wing, but neither fact is usually visible in an ordinary ramp photograph.

### 747-400: look for vertical winglets

The [747-400](/boeing_747_family/747-400.php) normally combines the stretched upper deck with a prominent vertical winglet at each tip. Passenger, combi and factory-freighter versions share the revised wing, although factory freighters use the short upper deck.

The [747-400D](/boeing_747_family/747-400d.php) is the exception. Boeing omitted its wingtip extensions and winglets for short Japanese domestic sectors. When a long-upper-deck aircraft has no winglets, compare its registration against known -300 and -400D fleets.

### 747-8: raked tips and GEnx chevrons

The [747-8](/boeing_747_family/747-8.php) is the longest 747 at 250 ft 2 in (76.25 m). Instead of vertical winglets, it has long **raked wingtips**. Its General Electric GEnx-2B engines have serrated, or scalloped, nacelle trailing edges.

Those two features are decisive in most photographs. The passenger [747-8 Intercontinental](/boeing_747_family/747-8i.php) also has an upper deck longer than the -300/-400 deck. The [747-8 Freighter](/boeing_747_family/747-8f.php) retains the short upper deck and opening nose.

### Passenger, combi or freighter?

- A **factory freighter** has a short upper deck and a nose that hinges upward. It may also have a main-deck side cargo door.
- A **passenger 747** has rows of main-deck windows and no main-deck cargo door.
- A **combi** has passenger windows forward and a large main-deck side cargo door aft.
- A **converted freighter** may retain plugged passenger windows. Its nose generally does not open unless it began life as a factory freighter.

The upper-deck test alone cannot identify the generation of a freighter: the 747-200F, 747-400F and 747-8F all use short upper decks. Check the wingtips and engines next.

### When a photograph is not enough

Use the registration painted near the tail or rear fuselage. Airline fleet records, museum collection records and civil aircraft registers can resolve ambiguous airframes. Avoid identifying a model solely from its paint scheme: aircraft are sold, leased and repainted throughout their lives.

For exact measurements, compare the [747 specifications table](/specifications.html). To browse each production model, start with the [Boeing 747 family](/boeing_747_family/).

## Explore the 747 cockpit instruments

*URL: https://www.boeing-747.com/features/interactive-747-cockpit.html*

An educational instrument explorer compares classic-inspired dials and a glass-inspired display using the same adjustable readings, with explanations and primary references.

import Interactive747Cockpit from '../../../components/Interactive747Cockpit.astro';

A flight deck tells a story through numbers, pointers and symbols. This explorer lets you change those readings and see how two styles of instrument present the same information.

### From separate instruments to electronic displays

Classic 747s used a flight crew of **pilot, copilot and flight engineer**, as recorded in the FAA's type certificate. The 747-400 introduced a **digital two-crew flight deck**. Boeing later selected LCD displays and additional electronic features for the 747-8, including an electronic checklist and vertical situation display.

These drawings illustrate that broad change rather than reproducing a particular cockpit installation. The classic view contains four selected instruments; the glass view groups several readings onto one display. The same slider values carry over when you switch views.

### Choose a reading, then explore it

Use the instrument buttons to open the explanation and a suggested experiment. The three example displays provide convenient starting values. They are chosen for readability and are not recommended aircraft settings.

Sliders update immediately. There is no passage of simulated flight time, no map position and no relationship between the selected altitude, airspeed and lever position. This keeps the tool focused on learning the displays.

### Continue inside the aircraft

- [Flight deck history and photographs](/boeing-747-internals/flight-deck.html)
- [Classic flight-engineer station](/boeing-747-internals/flight-engineer-station.html)
- [Explore the aircraft cutaway](/features/explore-inside-a-747.html)
- [747-8 flight deck features](/everything-about-the-boeing-747-8/boeing-747-8-flight-deck.html)
- [Return to the 747 Explorer](/747-explorer.html)

## Joe Sutter, father of the 747

*URL: https://www.boeing-747.com/features/joe-sutter.html*

Joe Sutter (1921-2016) led the 747's design team, and made the decision that gave the aircraft a wide single deck rather than two narrow ones.

**Joe Sutter** (1921 - 2016) was chief engineer for the Boeing 747, and is universally called its father.

### The career

Born in **Seattle on 21 March 1921**, within sight of the industry he would spend his life in. He took a degree in aeronautical engineering from the **University of Washington in 1943**, and joined **Boeing in 1945**.

He never worked anywhere else. He retired in **1986** as executive vice president for commercial aeroplane engineering and product development, having been vice president and general manager of the 747 programme. Forty years, one company, one aircraft that defined it.

He died in 2016, aged 95.

### The Incredibles

Sutter led a team of about **4,500 engineers**, who took the 747 from launch to first flight in roughly **29 months** - a schedule that would be considered impossible today for an aircraft of that size and novelty.

They became known inside Boeing as **"the Incredibles"**, and the name stuck because it was not really an exaggeration. They were designing the first wide-body airliner, in a [factory being built around them](/features/everett-factory.html), for a company [betting its existence on the outcome](/features/the-boeing-bust.html).

### The decision that mattered most

The 747 could easily have been a **double-decker**. Two narrow decks was the obvious way to get the passenger numbers Pan Am wanted from a fuselage of manageable width, and it was seriously considered.

Sutter's team rejected it, and the reasoning was mostly about **evacuation and freight**.

Evacuating an upper deck in the required time is very hard - the escape slides are long and the geometry unforgiving. And a double-decker's cross-section is poorly suited to standard cargo containers, which mattered enormously given that [the 747 was designed to become a freighter](/features/boeing-2707-sst.html) once supersonic airliners took over passenger flying.

So they went **wide instead of tall**: a single main deck broad enough for two aisles and, below it, a hold that could take containers side by side. That created the **wide-body** category, which every long-haul airliner since has belonged to.

The upper deck exists only because [the flight deck had to be lifted clear of the nose cargo door](/boeing_747_family/747-100.php). It was a consequence, not a goal - which is why it started life as a lounge rather than a cabin.

### The other decision

Four engines rather than two was not really a choice at the time: engines of the necessary thrust did not exist, and twins were barred from long overwater routes anyway. It took another twenty years of engine development and [ETOPS relaxation](/features/747-vs-777.html) before Sutter's aircraft could be replaced by a twin - which, in the end, it was, by Boeing's own 777.

### What he got right

The proof is in how little the aircraft's basic architecture changed. The [747-8](/boeing_747_family/747-8.php) delivered in 2023 has the same fuselage cross-section, the same general layout and the same nose door as the [747-100](/boeing_747_family/747-100.php) that first flew in 1969.

**1,574 aircraft over 54 years** were built on decisions made by a team working to a 29-month schedule in the mid-1960s.

### Related

- [Background - the story of the 747](/background.php)
- [The Everett factory](/features/everett-factory.html)
- [The 747 nearly killed Boeing](/features/the-boeing-bust.html)

## Boeing 747 engines compared

*URL: https://www.boeing-747.com/features/jt9d-vs-cf6-vs-rb211.html*

The JT9D proved the high-bypass turbofan on the 747's first flight, the CF6 and RB211 gave airlines a choice from the 747-200 onwards, and the engine choice saved the programme's commercial case.

A turbofan works by throwing a **large mass of air backwards slowly**, most of it bypassing the hot core entirely. It is quieter and more efficient than the pure turbojet it replaced, and it is the reason the 747 can cross an ocean economically.

The question this page answers is: what do you get when you put three different turbofans under the same wing?

### The engines and the aircraft they powered

| Engine family | Typical thrust | 747 generations |
|---|---|---|
| [Pratt & Whitney JT9D](#the-jt9d) | ~46,000 - 50,000 lbf | 747-100, later -200 and -300 |
| [General Electric CF6](#the-cf6) | ~53,000 - 63,300 lbf (later variants) | 747-200, -300, -400 |
| [Rolls-Royce RB211](#the-rb211) | ~56,500 - 63,300 lbf (G/H models) | 747-200, -300, -400 |
| Pratt & Whitney PW4000 | ~63,000+ lbf | 747-400 |
| General Electric GEnx-2B | 66,500 lbf | 747-8 only |

### The JT9D

The [747-100](/boeing_747_family/747-100.php) had one engine choice, and the choice was the JT9D - the first high-bypass turbofan on a commercial airliner. It was rushed to meet the programme schedule, and its early reliability was bad enough that the first 747s were nearly grounded.

Later models - especially the JT9D-7R4 - fixed the worst of the problems, but the reputational damage was enough that airlines asked for alternatives. The JT9D's difficult start is the reason the [747-200](/boeing_747_family/747-200.php) offered three engines. It is also the reason Pratt & Whitney needed the [PW4000](/boeing-747-internals/engines.html) for the 747-400 generation.

### The CF6

General Electric's high-bypass turbofan arrived in the 1970s and proved reliable and flexible. On the 747 it spanned the entire family from the [-200](/boeing_747_family/747-200.php) to the [-400](/boeing_747_family/747-400.php), in variants including the CF6-80C2 - a workhorse that powered thousands of 777s and A330s as well.

### The RB211

Rolls-Royce's entry was the three-shaft high-bypass engine: a design that gave it an unusually smooth power delivery and a distinctive high-pitched whine. The RB211-524G and -524H, available from the [747-400](/boeing_747_family/747-400.php), delivered similar thrust to the CF6-80C2.

### Why three engines mattered commercially

Three things did the work:

- **Risk management.** No airline betting a billion dollars on a new aircraft wanted a single-source engine. Three options meant three competing proposals.
- **Customisation.** Pacific carriers flew different missions from Middle Eastern ones; different engines suited different routes.
- **Commercial leverage.** Three manufacturers competing kept pricing and delivery honest - and this was the programme's commercial problem-solver.

The [747-8](/boeing_747_family/747-8.php) reversed this. A GE exclusivity agreement meant the GEnx-2B was the only engine available, for at least ten years - the exact opposite of the strategy that had made the 747-200 a commercial success.

## Jumbo myths lab

*URL: https://www.boeing-747.com/features/jumbo-myths-lab.html*

import MythsLab from '../../../components/experiences/MythsLab.astro';

Some of the most ordinary parts of flight look extraordinary when the aircraft is this large. Move the controls to explore a flexible wing, steering gear and the difference between thrust and lift.

### Read the diagrams as explanations

The wing bends by an illustrative amount; it is not a prediction of 747 deflection. The steering model uses Boeing's 747-400 airport-planning endpoints and a simplified interpolation between them. The flight-path sketch shows an energy principle rather than engine-out capability.

### Questions lead to better models

A wing can be flexible and strong. Body-gear steering helps a large aircraft negotiate tighter ground turns. Engines supply thrust, while lift depends on airflow and configuration. Those statements explain the animations, but none replaces aircraft-specific performance data or operating procedures.

Explore the [interactive cockpit](/features/interactive-747-cockpit.html) and [aircraft cutaway](/features/explore-inside-a-747.html) for more systems context.

[Explore all 747 tools and experiences →](/747-explorer.html)

## Junior Jumbo: a 747 through a child's eyes

*URL: https://www.boeing-747.com/features/junior-jumbo.html*

import JuniorJumbo from '../../../components/experiences/JuniorJumbo.astro';

A giant aircraft is a good place to start asking questions. These activities combine making, observing and explaining, with printable sheets for time away from a screen.

### For families and classrooms

The colouring sheet is open-ended. The cutaway introduces the aircraft's main spaces. The paper model is a tabletop craft requiring scissors, glue and adult help. All three downloads use original simplified artwork and fit either A4 or Letter paper when printed from a browser.

### Try a fair test

The paper experiment changes one thing: the sheet's shape. Keep the paper, gap between the books and coins the same. Count what happens rather than aiming for a particular score. If the result surprises you, repeat it and compare. Folded paper explores structural stiffness; it does not demonstrate how a wing creates lift.

NASA's explanation of the four forces is a useful next step for older children. The [myths lab](/features/jumbo-myths-lab.html) adds moving diagrams of flexibility, steering and flight.

[Explore all 747 tools and experiences →](/747-explorer.html)

## Load a Boeing 747 freighter

*URL: https://www.boeing-747.com/features/load-a-747-freighter.html*

Three cargo-loading puzzles use a clearly simplified deck to teach door choice, space, weight allowance and the effect of moving cargo fore, aft and between sides.

import CargoLoadingGame from '../../../components/CargoLoadingGame.astro';

The 747 freighter's raised flight deck leaves room for a cargo door in the nose. Pallets can also enter through the main-deck side door. Choosing the opening is only the start: the load must fit, stay within its weight allowances and be distributed appropriately.

### What the real aircraft can carry

Boeing's 747-400F cargo-arrangement sheet shows **30 main-deck positions for 96 × 125-inch pallets**, approximately **2.44 × 3.18 metres**. Its door chart gives a main-deck side opening approximately **3.40 metres wide and 3.12 metres high**, while the nose opening has a shaped clearance profile. The actual cargo contour and the ability to manoeuvre a load matter as well as the nominal opening.

The nose door provides a straight route for certain long items. A side opening may require the cargo to turn after entering. Passenger-to-freighter conversions differ: the [747-400BCF](/boeing_747_family/747-400bcf.php) uses side-door loading rather than the factory freighter's nose door.

### About the puzzle model

The game compresses the deck into twelve marked positions. Its **12-tonne total allowance**, **4-tonne position allowance** and balance zones are invented teaching rules. The balance calculation considers the cargo pieces alone and shares a long crate's weight equally between its two positions. Real calculations include the empty aircraft, fuel, lower-deck load, restraint, position-specific floor limits and approved weight-and-balance data.

Try moving a heavy pallet from the front to the rear and watching the feedback change. The long-crate exercise treats the nose door as its permitted entrance; it is an illustrative turning problem rather than a measured cargo-clearance calculation.

Explore the [747-400F](/boeing_747_family/747-400f.php), [747 freighter specifications](/747-freighter-specifications.html) and [how the 747's systems work](/boeing-747-internals/).

## Maintaining a 747

*URL: https://www.boeing-747.com/features/maintaining-a-747.html*

The check cycle from walkaround to D check, why cycles matter more than hours, and why the maintenance bill is usually what retires a 747.

An airliner is not a machine that is repaired when it breaks. It is a machine that is taken apart on a schedule regardless of whether anything is wrong, and the 747's schedule is long and expensive.

### The check cycle

Maintenance is layered, from constant to almost never.

**Line checks** happen between flights - a walkaround, fluid levels, tyres and brakes, and anything the crew wrote up. Measured in minutes.

**A checks**, every few hundred flight hours, take the aircraft out of service overnight for more detailed inspection and servicing.

**C checks**, roughly every 18 months to two years, are substantial: the aircraft is in a hangar for one to a few weeks, large parts of the interior come out, and structural inspection begins in earnest.

**D checks** - heavy maintenance, every six to ten years - are close to disassembly. The interior is stripped, paint may be removed to inspect the skin beneath, structure is examined for corrosion and fatigue, systems are overhauled or replaced, and the aircraft is effectively rebuilt. A 747 D check takes **weeks to months** and costs millions.

Because the aircraft is already in pieces, a D check is also when [cabin refits happen](/interiors/) - grounding a 747 twice would be indefensible.

### Why cycles matter more than hours

A car wears by distance. A pressurised aircraft wears mainly by **cycles** - one pressurisation and depressurisation per flight, loading and unloading the fuselage each time. See [pressurisation](/boeing-747-internals/pressurisation.html) for why.

This is why Japanese domestic 747s were structurally different aircraft. The [747-100SR](/boeing_747_family/747-100sr.php), [-300SR](/boeing_747_family/747-300sr.php) and [747-400D](/boeing_747_family/747-400d.php) were reinforced specifically for far more cycles, and one ANA aircraft retired with more than **33,000** of them - where a long-haul 747 of the same age might have a few thousand.

### What the accidents taught

Two 747s were destroyed by repairs that passed every subsequent inspection:

- [Japan Air Lines 123](/accidents_with_boeing_747s/jal-123.html) - a 1978 bulkhead repair failed in 1985.
- [China Airlines 611](/accidents_with_boeing_747s/china-airlines-611.html) - a 1980 tailstrike repair failed in 2002.

Both drove the same conclusion: a repair is a **permanent modification** to the structure, its documentation has to outlive everyone involved, and repaired areas need inspection regimes of their own. Modern structural inspection programmes treat previously repaired structure as a distinct category for exactly this reason.

### Why maintenance retires aircraft

This is the part that decides an aircraft's fate.

A passenger 747 is usually retired for **economics** - its fuel burn per seat stops competing with a newer twin - while the airframe is still sound. That is why so many went to [freighter conversion](/boeing_747_family/747-400bcf.php) rather than scrap.

A freighter is retired when the **next heavy check costs more than the aircraft is worth**. At that point the engines, landing gear and avionics are worth more separately than the whole, and [the aircraft is parted out](/features/where-the-747s-went.html).

Nothing dramatic happens. Somebody does the arithmetic and the aeroplane does not fly again.

### Related

- [747 systems](/boeing-747-internals/)
- [Where the 747s went](/features/where-the-747s-went.html)
- [Upgrading a 747 cabin](/blog/upgrading-a-united-airlines-747-cabin.html)

## Boeing 747 payload and range explorer

*URL: https://www.boeing-747.com/features/payload-range-explorer.html*

An interactive comparison of 747 passenger range, seating and takeoff weight, with representative freighter structural payload shown separately. Sources and configuration assumptions are linked from the specification pages.

import PayloadRangeExplorer from '../../../components/PayloadRangeExplorer.astro';

Interactive tools can quietly invent data. This one does not: every figure below
is taken from the [Boeing 747 specifications](/specifications.html), which in
turn cites Boeing's airport-planning manuals. There is no modelled or
interpolated performance curve - only the numbers the manufacturer published.

### How to read the chart

The passenger bars show each variant's documented **maximum range** at a typical
passenger load. Two things stand out.

First, the [747SP](/boeing_747_family/747-100sp.php) exceeds the original -100's
range despite being the smallest design in the comparison. That
was its entire purpose: a shorter fuselage and a lighter airframe meant more fuel
per seat, which bought range when range was the hard part.

Second, the gains flatten after the [747-400](/boeing_747_family/747-400.php).
The 400ER added body fuel tanks for a modest increase, and the
[747-8](/boeing_747_family/747-8.php) added a new wing and new engines for the
largest range in the family. Each step cost far more than the one before it.

### Why the freighter figures look different

The freighter table shows **structural payload**, calculated as maximum zero-fuel
weight minus representative operating empty weight. It now uses the identified
configurations in Boeing's current airport-planning manuals rather than pairing
headline payload and range figures from different sources.

The [freighter specifications](/747-freighter-specifications.html) show weight
options, fuel and cargo volume. Actual route capability depends on the payload,
fuel, engine installation, weather and reserves; structural payload alone does
not determine range.

### Related

- [Full specifications](/specifications.html) - every dimension and weight
- [747-400 vs 747-8](/features/747-400-vs-747-8.html) - the generational jump
- [The 747 family](/boeing_747_family/) - every variant in detail

## Records and firsts

*URL: https://www.boeing-747.com/features/records-and-firsts.html*

Operation Solomon, the London-Sydney delivery flight and the round-the-world record - set out with the qualifications each one needs.

The 747 holds a set of records, and most of them come with a qualification that is usually left out. Both are given here.

### The most people ever carried on one aircraft

**1,088**, on a single El Al 747 during **Operation Solomon**, 24 - 25 May 1991.

The operation airlifted **14,325 Ethiopian Jews to Israel in 36 hours** using 35 aircraft, including Israeli Air Force C-130s and El Al 747s. One of those 747s carried more people than any aircraft before or since.

Guinness World Records puts the figure at **1,088, including two babies born during the flight**. Contemporary reports vary between 1,078 and 1,122 - nobody was counting precisely, which is rather the point.

Seats had been removed to fit more people in. The aircraft type was certified for a few hundred.

**No qualification needed on this one.** It stands as the record, and it is unlikely ever to be approached.

### London to Sydney nonstop

In August 1989 a Qantas [747-400](/boeing_747_family/747-400.php) flew **London to Sydney nonstop - 9,720 nautical miles (18,000 km) in 20 hours 9 minutes.**

**The qualification matters here.** This was a *delivery flight*. There were no fare-paying passengers and no freight aboard, and the aircraft used specially produced high-density jet fuel from Shell to squeeze more energy into the tanks.

It demonstrated what the airframe could do stripped of payload - not what it did in service. Quoting it as a commercial range figure, which happens often, is wrong: the [747-400's actual range](/specifications.html) is about 7,285 nmi.

### Fastest circumnavigation

In May 1976 a Pan Am [747SP](/boeing_747_family/747-100sp.php) named *Liberty Bell Express* flew round the world in **46 hours 26 minutes**, covering 23,137 miles.

The SP existed precisely because Pan Am and Iran Air wanted routes nothing else could fly, so the record was a demonstration of the variant's whole reason for being. It was also excellent publicity for an aircraft that ultimately sold only 45 examples.

### Firsts

- **First wide-body airliner.** The 747 created the category.
- **First aircraft to carry more than 400 passengers** in regular service.
- **Heaviest aircraft ever built in the United States** - the [747-8](/boeing_747_family/747-8.php) at **987,000 lb (447.7 t)** maximum takeoff weight.
- **Longest airliner in the world** on entry into service, at 250 ft 2 in, taking the title from the Airbus A340-600.
- **The largest building in the world by volume** was built for it - [Everett](/features/everett-factory.html).
- **First aircraft to carry a Space Shuttle**, as the [Shuttle Carrier Aircraft](/special_boeing_747s/shuttle_carrier_aircraft.php).
- **First aircraft to air-launch a rocket to orbit** from a converted airliner - [Cosmic Girl](/blog/virgin-galactic-will-use-a.html), in January 2021.

### One record it lost

The 747 was the **largest passenger aircraft in the world for 37 years**, from 1970 until the Airbus A380 entered service in 2007.

Even then it kept the length record. The [A380 is bigger in almost every other dimension](/features/747-vs-a380.html) but shorter - 72.72 m against the 747-8's 76.25 m.

### Related

- [Specifications](/specifications.html)
- [Background - the story of the 747](/background.php)
- [747 versus A380](/features/747-vs-a380.html)

## Boeing 747 registration and customer-code decoder

*URL: https://www.boeing-747.com/features/registration-customer-code-decoder.html*

Boeing buried the identity of each 747's first owner in its model suffix. This decoder reads the two-character customer code and turns it back into an airline.

import RegistrationDecoder from '../../../components/RegistrationDecoder.astro';

A Boeing 747's model number is not just a label. It records two facts about the
aircraft at the moment it was ordered: which variant it is, and which airline
bought it. The first is the dash number; the second is a short **customer code**
buried at the end of the designation. Neither changes when the aircraft is sold.

### How the code works

The system began in the 1950s with the 707. Pan Am, the launch
customer, bought the 707-120 - so its aircraft became 707-**121**, and Pan Am's
permanent customer code was **21**. New customers took the next numbers in turn,
and when 99 was reached Boeing started again from 01. Later, once those ran out,
two-character alphanumeric codes such as **B5** for Korean Air and **1R** for
Virgin Atlantic were introduced.

The code describes the **original buyer**, not the current operator. It is fixed
for the life of the airframe. A 747 delivered to British Airways in 1990 as a
**747-436** is still a 747-436 today, even if it finished its career with another
airline or was cut down into a freighter. For historians the suffix is often the
only reliable clue to an aircraft's first owner.

### Worked examples

| Designation | Read as | Original customer |
|---|---|---|
| **747-121** | 747-100, dash number 1 | Pan American World Airways (21) |
| **747-236B** | 747-200B, dash number 2 | BOAC / British Airways (36) |
| **747-2B5B** | 747-200B, dash number 2 | Korean Air (B5) |
| **747SP-44** | 747SP, dash number 44 | South African Airways (44) |
| **747-438** | 747-400, dash number 4 | Qantas (38) |
| **747-8B5** | 747-8 Intercontinental | Korean Air (B5) |

The pattern is consistent even across the shortened
[747SP](/boeing_747_family/747-100sp.php), which uses its own two-digit codes, and
the [747-8](/boeing_747_family/747-8.php), which uses the later alphanumeric ones.

### Where this helps

Customer codes are the fastest way to place a 747 in context. Seeing a
**747-287B** tells you at a glance that it began life with Aerolíneas Argentinas;
a **747-246B** was a Japan Airlines order. The same logic lets you group the
[airline histories](/airlines/) by who bought what, and it lines up with the
production records on the [747 production data page](/boeing-747-production-data.html).

Codes are also a reminder that the 747 was a genuinely global programme from the
start. The original order book mixed Pan Am, Lufthansa, Air France, Japan
Airlines, BOAC, Qantas, KLM and Air India - national carriers whose codes are
still readable on surviving airframes today.

### Related

- [Identify 747 variants](/features/identify-boeing-747-variants.html) - visual recognition
- [The 747 family](/boeing_747_family/) - every variant in detail
- [747 production data](/boeing-747-production-data.html) - the full build list

## Run a 747 airline

*URL: https://www.boeing-747.com/features/run-a-747-airline.html*

import AirlineGame from '../../../components/experiences/AirlineGame.astro';

A big aircraft needs a market to match. This strategy game puts you at the airline planning desk: sell enough seats to cover your costs without pricing your passengers away.

### Your objective

Start with **$1.5 million in game cash** and operate for six months. Finish above your starting balance to win; run out of money and the season ends. Each month announces its market event before you commit. You can change route, cabin, fare and frequency between rounds; your chosen era stays fixed after your first month.

### A useful trade-off

More flights offer more seats, but they do not create unlimited demand. A higher fare earns more per passenger while reducing the number willing to buy. A spacious premium cabin earns its higher fares only if there is a market for it. The forecast and ledger let you test these relationships.

All figures are invented and intentionally transparent. They are not inflation-adjusted historical results or financial advice. The game omits aircraft financing, taxes, fleet rotations and many real costs.

[Explore all 747 tools and experiences →](/747-explorer.html)

## The 747 nearly killed Boeing

*URL: https://www.boeing-747.com/features/the-boeing-bust.html*

The 747 programme took Boeing to the brink. Employment fell by more than 60 percent between 1967 and 1971, and Seattle went into a deep recession.

The 747 is remembered as one of the most successful aircraft ever built. It very nearly destroyed the company that built it.

### The size of the bet

Boeing committed to an aircraft larger than anything flying, on a roughly four-year schedule, and had to [build the world's largest building](/features/everett-factory.html) to assemble it in - clearing forest at Everett while the design was still being finished.

Doing that required borrowing around **$2 billion**, something like **$20 billion in today's money**. It was, in the phrase of the time, a bet-the-company decision, and the banks were exposed alongside Boeing.

The engineering team under [Joe Sutter](/background.php) delivered the aircraft in about 28 months and became known as **"the Incredibles"**. The financial side did not go as well.

### The Boeing Bust

The debt came due exactly as the market collapsed. Airliner demand fell sharply at the end of the 1960s, orders dried up, and the [JT9D engine problems](/boeing-747-internals/engines.html) meant early aircraft sat at Everett without engines, unable to be delivered or paid for.

Boeing began cutting in 1969, and kept cutting.

| | |
|---|---|
| Peak employment, 1967 | **100,800** |
| Employment, April 1971 | **38,690** |
| Workforce lost | **more than 60 percent** |

Seattle went into a deep local recession, since the region's economy was heavily dependent on one employer.

### The billboard

On **16 April 1971**, two Seattle estate agents, Bob McDonald and Jim Youngren, put up a billboard near Sea-Tac airport reading:

**Will the last person leaving SEATTLE - Turn out the lights**

It was meant as a joke, and it became the defining image of the period. McDonald later said out-of-town clients had arrived expecting a ghost town with weeds in the streets, and the pair had wanted to answer that with humour.

The 747 was flying by then. The company that built it was down to a third of its people.

### How it turned out

Boeing survived, orders recovered, and the 747 went on to sell **1,574 aircraft over 54 years** - the [last delivered in January 2023](/blog/final-boeing-747-delivered-to-atlas-air.html).

But it is worth being precise about what nearly went wrong. The 747 was not a bad aircraft that got lucky. It was a good aircraft that arrived with enormous debt attached at the exact moment its market paused - and the pause lasted longer than the balance sheet could comfortably take.

That is also why the same company [never launched the 747X](/boeing_747_family/boeing-747-500x-600x-and-700X.html) in 1996 when a new wing was costed at over $5 billion, and why the [747-8 reused as much as it could](/boeing_747_family/747-8.php). Boeing had learned exactly what a clean-sheet very large aircraft costs.

### Related

- [Background - the story of the 747](/background.php)
- [The Everett factory](/features/everett-factory.html)
- [The Boeing 2707](/features/boeing-2707-sst.html)

## How the airlines said goodbye

*URL: https://www.boeing-747.com/features/the-farewell-flights.html*

Qantas drew a kangaroo in the sky, BA sent two aircraft out together, United re-flew its 1970 route. Airlines do not usually do this.

Airlines retire aircraft constantly and almost nobody notices. The 747 was different: carriers staged ceremonies, repainted aircraft in heritage liveries, sold commemorative tickets and flew routes that made no commercial sense whatsoever.

It is worth collecting what they actually did.

### Qantas, 22 July 2020

The most theatrical. **VH-OEJ** left Sydney for Los Angeles as **QF7474** - a flight number chosen for the occasion - and the crew **drew a 275 km Qantas kangaroo in the sky** off the New South Wales coast, visible on flight tracking sites worldwide.

On the way out it overflew the **HARS museum at Illawarra and dipped its wings** to VH-OJA, the 747-400 preserved there - the aircraft that had flown [London to Sydney nonstop in 1989](/features/records-and-firsts.html).

Takeoff was to *I Still Call Australia Home*.

### British Airways, 8 October 2020

BA had **94 Boeing 747s** over its history, the second-largest fleet ever flown, and retired the type outright in July 2020 with four years still on the plan.

The final two Heathrow aircraft left together on 8 October: **G-CIVB** in the retro **Negus** livery and **G-CIVY** in standard colours. A **synchronised departure from parallel runways** was planned - and rained off, which is a very British ending.

### United, 7 November 2017

United flew its last 747 service from **San Francisco to Honolulu**, deliberately re-flying the route its first 747 had operated in **July 1970**. Cabin crew wore period uniforms and the catering was 1970s-themed.

**Tickets sold out in 90 minutes.**

### Delta, December 2017 - January 2018

Delta operated the **last scheduled 747 revenue flight by any US passenger airline** - Seoul to Detroit on **19 December 2017** - followed by employee-only farewell flights, and finally a ferry to the Marana boneyard in Arizona on **3 January 2018**.

### KLM and Virgin Atlantic, 2020

Both were pushed out early by COVID-19. KLM's last scheduled 747 service flew in **March 2020**, ahead of a retirement planned for 2021. Virgin Atlantic retired its seven aircraft **with immediate effect** in May 2020.

Not every farewell got a ceremony. Some fleets simply stopped and never flew again.

### Why any of this happened

Airlines are not sentimental organisations. They did this because **passengers and staff were**.

The 747 was the aircraft that made long-haul travel ordinary - the one people took to emigrate, to see family, on their first flight abroad. Cabin crew spent careers on it. A retirement flight that sells out in 90 minutes is not nostalgia manufactured by a marketing department; it is a genuine response that airlines noticed and matched.

Nothing since has been sent off like this, and given [how few remain](/blog/how-many-747s-are-still-flying.html), it is unlikely anything will be again.

### Related

- [Airlines - every major retirement date](/airlines/)
- [Where the 747s went](/features/where-the-747s-went.html)
- [Records and firsts](/features/records-and-firsts.html)

## The 747, the DC-10 and the TriStar

*URL: https://www.boeing-747.com/features/the-widebody-war.html*

The DC-10 sold 446 and the TriStar 250 against a break-even of 500 - two aircraft splitting one market while the 747 had its own.

The 747 is usually discussed on its own. It was not built in isolation: three widebodies arrived within three years of each other, and what happened to the other two explains a great deal about why the 747 lasted.

### The three

| | Entered service | Engines | Built |
|---|---|---|---|
| [Boeing 747](/boeing_747_family/747-100.php) | January 1970 | 4 | **1,574** |
| McDonnell Douglas DC-10 | August 1971 | 3 | 446 |
| Lockheed L-1011 TriStar | April 1972 | 3 | 250 |

The DC-10 first flew on **24 October 1970** and the TriStar on **16 November 1970** - three weeks apart. Douglas got to market first, in August 1971, and never lost that lead.

### Two aircraft, one market

The DC-10 and the TriStar were aimed at **the same customers for the same missions**: routes too big for a 707 and too small for a 747.

That market existed, and it was real. What it could not do was support two aircraft. Lockheed needed to sell around **500 TriStars to break even** and sold **250**. The programme contributed to Lockheed leaving commercial aviation altogether.

The DC-10 "won" with 446 - a number that would have been a disappointment on its own terms.

Both aircraft were competent. They destroyed each other by existing simultaneously.

### Why the 747 was not in that fight

Because it was in a different one. The 747 was **so much larger** that airlines did not cross-shop it against a trijet; they bought 747s for trunk routes and trijets for everything a step down.

Boeing had briefly considered joining the trijet market with a [shortened three-engined 747](/boeing_747_family/747-trijet.html), studied against precisely these two aircraft. Engineering showed it would need a complete wing redesign, and the company built the [747SP](/boeing_747_family/747-100sp.php) instead. In hindsight, staying out of the segment that consumed Lockheed was fortunate as well as sensible.

### What killed all three

The same thing, at different speeds.

Both trijets came to market **too early** - before twinjets had the power and efficiency for long-haul work. When **ETOPS** relaxed through the 1980s and let twins fly transoceanic routes, the entire rationale for a third engine evaporated. The DC-10 and TriStar were the first to go.

The 747 survived that wave because nothing could match its size, and then a second one because [nothing could match its nose door](/features/how-747-freight-works.html). It took the [777](/features/747-vs-777.html) to finish the job - and even then the freighters carried on for another decade.

Three widebodies, three fates: one obsolete by the 1990s, one by the 2000s, and one that kept finding new reasons to exist until 2023.

### Related

- [The 747 trijet that was never built](/boeing_747_family/747-trijet.html)
- [747 versus 777](/features/747-vs-777.html)
- [747 versus A380](/features/747-vs-a380.html)

## Where the 747s went

*URL: https://www.boeing-747.com/features/where-the-747s-went.html*

Scrapping, freighter conversion, preservation and a few genuinely strange afterlives - what became of 1,574 aircraft.

1,574 were built and most are gone. A four-engined widebody has very little value once no airline wants it, and the parts are usually worth more than the airframe. But not all of them ended the same way.

### Scrapped

The commonest outcome, and it is not sentimental. A retired 747 is stripped of everything with a serial number and a certificate - engines, avionics, landing gear, actuators - which go back into the spares pool keeping other aircraft flying. What is left is aluminium, and aluminium is recycled.

The [2020 retirements](/airlines/) accelerated this enormously: British Airways, Qantas, KLM and Virgin Atlantic all withdrew their fleets within months, and the market for used 747 parts was briefly flooded.

### Converted to freighters

The best outcome, and a common one. A passenger 747 is retired when its fuel burn per seat stops competing; a freighter is retired when the airframe runs out of cycles. Those are very different thresholds.

The [747-400BCF](/boeing_747_family/747-400bcf.php) programme rebuilt around 50 aircraft: interior stripped, a main-deck side cargo door cut in, floor reinforced, windows plugged. Third parties such as IAI Bedek did more under the **747-400BDSF** designation.

A converted aircraft cannot get a nose door - that is designed in from the start - so it loads through the side only and cannot take the outsize loads a factory [747-400F](/boeing_747_family/747-400f.php) can. It still flies freight for another fifteen or twenty years.

### Preserved

A small number are in museums and can be visited. The most significant is **[the first 747 ever built](/preserved-boeing-747s.html)** - RA001, *City of Everett* - at the Museum of Flight in Seattle, restored over nearly two years and reopened to visitors in 2014.

Others include the Qantas [747-400](/boeing_747_family/747-400.php) VH-OJA at HARS in Australia, which flew London to Sydney nonstop in 1989, and the two [Shuttle Carrier Aircraft](/special_boeing_747s/shuttle_carrier_aircraft.php) - NASA 905 at Space Center Houston and NASA 911 at Palmdale.

### Converted to something else entirely

A handful found afterlives nobody designed for.

**[Cosmic Girl](/blog/virgin-galactic-will-use-a.html)** is the standout. A former Virgin Atlantic 747-400 became Virgin Orbit's satellite launcher, carrying a rocket under its left wing and releasing it at 35,000 ft. It reached orbit six times. After Virgin Orbit's bankruptcy in 2023 it was bought by Stratolaunch, renamed *Spirit of Mojave*, and is being converted **again** as a hypersonic testbed carrier - a third career.

Others became **restaurants, hotels and homes**. A former Pan Am 747 has been a hostel at Stockholm Arlanda. One sits in a field in Oregon as a house. The [Evergreen Supertanker](/special_boeing_747s/evergreen_supertanker.php) went the other way and became a firefighting aircraft.

### Still flying

Not everything retired. [Four airlines](/active-boeing-747-fleet.html) still advertise scheduled passenger 747 fleets. Atlas Air Worldwide reported 60 747s in March 2026, including four Dreamlifters operated for Boeing.

The [747-8Fs](/boeing_747_family/747-8f.php) delivered in the 2010s and early 2020s are young aircraft with decades ahead of them, which means the 747 will still be working into the 2040s. And two 747-8s are becoming [the next Air Force One](/special_boeing_747s/vc-25b-bridge-qatar-747-8.html).

### Related

- [Airlines - when each one retired the type](/airlines/)
- [The 747-400BCF](/boeing_747_family/747-400bcf.php)
- [Preserved Boeing 747 museum directory](/preserved-boeing-747s.html)

## Where Can You Still Fly on a Boeing 747?

*URL: https://www.boeing-747.com/features/where-to-fly-on-a-747.html*

import Passenger747Routes from '../../../components/Passenger747Routes.astro';

Passenger 747 flights are still possible. This guide gathers **16 reported outbound routes from three airlines**, with the schedule sources checked on **3 October 2026**. It is a curated starting point, and does not cover every passenger 747 service worldwide.

Lufthansa's entries come from a route-level schedule report. Korean Air and Air China's entries include specific flights and date windows. The date picker distinguishes those two kinds of evidence, so a reported route is not mistaken for a confirmed aircraft on your chosen flight.

### Before you choose a flight

1. **Check the flight number, departure date and direction on the airline's website.** Look for Boeing 747, 747-400 or 747-8 in the aircraft details. A route may have several daily flights with different types.
2. **Compare the cabin layout.** The [seat map collection](/seating_layouts_on_boeing_747/) explains individual airline configurations. A general diagram cannot confirm available seats on a particular departure.
3. **Check again closer to departure.** Airlines can substitute aircraft after booking. The aircraft shown in a schedule report is an assignment, not a guarantee.

### Known changes in this snapshot

FlightMapper lists Korean Air **KE11 and KE17 from Seoul to Los Angeles as 747-8 flights through 24 October 2026**, then as 777-300ER flights from 25 October. Air China **CA1322 from Guangzhou to Beijing** has selected 747 weekdays through 23 October, followed by A330 assignments. Its generic 747 code does not distinguish the subtype.

Use the linked source reports to investigate newer schedules. The guide shows a reminder when its source checks are more than 30 days old. It does not automatically refresh or check seat availability.

After your trip, add the aircraft registration to your [personal 747 logbook](/features/747-spotting-logbook.html). You can also [identify the variant](/features/identify-boeing-747-variants.html), check the [airframe registry](/boeing-747-aircraft-registry.html) or return to the [747 Explorer](/747-explorer.html).

## Which 747 is this? Photo quiz

*URL: https://www.boeing-747.com/features/which-747-photo-quiz.html*

Nine photographs test your knowledge of Boeing 747 shapes, wingtip designs and special missions. Each answer explains the visual clues and links to a detailed article.

import Boeing747PhotoQuiz from '../../../components/Boeing747PhotoQuiz.astro';

Can you tell a shortened 747SP from a standard jumbo, or a factory freighter from a Dreamlifter? Study each photograph and choose the variant or special role. Text clues describe the same features for visitors using a screen reader.

### Learn the shapes

A long upper deck, a short fuselage or a distinctive wingtip can narrow the possibilities. Some variants share a silhouette: the [747-100 and 747-200](/features/747-100-vs-747-200.html) usually need a registration record for a reliable identification. A missing winglet also has exceptions, including the [747-400D](/boeing_747_family/747-400d.php).

Explore the [747 family](/boeing_747_family/), [special 747s](/special_boeing_747s/), or the [history quiz](/boeing-747-history-quiz.html). Save your real sightings in your [personal spotting logbook](/features/747-spotting-logbook.html).

Your quiz score stays on this page and resets when you reload. The quiz uses local photographs and works with optional analytics or external media blocked. Without JavaScript, every photograph and explanation remains available as a self-guided quiz.

## Fun Facts from Boeing

*URL: https://www.boeing-747.com/fun_facts_from_boeing.php*

A 747-400 has six million parts and 171 miles of wiring; 1,574 were built between 1968 and 2023, and one once carried 1,088 people on a single flight.

**Parts**

-   A 747-400 has six million parts, half of which are fasteners.
-   A 747-400 has 171 miles (274 km) of wiring and 5 miles (8 km) of tubing.
-   A 747-400 consists of 147,000 pounds (66,150 kg) of high-strength aluminum.
-   The 747-400 has 16 main landing gear tires and two nose landing gear tires.
-   The 747-400 tail height is 63 feet 8 inches (19.4 m), equivalent to a six-story building.


**Wings**

-   The 747-400 wing weighs 95,000 pounds (43,090 kg), more than 30 times the weight of the first Boeing airplane, the 1916 B&W.
-   The 747-400 wing measures 5,600 square feet (524.9 m²), an area large enough to hold 45 medium-sized automobiles.
-   Four World War I vintage JN4-D "Jenny" airplanes could be lined up on each of the Boeing 747 wings.
-   How much weight does an additional 6-foot (1.8-m) wingtip extension and winglet add to the 747-400 wing? None! A weight savings of approximately 5,000 pounds (2,270 kg) was achieved in the wing by using new aluminum alloys, which offset the weight increase of the wing tip extension and winglet


**Engineering and Testing**

-   Seventy-five thousand engineering drawings were used to produce the first 747.
-   The first 747 completed more than 15,000 hours of wind-tunnel testing.
-   The original 747 flight test program, which led to the airplane's certification for commercial service in December 1969, used five airplanes, lasted 10 months and required more than 1,500 hours of flying.


**Flight**

-   The 747 fleet has logged more than 42 billion nautical miles (77.8 billion kilometers), equivalent to 101,500 trips from the Earth to the moon and back.
-   The 747 fleet has flown 3.5 billion people - the equivalent of more than half of the world's population.
-   The 747-400ER range is approximately 7,713 nautical miles (14,297 km).
-   A 747-400 typically takes off at 180 mph (290 km/h), cruises at 565 mph (910 km/h) and lands at 160 mph (260 km/h).
-   For a typical international flight, one 747 operator uses about 5.5 tons (5,000 kg) of food supplies and more than 50,000 in-flight service items.


**Engines**

-   Engine thrust has grown from 43,500 pounds (19,730 kg) per engine on the early 747s to as much as 63,300 pounds (28,710 kg) on the current model.
-   The diameter of the 747 engine cowling is 8 feet 6 inches (2.6 m).


**Fuel**

-   The 747-400ER can carry more than 63,500 gallons of fuel (240,370 L), making it possible to fly extremely long routes, such as Los Angeles to Melbourne, Australia.
-   A 747-400 that flies 3,500 statute miles (5,630 km) and carries 126,000 pounds (56,700 kg) of fuel will consume an average of five gallons (19 L) per mile.
-   The 747-400 carries 3,300 gallons (12,490 L) of fuel in the horizontal (tail) stabilizer, allowing it to fly an additional 350 nautical miles.


**Interior**

-   The award-winning Boeing Signature Interior is available on both the 747-400 and 747-400ER.
-   At 31,285 cubic feet (876 cubic meters), the 747-400 has the largest passenger interior volume of any commercial airliner, which is equivalent to more than three houses each measuring 1,500 square feet (135 square meters).
-   The 747-400 has a redesigned "flexible" cabin interior that allows airlines to rearrange seats and class configuration overnight (in eight hours). They also permit 48-hour conversion times for changes in galley and lavatory locations.
-   Airline cargo handlers use the 747-400's lower-lobe cargo handling system to load or unload more than 65,000 pounds (30,000 kg) of cargo - the equivalent of 625 pieces of luggage combined with 20 tons of revenue freight - in less than 15 minutes.
-   The Wright Brothers' first flight at Kitty Hawk, N.C., could have been performed within the 150-foot (45-m) economy section of a 747-400.
-   There are 365 lights, gauges and switches in the new-technology 747-400 flight deck, reduced from 971 on earlier 747 models.


**Origins**

-   Pan American World Airways launched the programme in 1966 with an order for 25 aircraft at about $20 million each.
-   The first 747 was rolled out of the Everett factory on 30 September 1968 and made its first flight on 9 February 1969.
-   It entered airline service with Pan Am on 22 January 1970, on the New York to London route.
-   Chief engineer Joe Sutter is known as the father of the 747. He died in 2016 at the age of 95.
-   The team that took the aircraft from go-ahead to rollout in 29 months became known inside Boeing as "The Incredibles".
-   The famous hump is a side effect of freight. Boeing expected supersonic airliners to take over passenger flying, so the flight deck was raised out of the way to let the entire nose swing upwards for cargo loading.


**The factory**

-   The Everett factory was built in 1967 for one purpose: to assemble the 747.
-   At roughly 472 million cubic feet (13.3 million m³) it is still the largest building in the world by volume.
-   It covers about 98 acres (40 hectares) - enough to park every 747 ever built inside, several times over.


**Records**

-   The most people ever carried on an airliner flew aboard an El Al 747 during Operation Solomon in May 1991, evacuating Ethiopian Jews to Israel. The figure is officially recorded as 1,088, including two babies born during the flight; some accounts put it higher still.
-   The longest non-stop flight by a 747 was a delivery flight. On 16 - 17 August 1989 the Qantas 747-400 *City of Canberra* (VH-OJA) flew London to Sydney non-stop in 20 hours and 9 minutes, covering about 17,000 km (9,200 nmi).
-   That flight carried a specially blended high-density fuel, 183.5 tonnes of it, and just 21 passengers.


**Other jobs the 747 has done**

-   Carried the President of the United States, as the [VC-25A Air Force One](/special_boeing_747s/boeing_vc25_air_force_one.php).
-   Carried Space Shuttle orbiters across America on its back, as the [Shuttle Carrier Aircraft](/special_boeing_747s/shuttle_carrier_aircraft.php).
-   Carried other aeroplanes inside itself - the [Dreamlifter](/special_boeing_747s/747_large_cargo_freighter_l.php) was rebuilt with a swollen fuselage to ferry Boeing 787 wings and fuselage barrels.
-   Fought wildfires, dropping up to 24,000 US gallons of retardant as the [Evergreen Supertanker](/special_boeing_747s/evergreen_supertanker.php).
-   Carried a megawatt-class laser in its nose, as the [YAL-1 Airborne Laser](/special_boeing_747s/yal-1_airborne_laser.php).
-   Carried a 2.5 metre infrared telescope and flew with a hole open in its fuselage, as [SOFIA](/special_boeing_747s/sofia.html).


**The end of the line**

-   Boeing built 1,574 Boeing 747s across a production run of 54 years.
-   The last one, a 747-8 Freighter, was handed to Atlas Air on 31 January 2023.
-   Production ending is not the same as the aircraft disappearing. Freighters still carry a large share of the world's outsize air cargo, and a handful of airlines still fly passenger 747s.
-   Because the line is closed, every future presidential 747 has to come from an airframe that already exists.

## Inside the 747

*URL: https://www.boeing-747.com/interiors/*

From 1970s upper-deck lounges to the 747-8's 787-derived cabin, and the seat maps airlines actually flew.

The 747 has had two quite different cabins in its life, separated by about forty years and a complete change in what airlines wanted from the space.

### The lounge era

The earliest [747-100s](/boeing_747_family/747-100.php) carried a **lounge** behind the flight deck rather than a cabin, reached by a spiral staircase. Airlines competed over what to put in it - American fitted a piano bar, others fitted swivel chairs and standing bars.

The [747-200](/boeing_747_family/747-200.php) options list gives a sense of how open the question was: a 15-place lounge, or eight first class seats plus an 11-place lounge, or 16 first class sleeper seats, or 32 - 45 economy seats. The same physical space, sold four different ways.

Two things ended it. The oil shocks of the 1970s made unsold floor area indefensible, and the [747-300](/boeing_747_family/747-300.php) arrived in 1983 with a **stretched upper deck** and a straight staircase in place of the spiral - both changes made specifically to fit more seats in.

There is [film of the classic cabin schemes](/blog/boeing-747-classic-cabin-layouts-video.html), including the lounges, in the blog.

### The 747-8 cabin

The last generation borrowed heavily from the 787: curved overhead bins, a sculpted ceiling, windows **16 percent larger** than the 747-400's, and solid-state LED lighting that can be set from sunrise to sunset across a flight.

The most visible change was a **sweeping curved staircase** to the upper deck, replacing the straight, narrow stair of the -300 and -400.

- [The 747-8 interior in detail](/interiors/boeing_747-8/)
- [The upper deck lounges](/interiors/upper-deck-lounges.html) - piano bars and swivel chairs
- [Three staircases](/interiors/the-staircase.html) - spiral, straight, then sweeping
- [First class on the 747](/interiors/first-class.html) - sleeper seats to lie-flat beds
- [Galleys and crew rest](/interiors/galleys-and-crew-rest.html) - the parts nobody sees

### Seat maps

Actual airline layouts - British Airways, Lufthansa, Singapore Airlines and United - are collected under [seating layouts](/seating_layouts_on_boeing_747/).

### Related

- [Everything about the Boeing 747-8](/everything-about-the-boeing-747-8/)
- [The 747-8 Intercontinental](/boeing_747_family/747-8i.php)
- [Photo album](/photo_album/)

## Boeing 747-8 Interior Guide: Cabin Architecture

*URL: https://www.boeing-747.com/interiors/boeing_747-8/*

A set of Boeing 747-8 interior concept renderings.

The [747-8](/boeing_747_family/747-8.php) was the last 747, and its cabin was designed alongside the 787. Much of what makes it feel different from a [747-400](/boeing_747_family/747-400.php) came directly from that programme.

### What came from the 787

**Ceiling architecture.** Curved overhead bins, with the centre row designed to look as though it is attached to the curved ceiling rather than integrated into it - the opposite of the approach used on the 777.

**Windows 16 percent larger** than the 747-400's, the same size as those on the 777 and 767-400ER.

**LED lighting.** A solid-state system able to set cabin moods across a flight, from sunrise to sunset, with lower maintenance cost and longer intervals between failures than fluorescent tubes.

### The staircase

On the [747-300](/boeing_747_family/747-300.php) and [-400](/boeing_747_family/747-400.php), the stair to the upper deck is straight and narrow, running from the door 2 galley to the back of the upper deck on the left. The 747-8 replaced it with a **curved, sweeping staircase**.

It was originally to be on the right-hand side and moved back to the left after Lufthansa's order - the launch customer having a view, as launch customers do.

### The space that was never used

Boeing proposed filling the **crown** - the area above the cabin normally holding air conditioning ducts and wiring - by moving the services aside. The plan, marketed as **SkyLoft**, included **SkySuites**: small compartments with sliding doors, beds and entertainment, reached by a separate rear staircase, with passengers sitting in ordinary seats for takeoff and landing.

Pricing studies could not make it work, and Boeing dropped it in 2007 in favour of upper-deck galley storage, which is what airlines had asked for.

### In this section

The pages below are the individual cabin zones Boeing rendered for the 747-8 launch. Together they cover the whole cabin, zone by zone:

- [The forward cabin](/interiors/boeing_747-8/747-8_interiors.php) - the curved-ceiling zone Boeing used to explain the 787-derived architecture.
- [The door 2 entryway](/interiors/boeing_747-8/747-8_interiors_cont.html) - the main-deck entry and its surroundings.
- [The main deck cabin](/interiors/boeing_747-8/boeing_747-8.html) - the 747-8 main deck concept as first shown.
- [The upper deck](/interiors/boeing_747-8/the_747-8_incorporates_feat.php) - the short stretched upper deck with its own galley and evacuation routes.
- [Seating and stowage](/interiors/boeing_747-8/the_747-8_incorporates_feat_2.php) - a second view of the 787-derived seating and bins.
- [The VIP concept](/interiors/boeing_747-8/boeing_business_jet_vip_con.php) - the Boeing Business Jet interior for the 747-8.

The seat-map pages show how airlines actually used the cabin in service: [Lufthansa's 747-8 layout](/seating_layouts_on_boeing_747/lufthansa-747-8.html) is the best-documented example.

### Related

- [The 747-8 family overview](/boeing_747_family/747-8i.php)
- [Improved flying experience](/everything-about-the-boeing-747-8/747-8-improved-flying-experience.html)

## Boeing 747-8 Door 2 Entryway: Staircase Concept

*URL: https://www.boeing-747.com/interiors/boeing_747-8/747-8_interiors_cont.html*

A Boeing 747-8 entryway interior concept.

The entryway at **door 2** on the [747-8](/boeing_747_family/747-8i.php) - for most passengers, the first part of the aircraft they see.

### Why the entry mattered

Boarding is where passengers form an impression of the cabin, so Boeing spent disproportionate design effort on the door 2 area. The sculpted ceiling continues here, and the enlarged 787-derived windows let daylight into the space rather than leaving the entrance in shadow from kerb to seat.

The render also shows the **staircase to the upper deck**, which is the biggest structural change at the entrance. On the [747-300](/boeing_747_family/747-300.php) and [747-400](/boeing_747_family/747-400.php), the stair is straight and narrow, running from the door-2 galley to the back of the upper deck on the left. The 747-8 replaced it with a **curved, sweeping stair**, and extended the window line to where it meets the upper deck.

The stair was originally planned for the right-hand side and was moved back to the left after **Lufthansa's order** - the launch customer's preference winning, as it usually does.

### What is behind the crunch

The jigsaw behind the entryway is the cabin's services: galleys, crew-rest areas and the extra floor space the 747-8's stretch created. Because the flight-crew rest moved to the upper deck, the main deck and lower hold lost less to crew accommodation - part of why the aircraft carries a third more cargo than a 747-400.

For the full cabin rundown, see the [747-8 interior section](/interiors/boeing_747-8/).

## Boeing 747-8 Forward Cabin: Ceiling and Lighting Concept

*URL: https://www.boeing-747.com/interiors/boeing_747-8/747-8_interiors.php*

Concept rendering of a Boeing 747-8 cabin zone.

Boeing's rendering of the **forward cabin zone** on the [747-8](/boeing_747_family/747-8i.php).

### The ceiling that made it feel new

The curve running the length of the ceiling is the clearest inheritance from the 787. On earlier 747s the overhead bins met a flat ceiling panel; here the bins are shaped so the eye reads a continuous arch, which makes a cabin of the same physical width feel larger.

Boeing described the effect as being about **perceived space** rather than actual space - the 747-8's cross-section is the same one the aircraft has had since 1969. The 787-derived details that carry the illusion through the whole cabin are the curved, suspended bins, the larger windows and the LED lighting:

- **Windows** are **16 percent larger** than the [747-400](/boeing_747_family/747-400.php)'s - the same size as those on the 777 and 767-400ER - so the arch reads against a brighter, airier backdrop.
- **LED lighting** replaces fluorescent tubes, capable of setting a cabin mood from sunrise to sunset across a flight, with fewer failures and lower maintenance cost.

### Reading the render

This is a **concept, not a delivered cabin**. Boeing used renderings like this to sell the programme; operational 747-8s vary by airline - seat counts, premium-cabin layout, finishes and even galleys differ from operator to operator. The most detailed public layout is [Lufthansa's](/seating_layouts_on_boeing_747/lufthansa-747-8.html).

For the rest of the cabin, zone by zone, see the [747-8 interior section](/interiors/boeing_747-8/).

## Boeing 747-8 Main Deck: Three-Class Cabin Concept

*URL: https://www.boeing-747.com/interiors/boeing_747-8/boeing_747-8.html*

Boeing 747-8 main deck cabin concept.

A Boeing concept rendering of the **main deck** in a three-class layout.

### What the numbers mean

The [747-8 Intercontinental](/boeing_747_family/747-8i.php) seats **467 passengers in three classes** - 51 more than a [747-400](/boeing_747_family/747-400.php) - gained by the **18 ft 3 in fuselage stretch**. Two of Boeing's cabin moves made those seats fit without cramping the customers:

- The **flight-crew rest moved to the upper deck**, freeing main-deck and lower-hold space that earlier 747s gave to crew bunks.
- The same relocation is why the aircraft carries **37,000 lb of cargo**, a third more than a 747-400 and rather more than an A380.

On the main deck the extra space shows as wider galleys, the swept staircase at door 2 and - for passengers - the familiar **3-4-3 economy** of the 747 era, but in a cabin with the larger windows and LED lighting of the 787-derived interior.

### A concept, not a specification

Renderings like this one are **concepts, not a delivered cabin**: airlines specify their own seats and finishes, so no two operators' 747-8s look alike inside. For how the space was actually sold, see the [Lufthansa 747-8 seat map](/seating_layouts_on_boeing_747/lufthansa-747-8.html) - the best-documented public layout.

[More on the 747-8 interior](/interiors/boeing_747-8/) · [The Intercontinental](/boeing_747_family/747-8i.php)

## The VIP concept

*URL: https://www.boeing-747.com/interiors/boeing_747-8/boeing_business_jet_vip_con.php*

Boeing Business Jet VIP interior concept for the 747-8.

A **Boeing Business Jet** VIP concept for the [747-8](/boeing_747_family/747-8.php): a private interior in an airframe designed to carry 467 people.

### Why the VIP market rescued the flagship

This turned out to matter far more than it looked at the time. Only **48 passenger 747-8s were built**, and airline demand was weak almost from the start - but head-of-state and VIP customers kept buying, because the combination of range, floor area and four engines had no substitute.

The BBJ 747-8 gave customers the largest floor area Boeing Business Jets had to offer, finished - as the render hints - to the owner's exact specification: staterooms, offices and lounges, all on top of the curved 787-derived ceiling, larger windows and LED lighting of the standard cabin. The upper deck, with its own galley and evacuation routes, becomes additional private space rather than premium seats.

### What the concept predicted

The market the render anticipated produced the aircraft's final chapter. Two 747-8s are being converted into the [VC-25B](/special_boeing_747s/vc-25b-bridge-qatar-747-8.html) presidential aircraft, and a Qatari 747-8 entered service as an interim Air Force One in 2026 - so a VIP 747-8 will still be flying long after the last airline retires one.

Head-of-state fleets and the wider [government and VIP 747 story](/special_boeing_747s/government-and-vip-747s.html) are covered in the special-aircraft section.

[More on the 747-8 interior](/interiors/boeing_747-8/) · [Special Boeing 747s](/special_boeing_747s/)

## Seating and stowage

*URL: https://www.boeing-747.com/interiors/boeing_747-8/the_747-8_incorporates_feat_2.php*

A further view of 787-derived cabin features on the 747-8.

The 747-8 cabin showing its **seating configuration and overhead bins**.

### The stowage that made the ceiling

The bins are the 787's contribution. On the 777 the centre bins are built into the ceiling curve; on the 747-8 they are shaped to appear **suspended from it**, leaving the arch visible along the full length of the cabin. The result is the piece of 747-8 styling passengers touch: bigger, curved, opening bins that read as continuous ceiling rather than as a row of lockers.

Main deck seating is typically **3-4-3 in economy** - the standard 747 count that seats ten across - while the economics of a 467-seat aircraft decide the pitch. What the layout gains over a [747-400](/boeing_747_family/747-400.php) is space, not just seats.

Below the floor, the [747-8's cargo capacity](/boeing_747_family/747-8i.php) is a third greater than the 747-400's - partly because the crew rest area moved upstairs. Add the 787-derived lighting and windows, and the interior the render describes is the last real cabin evolution of the 747: overhead-bin arch, LED mood lighting, and floors finished however each airline chose.

For the seat-map view of how operators actually sold this cabin, see the [Lufthansa 747-8 layout](/seating_layouts_on_boeing_747/lufthansa-747-8.html).

[More on the 747-8 interior](/interiors/boeing_747-8/) · [Everything about the 747-8](/everything-about-the-boeing-747-8/)

## The upper deck

*URL: https://www.boeing-747.com/interiors/boeing_747-8/the_747-8_incorporates_feat.php*

The 747-8 upper deck borrows cabin architecture from the 787.

The **upper deck** of the [747-8](/boeing_747_family/747-8i.php), showing the curved ceiling and indirect lighting taken from the 787.

### A cabin between the cabin

The upper deck is effectively a separate cabin: its own galley, its own evacuation routes, and a floor area that cannot be extended. On the 747-8 it gained a new job in cabin planning too - it is where the **flight-crew rest area** moved to, which is what freed main-deck and lower-hold space and contributed to the aircraft carrying a third more cargo than a 747-400.

Airlines have generally used the upper deck as a premium cabin since the [747-300](/boeing_747_family/747-300.php) stretched it - a long way from the [lounges and piano bars](/blog/boeing-747-classic-cabin-layouts-video.html) of the first 747s. In the classic cabin schemes the space held swivel chairs and bars; forty years on it holds lie-flat beds and a stair to the business cabin.

The seating is typically **2-2 in first class and 3-3 in economy**, against 3-4-3 downstairs, which is much of why passengers seek it out - and why airlines can charge for it.

### The light and the mood

Being the smaller cabin, the upper deck shows off the 787's details clearly: the curved ceiling, larger windows (16 percent bigger than the 747-400's) and LED lighting that can run from sunrise to sunset across a flight.

[More on the 747-8 interior](/interiors/boeing_747-8/) · [The stretched upper deck](/boeing_747_family/747-300.php)

## First class on the 747

*URL: https://www.boeing-747.com/interiors/first-class.html*

From 16 first class sleeper seats on the 747-200 options list to lie-flat beds and the 747-8's upper deck.

The 747 sold the front of the aircraft for its entire career, and how it did so tracks the whole history of premium air travel.

### The sleeper seats

The [747-200](/boeing_747_family/747-200.php) options list already offered **16 first class sleeper seats** on the upper deck as an alternative to a [lounge](/interiors/upper-deck-lounges.html) - in the early 1970s, when most of the industry's idea of premium was a wider seat and more legroom.

Downstairs, first class occupied the nose section ahead of the wing: the quietest part of the aircraft, furthest from the engines.

### Upstairs or downstairs

The 747 gave airlines an unusual choice, and they never fully agreed on it.

**Upstairs** is a small, separate cabin with its own galley and crew, reached by [a staircase](/interiors/the-staircase.html), typically **2-2**. It feels private, and frequent flyers sought it out.

**Downstairs in the nose** is wider, quieter still, and easier to serve - but part of the same deck as everything else.

Different carriers put first in different places, and some put business upstairs and first in the nose. British Airways' Club World upper deck became the best-known example of the small-cabin approach.

### The lie-flat era

The 1990s and 2000s brought **lie-flat beds**, and the 747 carried them well because the nose section and the upper deck both suited enclosed suites better than a straight tube of a cabin.

The [United Airlines seat maps](/seating_layouts_on_boeing_747/united_airlines_747_seat_layout.php) on this site show the 747-400 in that configuration.

### The last first class

The [747-8 Intercontinental](/boeing_747_family/747-8i.php) carried **467 passengers in three classes**, with the [787-derived cabin](/interiors/boeing_747-8/) - larger windows, LED mood lighting, curved ceiling architecture - and a sweeping staircase to a business cabin upstairs.

Lufthansa, which took **19** of them and still flies them, is where you can still find a 747 first class cabin in scheduled service. That will not be true forever.

### What went the other way

It is worth noting the opposite extreme on the same airframe. The [747-400D](/boeing_747_family/747-400d.php) was certified for up to **660 passengers** in a single class for Japanese domestic routes - the same aeroplane, with the premium cabins deleted entirely and the winglets removed.

The 747 could be a flying lounge or a commuter bus, and it was both at once in different parts of the world.

### Related

- [747 interiors](/interiors/)
- [Seating layouts](/seating_layouts_on_boeing_747/)
- [The upper deck lounges](/interiors/upper-deck-lounges.html)

## Galleys and crew rest

*URL: https://www.boeing-747.com/interiors/galleys-and-crew-rest.html*

Galleys, carts, lower-deck facilities and crew rest compartments - and why the 747-8 moved crew rest upstairs to free revenue space.

A [747-400](/boeing_747_family/747-400.php) carries 416 passengers on flights of up to fourteen hours. Feeding them, and resting the people who do it, takes a surprising amount of the aeroplane.

### Galleys

Meals are loaded in **carts** that lock into galley units, so catering is a matter of exchanging trolleys rather than loading loose items. On an aircraft this size that is the only workable approach - several hundred meals, twice, on a long sector.

Galleys are distributed rather than centralised: forward, mid and aft, so that no cabin crew member is pushing a cart the full length of a 231-foot fuselage. The [upper deck](/interiors/upper-deck-lounges.html) has its own, which is part of why it functions as a separate cabin.

Some 747 operators used **lower-deck galley facilities** connected by lift, moving food preparation off the main deck entirely and freeing floor area for seats. It is an idea that only makes sense on an aircraft with a hold tall enough to stand up in.

### Crew rest

On a sector long enough to need a relief crew, those people have to sleep somewhere, and it cannot be a passenger seat.

747s carried **crew rest compartments** - bunks for flight crew, separate provision for cabin crew - located variously in the upper deck aft of the flight deck, in the crown space above the cabin, or in the rear of the main deck depending on the operator and generation.

The [747-300](/boeing_747_family/747-300.php) offered an optional **flight-crew rest area immediately aft of the flight deck** as part of its stretched upper deck.

### The 747-8's rearrangement

The [747-8 Intercontinental](/boeing_747_family/747-8i.php) moved **flight crew rest to the upper deck**, and that decision had a larger effect than it sounds.

Taking crew rest out of the main deck and the lower hold freed space for **passengers and cargo**. It is a significant part of why the -8I carries **37,000 lb of cargo** - a third more than a 747-400, and more than an A380 - despite being a passenger aircraft.

Boeing also proposed using the **crown space** above the cabin, normally occupied by air conditioning ducting and wiring, for galleys and crew rest by moving the services to the sides. The [SkyLoft concept](/interiors/boeing_747-8/) went further and tried to sell that space to passengers; it was dropped in 2007 when the pricing would not work, and airlines took the upper-deck galley storage instead.

### Why none of this is visible

All of it is designed to be invisible. The measure of a galley is that meals arrive on time and nobody notices the machinery; the measure of a crew rest compartment is that the relief crew are alert when they take over.

It is a large fraction of the cabin, and the only part passengers are meant not to see.

### Related

- [747 interiors](/interiors/)
- [The 747-8 interior](/interiors/boeing_747-8/)
- [Seating layouts](/seating_layouts_on_boeing_747/)

## Three staircases

*URL: https://www.boeing-747.com/interiors/the-staircase.html*

The spiral stair of the early 747 gave way to a straight one on the -300 to free up floor area, and to a curved sweep on the 747-8.

No other airliner has a staircase as part of its identity. The 747's changed three times, and each change was driven by the same thing: **floor area is revenue**.

### The spiral

Early [747-100s](/boeing_747_family/747-100.php) and [-200s](/boeing_747_family/747-200.php) used a **spiral staircase** to reach the [upper deck lounge](/interiors/upper-deck-lounges.html). It is the version that appears in every nostalgic photograph, and it was genuinely elegant.

It was also expensive in the only currency that mattered. A helical stair needs clear space around its full circumference on both decks - so it consumed cabin floor upstairs and down, at the widest and most valuable part of the fuselage.

### The straight stair

The [747-300](/boeing_747_family/747-300.php) in 1983 replaced it with a **straight staircase** running aft from the door 2 galley area, on the left-hand side.

Boeing was explicit that this was about seats: a straight run against the sidewall frees the floor a spiral consumed, and the space recovered above and below took more seats. It arrived alongside the **stretched upper deck**, and together the two changes are why the -300 carried about 10 percent more passengers than a [-200](/boeing_747_family/747-200.php) on identical weights.

The [747-400](/boeing_747_family/747-400.php) kept it.

### The sweep

The [747-8 Intercontinental](/boeing_747_family/747-8i.php) introduced a **curved, sweeping staircase** - the first time since the spiral that the stair was allowed to be a feature rather than purely a means of access.

It was originally to be on the **right-hand side** and was moved back to the left after Lufthansa's order, the launch customer's preference prevailing. The window line was extended to where the stair meets the upper deck so the climb is not made in the dark.

### Why it matters more than it sounds

The staircase is a good lens on the whole aircraft. In 1970 the 747's problem was **filling** it, so the upper deck was a bar and the stair was a flourish. By 1983 the problem was **economics**, so the stair became a straight run against a wall. By 2011, with the 747-8 fighting the A380 for a shrinking market, it became a flourish again - because at that point the aircraft was being sold partly on how it felt.

Three staircases, three different arguments about what the aeroplane was for.

### Related

- [The upper deck lounges](/interiors/upper-deck-lounges.html)
- [The 747-8 interior](/interiors/boeing_747-8/)
- [The 747-300](/boeing_747_family/747-300.php)

## When the hump was a bar

*URL: https://www.boeing-747.com/interiors/upper-deck-lounges.html*

The early 747's upper deck was a lounge, not a cabin, and airlines competed over what to put in it. Economics ended it.

For roughly the first decade of the 747's life, the space behind the flight deck was **not a cabin**. It was a lounge, reached by a spiral staircase, and what went in it was a matter of airline taste.

### Why the space existed at all

By accident, essentially. The [flight deck was placed above the main deck](/boeing_747_family/747-100.php) so the nose could hinge up for freight loading. That left a volume behind it with no assigned purpose - and in 1970, when the aircraft's problem was filling it rather than cramming it, a lounge was a reasonable answer.

### What airlines put there

**American Airlines** fitted a **piano bar**. Others installed standing bars, swivel chairs and low tables. The [747-200](/boeing_747_family/747-200.php)'s options list captures how open the question was:

| Option | Detail |
|---|---|
| Lounge | 15 places |
| Mixed | 8 first class seats plus an 11-place lounge |
| Sleepers | 16 first class sleeper seats |
| Economy | 32 - 45 seats |

The same physical space, sold four different ways - and the last of those options shows where things were heading.

### The spiral staircase

The early aircraft reached the upper deck by a **spiral staircase**, which is the detail people remember most fondly and which was the first thing to go.

It ate floor area both above and below, because a helix needs clearance all the way round. The [747-300](/boeing_747_family/747-300.php) replaced it with a **straight stair**, and that change alone created room for more seats at both levels. The [747-8](/interiors/boeing_747-8/) later restored some of the drama with a **curved, sweeping staircase**, but by then it led to a cabin, not a bar.

### Why the lounges ended

Two things, in order.

**The oil shocks of the 1970s.** Fuel costs rose sharply and every square foot of a widebody cabin had to justify itself. A lounge generates no revenue, and an aircraft carrying an empty bar across the Atlantic is carrying weight for nothing.

**The stretched upper deck.** When the [747-300](/boeing_747_family/747-300.php) arrived in 1983 with a deck **23 ft 4 in longer**, the space stopped being an awkward leftover and became a proper cabin - around 44 more seats' worth. Once it was big enough to sell, it was sold.

### What replaced it

Not nothing. The upper deck became the most sought-after cabin on the aircraft: typically **2-2 in first or 3-3 in economy** against 3-4-3 downstairs, with its own galley, its own crew and a staircase separating it from the rest of the aeroplane. British Airways' Club World upper deck developed a following out of all proportion to its twenty-odd seats.

The bar went, but the sense of being somewhere separate survived to the end.

### Related

- [747 interiors](/interiors/)
- [Classic 747 cabin schemes on film](/blog/boeing-747-classic-cabin-layouts-video.html)
- [Seating layouts](/seating_layouts_on_boeing_747/)

## Links and further reading

*URL: https://www.boeing-747.com/links.php*

Museums holding preserved 747s, reference sources, and where the surviving special-mission aircraft ended up.

Places to see a 747 in person, and sources worth reading. Every external link below was checked and working when this page was last updated.

### See a 747

**[The City of Everett, Museum of Flight, Seattle](https://www.museumofflight.org/aircraft/boeing-747-121)**
The **first 747 ever built**, RA001, registered N7470. It first flew on 9 February 1969 and Boeing kept it rather than delivering it. Restored over nearly two years and reopened to visitors in 2014, now under cover in the museum's Aviation Pavilion. See [our page on the restoration](/blog/boeing-747-1-queen-of-the.html).

**[VH-OJA, HARS Aviation Museum, Illawarra, Australia](https://hars.org.au/aircraft/boeing-747-438-vh-oja/)**
The Qantas [747-400](/boeing_747_family/747-400.php) that flew London to Sydney nonstop in 1989 - 9,720 nautical miles in 20 hours 9 minutes. Qantas's [last 747 dipped its wings to this aircraft](/airlines/) on its farewell flight in July 2020.

**[NASA 905, Space Center Houston](https://spacecenter.org/exhibits-and-experiences/independence/)**
A [Shuttle Carrier Aircraft](/special_boeing_747s/shuttle_carrier_aircraft.php) - a former American Airlines [747-100](/boeing_747_family/747-100.php) - displayed with a full-size shuttle replica mounted on its back, so the pairing can still be seen as it flew.

**[Joe Davies Heritage Airpark, Palmdale, California](https://www.cityofpalmdale.org/389/Joe-Davies-Heritage-Airpark)**
Home to **NASA 911**, the second Shuttle Carrier Aircraft - originally a Japan Air Lines [747-100SR](/boeing_747_family/747-100sr.php) built for high-density domestic routes before NASA converted it.

**[Smithsonian National Air and Space Museum](https://airandspace.si.edu/)**
Holds Space Shuttle *Discovery* at the Udvar-Hazy Center - [delivered there in 2012 on the back of a 747](/blog/space-shuttle-discovery.php).

### Still flying

**[Stratolaunch](https://www.stratolaunch.com/)**
Operates *Spirit of Mojave*, formerly Virgin Orbit's **Cosmic Girl** - the [747-400](/boeing_747_family/747-400.php) that air-launched satellites into orbit and is now being converted again as a hypersonic testbed carrier. [The full story](/blog/virgin-galactic-will-use-a.html).

**[NASA Armstrong: Shuttle Carrier Aircraft fact sheet](https://www.nasa.gov/centers-and-facilities/armstrong/nasa-armstrong-fact-sheet-shuttle-carrier-aircraft/)**
NASA's own technical account of how two airliners were modified to carry spacecraft.

### Reference

**[Boeing 747 - Wikipedia](https://en.wikipedia.org/wiki/Boeing_747)**
The best general starting point, with detailed specification tables per variant.

**[List of Boeing 747 operators - Wikipedia](https://en.wikipedia.org/wiki/List_of_Boeing_747_operators)**
Orders and deliveries by airline, and a summary-of-deliveries table by variant. The source for much of [our airlines page](/airlines/).

**[Aviation Safety Network](https://aviation-safety.net/)**
The standard public database of accidents and incidents, searchable by type and operator. See also [747 accidents](/accidents_with_boeing_747s/).

**[Airliners.net](https://www.airliners.net/)**
A very large photographic archive, useful for identifying variants and liveries.

### On this site

- [The 747 family](/boeing_747_family/) - every variant, from the [747-100](/boeing_747_family/747-100.php) to the [747-8](/boeing_747_family/747-8.php)
- [Everything about the Boeing 747-8](/everything-about-the-boeing-747-8/)
- [Special Boeing 747s](/special_boeing_747s/) - Air Force One, the Dreamlifter, SOFIA, the Supertanker
- [Airlines](/airlines/) - who flew it, and who still does
- [Videos](/videos/) and the [photo album](/photo_album/)
- [Contact us](/contact_me.php) - corrections and additions are welcome

### A note on two removed links

This page previously linked to **Plane Nation** and **Airline Nation**. Both domains have lapsed and no longer resolve, so the links have been removed rather than left to fail.

## Live Boeing 747 Flight Map

*URL: https://www.boeing-747.com/live-boeing-747-map.html*

import Live747Map from '../../components/Live747Map.astro';

Explore Boeing 747s currently detected in flight by the ADSB.lol receiver network.
Start the map, select a plane, or search its registration or callsign. The count
is the number of recent airborne reports with positions, not the world's total
airborne 747 fleet.

### What the map can show

The map includes reported 747-100, -200, -300, -400, -8, 747SR, 747SP, Dreamlifter
and Shuttle Carrier Aircraft types when present in the source. Freighters and passenger
aircraft share some type codes, so a type filter does not establish cabin use.
Aircraft identifiers and type labels can be incomplete or incorrect.

The custom map excludes reports without coordinates, with a ground status or
with positions older than 90 seconds when the feed is fetched. The shared feed is cached for
up to 60 seconds. Positions are hidden when the feed becomes more than two
minutes old. No straight-line position prediction fills coverage gaps.

The custom map fetches flight data through this website only after you press Start.
The provider receives a server request, not a direct request from your browser.
The world basemap is bundled locally. Map use does not require analytics or
advertising consent. Live updates pause when this browser tab is hidden.

If the custom feed is unavailable, choose **Load external live map** to view
ADSB.lol's public map inside this page. It starts with the same 747 type filter
and a reported altitude above 0 ft. Its receiver coverage, freshness rules,
controls and update timing belong to ADSB.lol. Our custom map pauses while it
is open. Choose **Unload external map** to stop its requests.

The external map connects your browser directly to ADSB.lol and its map
services. It stays unloaded until you choose to load it. See
[ADSB.lol's privacy notice](https://www.adsb.lol/privacy-license/) before loading.

### Why some 747s are missing

Ground receiver coverage is uneven, especially across oceans and remote areas.
A missing marker can mean unavailable reception, stale data, missing aircraft
metadata or a landing. It is not evidence that the aircraft has stopped flying.
There is no guarantee that a free receiver feed detects every airborne 747.

For fleet context, see the [active 747 operators](/active-boeing-747-fleet.html)
and [aircraft registry](/boeing-747-aircraft-registry.html). To distinguish models
in photographs, use the [variant identification guide](/features/identify-boeing-747-variants.html).

## Boeing 747 After Production: Cargo and Special Roles

*URL: https://www.boeing-747.com/news.php*

747 production ended in January 2023 after 1,574 aircraft. Four airlines still fly passenger 747s, the freighter fleets are large, and two 747-8s are becoming Air Force One.

After production ended, the Boeing 747 continued in cargo and special roles. For current operator evidence, use the [active Boeing 747 fleet tracker](/active-boeing-747-fleet.html).

**About this page.** The original page here carried a syndicated news feed that no longer exists. Rather than leave it empty, it now sets out where the aircraft actually stands. For dated posts going back to 2009, see the [blog](/blog/).

### Production has ended

The 747 is no longer made. The last one, a [747-8 Freighter](/boeing_747_family/747-8f.php), was [handed over to Atlas Air on 31 January 2023](/blog/final-boeing-747-delivered-to-atlas-air.html), closing a production run that had started in 1968 and totalled **1,574 aircraft**.

The passenger line had effectively stopped long before. The last passenger [747-400](/boeing_747_family/747-400.php) was built in 2005, and only **48** [747-8 Intercontinentals](/boeing_747_family/747-8i.php) were ever completed against **107** freighters.

### Who still flies one

**With passengers:** Lufthansa, Korean Air, Air China and Rossiya Airlines, in the disclosures reviewed on 2026-09-04 (4 September 2026).

**With freight:** a great many. In March 2026 Atlas Air reported 17 747-8Fs, 39 747-400Fs and four Dreamlifters. UPS, Cargolux, Kalitta Air and Korean Air Cargo also publish substantial 747 fleets.

That split is the whole story of the type's last decade. A passenger 747 is retired when its fuel burn per seat stops competing with a twin; a freighter is retired when the airframe runs out of cycles. The [freighters delivered in the 2010s and early 2020s](/boeing_747_family/747-8f.php) have decades of work ahead of them, which means the 747 will be flying well into the 2040s.

The source dates and exact operator snapshots are in the [active Boeing 747 fleet tracker](/active-boeing-747-fleet.html). Historical retirements are on the [airlines page](/airlines/).

### Presidential aircraft

The most visible 747s now in the news are not airliners.

Two [747-8s are being converted into VC-25B](/special_boeing_747s/vc-25b-bridge-qatar-747-8.html) presidential aircraft to replace the ageing [VC-25A](/special_boeing_747s/boeing_vc25_air_force_one.php) pair, which are [747-200](/boeing_747_family/747-200.php) airframes dating from 1990. Separately, the U.S. Air Force said its 747-8 "Bridge" aircraft arrived at Joint Base Andrews for commissioning flights in June 2026.

It is a fitting last act: the 747 will still be carrying heads of state long after the last airline retires one.

### What happened to the rest

Most retired passenger 747s were scrapped - a four-engined widebody has little value once no airline wants it, and the parts are worth more than the airframe. The soundest were [converted into freighters](/boeing_747_family/747-400bcf.php), which is how a good number are still working.

A handful found stranger afterlives. One became [Cosmic Girl](/blog/virgin-galactic-will-use-a.html), launching satellites into orbit from under its wing, and is now being converted again as a hypersonic testbed carrier. Others became [Shuttle Carriers, a flying observatory, a firefighting tanker and an airborne laser](/special_boeing_747s/).

Several are preserved and can be visited - including the [very first 747 ever built](/preserved-boeing-747s.html).

### Where to read more

- [The blog](/blog/) - dated posts from 2009 onward, with updates added where the outcome is now known
- [Airlines](/airlines/) - who flew it, who still does, and every major retirement date
- [The 747 family](/boeing_747_family/) - every variant with production numbers
- [Everything about the Boeing 747-8](/everything-about-the-boeing-747-8/) - the final generation in detail

## Photo Album

*URL: https://www.boeing-747.com/photo_album/*

A photographic survey of the Boeing 747 in airline, freight, military, scientific and space service.

The 747 has been photographed more than almost any other aircraft, and this album covers the range of what it has actually done - airline service, freight, government transport, science, firefighting and space.

Most of these images date from the 1990s and 2000s, when the 747 was still the default long-haul aircraft rather than a curiosity. A few are older.

Use the arrows or the thumbnail strip to move through the album, or open any photograph for its own page.

### Where to go next

- [The 747 family](/boeing_747_family/) - every variant, from the 747-100 to the 747-8
- [Special Boeing 747s](/special_boeing_747s/) - Air Force One, the Dreamlifter, the Shuttle Carrier and more
- [The Boeing 747-8 photo album](/photo_album/boeing_747-8_photo_album/) - the final generation, factory floor to first flight

## Boeing 747-8 Photos

*URL: https://www.boeing-747.com/photo_album/boeing_747-8_photo_album/*

The Boeing 747-8 photographed from factory floor to first flight and into airline service.

The 747-8 was the last 747, and it was photographed from the start. This album follows it from bare structure on the Everett floor through paint, roll-out and first flight to airline service.

It is worth watching the wing in these pictures. The 747-8 was given an entirely [new wing](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html) rather than a modified 747-400 one, and in the assembly shots the raked tip that replaced the 747-400's upright winglet is clearly visible.

Use the arrows or the thumbnails to move through the album.

### Where to go next

- [Everything about the 747-8](/everything-about-the-boeing-747-8/) - the full guide to the final generation
- [The 747-8 flight deck](/everything-about-the-boeing-747-8/boeing-747-8-flight-deck.html)
- [The last Boeing 747 is delivered](/blog/final-boeing-747-delivered-to-atlas-air.html)

## Preserved Boeing 747s You Can Visit

*URL: https://www.boeing-747.com/preserved-boeing-747s.html*

Selected publicly displayed 747s include the first 747, two Shuttle Carrier Aircraft, SOFIA, an early 747-400 and museum aircraft in Europe, South Africa and Australia.

The production line has closed, but important Boeing 747s remain accessible in museums and public exhibits. This directory concentrates on aircraft whose locations and public status can be checked on an **official venue website**.

**Last checked: 4 September 2026.** Opening hours, interior tours and aircraft access can change. Follow the official link and confirm arrangements before making a special trip.

### United States

| Aircraft | Venue | Why it matters | Visitor information |
|---|---|---|---|
| **RA001 - N7470**, 747-121 | The Museum of Flight, Seattle | The first 747 built, preserved in flight-test configuration | [Official aircraft page](https://www.museumofflight.org/Exhibits-and-Events/Aircraft/boeing-747-121) |
| **N661US**, 747-451 | Delta Flight Museum, Atlanta | The first production 747-400; now the museum's outdoor 747 Experience | [Official exhibit page](https://deltamuseum.org/experiences/exhibits/aircraft-on-view-outside/outside-exhibits/boeing-747-400) |
| **N747GE**, 747-121 | Pima Air & Space Museum, Tucson | The 25th 747, later used by General Electric as an engine testbed | [Official aircraft page](https://pimaair.org/museum-aircraft/boeing-747-121/) |
| **SOFIA - N747NA**, 747SP-21 | Pima Air & Space Museum, Tucson | NASA and DLR's airborne infrared observatory | [Current open-aircraft information](https://pimaair.org/open-airplane/) |
| **NASA 905 - N905NA**, 747-123 | Space Center Houston | Shuttle Carrier Aircraft displayed with the shuttle replica *Independence* | [Independence Plaza](https://spacecenter.org/independence/) |
| **NASA 911 - N911NA**, 747SR-46 | Joe Davies Heritage Airpark, Palmdale | NASA's second Shuttle Carrier Aircraft | [Official airpark page](https://www.cityofpalmdaleca.gov/205/Joe-Davies-Heritage-Airpark) |

RA001 is especially valuable for researchers because the Museum of Flight also publishes virtual views of its cockpit, lounge and lower bay. The two Shuttle Carrier Aircraft show how extensively the 747 airframe could be adapted for special missions.

### Europe

| Aircraft | Venue | Why it matters | Visitor information |
|---|---|---|---|
| **PH-BUK "Louis Blériot"**, 747-206B | Aviodrome, Lelystad, Netherlands | Former KLM 747-200 displayed as part of the museum collection | [Official collection page](https://www.aviodrome.nl/en/discover/what-to-do/collection/boeing-747) |
| **D-ABYM "Schleswig-Holstein"**, 747-230 | Technik Museum Speyer, Germany | Former Lufthansa classic mounted high above the museum site | [Official exhibit page](https://www.technik-museum.de/en/discover/exhibits/boeing-747-jumbo-jet/) |

### Australia and South Africa

| Aircraft | Venue | Why it matters | Visitor information |
|---|---|---|---|
| **VH-OJA "City of Canberra"**, 747-438 | HARS Aviation Museum, Illawarra, Australia | Qantas's first 747-400 and a former London - Sydney record holder | [Official aircraft page](https://hars.org.au/aircraft/boeing-747-438-vh-oja/) |
| **ZS-SAN "Lebombo"**, 747-244B | SAA Museum Society, Germiston, South Africa | Preserved South African Airways 747-200 | [Official visit information](https://saamuseum.co.za/day-trips/) |
| **ZS-SPC "Maluti"**, 747SP-44 | SAA Museum Society, Germiston, South Africa | One of the comparatively rare shortened 747SPs | [Official visit information](https://saamuseum.co.za/day-trips/) |

### Scope of this directory

This is a curated set of confirmed public exhibits, **not a census of every surviving 747**. Aircraft used as restaurants, event venues, training airframes or closed displays are omitted unless a current institutional page clearly describes public access. A listing here does not guarantee that visitors can enter the aircraft.

If you know of a museum aircraft that should be added, send its registration and an official venue page through the [contact page](/contact_me.php). That evidence requirement keeps the directory useful when aircraft move or exhibits close.

### Download the directory

- [CSV: preserved Boeing 747 exhibits](/data/preserved-boeing-747-exhibits.csv)
- [JSON: preserved Boeing 747 exhibits](/data/preserved-boeing-747-exhibits.json)

The dataset and original map are licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/). Attribute Boeing-747.com and link to this page. For more special aircraft, visit [Special Boeing 747s](/special_boeing_747s/); to tell the versions apart, use the [747 identification guide](/features/identify-boeing-747-variants.html).

## Privacy policy

*URL: https://www.boeing-747.com/privacy-policy.html*

Analytics and Google AdSense ads are blocked until allowed. You can allow analytics and media without ads, or keep optional services blocked.

*Last updated 2026-10-03 (3 October 2026).*

Boeing-747.com is a static reference site about an aircraft. There are no accounts, shopping or newsletters. Optional Google AdSense advertising helps support the site. This page sets out exactly what happens when you visit.

### What the site does not do

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Any dispute over privacy is subject to this policy and the [terms of use](/terms-of-use.html), including the governing law stated there.

## D-ABYM: Schleswig-Holstein at Speyer

*URL: https://www.boeing-747.com/registry/d-abym.html*

Speyer's Schleswig-Holstein is the classic Lufthansa 747 associated with serial number 21588. Its dramatic elevated display gives visitors access to areas that are difficult to examine on a working airliner.

Speyer's Schleswig-Holstein is the classic Lufthansa 747 associated with serial number 21588. Its dramatic elevated display gives visitors access to areas that are difficult to examine on a working airliner.

### Aircraft identity

- **Registration:** D-ABYM
- **Variant:** Boeing 747-230
- **Serial number:** 21588
- **Operator history:** Lufthansa 1978 - 2002
- **Record status:** Preserved

### Aircraft history

| Date or period | Milestone |
|---|---|
| 1978 | Constructed for Lufthansa. [Source](https://www.technik-museum.de/en/discover/exhibits/boeing-747-jumbo-jet/) |
| 2002 | Made its final flight from Frankfurt to Karlsruhe/Baden-Baden before dismantling. [Source](https://www.technik-museum.de/en/discover/exhibits/boeing-747-jumbo-jet/) |
| 21 - 23 March 2002 | The dismantled aircraft travelled to Speyer; the fuselage was carried along the Rhine. [Source](https://saamuseum.co.za/pdfs/SAA_Museum_List_of_preserved_and_interesting_Boeing_747_aircraft_including_the_747SP.pdf) |
| Museum display | Reassembled on supports, with the cabin, cargo hold and part of the wing accessible. [Source](https://www.technik-museum.de/en/discover/exhibits/boeing-747-jumbo-jet/) |

### What makes this aircraft important

Registration warning: Lufthansa later reused D-ABYM for a 747-8. That newer aircraft is a different airframe. This page concerns the preserved 747-230 and identifies it by serial number as well as its former registration.

### Status and access

The official collection or venue record lists this aircraft at **Technik Museum Speyer, Germany**. Interior access, tours and opening arrangements can change. [Check the venue information](https://www.technik-museum.de/en/discover/exhibits/boeing-747-jumbo-jet/) before visiting.

**Sources checked: 3 October 2026.** Dates are as specific as the confirming source; an undated milestone is labelled as a period rather than given an invented day.

### Related

- [All individual aircraft histories](/boeing-747-aircraft-registry.html)
- [Classic 747 variants](/boeing_747_family/747-200.php)

## G-BDXH: City of Edinburgh

*URL: https://www.boeing-747.com/registry/g-bdxh.html*

British Airways' City of Edinburgh became famous for surviving a volcanic-ash encounter over Java. Its story continued after the emergency: the aircraft was repaired, returned to passenger work and later flew for another operator.

British Airways' City of Edinburgh became famous for surviving a volcanic-ash encounter over Java. Its story continued after the emergency: the aircraft was repaired, returned to passenger work and later flew for another operator.

### Aircraft identity

- **Registration:** G-BDXH
- **Variant:** Boeing 747-236B
- **Operator history:** British Airways 1979 - 2002; European Aviation Air Charter from 2002; aircraft withdrawn in 2004
- **Record status:** Cockpit retained

### Aircraft history

| Date or period | Milestone |
|---|---|
| March 1979 | Delivered to British Airways. [Source](https://en.wikipedia.org/wiki/British_Airways_Flight_009) |
| 24 June 1982 | Lost all four engines in volcanic ash; restarted them and landed at Jakarta with all 263 people surviving. [Source](https://en.wikipedia.org/wiki/British_Airways_Flight_009) |
| 9 August 1996 | An AAIB incident record confirms continued airline service well after the ash encounter. [Source](https://www.gov.uk/aaib-reports/boeing-747-236b-g-bdxh-9-august-1996) |
| January 2002 | Sold to European Aviation Air Charter. [Source](https://en.wikipedia.org/wiki/British_Airways_Flight_009) |
| July 2009 | The aircraft was broken up at Bournemouth; the cockpit survived. [Source](https://en.wikipedia.org/wiki/British_Airways_Flight_009) |
| 2024 restoration update | South Wales Aviation Museum documented work on the retained cockpit. [Source](https://www.southwalesaviationmuseum.com/news) |

### What makes this aircraft important

The museum describes restoration work, rather than promising that the cockpit is currently open. Check directly before travelling. The original complete 747 is no longer intact.

### Status and access

Cockpit restoration documented at South Wales Aviation Museum. This is a dated historical or operator record; it is not a live location service. [Read the confirming source](https://www.southwalesaviationmuseum.com/news).

**Sources checked: 3 October 2026.** Dates are as specific as the confirming source; an undated milestone is labelled as a period rather than given an invented day.

### Related

- [All individual aircraft histories](/boeing-747-aircraft-registry.html)
- [British Airways Flight 9: the incident](/accidents_with_boeing_747s/british-airways-9.html)

## JA8119: Japan Air Lines' Short-Range Jumbo

*URL: https://www.boeing-747.com/registry/ja8119.html*

JA8119 was a Japan Air Lines short-range 747 used on domestic routes. Its airframe history is central to understanding Flight 123: damage sustained years earlier, an improper structural repair, repeated pressurisation cycles and a later catastrophic failure.

JA8119 was a Japan Air Lines short-range 747 used on domestic routes. Its airframe history is central to understanding Flight 123: damage sustained years earlier, an improper structural repair, repeated pressurisation cycles and a later catastrophic failure.

### Aircraft identity

- **Registration:** JA8119
- **Variant:** Boeing 747SR-46
- **Serial number:** 20783
- **Operator history:** Japan Air Lines domestic service; destroyed 12 August 1985
- **Record status:** Lost

### Aircraft history

| Date or period | Milestone |
|---|---|
| Domestic service | Configured for high-capacity short routes within Japan. [Source](https://www.faa.gov/lessons_learned/transport_airplane/accidents/JA8119) |
| 2 June 1978 | A tail strike at Osaka damaged the aft fuselage and rear pressure bulkhead. [Source](https://www.faa.gov/lessons_learned/transport_airplane/accidents/JA8119) |
| 1978 repair | A Boeing repair deviated from the specified splice arrangement, reducing the bulkhead's fatigue strength. [Source](https://www.faa.gov/lessons_learned/transport_airplane/accidents/JA8119) |
| 12 August 1985 | The bulkhead failed during Flight 123; tail damage and hydraulic losses preceded the crash. Of 524 aboard, 520 died and four survived. [Source](https://jtsb.mlit.go.jp/aircraft/download/62-2-JA8119-01.pdf) |
| 1987 investigation | The Japanese report linked the failure to fatigue cracking from the improper repair. [Source](https://www.faa.gov/lessons_learned/transport_airplane/accidents/JA8119) |

### What makes this aircraft important

The photograph records the actual aircraft on its final flight, after damage to its tail. For the accident sequence and resulting safety changes, use the linked detailed account.

### Status and access

Aircraft destroyed; no complete surviving airframe. This is a dated historical or operator record; it is not a live location service. [Read the confirming source](https://www.faa.gov/lessons_learned/transport_airplane/accidents/JA8119).

**Sources checked: 3 October 2026.** Dates are as specific as the confirming source; an undated milestone is labelled as a period rather than given an invented day.

### Related

- [All individual aircraft histories](/boeing-747-aircraft-registry.html)
- [Japan Air Lines Flight 123](/accidents_with_boeing_747s/jal-123.html)
- [747 control redundancy](/boeing-747-internals/control-redundancy-and-backup-modes.html)

## N661US: The First 747-400

*URL: https://www.boeing-747.com/registry/n661us.html*

Delta's Ship 6301 was the first 747-400 built. It began as a Boeing and Pratt & Whitney test aircraft before entering Northwest service, then joined Delta following the airlines' merger. The same airframe is now the museum's 747 Experience.

Delta's Ship 6301 was the first 747-400 built. It began as a Boeing and Pratt & Whitney test aircraft before entering Northwest service, then joined Delta following the airlines' merger. The same airframe is now the museum's 747 Experience.

### Aircraft identity

- **Registration:** N661US
- **Variant:** Boeing 747-451
- **Serial number:** 23719
- **Former registrations:** N401PW
- **Operator history:** Boeing and Pratt & Whitney test aircraft; Northwest from 1989; Delta following the 2008 merger until 2015
- **Record status:** Preserved

### Aircraft history

| Date or period | Milestone |
|---|---|
| 29 April 1988 | First flight as N401PW; used for engine testing before airline delivery. [Source](https://deltamuseum.org/experiences/exhibits/aircraft-on-view-outside/outside-exhibits/boeing-747-400) |
| 8 December 1989 | Delivered to Northwest Airlines as N661US. [Source](https://deltamuseum.org/experiences/exhibits/aircraft-on-view-outside/outside-exhibits/boeing-747-400) |
| 2008 | Joined the Delta fleet following the Northwest merger. [Source](https://deltamuseum.org/experiences/exhibits/aircraft-on-view-outside/outside-exhibits/boeing-747-400) |
| 9 September 2015 | Final flight, Honolulu to Atlanta, after more than 61 million miles. [Source](https://deltamuseum.org/experiences/exhibits/aircraft-on-view-outside/outside-exhibits/boeing-747-400) |
| 30 April 2016 | Moved to the Delta Flight Museum. [Source](https://deltamuseum.org/experiences/exhibits/aircraft-on-view-outside/outside-exhibits/boeing-747-400) |
| 28 March 2017 | Opened as the 747 Experience exhibition. [Source](https://deltamuseum.org/experiences/exhibits/aircraft-on-view-outside/outside-exhibits/boeing-747-400) |

### What makes this aircraft important

The exhibit includes the upper deck and a view behind the cabin walls. Check the museum's opening information before visiting; aircraft access follows its own schedule.

### Status and access

The official collection or venue record lists this aircraft at **Delta Flight Museum, Atlanta**. Interior access, tours and opening arrangements can change. [Check the venue information](https://deltamuseum.org/experiences/exhibits/aircraft-on-view-outside/outside-exhibits/boeing-747-400) before visiting.

**Sources checked: 3 October 2026.** Dates are as specific as the confirming source; an undated milestone is labelled as a period rather than given an invented day.

### Related

- [All individual aircraft histories](/boeing-747-aircraft-registry.html)
- [The 747-400](/boeing_747_family/747-400.php)

## RA001: The First Boeing 747

*URL: https://www.boeing-747.com/registry/n7470.html*

N7470, also known as RA001 and City of Everett, is the first Boeing 747 built. Boeing retained it for development work rather than handing it over to an airline. Its surviving test configuration makes it a record of how the jumbo was developed.

N7470, also known as RA001 and City of Everett, is the first Boeing 747 built. Boeing retained it for development work rather than handing it over to an airline. Its surviving test configuration makes it a record of how the jumbo was developed.

### Aircraft identity

- **Registration:** N7470
- **Variant:** Boeing 747-121
- **Serial number:** 20235
- **Operator history:** Boeing flight test
- **Record status:** Preserved

### Aircraft history

| Date or period | Milestone |
|---|---|
| 9 February 1969 | First flight of the 747 prototype from Paine Field. [Source](https://www.museumofflight.org/Exhibits-and-Events/Aircraft/boeing-747-121) |
| After certification | Continued as a Boeing development testbed, including work on later engine programmes. [Source](https://www.museumofflight.org/Exhibits-and-Events/Aircraft/boeing-747-121) |
| 6 April 1995 | Final flight and donation to The Museum of Flight, after about 5,300 flight hours. [Source](https://www.museumofflight.org/Exhibits-and-Events/Aircraft/boeing-747-121) |
| 2013 - 2014 | Extensive restoration returned the aircraft to its early flight-test appearance. [Source](https://www.museumofflight.org/Exhibits-and-Events/Aircraft/boeing-747-121) |

### What makes this aircraft important

The aircraft is in the museum's Aviation Pavilion. The museum also links to virtual views of the cockpit, lounge and lower bay. Those tours are a useful way to compare a prototype's working interior with the airline cabins that followed.

### Status and access

The official collection or venue record lists this aircraft at **The Museum of Flight, Seattle**. Interior access, tours and opening arrangements can change. [Check the venue information](https://www.museumofflight.org/Exhibits-and-Events/Aircraft/boeing-747-121) before visiting.

**Sources checked: 3 October 2026.** Dates are as specific as the confirming source; an undated milestone is labelled as a period rather than given an invented day.

### Related

- [All individual aircraft histories](/boeing-747-aircraft-registry.html)
- [The 747-100](/boeing_747_family/747-100.php)

## N747GE: From Pan Am to Engine Testbed

*URL: https://www.boeing-747.com/registry/n747ge.html*

This early 747-121 lived two very different working lives: carrying Pan Am passengers, then carrying experimental engines for General Electric. The testbed's oversized engine installations show why a strong, adaptable four-engine airframe was valuable long after its first airline career.

This early 747-121 lived two very different working lives: carrying Pan Am passengers, then carrying experimental engines for General Electric. The testbed's oversized engine installations show why a strong, adaptable four-engine airframe was valuable long after its first airline career.

### Aircraft identity

- **Registration:** N747GE
- **Variant:** Boeing 747-121
- **Serial number:** 19651
- **Former registrations:** N744PA
- **Operator history:** Pan Am 1970 - 1991; General Electric flying testbed from 1992
- **Record status:** Preserved

### Aircraft history

| Date or period | Milestone |
|---|---|
| 21 March 1970 | Delivered to Pan Am; flew as Clipper Star of the Union. [Source](https://pimaair.org/museum-aircraft/boeing-747-121/) |
| 1982 | Renamed Clipper Ocean Spray. [Source](https://pimaair.org/museum-aircraft/boeing-747-121/) |
| March 1992 | Acquired by General Electric for flying engine tests. [Source](https://pimaair.org/museum-aircraft/boeing-747-121/) |
| Engine-test career | Tested engines including GE90, GEnx, CFM56, CF34, GP7200, LEAP and Passport. [Source](https://www.ge.com/news/reports/time-flies-ges-original-flying-testbed-jets-off-history) |
| November 2018 | Donated to Pima Air & Space Museum. [Source](https://pimaair.org/museum-aircraft/boeing-747-121/) |

### What makes this aircraft important

The museum confirms serial number 19651. Published institutional accounts disagree about its production-line position, so this profile does not use that number to identify the aircraft.

### Status and access

The official collection or venue record lists this aircraft at **Pima Air & Space Museum, Tucson**. Interior access, tours and opening arrangements can change. [Check the venue information](https://pimaair.org/museum-aircraft/boeing-747-121/) before visiting.

**Sources checked: 3 October 2026.** Dates are as specific as the confirming source; an undated milestone is labelled as a period rather than given an invented day.

### Related

- [All individual aircraft histories](/boeing-747-aircraft-registry.html)
- [747 engine testbeds](/special_boeing_747s/engine-testbeds.html)

## N747NA: SOFIA and Clipper Lindbergh

*URL: https://www.boeing-747.com/registry/n747na.html*

SOFIA was a passenger 747SP transformed into a flying infrared observatory. Its large telescope door and specialised cabin were the final stage in an airframe history that began with Pan Am and continued with United Airlines.

SOFIA was a passenger 747SP transformed into a flying infrared observatory. Its large telescope door and specialised cabin were the final stage in an airframe history that began with Pan Am and continued with United Airlines.

### Aircraft identity

- **Registration:** N747NA
- **Variant:** Boeing 747SP-21
- **Serial number:** 21441
- **Former registrations:** N536PA, N145UA
- **Operator history:** Pan Am 1977 - 1986; United Airlines 1986 - 1995; USRA acquisition 1997; NASA and DLR SOFIA science programme
- **Record status:** Preserved

### Aircraft history

| Date or period | Milestone |
|---|---|
| 25 April 1977 | First flight of serial number 21441, later named Clipper Lindbergh by Pan Am. [Source](https://www.nasa.gov/wp-content/uploads/2025/08/sp-4901-sofia.pdf) |
| 13 February 1986 | Purchased by United Airlines and registered N145UA. [Source](https://www.nasa.gov/wp-content/uploads/2025/08/sp-4901-sofia.pdf) |
| 27 October 1997 | Purchased by USRA for conversion into SOFIA. [Source](https://www.nasa.gov/wp-content/uploads/2025/08/sp-4901-sofia.pdf) |
| 26 April 2007 | First test flight after the observatory conversion. [Source](https://www.nasa.gov/wp-content/uploads/2025/08/sp-4901-sofia.pdf) |
| 26 May 2010 | The telescope recorded its first astronomical observations in flight. [Source](https://www.nasa.gov/wp-content/uploads/2025/08/sp-4901-sofia.pdf) |
| 29 September 2022 | Final science flight. [Source](https://blogs.nasa.gov/sofia/2022/12/) |
| 13 December 2022 | Final aircraft flight to Tucson for preservation at Pima. [Source](https://blogs.nasa.gov/sofia/2022/12/) |

### What makes this aircraft important

The final science flight and the final aircraft flight were separate events. NASA's December account identifies Davis-Monthan Air Force Base as the arrival point before preparation for museum display.

### Status and access

The official collection or venue record lists this aircraft at **Pima Air & Space Museum, Tucson**. Interior access, tours and opening arrangements can change. [Check the venue information](https://pimaair.org/open-airplane/) before visiting.

**Sources checked: 3 October 2026.** Dates are as specific as the confirming source; an undated milestone is labelled as a period rather than given an invented day.

### Related

- [All individual aircraft histories](/boeing-747-aircraft-registry.html)
- [The SOFIA observatory](/special_boeing_747s/sofia.html)

## N863GT: The Final Boeing 747

*URL: https://www.boeing-747.com/registry/n863gt.html*

N863GT is the final Boeing 747 produced, a 747-8 Freighter delivered to Atlas Air for Apex Logistics. It closed a 1,574-aircraft production run while beginning its own working cargo career.

N863GT is the final Boeing 747 produced, a 747-8 Freighter delivered to Atlas Air for Apex Logistics. It closed a 1,574-aircraft production run while beginning its own working cargo career.

### Aircraft identity

- **Registration:** N863GT
- **Variant:** Boeing 747-8F
- **Serial number:** 67150
- **Operator history:** Atlas Air, operating for Apex Logistics under the 2023 delivery agreement
- **Record status:** Fleet record

### Aircraft history

| Date or period | Milestone |
|---|---|
| January 2021 | Atlas ordered the four new 747-8Fs whose deliveries would close the line. [Source](https://www.atlasairworldwide.com/2023/01/atlas-air-takes-delivery-of-boeings-final-747-production-aircraft/) |
| 31 January 2023 | Final 747 delivery ceremony at Everett; handed over to Atlas Air. [Source](https://boeing.mediaroom.com/2023-01-31-Boeing,-Atlas-Air-Celebrate-Delivery-of-Final-747,-an-Airplane-that-Transformed-Aviation-and-Global-Air-Travel) |
| February 2023 | Atlas documented delivery to Apex Logistics and the first revenue flight to Anchorage. [Source](https://www.atlasairworldwide.com/2023/02/atlas-celebrates-the-delivery-of-the-final-747-with-customer-apex-logistics/) |
| June 2026 | FAA monitoring records list N863GT, serial number 67150, under Atlas Air. [Source](https://www.faa.gov/sites/faa.gov/files/2026-06/NAARMO_US_Commercial_RVSM_Approvals_Part_121_Section_3_0.pdf) |

### What makes this aircraft important

Its split livery carries Atlas branding on the right side and Apex Logistics on the left, with a Joe Sutter tribute near the nose. The dated FAA listing confirms an operator record; it does not establish today's location or whether the aircraft is airborne.

### Status and access

No fixed public exhibit; operator fleet record. This is a dated historical or operator record; it is not a live location service. [Read the confirming source](https://www.atlasairworldwide.com/2023/01/atlas-air-takes-delivery-of-boeings-final-747-production-aircraft/).

**Sources checked: 3 October 2026.** Dates are as specific as the confirming source; an undated milestone is labelled as a period rather than given an invented day.

### Related

- [All individual aircraft histories](/boeing-747-aircraft-registry.html)
- [The final 747 delivery](/blog/final-boeing-747-delivered-to-atlas-air.html)
- [Live 747 map](/live-boeing-747-map.html)

## N905NA: NASA's Original Shuttle Carrier

*URL: https://www.boeing-747.com/registry/n905na.html*

NASA 905 started as an American Airlines 747 before becoming the first Shuttle Carrier Aircraft. Its upper-fuselage supports, strengthened structure and extra tail fins made it capable of carrying an orbiter between distant sites.

NASA 905 started as an American Airlines 747 before becoming the first Shuttle Carrier Aircraft. Its upper-fuselage supports, strengthened structure and extra tail fins made it capable of carrying an orbiter between distant sites.

### Aircraft identity

- **Registration:** N905NA
- **Variant:** Boeing 747-123
- **Serial number:** 20107
- **Former registrations:** N9668
- **Operator history:** American Airlines 1970 - 1974; NASA 1974 - 2012
- **Record status:** Preserved

### Aircraft history

| Date or period | Milestone |
|---|---|
| 15 October 1970 | First flight, followed by American Airlines delivery on 29 October. [Source](https://spacecenter.org/mission-monday-our-shuttle-carrier-aircraft-celebrates-its-50th-birthday/) |
| July 1974 | Purchased by NASA from American Airlines. [Source](https://www.nasa.gov/wp-content/uploads/2025/01/sca-historical-narrative.pdf) |
| 1976 | Converted by Boeing into a Shuttle Carrier Aircraft. [Source](https://spacecenter.org/mission-monday-our-shuttle-carrier-aircraft-celebrates-its-50th-birthday/) |
| 1977 | Carried Enterprise for the Approach and Landing Tests. [Source](https://spacecenter.org/mission-monday-our-shuttle-carrier-aircraft-celebrates-its-50th-birthday/) |
| 2012 | Delivered retired orbiters to their museum destinations and ended its shuttle-carrying career. [Source](https://www.nasa.gov/centers-and-facilities/armstrong/nasa-armstrong-fact-sheet-shuttle-carrier-aircraft/) |
| Museum display | Preserved at Space Center Houston with the replica orbiter Independence. [Source](https://saamuseum.co.za/pdfs/SAA_Museum_List_of_preserved_and_interesting_Boeing_747_aircraft_including_the_747SP.pdf) |

### What makes this aircraft important

Independence is a replica displayed on a real Shuttle Carrier Aircraft. This combination explains how orbiters travelled on Earth after landing; it was not a system for launching a shuttle into orbit.

### Status and access

The official collection or venue record lists this aircraft at **Space Center Houston**. Interior access, tours and opening arrangements can change. [Check the venue information](https://spacecenter.org/independence/) before visiting.

**Sources checked: 3 October 2026.** Dates are as specific as the confirming source; an undated milestone is labelled as a period rather than given an invented day.

### Related

- [All individual aircraft histories](/boeing-747-aircraft-registry.html)
- [Shuttle Carrier Aircraft](/special_boeing_747s/shuttle_carrier_aircraft.php)

## N911NA: NASA's Second Shuttle Carrier

*URL: https://www.boeing-747.com/registry/n911na.html*

The second Shuttle Carrier Aircraft began as a Japan Air Lines short-range 747. NASA added it to reduce dependence on a single carrier. Despite its domestic-airliner origins, its converted performance matched NASA 905.

The second Shuttle Carrier Aircraft began as a Japan Air Lines short-range 747. NASA added it to reduce dependence on a single carrier. Despite its domestic-airliner origins, its converted performance matched NASA 905.

### Aircraft identity

- **Registration:** N911NA
- **Variant:** Boeing 747SR-46
- **Serial number:** 20781
- **Former registrations:** JA8117, N747BL
- **Operator history:** Japan Air Lines 1973 - 1988; Boeing conversion for NASA 1988 - 1990; NASA shuttle carrier 1990 - 2012
- **Record status:** Preserved

### Aircraft history

| Date or period | Milestone |
|---|---|
| 1973 | Built for Japan Air Lines as a short-range 747. [Source](https://www.nasa.gov/centers-and-facilities/armstrong/nasa-armstrong-fact-sheet-shuttle-carrier-aircraft/) |
| April 1988 | Acquired for NASA by Boeing; conversion work began. [Source](https://www.nasa.gov/wp-content/uploads/2025/01/sca-historical-narrative.pdf) |
| 20 November 1990 | Delivered to NASA in completed Shuttle Carrier Aircraft configuration. [Source](https://www.nasa.gov/centers-and-facilities/armstrong/nasa-armstrong-fact-sheet-shuttle-carrier-aircraft/) |
| May 1991 | First orbiter delivery: the new Endeavour to Kennedy Space Center. [Source](https://www.nasa.gov/wp-content/uploads/2025/01/sca-historical-narrative.pdf) |
| 8 February 2012 | Final flight to Palmdale and retirement. [Source](https://www.nasa.gov/centers-and-facilities/armstrong/nasa-armstrong-fact-sheet-shuttle-carrier-aircraft/) |
| Preservation | Placed on public display at Joe Davies Heritage Airpark under a NASA loan. [Source](https://www.nasa.gov/centers-and-facilities/armstrong/nasa-armstrong-fact-sheet-shuttle-carrier-aircraft/) |

### What makes this aircraft important

The former JAL registration was JA8117, not JA8817. Acquisition, registration changes and delivery after conversion are distinct milestones; the completed shuttle carrier did not arrive in 1988.

### Status and access

The official collection or venue record lists this aircraft at **Joe Davies Heritage Airpark, Palmdale**. Interior access, tours and opening arrangements can change. [Check the venue information](https://www.cityofpalmdaleca.gov/205/Joe-Davies-Heritage-Airpark) before visiting.

**Sources checked: 3 October 2026.** Dates are as specific as the confirming source; an undated milestone is labelled as a period rather than given an invented day.

### Related

- [All individual aircraft histories](/boeing-747-aircraft-registry.html)
- [NASA 905](/registry/n905na.html)

## PH-BFB: City of Bangkok

*URL: https://www.boeing-747.com/registry/ph-bfb.html*

City of Bangkok began as a KLM passenger 747-400 and became a landmark beside Corendon's hotel near Schiphol. Its post-airline story includes a difficult ground move and a later transformation into a large-scale artwork.

City of Bangkok began as a KLM passenger 747-400 and became a landmark beside Corendon's hotel near Schiphol. Its post-airline story includes a difficult ground move and a later transformation into a large-scale artwork.

### Aircraft identity

- **Registration:** PH-BFB
- **Variant:** Boeing 747-406
- **Serial number:** 24000
- **Operator history:** KLM from June 1989; hotel-ground display from 2019
- **Record status:** Preserved

### Aircraft history

| Date or period | Milestone |
|---|---|
| June 1989 | Began commercial flying with KLM. [Source](https://www.corendonhotels.com/blog/boeing-747-final-destination/) |
| 9 February 2019 | Crossed the A9 motorway during its transport to the hotel grounds. [Source](https://www.corendonhotels.com/nl/blog/blogpost-6-weet-je-het-nog/) |
| 2019 | Placed beside the hotel in Badhoevedorp as a permanent landmark. [Source](https://www.corendonhotels.com/blog/boeing-747-by-corendon-becomes-the-canvas-for-artist-lieuwe-van-goghs-mega-project/) |
| 2 July 2025 | Corendon announced an artwork wrap designed by Lieuwe van Gogh with employee contributions. [Source](https://www.corendonhotels.com/blog/boeing-747-by-corendon-becomes-the-canvas-for-artist-lieuwe-van-goghs-mega-project/) |

### What makes this aircraft important

Historical photographs may show KLM blue or the earlier Corendon scheme. The 2025 project changed its appearance again. The hotel's current information is the right place to check whether aircraft access or tours are offered.

### Status and access

The official collection or venue record lists this aircraft at **Corendon Village Hotel Amsterdam, Badhoevedorp**. Interior access, tours and opening arrangements can change. [Check the venue information](https://www.corendonhotels.com/blog/boeing-747-by-corendon-becomes-the-canvas-for-artist-lieuwe-van-goghs-mega-project/) before visiting.

**Sources checked: 3 October 2026.** Dates are as specific as the confirming source; an undated milestone is labelled as a period rather than given an invented day.

### Related

- [All individual aircraft histories](/boeing-747-aircraft-registry.html)
- [KLM's 747 history](/airlines/klm.html)

## PH-BUK: KLM's Louis Blériot

*URL: https://www.boeing-747.com/registry/ph-buk.html*

Louis Blériot is a KLM 747-200 Combi, with passengers forward and freight at the rear of the main deck. Its preserved cabin helps explain how the Combi differed from both a passenger-only jumbo and a dedicated freighter.

Louis Blériot is a KLM 747-200 Combi, with passengers forward and freight at the rear of the main deck. Its preserved cabin helps explain how the Combi differed from both a passenger-only jumbo and a dedicated freighter.

### Aircraft identity

- **Registration:** PH-BUK
- **Variant:** Boeing 747-206B
- **Serial number:** 21549
- **Operator history:** KLM from 1978; airline flying ended in November 2003
- **Record status:** Preserved

### Aircraft history

| Date or period | Milestone |
|---|---|
| 1978 | Built and delivered to KLM. [Source](https://www.ruudleeuw.com/phbuk-15dec04.htm) |
| KLM service | Operated as a Combi with a main-deck cargo section behind the passenger cabin. [Source](https://www.aviodrome.nl/en/discover/what-to-do/collection/boeing-747) |
| November 2003 | Finished its flying career after more than 100,000 flight hours. [Source](https://www.aviodrome.nl/en/discover/what-to-do/collection/boeing-747) |
| 15 - 18 December 2004 | Transported in sections for preservation; the dated eyewitness record shows the fuselage being loaded onto a ship. [Source](https://www.ruudleeuw.com/phbuk-15dec04.htm) |

### What makes this aircraft important

The museum identifies PH-BUK and its Combi layout; the SAA Museum's preserved-airframe list confirms serial number 21549. Its long upper deck reflects modification of the classic airframe.

### Status and access

The official collection or venue record lists this aircraft at **Aviodrome, Lelystad, Netherlands**. Interior access, tours and opening arrangements can change. [Check the venue information](https://www.aviodrome.nl/en/discover/what-to-do/collection/boeing-747) before visiting.

**Sources checked: 3 October 2026.** Dates are as specific as the confirming source; an undated milestone is labelled as a period rather than given an invented day.

### Related

- [All individual aircraft histories](/boeing-747-aircraft-registry.html)
- [The 747-200 Combi](/boeing_747_family/747-200m.php)

## VH-OJA: City of Canberra

*URL: https://www.boeing-747.com/registry/vh-oja.html*

City of Canberra was Qantas's first 747-400 and the twelfth 747-400 built. It links the type's new long-range capability with the later effort to preserve an Australian aviation landmark.

City of Canberra was Qantas's first 747-400 and the twelfth 747-400 built. It links the type's new long-range capability with the later effort to preserve an Australian aviation landmark.

### Aircraft identity

- **Registration:** VH-OJA
- **Variant:** Boeing 747-438
- **Serial number:** 24354
- **Operator history:** Qantas 1989 - 2015
- **Record status:** Preserved

### Aircraft history

| Date or period | Milestone |
|---|---|
| 11 August 1989 | Accepted by Qantas and named City of Canberra. [Source](https://hars.org.au/display/boeing-747-438-vh-oja-city-of-canberra/) |
| August 1989 | Flew London to Sydney nonstop in 20 hours 9 minutes, carrying just 23 passengers and crew. [Source](https://hars.org.au/display/boeing-747-438-vh-oja-city-of-canberra/) |
| 1989 - 2015 | Served Qantas for more than 25 years. [Source](https://hars.org.au/display/boeing-747-438-vh-oja-city-of-canberra/) |
| 8 March 2015 | Made the short final flight from Sydney to Illawarra and was donated to HARS. [Source](https://hars.org.au/display/boeing-747-438-vh-oja-city-of-canberra/) |

### What makes this aircraft important

The record flight used a small load and special high-density fuel. It should not be read as the range of a normally loaded scheduled flight. HARS offers several aircraft experiences; use its current booking information to confirm access.

### Status and access

The official collection or venue record lists this aircraft at **HARS Aviation Museum, Illawarra, Australia**. Interior access, tours and opening arrangements can change. [Check the venue information](https://hars.org.au/display/boeing-747-438-vh-oja-city-of-canberra/) before visiting.

**Sources checked: 3 October 2026.** Dates are as specific as the confirming source; an undated milestone is labelled as a period rather than given an invented day.

### Related

- [All individual aircraft histories](/boeing-747-aircraft-registry.html)
- [747 records and firsts](/features/records-and-firsts.html)

## ZS-SAN: Lebombo

*URL: https://www.boeing-747.com/registry/zs-san.html*

Lebombo is South African Airways' preserved 747-244B. Its history includes the airline's first jumbo service and the memorable flypast over the 1995 Rugby World Cup final.

Lebombo is South African Airways' preserved 747-244B. Its history includes the airline's first jumbo service and the memorable flypast over the 1995 Rugby World Cup final.

### Aircraft identity

- **Registration:** ZS-SAN
- **Variant:** Boeing 747-244B
- **Serial number:** 20239
- **Operator history:** South African Airways; last airline service 24 November 2003
- **Record status:** Preserved

### Aircraft history

| Date or period | Milestone |
|---|---|
| 22 October 1971 | Delivered to South African Airways. [Source](https://saamuseum.co.za/history/History_of_The_South_African_Airways_Museum_Society_webpage.htm) |
| 10 December 1971 | Operated SAA's first 747 service, Johannesburg - Luanda - London. [Source](https://saamuseum.co.za/history/History_of_The_South_African_Airways_Museum_Society_webpage.htm) |
| 24 June 1995 | Flew over Ellis Park for the Rugby World Cup final. [Source](https://saamuseum.co.za/our-aircraft/) |
| 24 November 2003 | Last SAA service, Lagos to Johannesburg. [Source](https://saamuseum.co.za/history/History_of_The_South_African_Airways_Museum_Society_webpage.htm) |
| 5 March 2004 | Landed at Rand Airport for museum preservation. [Source](https://saamuseum.co.za/history/History_of_The_South_African_Airways_Museum_Society_webpage.htm) |

### What makes this aircraft important

The aircraft remains a museum exhibit at Germiston. Confirm tour arrangements with the SAA Museum before visiting.

### Status and access

The official collection or venue record lists this aircraft at **South African Airways Museum Society, Germiston**. Interior access, tours and opening arrangements can change. [Check the venue information](https://saamuseum.co.za/day-trips/) before visiting.

**Sources checked: 3 October 2026.** Dates are as specific as the confirming source; an undated milestone is labelled as a period rather than given an invented day.

### Related

- [All individual aircraft histories](/boeing-747-aircraft-registry.html)
- [South African Airways](/airlines/south-african-airways.html)

## ZS-SPC: Maluti

*URL: https://www.boeing-747.com/registry/zs-spc.html*

Maluti shows the shortened 747SP, built for long routes. Its history includes service for South African Airways and a decade leased to Air Mauritius under another registration.

Maluti shows the shortened 747SP, built for long routes. Its history includes service for South African Airways and a decade leased to Air Mauritius under another registration.

### Aircraft identity

- **Registration:** ZS-SPC
- **Variant:** Boeing 747SP-44
- **Serial number:** 21134
- **Former registrations:** N8297V, 3B-NAG
- **Operator history:** South African Airways; Air Mauritius lease 1984 - 1994 as 3B-NAG; later Avia service; Air Namibia lease March - October 1999; returned to SAA
- **Record status:** Preserved

### Aircraft history

| Date or period | Milestone |
|---|---|
| 4 June 1976 | First flight under Boeing registration N8297V. [Source](https://saamuseum.co.za/history/History_of_The_South_African_Airways_Museum_Society_webpage.htm) |
| 11 June 1976 | Handed over to SAA; the delivery flight followed on 17 - 18 June. [Source](https://saamuseum.co.za/history/History_of_The_South_African_Airways_Museum_Society_webpage.htm) |
| 1984 - 1994 | Leased to Air Mauritius as 3B-NAG. [Source](https://saamuseum.co.za/history/History_of_The_South_African_Airways_Museum_Society_webpage.htm) |
| March - October 1999 | Leased to Air Namibia before returning to SAA. [Source](https://saamuseum.co.za/history/History_of_The_South_African_Airways_Museum_Society_webpage.htm) |
| 24 October 2003 | Last SAA commercial service, Johannesburg - Perth - Johannesburg. [Source](https://saamuseum.co.za/history/History_of_The_South_African_Airways_Museum_Society_webpage.htm) |
| 30 September 2006 | Ferried to Rand Airport for preservation. [Source](https://saamuseum.co.za/history/History_of_The_South_African_Airways_Museum_Society_webpage.htm) |

### What makes this aircraft important

The museum also records Maluti's 1980 presidential flight and SAA's first Houston arrival in 1982. The handover date differs from the dates of its delivery journey.

### Status and access

The official collection or venue record lists this aircraft at **South African Airways Museum Society, Germiston**. Interior access, tours and opening arrangements can change. [Check the venue information](https://saamuseum.co.za/day-trips/) before visiting.

**Sources checked: 3 October 2026.** Dates are as specific as the confirming source; an undated milestone is labelled as a period rather than given an invented day.

### Related

- [All individual aircraft histories](/boeing-747-aircraft-registry.html)
- [The 747SP](/boeing_747_family/747-100sp.php)

## Seating layouts

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/*

Airline seat maps and original historical reconstructions reveal how 747 cabins changed across five decades.

Seat maps as the airlines actually configured them. A 747 is not one cabin but two, and where you sat mattered more on this aircraft than on most. This collection now includes both airline-issued maps and original, source-linked historical reconstructions.

### In this section

- [Air France](/seating_layouts_on_boeing_747/air-france-747-seat-maps.html) - the 1970 salons and the 432-seat final -400
- [Air India](/seating_layouts_on_boeing_747/air-india-747-seat-maps.html) - a 423-seat -400 with business across the whole upper deck
- [ANA](/seating_layouts_on_boeing_747/ana-747-seat-maps.html) - the 569-seat domestic -400D and the 287-seat long-haul cabin
- [BOAC and British Airways classic](/seating_layouts_on_boeing_747/boac-british-airways-classic-747.html) - the Monarch Lounge and the -200
- [British Airways 747-400](/seating_layouts_on_boeing_747/british_airways_747_seat_layouts.php) - 747-400 maps by cabin
- [Cathay Pacific](/seating_layouts_on_boeing_747/cathay-pacific-747-seat-maps.html) - the -200, -300 and the final 359-seat -400
- [El Al](/seating_layouts_on_boeing_747/el-al-747-seat-maps.html) - the 408-seat original and 403-seat refurbished -400
- [Japan Airlines](/seating_layouts_on_boeing_747/japan-airlines-747-seat-maps.html) - the 563-seat 747SR and Executive Express
- [KLM](/seating_layouts_on_boeing_747/klm-747-seat-maps.html) - the -200, the -400 and the Combi
- [Korean Air 747-8](/seating_layouts_on_boeing_747/korean-air-747-8.html) - 368 seats with Prestige on both decks
- [Lufthansa classic](/seating_layouts_on_boeing_747/lufthansa-classic-747.html) - the first European 747 and the -200
- [Lufthansa 747-8](/seating_layouts_on_boeing_747/lufthansa-747-8.html) - both decks of the last passenger 747
- [Northwest](/seating_layouts_on_boeing_747/northwest-747-seat-maps.html) - Regal Imperial Service and World Business Class
- [Pan Am](/seating_layouts_on_boeing_747/pan-am-747-seat-maps.html) - the launch cabin, Clipper Class and the 747SP
- [Qantas 747-400 and 747-400ER](/seating_layouts_on_boeing_747/qantas-747-seat-maps.html) - four documented configurations from 307 to 371 seats
- [Saudia](/seating_layouts_on_boeing_747/saudia-747-seat-maps.html) - a 424-seat -300 with the whole upper deck as economy
- [Singapore Airlines](/seating_layouts_on_boeing_747/singapore_airlines_747_seat_layout.php) - the 747-412 across both decks
- [South African Airways](/seating_layouts_on_boeing_747/south-african-airways-747-seat-maps.html) - the 331-seat "Millennium" -400
- [Thai Airways](/seating_layouts_on_boeing_747/thai-airways-747-seat-maps.html) - the 389-seat original and 374-seat final -400
- [TWA](/seating_layouts_on_boeing_747/twa-747-seat-maps.html) - the Penthouse lounge and Ambassador Class
- [United Airlines](/seating_layouts_on_boeing_747/united_airlines_747_seat_layout.php) - international layout with lie-flat first class
- [Virgin Atlantic](/seating_layouts_on_boeing_747/virgin-atlantic-747-seat-maps.html) - 394, 424 and 455-seat Upper Class layouts
- [Vintage 747 seat maps](/seating_layouts_on_boeing_747/vintage-747-seat-maps.html) - Pan Am and United in 1970, plus Qantas 747-200B and 747SP layouts from 1986

### Why the upper deck was different

Downstairs a 747 is a wide-body: usually **3-4-3 in economy**, ten abreast, with two aisles.

Upstairs it is narrow and quiet - typically **3-3 in economy or 2-2 in first**, in a cabin holding a few dozen people with its own galley and its own stair. Airlines used it for first or business class from the [747-300](/boeing_747_family/747-300.php) onwards, and frequent flyers went out of their way to be in it.

On the earliest aircraft it was not a cabin at all but a [lounge](/blog/boeing-747-classic-cabin-layouts-video.html).

### Where the seat count came from

The [747-8 Intercontinental](/boeing_747_family/747-8i.php) seats 467 in three classes. The high-density Japanese domestic variants went far further: the [747-400D](/boeing_747_family/747-400d.php) was certified for **up to 660 passengers** in a single-class layout, and the [747-300SR](/boeing_747_family/747-300sr.php) flew with more than 600.

### Related

- [747 interiors](/interiors/)
- [The 747 family](/boeing_747_family/)

## Air France 747 Seat Maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/air-france-747-seat-maps.html*

Air France's 747-400s carried 436 seats in 2007 and 432 at retirement, with economy on the upper deck and the final passenger 747 flying in 2016.

Air France was the first European airline to order the 747 and put it into
service in June 1970, and it operated **68** of the type - every generation
except the SP and the -8. Its 1970 cabin was one of the most elaborate ever
fitted: three classes divided into colour-coded "salons" (blue, mauve, red,
yellow), with a lounge and bar on the three-window upper deck.

### From lounge to First

By 1981 the airline had converted the upper deck to revenue seating, replacing
16 economy seats with **eight reclining First Class seats** at 58-inch pitch,
kept non-smoking for quiet. That joined 24 First seats in the main-deck nose at
52-inch pitch: **32 First Class seats** in all. It was an early sign of the
trade every 747 operator eventually made - the lounge was worth more sold than
given away.

### The 747-400

Air France flew the [747-400](/boeing_747_family/747-400.php) in a two-class
layout and, like a handful of carriers, put **economy on the upper deck** - 60
seats in a 3-3 arrangement rather than a premium cabin. By 2007 the aircraft
carried **436 seats**: 40 l'Espace Affaires and 396 economy. In its final years
business shrank to 36, giving a **432-seat** cabin - the same number as the
passengers aboard the airline's farewell 747 flight in January 2016.

### Fleet and fate

Air France was also the launch customer for the 747-400ERF freighter, and its
Combis (including two stretched-upper-deck -200s inherited from UTA in 1992)
flew cargo-heavy routes for decades. The last Air France 747 freighter retired
in 2014 and the last passenger 747 left the fleet in 2016. One aircraft survives:
747-128 **F-BPVJ** at the Musée de l'Air et de l'Espace near Paris.

### Related

- [KLM 747 seat maps](/seating_layouts_on_boeing_747/klm-747-seat-maps.html)
- [Lufthansa 747-8](/seating_layouts_on_boeing_747/lufthansa-747-8.html)
- [The 747-400](/boeing_747_family/747-400.php) · [Airlines](/airlines/)

## Air India Boeing 747 Seat Maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/air-india-747-seat-maps.html*

Air India's 747-400 carried 12 First, 26 Business and 385 economy seats over almost its whole career, with the upstairs cabin entirely business class, while its two 747-300M Combis put 32 business seats on the upper deck.

Air India introduced the [747-200B](/boeing_747_family/747-200b.php) in 1971
and flew a 747 line for a full half-century, retiring its
[747-400](/boeing_747_family/747-400.php)s in 2021. Its 747s opened daily
India - Europe and India - US services, and the cabin was unusual in one respect that
lasted almost to the end: the **entire upper deck was business class**.

### The 747-400: 423 seats for thirty years

The 747-400 arrived in 1993 and settled into a **423-seat** layout that changed
very little over the next three decades: **12 First Class** seats in the nose in
a 2-2 arrangement, **26 business seats** across the whole upper deck, also 2-2,
and **385 economy seats** at 3-4-3 on the main deck. First offered 82-inch
lie-flat seats; the upper-deck business seats were the slumberette type. Because
the whole bubble was business class, Air India's 747-400 had no economy seats
upstairs at all - the opposite of the [Japanese domestic
layout](/seating_layouts_on_boeing_747/japan-airlines-747-seat-maps.html).

### The 747-300M Combi

Air India also flew just two Combi 747-300Ms, which paired the same idea with a
main-deck cargo hold aft of the passenger cabin. The upper deck again carried
**32 business seats** over a single-class economy main deck. No total seat count
for these two aircraft is reliably documented, so it is not given here.

### The classic Maharaja cabin

The airline's earlier 747-200Bs, from 1971, carried First Class in the nose and
used the small upper deck as the **Maharaja Lounge** - the standard early-747
configuration, before airlines converted the bubble to revenue seating. Air
India lost three 747-200Bs in accidents, including the 1978 crash of *Emperor
Ashoka* and the 1985 bombing of *Emperor Kanishka*.

### Related

- [Air India 747 fleet history](/airlines/air-india.html)
- [Thai Airways 747 seat maps](/seating_layouts_on_boeing_747/thai-airways-747-seat-maps.html)
- [747-300M Combi](/boeing_747_family/747-300m.php) · [The 747-400](/boeing_747_family/747-400.php)

## Air New Zealand 747 Seat Maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/air-new-zealand-747-seat-maps.html*

Air New Zealand's two 747-400 cabins: the original 380-seat Business and Pacific Economy layout, and the later refit seating 379 across Business Premier, Pacific Premium Economy and Pacific Economy.

Air New Zealand operated the [747-400](/boeing_747_family/747-400.php) from
**1990 to 2014**, and the cabin changed substantially over those years - from a
spacious two-class layout to a more segmented three-class refit.

### The original 380-seat cabin

The first -400s carried **380 passengers in two classes**:

- **56 Business seats** at 50-inch pitch.
- **324 Pacific Economy seats** at 34-inch pitch.

This made the early Air New Zealand jumbo a simple, comfortable long-haul
workhorse built around the Pacific leisure market, with a big economy cabin on
both decks.

### The refit: Business Premier arrives

From the mid-2000s the -400s were progressively refurbished into a
**379-seat three-class cabin**:

- **46 Business Premier** full lie-flat suites with a visitor's seat, power,
  a 10.4-inch screen and noise-cancelling headsets.
- **39 Pacific Premium Economy** seats with more pitch and legroom.
- **294 Pacific Economy** seats.

The premium-economy class was being rolled out across the airline's Boeing
747 and 777 long-haul network - a bet on a middle cabin that has since become
standard industry-wide.

Air New Zealand retired its final 747-400 in **September 2014**, ending a
quarter-century with the type.

### Related

- [Air New Zealand 747 fleet history](/airlines/air-new-zealand.html)
- [All 747 seat layouts](/seating_layouts_on_boeing_747/)

## ANA 747 seat maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/ana-747-seat-maps.html*

ANA flew 46 Boeing 747s, seating up to 569 on its domestic 747-400D and 287 on its long-haul 747-400 before retiring the type in 2014.

All Nippon Airways was the second pillar of the Japanese 747 phenomenon. It
operated **46** of the type between 1979 and 2014 and, like JAL, used it as a
high-frequency domestic airliner as well as a long-haul flagship. The two
airlines between them made Japan the largest single market the 747 ever served.

### The domestic Super Jumbo

ANA's first [747SR](/boeing_747_family/747-100sr.php) arrived in 1979 and began
flying Tokyo - Sapporo. The initial cabin carried 455 - 456 seats, but the airline
pushed density further, reaching **528 seats** (20 premium and 508 economy) and
marketing the aircraft as the **"Super Jumbo."** ANA described it as the first
airliner capable of carrying more than 500 passengers in an all-economy
layout - a record on a scheduled domestic service.

### The 747-400D

The [747-400D](/boeing_747_family/747-400d.php) took the concept to its limit at
**569 seats**: 27 "Super Seat Premium" seats and 542 in economy, with a further
84 economy seats on the upper deck. A 2002 experiment briefly flew two aircraft
in an all-economy layout, and a later refit trimmed the premium cabin to 23
seats. The domestic 400Ds were the last 747s ANA flew, retiring on 31 March 2014.

### Long-haul: from 367 to 287

On international routes ANA went the other way. Its three-class -400 began at
367 seats, was rebuilt as the 338-seat **"Super Style"** cabin in 1999 with an
onboard bar, and finished as the **"New Style"** layout of **287 seats** - only
10 First and 182 economy, a striking contrast with the 569-seat domestic
version of the same aircraft.

### Related

- [Japan Airlines 747 seat maps](/seating_layouts_on_boeing_747/japan-airlines-747-seat-maps.html)
- [The 747-400D](/boeing_747_family/747-400d.php) · [The 747-400](/boeing_747_family/747-400.php)
- [Seating layouts](/seating_layouts_on_boeing_747/)

## BOAC and BA classic 747 seat maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/boac-british-airways-classic-747.html*

BOAC's 1971 747-100 carried 362 seats with a 16-seat Monarch Lounge upstairs; the later British Airways -200 seated 319 once the lounge was converted.

BOAC took delivery of its first 747, a -136, in April 1970 and began
London - New York service with it in April 1971. From that aircraft to the last
British Airways [747-400](/seating_layouts_on_boeing_747/british_airways_747_seat_layouts.php)
flight in 2020, the British flag carrier operated **110** 747s - one of the
largest fleets of the type in the world.

### The Monarch Lounge

The first BOAC cabin carried **362 seats**: 27 First Class in the nose, two
abreast, and 335 economy in a nine-abreast 3-4-2. Upstairs was the **Monarch
Lounge** - a 16-seat First Class space with a bartender and settees, reached by
the spiral staircase. It is the purest surviving expression of what the early
747 was for: the upper deck existed to be a room, not a cabin.

### Converting the lounge

By the late 1970s BOAC - by then British Airways - had taken the opposite view.
The lounge came out and the upper deck was seated, a programme carried out at
Boeing's Wichita facility. Capacity fell from 362 to **319** (27 First and 292
economy), and the upper deck began a second life as a premium cabin, sold as
**Super Club** and later **Club World**. British Airways' -236 of 1977, its
first Rolls-Royce RB211-powered 747, flew this layout for years; the last
classic airframe retired in October 2001.

### From the -100 to the -400

The classic British 747s were eventually joined and replaced by 57 of the
[747-400](/boeing_747_family/747-400.php), whose cabin layouts are covered on
[their own page](/seating_layouts_on_boeing_747/british_airways_747_seat_layouts.php).
None of the airline's classic 747s were preserved - the first aircraft,
G-AWNA, was scrapped in 1999 - so this record is a documentary one.

### Related

- [British Airways 747-400 seat maps](/seating_layouts_on_boeing_747/british_airways_747_seat_layouts.php)
- [KLM 747 seat maps](/seating_layouts_on_boeing_747/klm-747-seat-maps.html)
- [Vintage 747 seat maps](/seating_layouts_on_boeing_747/vintage-747-seat-maps.html)
- [The 747-100](/boeing_747_family/747-100.php) and [747-200](/boeing_747_family/747-200.php)

## Braniff 747 Seat Maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/braniff-747-seat-maps.html*

Braniff's 747SPs carried just 192 passengers in three classes with an upper-deck lounge - the most luxurious cabins the airline ever operated.

Braniff's [747SP](/boeing_747_family/747-100sp.php)s were ordered in **May 1978**, at
the dawn of US deregulation, as the airline bet on booming traffic with the
longest-range jumbo Boeing then built. The bet misfired, but the cabins were
unforgettable.

### 192 seats, three classes

Braniff took delivery of three SPs - N603BN, N604BN and N606BN - **each
configured to seat 192 passengers in three classes**:

- **First class** in the forward main-deck cabin.
- **Business class** amidships.
- **Economy class** aft.
- A **lounge in the short upper deck**, exactly as the early-747 marketing
  intended.

At 192 seats the SP was among the lowest-density jumbos ever sold - the whole
point being to give premium passengers space across an ultra-long stage. The
surviving airframe records give the 192 total but not a class-by-class
breakdown.

### The short, spectacular career

The orange 'Great Pumpkin' SPs entered service in late **1979 and 1980** on
transcontinental and Hawaii routes just as deregulation's fare war was
remaking the industry. Three years later Braniff collapsed in **May 1982**, and
the SPs were dispersed - the last airframe flying on into the 1990s.

### Related

- [Braniff 747 fleet history](/airlines/braniff-international.html)
- [The 747SP](/boeing_747_family/747-100sp.php) · [Upper-deck lounges](/interiors/upper-deck-lounges.html)
- [All 747 seat layouts](/seating_layouts_on_boeing_747/)

## British Airways 747-400 seat maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/british_airways_747_seat_layouts.php*

British Airways 747-400 seat maps across all four cabins.

British Airways operated more than **100 Boeing 747s** across the -100, -200 and -400, and was the **largest operator of the 747-400 in the world** - at its peak flying 57 of the type.

The maps below show the aircraft by cabin: First, Club World, World Traveller Plus and World Traveller.

### The Club World upper deck

BA's upper deck was configured as **Club World**, and it developed a following out of proportion to its size - a cabin of around 20 seats with its own galley, its own crew and a stair separating it from everything else.

### The end

BA retired the type in July 2020, bringing forward a retirement planned for 2024. The final two Heathrow aircraft left on **8 October 2020** - G-CIVB in the retro Negus livery and G-CIVY in standard colours. A synchronised departure from parallel runways was planned and rained off.

[Other airlines' layouts](/seating_layouts_on_boeing_747/) · [When each airline retired the 747](/airlines/)

## Cathay Pacific 747 seat maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/cathay-pacific-747-seat-maps.html*

Cathay Pacific flew the 747 for almost four decades, from a 363-seat three-class -200 in the 1980s to a 359-seat -400 retired on 1 October 2016.

Cathay Pacific's relationship with the 747 ran from the late 1970s to 2016, when
it became the last major airline to retire the passenger type. Over that time it
operated around **50** 747s, including a substantial freighter fleet, and turned
Hong Kong into one of the busiest 747 hubs in the world.

### The classic cabins

Cathay's 1980s [747-200](/boeing_747_family/747-200.php) carried **363 seats**
in three classes - 35 First, 92 Marco Polo business and 236 economy - with First
in the nose and the upper deck reserved for premium use. The
[747-300](/boeing_747_family/747-300.php), of which Cathay flew six, brought the
stretched upper deck and a two-class cabin of **415 seats**, business class
upstairs rather than a lounge.

### The 747-400

The [747-400](/boeing_747_family/747-400.php) became the backbone of Cathay's
long-haul fleet. Capacity came down over the years as premium cabins grew: from
around 387 seats in the 1990s to a final **359-seat** layout of 9 First, 46
business, 26 premium economy and 278 economy. The last passenger service,
CX543 from Tokyo Haneda, landed in Hong Kong on 1 October 2016, and the
airline's remaining -400s were retired soon after. Cathay continues to fly the
747 as a freighter.

### Related

- [Japan Airlines 747 seat maps](/seating_layouts_on_boeing_747/japan-airlines-747-seat-maps.html)
- [Thai Airways 747 seat maps](/seating_layouts_on_boeing_747/thai-airways-747-seat-maps.html)
- [The 747-400](/boeing_747_family/747-400.php) · [Airlines](/airlines/)

## Delta Air Lines 747 Seat Maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/delta-747-seat-maps.html*

Delta's 747-400 cabin seated 376 in three classes - 48 lie-flat Delta One suites split across the nose and upper deck, 42 Comfort+ seats and 286 in the main cabin.

Delta flew the 747 in two widely separated eras, and the second one produced the
cabin most people remember. After the airline's five
[747-100s](/boeing_747_family/747-100.php) proved too large for its 1970s
network and were returned to Boeing, Delta stayed away from the jumbo for three
decades - until the **2008 merger with Northwest Airlines** brought sixteen
[747-400s](/boeing_747_family/747-400.php) into the fleet.

### One cabin, 376 seats

The inherited aircraft were refurbished into a three-class cabin seating **376**:

- **48 Delta One** lie-flat suites - **34 in the nose** on the main deck and
  **14 on the upper deck** - with 82-inch flat beds.
- **42 Comfort+** seats in a five-row block with extra pitch.
- **286 Main Cabin** seats at 3-4-3.

The split between nose and upper deck matters: Delta's most premium seats were on
both decks, and the upper-deck 2-2 cabin was the quietest space on the aircraft.
The 3-4-3 main cabin was the standard 747-400 economy arrangement, ten abreast.

### The end of the line

Delta retired its 747-400s in **December 2017**, the **last US airline to do so**,
after the type had been steadily displaced by twin-engined aircraft on the same
routes. Some final flying continued into January 2018 as farewell charters.

The airline preserves **Ship 6301**, the first 747-400 ever built, at the Delta
Flight Museum in Atlanta - the same airframe that launched the variant now sitting
as its American memorial.

### Related

- [Delta Air Lines 747 fleet history](/airlines/delta-air-lines.html)
- [Northwest Airlines 747 seat maps](/seating_layouts_on_boeing_747/northwest-747-seat-maps.html)
- [United Airlines 747 layouts](/seating_layouts_on_boeing_747/united_airlines_747_seat_layout.php) · [Seating layouts](/seating_layouts_on_boeing_747/)

## El Al Boeing 747 Seat Maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/el-al-747-seat-maps.html*

El Al's 747-400 cabins are documented twice: an original 408-seat layout with 52 business seats and a later refurbishment seating 403 in four classes, with business class across the upper deck in both.

El Al was one of the earliest 747 operators in the Middle East, and its jumbos
became identified with the one route geography forced on the airline: **Tel Aviv
to New York nonstop**, flown across the Mediterranean and the Atlantic with no
friendly diversion airfield along much of the way. The 747 had the legs for it,
and El Al configured the type as a premium-heavy long-haul aircraft.

### The original 408-seat cabin

The 747-400 arrived in 1994, and the original cabin carried **408 seats**: a
small **8-seat First Class** cabin in the nose with 100-inch full-flat seats,
**52 business seats** split between six rows on the upper deck (2-2) and the main
deck (2-3-2), and **348 economy** seats at 3-4-3. Business class upstairs was the
prized position, as on most 747-400s.

### The refurbished cabin

A later refurbishment reworked the aircraft into four classes while cutting the
total to **403 seats**. First stayed at **8** in the nose and business moved to
**47** seats on the main deck plus the upper deck, but the change was the new
**Premium Economy** cabin - marketed as **Seat PLUS** - with **34 seats** in rows
21 - 25. Economy settled at **314 seats** at 3-4-3. A handful of ex-Singapore
Airlines 747-412s, acquired from 2008, flew a 12-seat First variant instead, and
published counts for those frames conflict with their own class breakdowns, so no
single total is reliable.

### The classic 747-200

The airline's 747-200Bs, from 1971, followed the early pattern: First Class in the
nose and a lounge or sleeper area in the small upper deck. The Israel Airline
Museum records that roughly 400 seats were configured for the nonstop Tel Aviv - New
York missions, but no exact classic seat plan is known. **26** 747s of all marks
served El Al; the last passenger 747 was retired in November 2019.

### Related

- [El Al 747 fleet history](/airlines/el-al.html)
- [The 747-200](/boeing_747_family/747-200.php) · [The 747-400](/boeing_747_family/747-400.php)
- [Upper-deck cabins compared](/seating_layouts_on_boeing_747/)

## Japan Airlines 747 seat maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/japan-airlines-747-seat-maps.html*

JAL was the largest 747 operator, flying 112 aircraft from 1970 to 2011, and configured its domestic variants for 563 and 568 seats.

Japan Airlines was the largest Boeing 747 operator in the world, flying **112**
of the type between 1970 and 2011, and the one that pushed the 747 furthest down
the path of pure mass transport. Its domestic cabins are the densest ever built
for the aircraft.

### The domestic 747SR

Japan's domestic trunk routes - Tokyo to Sapporo, Fukuoka and Okinawa - were
short, extremely busy and high-cycle, so Boeing built the [747SR](/boeing_747_family/747-100sr.php)
specifically for JAL: a strengthened [747-100](/boeing_747_family/747-100.php)
airframe without long-range fuel capacity, able to fly many times a day. JAL's
later SR cabin carried **563 seats** - 25 premium and 538 economy, with the
upper deck seated in economy rather than kept as a lounge. That is roughly 200
more people than a standard long-haul 747 of the same generation.

### The 747-400D

The [747-400D](/boeing_747_family/747-400d.php) carried the idea into the 1990s
at **568 seats** - 24 premium and 544 economy. JAL later added an 80-seat Class J
cabin, reducing the total to 546. The domestic 747s were a Japanese phenomenon:
nowhere else did airlines fly the 747 as a high-frequency commuter aircraft, and
JAL and ANA between them moved hundreds of millions of passengers on the type.

### The Executive Express

At the other extreme were JAL's **Executive Express** 747-200s on the
Tokyo - New York route: 44 First, 128 business and only 114 economy seats in the
standard layout. The aircraft were configured around premium trans-Pacific
business traffic rather than volume, and one 1985 service carried no economy
passengers at all.

### Fleet and fate

JAL's international -400s and its domestic 400Ds were retired together in early
2011, ending 41 years of 747 service. One ex-JAL airframe survives in the United
States: a [747-100SR](/boeing_747_family/747-100sr.php) later flown by NASA as a
Space Shuttle Carrier, now displayed at the Joe Davies Heritage Airpark in
Palmdale, California.

### Related

- [ANA 747 seat maps](/seating_layouts_on_boeing_747/ana-747-seat-maps.html)
- [The 747-400D](/boeing_747_family/747-400d.php) and [747SR](/boeing_747_family/747-100sr.php)
- [The 747-400](/boeing_747_family/747-400.php)

## KLM 747 Seat Maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/klm-747-seat-maps.html*

KLM's 747s ran from a 353-seat 1971 -200 through the Combi era to a two-class 408-seat -400 and a 268-seat -400M with a main-deck cargo hold.

KLM was the launch operator of the higher-weight [747-200](/boeing_747_family/747-200.php)
in 1971 and one of the last airlines in the world to fly the 747, retiring the
type in 2020. Over five decades it operated **43** of them, and its cabins were
shaped above all by the **Combi** - an idea KLM made a fleet strategy.

### 1971: the classic cabin

The first KLM 747-200 carried **353 seats**: 32 Royal Class in the nose and 321
in economy, with the upper deck kept as a lounge - the layout every airline
started with. Rather than buy [747-300s](/boeing_747_family/747-300.php) for
extra capacity, KLM from 1983 had some aircraft fitted with the **stretched
upper deck** (SUD), the 747-300's longer hump grafted onto a -200 airframe.

### The Combi years

KLM's most distinctive 747s were Combis. The **-200M** arrived in 1975, and the
idea was carried through the -300M to the **-400M**, which kept a large
main-deck cargo hold behind a bulkhead and a side cargo door while still
carrying passengers ahead of it. The final Combi layout seated **268** - 35
World Business, 36 Economy Comfort and 197 economy - the payload trade-off made
visible in the cabin.

### The 747-400

The passenger -400 flew a two-class cabin with **408 seats**: 35 World Business
across the nose and upper deck and 337 in economy. KLM never fitted a First
Class cabin to the type; the upper deck was business class in a 2-2 layout.
The airline's last passenger 747 flew Mexico City to Amsterdam on 29 March 2020,
and three Combis briefly returned to cargo work during the pandemic before the
fleet was finally withdrawn.

### Related

- [Air France 747 seat maps](/seating_layouts_on_boeing_747/air-france-747-seat-maps.html)
- [Lufthansa 747-8](/seating_layouts_on_boeing_747/lufthansa-747-8.html)
- [Combi aircraft](/special_boeing_747s/) · [The 747-400](/boeing_747_family/747-400.php)

## Korean Air 747-8 seat map

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/korean-air-747-8.html*

Korean Air's 747-8I seats 368: six First, 48 Prestige and 314 Economy, with the Prestige cabin extending onto the upper deck.

Korean Air was an early customer for the [747-8 Intercontinental](/boeing_747_family/747-8i.php)
and is one of the handful of airlines still flying scheduled passenger 747s. Its
-8I carries **368 seats**.

### The cabin

The layout concentrates the premium cabins forward. **First** is a compact
six-seat cabin in the nose, flown as the **Kosmo Suites 2.0** product.
**Prestige**, Korean Air's business class, occupies both the forward main deck
and the [upper deck](/interiors/upper-deck-lounges.html) - 26 seats below and 22
above. The balance of the aircraft is a **314-seat economy** cabin in the usual
ten-abreast arrangement.

### Upper deck or main deck?

On a 747 the upper deck is the quietest place in the aircraft: a small cabin
behind the flight deck, reached by a stair of its own, with a lower ceiling and
none of the footfall of the main deck. Airlines have used it for first, business
or lounges depending on the generation, and Korean Air puts its Prestige cabin
there as well as forward on the main deck.

### Related

- [Lufthansa 747-8](/seating_layouts_on_boeing_747/lufthansa-747-8.html) - the launch customer's layout
- [The 747-8 interior](/interiors/boeing_747-8/)
- [Other airlines' layouts](/seating_layouts_on_boeing_747/) · [The 747-8I](/boeing_747_family/747-8i.php)

## Lufthansa 747-8 seat maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/lufthansa-747-8.html*

Lufthansa 747-8 upper and lower deck seat maps.

Lufthansa launched the [747-8 Intercontinental](/boeing_747_family/747-8i.php) on **6 December 2006** and was for a long time its only airline customer - Boeing publicly reassessed the whole programme in early 2009 because of it.

It went on to take **19 aircraft**, by far the largest fleet, and is still flying them.

### Both decks

The maps here cover the upper and main decks. The upper deck is a business cabin; the main deck carries first, business, premium economy and economy.

At **467 seats in three classes**, the 747-8I's nominal capacity is 51 more than a [747-400](/boeing_747_family/747-400.php)'s - the gain from an 18 ft 3 in fuselage stretch and from moving the crew rest area upstairs. Lufthansa's own cabin is less dense than that brochure maximum: the launch layout seated **362**, and the current four-class aircraft seats **364**.

### Still flying

The confirmed scheduled passenger 747 operators are Lufthansa, Korean Air, Air China and Rossiya Airlines. Lufthansa is among them. These maps therefore describe an aircraft you can still book.

[Other airlines' layouts](/seating_layouts_on_boeing_747/) · [The 747-8 interior](/interiors/boeing_747-8/)

## Lufthansa classic 747 seat maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/lufthansa-classic-747.html*

Lufthansa flew the first European 747 service in 1970 with a 361-seat -100, later operating a 389-seat three-class 747-200, before the 747-8.

Lufthansa has flown the 747 longer than any other airline - from the first
European 747 service in 1970 to the [747-8 Intercontinental](/boeing_747_family/747-8i.php)
it still operates. Its classic-era aircraft are covered here; the current
aircraft has its [own page](/seating_layouts_on_boeing_747/lufthansa-747-8.html).

### The first European 747

Lufthansa ordered three [747-100s](/boeing_747_family/747-100.php) in 1966 and
flew the first European 747 service, Frankfurt - New York, on 26 April 1970. The
cabin carried about **361 seats** - 28 First and 333 economy - with the
upper-deck lounge of the early generation. Only three -100s were built for the
airline; by 1979 they had been sold to Braniff and the fleet had moved to the
-200. One of them, D-ABYB, was lost at Nairobi in 1974 in the first fatal
accident involving a 747.

### The -200 era

Lufthansa was the launch customer for the [747-200](/boeing_747_family/747-200.php)
and for the 747-200F freighter. The passenger -200 flew a **three-class** cabin
in the late 1970s - 8 First, 51 business and 330 economy, or **389 seats** in
the documented D-ABYP configuration. Unlike the later -400, the classic -200
kept its upper deck as a lounge rather than a ticketed class. Lufthansa also
operated -200M Combis and several -200F freighters, and skipped the
[747-300](/boeing_747_family/747-300.php) entirely, moving from the -200 to the
-400 in 1989.

### Fleet and fate

Lufthansa's passenger -200s were retired by 2002; no classic -100 or -200 was
preserved. The airline's displayed jumbo is a later -400, D-ABTH, at the Technik
Museum in Speyer, and its flying 747s today are the [747-8](/boeing_747_family/747-8i.php).

### Related

- [Lufthansa 747-8 seat maps](/seating_layouts_on_boeing_747/lufthansa-747-8.html)
- [KLM 747 seat maps](/seating_layouts_on_boeing_747/klm-747-seat-maps.html)
- [Air France 747 seat maps](/seating_layouts_on_boeing_747/air-france-747-seat-maps.html)

## Northwest 747 Seat Maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/northwest-747-seat-maps.html*

Northwest configured its classic 747s for 400 seats in First, Executive and coach, and its 747-400s for 403 with World Business Class on both decks.

Northwest Orient was the first US airline to fly the 747 on a domestic route -
Minneapolis/St Paul to New York on 22 June 1970 - and over four decades it
operated **62** of the type, more than any other US carrier.

### Regal Imperial Service

The airline's long-haul product in the 1980s was branded **Regal Imperial
Service**. Its [747-100](/boeing_747_family/747-100.php) and
[747-200](/boeing_747_family/747-200.php) cabins carried **400 seats**: 18 First
Class sleeper seats in the nose, 48 Executive Class seats and 334 in coach.
Executive Class was unusual in being split between a private **upper-deck**
cabin and an eight-across main-deck section - the brochure sold the upstairs as
the quieter, more private place to sit.

### The 747-400

Northwest was the **launch customer for the [747-400](/boeing_747_family/747-400.php)**
and the first airline to fly it, on 9 February 1989. Its later two-class layout
carried **403 seats**: 65 in **World Business Class** - 24 of them upstairs -
and 338 in economy. First Class had gone from the type entirely. In the 2000s
the airline retrofitted the business cabin with seats that reclined almost flat.

### Fleet and fate

Northwest flew 12 -100s, 24 -200s (passenger and freighter), around a dozen
-200 freighters and 16 -400s. The freighters flew to the end of 2009. The
-400s passed to Delta in the 2008 merger and were retired in 2018. Northwest's
N661US, the first 747-400 ever built, is preserved at the Delta Flight Museum.

### Related

- [Pan Am 747 seat maps](/seating_layouts_on_boeing_747/pan-am-747-seat-maps.html)
- [TWA 747 seat maps](/seating_layouts_on_boeing_747/twa-747-seat-maps.html)
- [United Airlines 747](/seating_layouts_on_boeing_747/united_airlines_747_seat_layout.php)
- [The 747-400](/boeing_747_family/747-400.php)

## Pan Am 747 Seat Maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/pan-am-747-seat-maps.html*

Pan Am's 747 cabins evolved from a 362-seat launch layout with a free upper-deck lounge to a 412-seat final configuration, while its 747SP ended with 233.

Pan Am was the launch customer for the [747](/boeing_747_family/747-100.php) and
the airline that shaped the first cabin every other operator copied. Across 21
years the layout changed almost completely - from a low-density flagship with a
free upstairs lounge to a high-density aircraft flying out its final years.

### 1970: the lounge era

The original cabin carried **362 passengers**: 58 First Class seats and 304 in
economy, nine abreast. What made it unlike anything before was the upstairs: the
short upper deck held a **16-seat lounge** with a wet bar, open to First Class
passengers, at the top of the **spiral staircase**. It was a social space rather
than a ticketed cabin, and it is the reason the 747's "hump" is remembered as a
luxury feature rather than a structural one. The [vintage seat-map
page](/seating_layouts_on_boeing_747/vintage-747-seat-maps.html) reproduces the
period diagram.

Pan Am briefly went further, running an upper-deck **restaurant** - "Dining in
the Sky" - with roast beef carved at the table. It lasted about two years and was
the only such use of a 747 upper deck by any airline.

### 1980s: Clipper Class and density

The oil shocks made unsold floor area indefensible. First Class shrank, the upper
deck became a sold **Clipper Class** business cabin, and economy was pushed to
ten abreast in places. By the **final 1987 - 91 layout** the aircraft carried **412
seats**: 21 First, 44 Clipper and 347 economy - a 50-seat increase on the launch
cabin, achieved almost entirely at the front of the aircraft.

### The 747SP

Pan Am was the launch customer for the short-fuselage [747SP](/boeing_747_family/747-100sp.php),
which it bought for nonstop New York - Tokyo services. Its cabin was the opposite
of a standard 747: a large premium section and a small economy cabin. The late
SP layout carried **233 seats** - 47 First, 100 Clipper and just 86 economy.

### Fleet and fate

Pan Am operated **65 Boeing 747s** in total: 44 of the -100, 10 of the -200 and
11 of the SP. The airline entered 747 service on 22 January 1970 and its last 747
left New York in May 1992. Several ex-Pan Am airframes survive in museums and as
hospitality exhibits. For the wider fleet story, see [the airlines
section](/airlines/).

### Related

- [Vintage 747 seat maps](/seating_layouts_on_boeing_747/vintage-747-seat-maps.html) - the 1970 diagrams
- [Qantas 747 seat maps](/seating_layouts_on_boeing_747/qantas-747-seat-maps.html)
- [The 747-100](/boeing_747_family/747-100.php) and [747SP](/boeing_747_family/747-100sp.php)

## Qantas Boeing 747 Seat Maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/qantas-747-seat-maps.html*

Four Qantas 747-400 and 747-400ER configurations show how the airline traded First Class and cabin density over the aircraft's later career.

Qantas operated the Boeing 747 for almost half a century, and the seat map changed repeatedly. The comparison covers four later 747-400 and 747-400ER configurations, followed by two complete airline-issued maps with every seat row and both decks visible.

### Qantas 747 configurations compared

| Total | First | Business | Premium Economy | Economy | Character |
|---:|---:|---:|---:|---:|---|
| 307 | 14 | 66 | 40 | 187 | Most premium space |
| 353 | 14 | 52 | 32 | 255 | Four-class layout |
| 364 | - | 58 | 36 | 270 | Refitted three-class layout |
| 371 | - | 56 | 40 | 275 | Highest late-fleet capacity |

The gap between the 307-seat and 371-seat versions is **64 passengers** even though both belonged to the 747-400/400ER family. That is why a useful historical seat map must identify the airline, era and configuration - not just the aircraft model.

### What the full maps show

The two full maps show individual seat letters and row numbers, cabin boundaries, galleys, toilets, bassinets, exits and accessible facilities. They cover the documented **364-seat** and **353-seat** layouts.

The 307- and 371-seat configurations remain in the comparison table because Qantas fleet records verify their class totals, but a matching primary-source row map has not been reproduced here.

For much earlier cabins, see the [vintage 747 seat-map archive](/seating_layouts_on_boeing_747/vintage-747-seat-maps.html), including Qantas 747-200B and 747SP layouts from 1986.

## SAS 747 Seat Maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/sas-747-seat-maps.html*

SAS fitted its 'Viking' 747-200Bs with just 353 seats and a first-class lounge on the upper deck, while the Combis flew freight-centred transatlantic routes with 209 - 281 seats.

SAS ordered its [747-200B](/boeing_747_family/747-200.php)s as much for image as
for capacity. The first two, christened 'Huge Viking' and 'Ivar Viking', began
Copenhagen - New York service in **1971** - and with only **353 seats**, the
densest Scandinavian jumbo still felt half empty.

### Comfort over capacity

SAS deliberately left seats out:

- **353 seats** across first and economy, with generous pitch for the era.
- An **upper-deck first-class lounge** - a cocktail-and-conversation space
  rather than revenue seating, up the spiral staircase.
- The 'Viking' nickname and the fleet's clever economics: the first two were
  bought partly so SAS could keep its image as a first-rank long-haul carrier.

### The Combis

From **1977** the same routes were increasingly flown by three
**747-283B/SCD Combis** with **209 - 281 seats**, making money on up to eight
pallets of transatlantic freight. Third 'Huge Viking' airframes rounded out the
fleet in 1981 - one of them, fittingly, the **500th 747 built**.

By **1987 - 1988** the jumbos were gone from the SAS fleet, sold or leased to
carriers that could fill them.

### Related

- [SAS 747 fleet history](/airlines/sas.html)
- [The 747-200](/boeing_747_family/747-200.php) · [Upper-deck lounges](/interiors/upper-deck-lounges.html)
- [All 747 seat layouts](/seating_layouts_on_boeing_747/)

## Saudia Boeing 747 Seat Maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/saudia-747-seat-maps.html*

Saudia's 747-300 is documented at 424 seats with 66 of them in economy on the entire upper deck, while its second-hand 747-400s carried about 32 business and 402 economy seats.

Saudia, the flag carrier of Saudi Arabia, flew jumbos from 1979 and was unusual
among airlines in how it used the 747's upper deck. Where most operators put
first or business class upstairs, Saudia put **economy** there - the bubble
became a quiet, low-density cabin rather than a premium one, while First Class
stayed in the nose.

### The 747-300

The airline's [747-300](/boeing_747_family/747-300.php) is documented at **424
seats**, with **66 economy seats** across the entire upper deck in a 3-3 layout,
marketed as "Guest" class, and the main deck configured at 3-4-3. First Class
remained in the nose, with its fixed bench-style centre section, right up to
retirement - the last -300s left the fleet between 2011 and 2013.

### The 747-400

Saudia's 747-400s were largely acquired **second-hand and on lease**, including
ex-Singapore Airlines 747-412s and Air Atlanta Icelandic frames, so there was
never a single definitive cabin. The best-documented layout carried about **32
business seats on the upper deck** and **402 economy seats** below, for 434 in
two classes. Because the fleet was not uniform and the sources disagree on
First Class, this page gives the two-class version rather than a speculative
figure.

### The classics and the cargo fleet

Saudia was among the few airlines to buy the **747-100B** - a strengthened
-100 - and its 747-100s stayed in service until 2010. Its 747-200 freighters and,
more recently, 747-8Fs kept the type in the fleet long after the passenger
aircraft had gone, making Saudia one of the last airlines still flying new 747s
of any kind.

### Related

- [Saudia 747 fleet history](/airlines/saudia.html)
- [The 747-100B](/boeing_747_family/747-100b.php) · [The 747-300](/boeing_747_family/747-300.php)
- [Air India 747 seat maps](/seating_layouts_on_boeing_747/air-india-747-seat-maps.html)

## Singapore Airlines 747-412 seat map

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/singapore_airlines_747_seat_layout.php*

Singapore Airlines Boeing 747-412 seat map.

Singapore Airlines took **93 Boeing 747s**, the third-largest total of any airline after Japan Airlines and British Airways.

The map covers a **747-412** - the customer code 12 identifies Singapore Airlines, in the same way 436 identifies British Airways and 430 Lufthansa. Boeing assigned each customer a two-character code that formed part of the model number of every aircraft it bought, so a "747-412" is a 747-400 built for Singapore.

Those codes outlive the airlines that earned them: an aircraft sold on keeps the designation of its original customer for life.

Singapore retired its passenger 747s in **2012**, replacing them with 777s and A380s.

[Other airlines' layouts](/seating_layouts_on_boeing_747/) · [The 747-400](/boeing_747_family/747-400.php)

## South African Airways 747 Seat Maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/south-african-airways-747-seat-maps.html*

The SAA 747-400 that emerged from the 2002 "Millennium" retrofit seated 331 in three classes, with 11 First Class pods in the nose and 285 economy seats split between the main and upper decks.

South African Airways was the first airline outside the United States to order
the [747SP](/boeing_747_family/747-100sp.php), and it flew jumbos from 1971 until
the last [747-400](/boeing_747_family/747-400.php) was retired in 2010. Its
most-documented cabin is the one produced by the 2002 **"Millennium"** retrofit,
which reworked the airline's eight -400s in one programme.

### The "Millennium" 747-400

The refitted aircraft carried **331 seats** in three classes: **11 First Class**
pods in the nose, **35 business class** seats in a 2-3-2 layout, and **285
economy** seats. The economy figure was split between the main deck, at 3-4-3,
and the upper deck, at 3-3 with extra pitch - the bubble made a genuinely better
seat than the main cabin, which is why SAA put economy, not a lounge, up there.

### Before the retrofit

The pre-2002 first-class cabins were not uniform. South African Airways flew
-400s that were new-build and -400s acquired second-hand (including
El Al-type and ex-Swissair examples), and their First Class cabins differed -
some 12-seat sleepers, some 14-seat non-sleepers, and later a pod layout. The
history is easier to follow through the aircraft than a single seat plan.

### The classic jumbos

The airline's earlier [747-200s](/boeing_747_family/747-200.php) and
[747-300s](/boeing_747_family/747-300.php) carried First Class in the nose with a
lounge in the small upper deck, in the pattern set by the earliest 747s. Two SAA
jumbos survive in museums: the 747-200B **ZS-SAN *Lebombo*** and the 747SP
**ZS-SPC *Maluti***, both preserved by the SAA Museum Society.

### Related

- [South African Airways 747 fleet history](/airlines/south-african-airways.html)
- [The 747SP](/boeing_747_family/747-100sp.php)
- [KLM 747 seat maps](/seating_layouts_on_boeing_747/klm-747-seat-maps.html) · [Seating layouts](/seating_layouts_on_boeing_747/)

## Swissair 747 Seat Maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/swissair-747-seat-maps.html*

Swissair's 747-300s put first class on the brand-new extended upper deck and seated up to 396, with the -300M Combis trading rear main-deck seats for freight.

Swissair was the **launch customer for the [747-300](/boeing_747_family/747-300.php)**,
taking delivery of its first stretched-upper-deck jumbo in March 1983. The whole
point of the purchase was the cabin: the -300's upper deck ran 23 ft 4 in
further aft, and Swissair filled it with **first class**.

### 396 seats and an upper-deck first cabin

Swissair's -300s and the three **-300M Combis** seated up to **396 passengers**:

- **First class** on the extended upper deck, reached by the new straight
  staircase that replaced the early 747's spiral.
- **Business and economy** across the main deck.
- In the Combis, a **main-deck freight compartment** replaced rear passenger
  seats on routes where cargo earnings were strong.

Published sources record the 396-seat fleet capacity but not a per-class
breakdown, so the class sections above are described rather than counted.

Operationally the type was effective enough, but Swissair's 747s were always
outmatched by twin-engined competitors on the thin Swiss long-haul network. The
last 747 left the fleet in **2000**, ending Swissair's jumbo era and, soon
after, the airline itself.

### Related

- [Swissair 747 fleet history](/airlines/swissair.html)
- [The 747-300's extended upper deck](/boeing_747_family/747-300.php)
- [All 747 seat layouts](/seating_layouts_on_boeing_747/)

## Thai Airways 747 seat maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/thai-airways-747-seat-maps.html*

Thai Airways flew 26 Boeing 747s, with its 747-400s ending at 374 seats before retirement in 2024.

Thai Airways International operated **26** Boeing 747s over roughly 36 years -
five -200B, two -300 and 18 passenger -400s plus two freighters - making it one
of the type's longest-standing operators in Southeast Asia. Its aircraft flew
the airline's flagship long-haul routes to Europe and Australia, and its
distinctive livery made it a fixture at the region's airports.

### The 747-400

Thai's [747-400](/boeing_747_family/747-400.php) entered service around 1990 in
a three-class cabin of **389 seats** - 14 Royal First, 50 Royal Silk and 325
economy - with the upper deck given to business class in a 2-2 layout. In 2011
the airline refurbished the type, fitting full-flat Royal First seats and new
Royal Silk seats and reducing the total to **375**. A second batch followed in
2012 with the First cabin cut to 9 seats and a final total of **374**.

### The classic 747s

Thai's earlier [747-200](/boeing_747_family/747-200.php) and
[747-300](/boeing_747_family/747-300.php) aircraft carried the usual premium
arrangements of their generation, but no reliable published seat counts survive
for those sub-fleets, so they are not reconstructed here.

### Fleet and fate

Thai's 747-400s were progressively retired from 2012, and the fleet was stored
from March 2020. The airline held a formal retirement ceremony for the type in
April 2024, ending more than four decades of 747 service. At least one airframe
has been preserved in Thailand as a ground exhibit.

### Related

- [Cathay Pacific 747 seat maps](/seating_layouts_on_boeing_747/cathay-pacific-747-seat-maps.html)
- [Japan Airlines 747 seat maps](/seating_layouts_on_boeing_747/japan-airlines-747-seat-maps.html)
- [The 747-400](/boeing_747_family/747-400.php) · [Airlines](/airlines/)

## TWA 747 Seat Maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/twa-747-seat-maps.html*

TWA's 747 cabins ran from a 346-seat 1970 layout with a Penthouse lounge to a 432-seat Ambassador Class configuration in the 1980s.

TWA was the second airline to fly the 747 and the first to fly it on a US
transcontinental route, on 25 February 1970. It operated **37** of the type in
total across a quarter-century, and its cabins traced the whole arc of 747
comfort - from the lounge era to the business-class era.

### 1970: the Penthouse

The launch cabin carried **346 passengers**: 58 First Class and 284 economy,
nine abreast. The upper deck was a First Class lounge TWA called the
**Penthouse**, reached by the spiral staircase. Economy seats were pitched two
inches wider than TWA's previous generation, and the cabin was colour-zoned to
match boarding passes.

### 1980s: Ambassador Class

By the early 1980s the front cabin had been cut from 58 to **21 sleeper seats**,
and economy was pushed to ten abreast. In October 1982 TWA launched **Ambassador
Class** - first-class-width seats pitched in a six-abreast 2-2-2 arrangement,
with part of the cabin upstairs. That layout carried **432 seats**, the densest
of TWA's 747 career.

### The 747SP

TWA's three [747SPs](/boeing_747_family/747-100sp.php) were unusual: it was the
only airline to specify the optional **upper-deck emergency exit**, which let it
seat 12 First Class sleepers upstairs. The delivery cabin held **290 seats** -
31 First and 259 economy. The aircraft were bought for New York - Middle East
nonstops that were never flown as planned, and two later went to American for
Dallas - Tokyo.

### Fleet and fate

TWA flew roughly **25 - 27 of the -100**, seven -200B and three SP. Nine early
-100s were sold to the Imperial Iranian Air Force in 1975 to raise cash. TWA's
last 747, an original 1970 airframe, was retired in 1998. No TWA-liveried 747
survives; the airline lost 747-100 N93119 in the 1996 crash of [TWA Flight
800](/accidents_with_boeing_747s/twa-800.html).

### Related

- [Pan Am 747 seat maps](/seating_layouts_on_boeing_747/pan-am-747-seat-maps.html)
- [Vintage 747 seat maps](/seating_layouts_on_boeing_747/vintage-747-seat-maps.html)
- [The 747-100](/boeing_747_family/747-100.php) and [747SP](/boeing_747_family/747-100sp.php)

## United Airlines 747-400 seat map

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/united_airlines_747_seat_layout.php*

United Airlines flew its 747-400 with 14 First, 73 Business and 260 Economy seats.

United Airlines took **68 Boeing 747s** and flew the type for 47 years.

The maps here show the international layout, a key to the symbols used, and the lie-flat first class bed.

### The last US passenger 747 flights

United flew its final 747 service on **7 November 2017**, from San Francisco to Honolulu - deliberately re-flying the route its first 747 had operated in July 1970. Tickets sold out in 90 minutes.

Delta operated the last scheduled 747 revenue flight by any US passenger airline six weeks later, Seoul to Detroit on 19 December 2017.

No US airline has carried passengers on a 747 since. [American freight operators](/airlines/), by contrast, fly more 747s than anyone - Atlas Air has the largest fleet in the world.

[Other airlines' layouts](/seating_layouts_on_boeing_747/) · [When each airline retired the 747](/airlines/)

## Vintage Boeing 747 Seat Maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/vintage-747-seat-maps.html*

Six period cabin maps show how early 747s evolved from lounge-equipped flagships into high-capacity long-haul aircraft.

The first 747 seat maps looked less like today's booking screens and more like plans for a flying hotel. The six original period maps below show the individual seats, cabin divisions and upper-deck spaces airlines actually published.

### What the period maps show

The Pan Am and United cutaways come from 1970 launch-era publications. The four Qantas maps come from its August 1986 **Passenger Product** brochure and preserve the exact low- and high-density layouts for the 747-238B and 747SP.

These are historical documents rather than seat-selection advice. Cabins changed during maintenance visits and sometimes varied within the same fleet, so the airline, aircraft subtype and date all matter.

### The biggest change: the upper deck

The earliest 747-100 upper deck was sold as a destination in its own right. Pan Am described a club-like area reached by the famous spiral staircase; United called its version the **Red Carpet Room**. Later layouts converted that valuable floor area into First or Business Class seating.

### Capacity could vary enormously

Qantas's August 1986 material is a useful snapshot because it shows multiple configurations at once. Its two 747-238B layouts held **408 and 439 passengers**, while its two shorter 747SPs held **222 and 306**. A model name is therefore only the start of identifying a historical cabin.

For later Australian layouts, compare the [Qantas 747-400 and 747-400ER seat maps](/seating_layouts_on_boeing_747/qantas-747-seat-maps.html).

## Virgin Atlantic 747 Seat Maps

*URL: https://www.boeing-747.com/seating_layouts_on_boeing_747/virgin-atlantic-747-seat-maps.html*

Virgin Atlantic's 747-400 cabins changed across three archived layouts, from a 394-seat original with 44 Upper Class suites to a 455-seat final refit with the upper deck split between Premium Economy and economy.

Virgin Atlantic began in 1984 with a single leased [747-200](/boeing_747_family/747-200.php)
and grew into one of the most recognisably branded 747 operators in the world,
flying the type for 36 years. Its 747-400s were rarely identical, and the cabin
was central to the brand: **Upper Class**, a herringbone of suites in the nose,
and the **upper deck**, which Virgin used for a mix of Upper Class, premium
economy and economy over the years.

### The original 394-seat cabin

Virgin's first 747-400s, delivered from 1994, carried **394 seats**: 44 Upper
Class suites split between the nose and the upper deck, 32 Premium Economy seats
in a 2-4-2 layout and 318 economy seats at 3-4-3. Seat pitch was generous even in
economy, part of the airline's pitch as an entertainer rather than a
high-density carrier.

### The 424-seat version

A higher-density version appeared around 2000 with **424 seats** - the Upper
Class cabin cut to 14 suites in the nose, Premium Economy doubled from 32 to 58
seats and economy raised to 352. The premium cabins were rebalanced rather than
shrunk: Virgin was one of the airlines that created the premium-economy market,
and its 747s sat more of those seats than almost any competitor.

### The final 455-seat refit

The last Virgin 747-400s, refitted from 2011, carried **455 seats**, the highest
of any version. Upper Class stayed in the nose in a 1-1 layout (rows 6 - 12), but
the upper deck became two cabins - Premium Economy in rows 20 - 24 and economy in
rows 75 - 80 - while the main-deck economy cabin ran 3-4-3. Twelve -400s served the
airline from 1994 to 2020, the last arriving at Gatwick, Manchester and Glasgow
before the type was retired in March 2020.

### Related

- [Virgin Atlantic 747 fleet history](/airlines/virgin-atlantic.html)
- [British Airways 747-400 layouts](/seating_layouts_on_boeing_747/british_airways_747_seat_layouts.php)
- [Why the upper deck was different](/seating_layouts_on_boeing_747/) · [The 747-400](/boeing_747_family/747-400.php)

## Site map

*URL: https://www.boeing-747.com/site_map.php*

A complete, automatically generated index of every page on Boeing-747.com.

Everything on the site, grouped by section. This list is generated from the pages themselves each time the site is built, so it is never out of date.

If you are looking for a specific 747 variant, the [747 family index](/boeing_747_family/) is a better starting point - it carries production numbers and a short description of each one.

## Special Boeing 747s

*URL: https://www.boeing-747.com/special_boeing_747s/*

Beyond the airlines, 747s have carried presidents, space shuttles, telescopes, fire retardant, aeroplane parts and a laser.

The 747 was designed as an airliner and a freighter. What made it useful for everything else was the combination the airlines never especially wanted: an enormous fuselage, four engines, transcontinental range, and a structure strong enough to be cut about without falling apart.

That is why a type designed in the 1960s ended up carrying a Space Shuttle, a telescope, a laser, 24,000 gallons of fire retardant, entire sections of other aeroplanes, and several heads of state.

### The categories

**Heads of state.** The [VC-25A](/special_boeing_747s/boeing_vc25_air_force_one.php) has carried American presidents since 1990, and in 2026 was joined by the [VC-25B Bridge](/special_boeing_747s/vc-25b-bridge-qatar-747-8.html), a 747-8 given to the United States by Qatar. Other governments have flown their own VIP 747s.

**Command and control.** The [E-4B](/special_boeing_747s/boeing_e-4_advanced_airborn.php) is a hardened flying command post, designed to keep working when ground facilities cannot.

**Outsize cargo.** The [Dreamlifter](/special_boeing_747s/747_large_cargo_freighter_l.php) was rebuilt with a swollen fuselage and a swing tail to carry 787 assemblies - an aeroplane whose cargo is other aeroplanes.

**Science.** [SOFIA](/special_boeing_747s/sofia.html) carried an infrared telescope and flew with a hole open in the side of the fuselage.

**Space.** The [Shuttle Carrier Aircraft](/special_boeing_747s/shuttle_carrier_aircraft.php) ferried Space Shuttle orbiters across the United States on their backs.

**Firefighting.** The [Evergreen Supertanker](/special_boeing_747s/evergreen_supertanker.php) and its successor the [Global SuperTanker](/special_boeing_747s/global-supertanker.html) could drop tens of thousands of gallons of retardant in a single pass.

**Weapons.** The [YAL-1 Airborne Laser](/special_boeing_747s/yal-1_airborne_laser.php) carried a megawatt-class chemical laser intended to shoot down ballistic missiles in their boost phase.

**Heads of state, beyond Air Force One.** A dozen governments have flown the 747 as VIP transport - [Saudi Arabia, Oman, Brunei, Morocco, Qatar, Kuwait, Bahrain, Turkey, Korea and, until 2019, Japan](/special_boeing_747s/government-and-vip-747s.html).

**Engine development.** Every major engine maker has flown new engines on a [converted 747 testbed](/special_boeing_747s/engine-testbeds.html), because three known engines can bring the aircraft home.

**A tour bus.** Iron Maiden chartered a 747-400 as [Ed Force One](/special_boeing_747s/ed-force-one.html), flown by the band's own singer.

**The ones that stayed on paper.** Several never flew: the [747 AAC](/special_boeing_747s/boeing-747-aac.html) flying aircraft carrier, the [CMCA](/special_boeing_747s/747_cmca_-_cruise_missile_carrier.php) cruise missile carrier, the [KC-33A](/special_boeing_747s/boeing_kc-33a.php) tanker, the [C-33](/special_boeing_747s/boeing_c-33.php) military airlifter and the [747 ASB](/special_boeing_747s/747-asb-advanced-short-body.html).

### Why so many were conversions

Almost none of these were built as special-mission aircraft from scratch. Most began as airliners or freighters and were converted, often decades into their lives - SOFIA was a former Pan Am and United 747SP, the Shuttle Carriers were an ex-American Airlines 747-100 and an ex-Japan Air Lines 747-100SR, and the Supertankers were converted freighters.

That is a consequence of how many were built. With 1,574 airframes produced and a long service life, there was a steady supply of sound aircraft coming off airline fleets at a fraction of new cost - and enough structural margin left in them to justify serious modification.

Now that [production has ended](/blog/final-boeing-747-delivered-to-atlas-air.html), that supply is finite. Any future special-mission 747 has to come from an airframe that already exists.

## The 747 CMCA

*URL: https://www.boeing-747.com/special_boeing_747s/747_cmca_-_cruise_missile_carrier.php*

The 747 CMCA was a proposed cruise missile carrier armed with up to 72 AGM-86 missiles on rotary launchers, considered during B-1 development.

The **747 CMCA - Cruise Missile Carrier Aircraft** - was a US Air Force study to turn the 747 into a launcher for stand-off weapons, considered while the **B-1 Lancer** was in development.

### The concept

The aircraft would have carried as many as **72 AGM-86 cruise missiles** on rotary launchers inside the fuselage, firing them through doors rather than carrying them externally.

The logic is straightforward. A cruise missile flies itself to the target; the aircraft carrying it only has to reach a launch point safely. If that is all you need, a large subsonic aircraft with enormous internal volume and long range is a far cheaper way to carry weapons than a purpose-built bomber - and the 747 already existed, with a production line, an established supply chain and a large pool of trained engineers.

Later thinking has revisited exactly this idea under the label "arsenal plane".

### Why it stayed on paper

The weakness is what happens if the launch point is not safe.

A 747 cannot penetrate defended airspace. It is large, subsonic, unstealthy and unmanoeuvrable, and it depends entirely on launching from far enough away to stay outside the threat. That works against an opponent whose air defences are well mapped and short-ranged, and fails against one whose are not.

The Air Force ultimately preferred an aircraft that could do both - carry stand-off weapons *and* penetrate defences if required. That is what the B-1 was for, and the CMCA was not pursued.

### A recurring proposal

The idea has never entirely gone away. The economics that made it attractive in the 1970s - cheap volume, long range, weapons that guide themselves - still hold, and variations on a large converted airliner carrying stand-off munitions resurface periodically in defence planning.

## The Boeing Dreamlifter

*URL: https://www.boeing-747.com/special_boeing_747s/747_large_cargo_freighter_l.php*

The Dreamlifter is a 747-400 rebuilt with an enlarged fuselage and a swing tail to fly Boeing 787 assemblies between suppliers and Boeing's assembly lines.

The Dreamlifter is the aeroplane that carries other aeroplanes. It is a **747-400 rebuilt with a fuselage more than three times the volume of a standard freighter**, and it exists for one reason: to move Boeing 787 assemblies between the factories that build them and the lines that join them together.

### Why it was built

The 787 is not assembled from raw material at Everett. It arrives as very large finished sections - wings from Japan, fuselage barrels from Italy and South Carolina - and those sections have to reach the assembly line intact.

Boeing announced on **13 October 2003** that because of the time marine shipping required, air transport would become the primary method of moving 787 assemblies. Sea freight took around a month; the Dreamlifter does it in about a day.

### What was changed

The conversion is drastic. The upper fuselage was replaced with a vastly enlarged structure, giving a cargo volume of roughly 65,000 cubic feet - far beyond anything a normal freighter offers, and shaped to swallow objects that are bulky rather than heavy.

Crucially, cargo does not go in through the nose. **The entire rear fuselage swings sideways** on a hinge, and loading happens from behind using a purpose-built vehicle that is the longest cargo loader in the world.

That was the right choice for the payload: a 787 wing is a single very long object, and loading it end-on through a tail opening is far simpler than trying to manoeuvre it through a door amidships.

### Four aircraft

All four Dreamlifters are converted used 747-400 passenger aircraft rather than new-build airframes - an economical way to obtain a very large aeroplane for a specialised job.

They remain among the most active 747s flying, and they outlived 747 production itself. As long as Boeing builds the 787, the Dreamlifters have work.

## The 747 ASB

*URL: https://www.boeing-747.com/special_boeing_747s/747-asb-advanced-short-body.html*

The 747 ASB was a proposed shortened, long-range 747 announced in 1986 to counter the A340 and MD-11. Airlines were unconvinced and it was dropped.

Boeing announced the **747 ASB - Advanced Short Body - in 1986**, as a response to two aircraft then in development: the **Airbus A340** and the **McDonnell Douglas MD-11**.

### The idea

Both competitors were aimed at long, thin routes - journeys long enough to need range, but with too few passengers to fill a full-size 747. Boeing's proposal was to shorten the 747's fuselage while keeping the technology being developed for the 747-400: the new wing with winglets, the two-crew glass cockpit, and the improved engines.

The result would have been an aircraft with 747 range and systems, sized closer to its rivals.

### Why it did not happen

The ASB ran into the same arithmetic that had limited the **747SP** a decade earlier.

Shortening a 747 does not reduce its costs proportionally. The wing, the undercarriage, the four engines and much of the systems weight stay broadly the same, because they are sized for the wing and the mission rather than the cabin. Take away fuselage and you remove revenue seats while keeping most of the expense - so cost per seat rises sharply.

That was exactly why only 45 747SPs were built. Airlines could see the same problem in the ASB, and the interest Boeing needed did not materialise.

### What Boeing did instead

The effort went into the [747-400](/boeing_747_family/747-400.php), which became the best-selling 747 of all, and then into a genuinely new aircraft for that market segment: the **777**, a twin-engined widebody designed from the outset for long, thin routes.

The 777 succeeded precisely where the ASB would have struggled, because two engines and a purpose-sized airframe beat four engines and a truncated one. In hindsight the ASB's failure to launch looks less like a missed opportunity than an early signal of where the market was going.

## The Boeing C-33

*URL: https://www.boeing-747.com/special_boeing_747s/boeing_c-33.php*

The C-33 was a proposed military version of the 747-400 Freighter, intended to supplement the C-17. It was cancelled in favour of buying more C-17s.

The **C-33** was a proposed military airlifter based on the **Boeing 747-400 Freighter**, put forward in the 1990s as a cheaper way to add strategic airlift capacity alongside the **C-17 Globemaster III**.

### The argument for it

The numbers were attractive. A 747-400F could carry a large payload a long way for a lower purchase price than a C-17, and it came off an existing commercial production line with an established supply chain and worldwide maintenance support.

For moving large quantities of materiel between established bases - which is much of what strategic airlift does - it would have worked.

### The argument against it

Military airlift is not only about tonnage between airfields. It is about *where* those airfields are and what equipment they have.

The C-17 was designed to land on short, unpaved strips, close to where the cargo is needed, and to unload without ground handling equipment: its ramp lowers to the ground and vehicles drive straight off. It can also reverse under its own power.

A 747 can do none of that. It needs a long paved runway, and its main deck sits at civil freight-terminal height, so it requires loaders that must themselves be flown in. Cargo has to be palletised to civil standards rather than driven aboard.

That distinction decided it. The C-33 could have moved cargo *between* well-equipped airfields; the C-17 could move it *to the place it was needed*. Congress ultimately funded more C-17s, and the C-33 was not built.

### The capability gap it was meant to fill

The debate was never really about whether the 747 was a capable freighter - it plainly is, which is why commercial operators still fly them. It was about whether outsize strategic airlift should be optimised for cost per ton-mile or for access to austere airfields.

The US chose access, and has bought the more expensive aircraft ever since.

## The Boeing E-4B "Nightwatch"

*URL: https://www.boeing-747.com/special_boeing_747s/boeing_e-4_advanced_airborn.php*

The E-4B is a hardened 747-200B airborne command post, built to keep national command authority functioning when ground facilities are unavailable.

The **Boeing E-4**, project name **Nightwatch**, is an aircraft built for a single grim purpose: to make sure that if the places from which the United States commands its forces are destroyed, the command itself survives.

Four were built, all on **747-200B** airframes, and all four remain in service.

### What it is for

Fixed command centres have a fundamental weakness - their coordinates are known. An airborne command post does not, because it can be anywhere within a very large volume of sky and can stay there for a long time.

The E-4B is designed to carry the National Command Authority and its staff, receive intelligence, and issue orders to forces worldwide, entirely independently of ground infrastructure. It is officially the **National Airborne Operations Center (NAOC)**, and in peacetime it also serves as a flying operations centre for the Secretary of Defense on overseas travel.

### What is on board

The interior bears no resemblance to an airliner. It is arranged as a working command centre across three decks, with a briefing room, a conference area, work areas for a battle staff of dozens, and a communications section.

The communications fit is the point of the aircraft. It can reach forces across the spectrum from satellite links down to very low frequency radio - the band used to reach submerged submarines - using, among other things, a trailing wire aerial several miles long deployed in flight.

### Hardened

The E-4B is built to keep working in conditions that would disable an ordinary aircraft. Its systems are shielded against the electromagnetic pulse produced by a nuclear detonation, which would otherwise destroy unprotected electronics at considerable distance.

It can also be refuelled in flight, so its endurance is limited by crew fatigue and consumables rather than fuel.

### Recognising one

From outside, the giveaway is the large dorsal fairing immediately behind the upper deck, which houses satellite communications equipment. Otherwise it looks much like any early 747 - which is, presumably, not a disadvantage.

### Still flying

The E-4B fleet is now decades old and based at Offutt Air Force Base in Nebraska. Replacing it has been repeatedly studied, most recently under the Survivable Airborne Operations Center programme, but the four aircraft remain in service - among the oldest 747s still doing serious work anywhere in the world.

## The Boeing KC-33A

*URL: https://www.boeing-747.com/special_boeing_747s/boeing_kc-33a.php*

The KC-33A was a proposed 747 tanker and transport that lost the 1970s Advanced Cargo Transport Aircraft competition to the DC-10-30, which became the KC-10 Extender.

The **KC-33A** was Boeing's proposal to turn the 747 into an aerial refuelling tanker and heavy transport for the US Air Force, offered during the 1970s **Advanced Cargo Transport Aircraft (ACTA)** programme.

### What it offered

On paper the case was strong. The 747 could carry more fuel than anything else available, and offload more of it further from base - which is precisely what a tanker is for. It could also carry outsize cargo on the main deck, giving the Air Force a single aircraft that could refuel and airlift.

The proposal put a refuelling boom under the rear fuselage, in the conventional American arrangement.

### Why it lost

The competition was won by the **McDonnell Douglas DC-10-30**, which entered service as the **KC-10 Extender**.

The reasoning was mostly about size. The 747 offered more capability than the mission required, at a higher purchase and operating cost, and it needed longer runways and more ramp space - which restricted the airfields it could work from. The DC-10 carried enough fuel to do the job, cost less to buy and run, and fitted more places.

For a fleet purchase, "enough capability at lower cost, usable from more airfields" beat "more capability than needed, from fewer".

### Whether that was right

The judgement has been argued over ever since. Advocates of the KC-33A point out that a larger tanker offloading more fuel per sortie means fewer aircraft and fewer crews for the same effect, and that the Air Force spent the following decades wanting more tanker capacity than it had.

What is not in dispute is that the 747 never became a US tanker - though Iran operated a small number of 747 tankers, making it one of the few air forces to fly the configuration Boeing proposed.

## Boeing VC25 Air Force One

*URL: https://www.boeing-747.com/special_boeing_747s/boeing_vc25_air_force_one.php*

The Boeing VC-25A is the presidential 747. An interim 747-8, the VC-25B Bridge, entered service in 2026 ahead of Boeing's delayed VC-25B.

[Flickr photos tagged with Air Force One Boeing 747]()

The mission of the VC-25A aircraft -- Air Force One -- is to provide air transport for the president of the United States. The presidential air transport fleet consists of two specially configured Boeing 747-200B's -- tail numbers 28000 and 29000 -- with the Air Force designation VC-25A. When the president is aboard either aircraft, or any Air Force aircraft, the radio call sign is "Air Force One".

Principal differences between the VC-25A and the standard Boeing 747, other than the number of passengers carried, are the electronic and communications equipment aboard Air Force One, its interior configuration and furnishings, self-contained baggage loader, front and aft air-stairs, and the capability for inflight refueling. The VC-25A is capable of flying half way around the world without refueling and can accommodate more than 70 passengers.

Accommodations for the president include an executive suite consisting of a stateroom (with dressing room, lavatory and shower) and the president's office. A conference/dining room is also available for the president, his family and staff. Other separate accommodations are provided for guests, senior staff, Secret Service and security personnel, and the news media. Two galleys provide up to 100 meals at one sitting. Six passenger lavatories, including disabled access facilities, are provided as well as a rest area and mini-galley for the aircrew. The VC-25A also has a compartment outfitted with medical equipment and supplies for minor medical emergencies.

The first VC-25A -- tail number 28000 -- flew as "Air Force One" on Sept. 6, 1990, when it transported President George Bush to Kansas, Florida and back to Washington, D.C. A second VC-25A, tail number 29000 transported President Bill Clinton and former Presidents Carter and Bush to Israel for the funeral of Prime Minister Yitzhak Rabin. The VC-25A will usher presidential travel into the 21st century, upholding the proud tradition and distinction of being known as "Air Force One".

VC-25 aircraft are extensively modified B-747-200s with the basic airframe technology of the 1960s. The aircraft incorporates state-of-the-art avionics and communications equipment with Stage III compliant engines. Boeing is currently delivering B-747s throughout the world, so the logistics support base appears secure for the foreseeable future. With the continuing march of technology and the prestige attached to the U.S. Presidential airlift fleet, Air Force plans recommend a system review date of 2010. At this point, the aircraft will have been in service 20 years, and commercial operators will have retired their B-747-200s counterparts from front-line service.

These aircraft are flown by the presidential aircrew, maintained by the Presidential Maintenance Branch, and are assigned to Air Mobility Command's 89th Airlift Wing, Andrews Air Force Base, MD.

Air Force One is managed by Tinker Air Force Base personnel from the Contractor Logistics Support Management Directorate. Tinker has managed Air Force One since the airplanes were originally delivered back in 1990. The directorate manages Air Force One's day-to-day issues like supply and logistics support, while at the same time ensuring the aircraft are maintained to Federal Aviation Administration regulatory standards. This support also includes engineering and technical support, production management, modification management, budget management and contracting. Programmed Depot Maintenance \[PDM\] is also managed by this directorate, but the work is contracted out to Boeing's Wichita, Kan., facility. PDM is performed on one of the two Air Force One aircraft every year. To comply with a recent FAA mandate, one aircraft was updated with a new Fuel Quantity Indicating System.

Heavy maintenance, completed on that aircraft in December 2000, included installation of the Global Positioning System and Flight Management Computer System. These systems were added as part of increasing FAA mandates to help make the aircraft more efficient. The second Air Force One aircraft was compliant with the FAA mandate when it rolled out of PDM later in 2001. In the wake of the TWA Flight 800 explosion, the FAA and the National Transportation Safety Board issued an Airworthiness Directive requiring anyone who maintains a 747 install a new FQIS with safety provisions that resulted from the TWA 800 investigation.

In the early 1990s Air Force One was secretly outfitted with a directed infrared countermeasures (DIRCM) system to protect it from a missile attack. According to some reports, the plane can also eject flares to throw heat-seeking missiles off course.

### Air Force One

### Inside Air Force One

### Replacement

The two VC-25As entered service in 1990 and are now well beyond their originally planned lives. Their replacements, designated **VC-25B**, are based on the 747-8 - two airframes originally built for a customer that never took delivery, and among the last 747s produced. The conversion has run substantially over schedule and budget; delivery is now expected around mid-2028.

To bridge that delay, the United States accepted a Boeing 747-8 given by Qatar in 2025. Converted by L3Harris and designated the [VC-25B Bridge](/special_boeing_747s/vc-25b-bridge-qatar-747-8.html), it entered service as an interim Air Force One on 1 July 2026.

The three are easily confused. The **VC-25A** is the 747-200B-based pair flying since 1990; the **VC-25B** is Boeing's purpose-built 747-8 pair, still to be delivered; and the **VC-25B Bridge** is the converted Qatari aircraft now in service.

## The Boeing 747 AAC

*URL: https://www.boeing-747.com/special_boeing_747s/boeing-747-aac.html*

Boeing studied a 747 airborne aircraft carrier in the early 1970s, carrying up to ten parasite microfighters launched and recovered in flight. It was never built.

In the early 1970s Boeing revived one of aviation's most persistent bad ideas, and studied whether the 747 could work as a **flying aircraft carrier**.

### The concept

The **747 AAC** would have carried as many as **ten parasite microfighters** inside its fuselage. They would be released through a bay in the belly, fly their mission, then return and be recovered in flight by a trapeze mechanism that hauled them back inside - where they could be refuelled, rearmed and sent out again.

The attraction was reach. A carrier at sea takes days to reposition and cannot go inland at all. An airborne carrier could be anywhere in the world within hours, and could put fighters over a place with no friendly airfield and no coastline.

Boeing's study concluded the aircraft could carry the fighters, the fuel, the weapons and the crews to support them.

### Why it was never built

Recovery is the problem, and it always has been. Launching a small aircraft from a large one is manageable - gravity helps. Getting it back is not.

A pilot must fly formation with a much larger aircraft, inside its wake, and engage a mechanism precisely, in whatever weather exists. The earlier American experiments with parasite fighters - the F-9C Sparrowhawk on the airships *Akron* and *Macon*, and later the XF-85 Goblin - all foundered on the same difficulty, and several killed people.

Nor is the carrier survivable. The whole force depends on one large, unarmed, unstealthy aircraft; lose it and every fighter it launched has nowhere to land.

By the 1970s aerial refuelling had also solved much of the problem the concept addressed. A tanker can extend a conventional fighter's reach enormously without any of the risk of docking an aeroplane inside another one.

### Why it keeps coming back

The idea has never quite died, and it has returned in the drone era with rather better prospects. Programmes such as DARPA's Gremlins have tested launching and recovering uncrewed aircraft from a transport in flight - the same concept, minus the pilot whose life made the recovery problem unacceptable.

## Ed Force One - Iron Maiden's 747

*URL: https://www.boeing-747.com/special_boeing_747s/ed-force-one.html*

A Boeing 747-400, TF-AAK, chartered for Iron Maiden's 2016 Book of Souls tour and flown by the band's singer, Bruce Dickinson.

Of all the strange jobs the 747 has been given - [carrying space shuttles](/special_boeing_747s/shuttle_carrier_aircraft.php), [a telescope](/special_boeing_747s/sofia.html), [a laser](/special_boeing_747s/yal-1_airborne_laser.php) - this is the only one that involved a heavy metal band flying itself around the world.

### The aircraft

**TF-AAK**, a [Boeing 747-400](/boeing_747_family/747-400.php). It entered service with **Air France in 2003**, was acquired by **Air Atlanta Icelandic in 2015**, and was chartered to Iron Maiden for **The Book of Souls World Tour** in 2016.

The band had used Boeing 757s on the two previous tours. The 747 offered considerably more space for band and crew, greater range, and - the practical reason - a **far larger hold**, so an entire stage production could be loaded and unloaded quickly enough to keep a six-continent schedule.

### The pilot

**Bruce Dickinson**, Iron Maiden's singer, is a qualified airline pilot. He had flown the band's previous 757s, and for the 747 he **took a full type rating** on the aircraft in order to fly it.

He was Ed Force One's main pilot for the duration of the tour.

It is worth being clear about what that means. A 747 type rating is not a courtesy: it is a demanding professional qualification on a four-engined widebody with a maximum takeoff weight approaching 400 tonnes, and the aircraft was carrying his colleagues and crew across oceans.

### Why it fits here

The [747's afterlife](/features/where-the-747s-went.html) is full of second careers - freighters, testbeds, [satellite launchers](/blog/virgin-galactic-will-use-a.html), [heads of state](/special_boeing_747s/government-and-vip-747s.html). Being a band's tour bus is at the eccentric end, but it rests on the same qualities: enormous hold volume, long range, and enough airframes on the second-hand market that chartering one was possible at all.

Air Atlanta Icelandic, the operator, is itself part of that story - a charter airline that has flown 747s long after most scheduled carriers gave them up.

### Related

- [Special Boeing 747s](/special_boeing_747s/)
- [Where the 747s went](/features/where-the-747s-went.html)
- [The 747-400](/boeing_747_family/747-400.php)

## The 747 as a flying testbed

*URL: https://www.boeing-747.com/special_boeing_747s/engine-testbeds.html*

Engine makers fly new engines on converted 747s, because three known engines can bring the aircraft home if the fourth misbehaves.

Every major engine manufacturer has flown new engines on a converted 747, and the reason is arithmetic rather than sentiment.

### Why four engines

A new engine has to be flown before it can be certified, and early in a test programme it may stop without warning.

On a twin, losing the test engine means losing **half** the aircraft's thrust. On a four-engined aircraft it means losing a **quarter** - and the three remaining engines are proven units that will bring the aeroplane home. The test engine can be shut down, restarted, stalled deliberately, run to its limits and generally abused, without the aircraft ever being in danger.

That is why the flying testbed of choice has been a 747 for decades, long after airlines stopped buying them.

### What gets carried

The test engine is usually hung on the **number 2 position**, inboard on the port wing, where it is easiest to instrument and observe. Engines far larger than anything the 747 was designed for have flown there - the GE90, which is wider in diameter than a 737's fuselage, was flown on a 747 during its development.

The aircraft themselves are heavily modified: extra instrumentation, data recording, engineering stations in the cabin, and reinforced structure at the test pylon.

### Who flies them

**General Electric** has operated 747 testbeds for many years, including work on the GE90 and the [GEnx](/boeing-747-internals/engines.html) - the family the 747-8's own GEnx-2B comes from.

**Rolls-Royce** has used a 747 for Trent development.

**Pratt & Whitney** likewise flew engines on a 747, having supplied the [JT9D](/boeing-747-internals/engines.html) that powered the original aircraft.

There is a neatness to it: the [747-8](/boeing_747_family/747-8.php)'s engine was partly developed on an earlier 747, and engines for the twins that replaced the 747 were tested on 747s too.

### The fifth pod is a different thing

Do not confuse a testbed with the [fifth-pod ferry configuration](/blog/quantas-straps-an-extra.html). Every 747 has a hardpoint between the fuselage and the inboard engine for carrying a **spare engine, inert**, to an aircraft stranded without one. That engine is not running and usually has its fan removed.

A testbed engine is live, instrumented, and doing the work.

### A long afterlife

Testbeds are among the last 747s that will fly. They are low-cycle aircraft, meticulously maintained, and there is no obvious replacement - a twin cannot do the job safely, and nobody is building four-engined airliners any more.

### Related

- [Engines through the generations](/boeing-747-internals/engines.html)
- [Special Boeing 747s](/special_boeing_747s/)
- [Where the 747s went](/features/where-the-747s-went.html)

## The 747 Supertanker

*URL: https://www.boeing-747.com/special_boeing_747s/evergreen_supertanker.php*

The 747 Supertanker was the largest aerial firefighting aircraft ever flown, carrying up to 24,000 US gallons. It was retired in 2021.

The Supertanker was a Boeing 747 converted into the largest aerial firefighting aircraft ever flown - an aeroplane that could lay a line of retardant several kilometres long in one pass.

### How it worked

Conventional air tankers use gravity: doors open, the load falls out. The Supertanker used a **pressurised delivery system** instead, pushing retardant out through nozzles under pressure.

That mattered for two reasons. It let the crew control the flow rate, so a single load could be split into several separate drops or laid down at different intensities. And because the liquid was expelled rather than dropped, the aircraft could release from a **higher altitude** - safer over mountainous terrain, where low-level tanker flying is among the most dangerous work in aviation.

### The aircraft

The first conversion, by **Evergreen International Aviation**, was based on a 747-200 and rated at up to **24,000 US gallons** (94,850 litres). It was certified by the FAA and flew on fires in the United States and abroad.

After Evergreen ceased trading in 2013, the concept passed to **Global SuperTanker Services**, which converted a 747-400 named *Spirit of John Muir*. Certified in 2016, it fought fires in California, Chile, Israel and Bolivia, and became the aircraft most people picture when the Supertanker is mentioned.

### The argument about whether it was worth it

The Supertanker was never uncontroversial. Supporters pointed to the sheer volume - one aircraft delivering what would take a fleet of smaller tankers many sorties.

Critics argued that wildfire suppression rarely rewards volume alone. Very large aircraft need long runways and specialised reloading facilities, which are seldom close to a fire; they cannot work the tight, low, terrain-following patterns smaller tankers fly; and dispatching one is expensive whether or not it changes the outcome.

### Retirement

The end came for commercial reasons rather than operational ones. Global SuperTanker Services announced in **May 2021** that it was ceasing operations, citing insurance and maintenance costs compounded by pandemic disruption to charter contracts. The aircraft was **retired that October**, sold to National Airlines, and converted back into a freighter.

## The Global SuperTanker

*URL: https://www.boeing-747.com/special_boeing_747s/global-supertanker.html*

N744ST, Spirit of John Muir, carried 19,600 US gallons of retardant and fought fires on four continents before shutting down in 2021.

The [Evergreen Supertanker](/special_boeing_747s/evergreen_supertanker.php) proved a 747 could fight fires. The **Global SuperTanker** was the version that did it properly, on a modern airframe - and it is the largest firefighting aircraft ever flown.

### The aircraft

**N744ST**, tanker number **944**, a [Boeing 747-400](/boeing_747_family/747-400.php) named ***Spirit of John Muir***.

It was rated to carry up to **19,600 US gallons (74,000 litres)** of fire retardant or water - a payload no other aerial tanker has approached.

### How it came about

Global SuperTanker Services acquired most of **Evergreen's assets** when that company failed, including the intellectual property and the pressurised drop system. The plan was straightforward: take a proven firefighting installation off an ageing [747-100](/boeing_747_family/747-100.php) and put it into a far more capable and efficient 747-400.

The aircraft was **certified for firefighting by the FAA in September 2016**.

### Where it worked

It fought fires on four continents in five years:

- **Chile** and **Israel**, early in its career
- **California**, under contract to US authorities during the 2017 wildfire season
- **Bolivia**, in August 2019

The pressurised system meant it could drop at altitude and at varying flow rates, rather than simply dumping a load - laying a retardant line rather than making a single splash.

### Why it stopped

Not because it did not work. **Global SuperTanker Services ran into financial difficulty and shut down in April 2021.**

The economics of a very large air tanker are awkward: it is enormously capable on the worst days and enormously expensive on all the others, and fire agencies contract by the season rather than by the emergency. A fleet of smaller tankers flying more sorties has usually won that argument.

The aircraft was sold to **National Airlines** and converted **back to a freighter** in 2021 - still wearing its tanker paint as recently as 2025.

### What replaced it

Nothing of the same size. The large-volume tanker concept passed to **Boeing 737-derived Coulson tankers**, which carry far less but cost far less to keep on standby.

The 747 remains the largest firefighting aircraft ever to have flown, and given that [the production line closed in 2023](/blog/final-boeing-747-delivered-to-atlas-air.html) it is likely to keep that record.

### Related

- [The Evergreen Supertanker](/special_boeing_747s/evergreen_supertanker.php)
- [Special Boeing 747s](/special_boeing_747s/)
- [Where the 747s went](/features/where-the-747s-went.html)

## The head-of-state 747s

*URL: https://www.boeing-747.com/special_boeing_747s/government-and-vip-747s.html*

A dozen governments have flown 747s as head-of-state transport, and several still do - the market that kept the passenger 747-8 alive.

The [VC-25A](/special_boeing_747s/boeing_vc25_air_force_one.php) is the famous one, but the United States is far from the only government to fly a 747.

### Who flies them

Countries that have used the 747 as head-of-state or VIP transport include the **United States, Saudi Arabia, Oman, Brunei, Morocco, Qatar, Kuwait, Bahrain, the United Arab Emirates, Turkey, South Korea, Yemen** and, until recently, **Japan**.

A few worth drawing out:

**Oman.** The Royal Flight operates an unusually complete set - a **747-8**, a **[747-400](/boeing_747_family/747-400.php)** and a **[747SP](/boeing_747_family/747-100sp.php)**.

**Morocco.** The Moroccan Air Force VIP fleet includes both a **747-400 and a 747-8**, alongside a Royal Air Maroc aircraft dedicated to state use.

**Qatar.** The Amiri Flight took **three VIP [747-8Is](/boeing_747_family/747-8i.php)** - one of which was subsequently [given to the United States and brought into service as an interim Air Force One](/special_boeing_747s/vc-25b-bridge-qatar-747-8.html).

**Japan.** Operated two **747-400s from 1991 until March 2019**, when they were replaced by 777-300ERs - the same substitution that ended the 747 at airlines.

### Why heads of state kept buying them

Three reasons, and none of them is prestige alone.

**Floor area.** A head-of-state aircraft is an office, a conference room, a medical facility and accommodation for staff and press. Very few airframes offer that much usable space with intercontinental range.

**Range.** The [747SP](/boeing_747_family/747-100sp.php) in particular was almost purpose-made for the role - it carried far fewer passengers than a full 747 and flew further than anything else of its era, which is exactly what a small government delegation needs. Several SPs found their longest careers in this work, long after the airlines had given up on them.

**Four engines.** Not a legal requirement, but a preference that persists for aircraft carrying heads of state over oceans.

### The market that outlived the airlines

This matters more than it looks. Only **48 passenger [747-8s](/boeing_747_family/747-8i.php)** were built, and airline demand was weak almost from the start - but VIP and head-of-state customers kept ordering, because nothing else did the job.

That is why the 747's final chapter is a government one. Two 747-8s are being converted into the [VC-25B](/special_boeing_747s/vc-25b-bridge-qatar-747-8.html), and the type will still be carrying heads of state long after the last airline retires one.

### Related

- [The VC-25A, Air Force One](/special_boeing_747s/boeing_vc25_air_force_one.php)
- [The VC-25B and the Qatar 747-8](/special_boeing_747s/vc-25b-bridge-qatar-747-8.html)
- [The 747SP](/boeing_747_family/747-100sp.php)

## The Shuttle Carrier Aircraft

*URL: https://www.boeing-747.com/special_boeing_747s/shuttle_carrier_aircraft.php*

NASA's two Shuttle Carrier Aircraft were modified Boeing 747s that ferried Space Shuttle orbiters across the United States. Both were retired in 2012.

NASA used two heavily modified Boeing 747s as **Shuttle Carrier Aircraft**: **NASA 905**, a 747-100 bought from American Airlines, and **NASA 911**, a 747-100SR formerly flown by Japan Air Lines.

### Why they were needed

A Space Shuttle orbiter returned from orbit as an unpowered glider. It landed where conditions allowed - often at Edwards Air Force Base in California, when Florida weather ruled out Kennedy Space Center - and then had no way of getting home.

It could not be driven any distance, could not be shipped economically, and could not fly itself. The only practical answer was to carry it, and the only aircraft with the strength, the wing and the runway performance to do that was the 747.

### What was modified

The changes were extensive:

- **Mounting struts** on top of the fuselage, attached to reinforced structure, to carry the orbiter's weight.
- **Vertical fins on the tailplane tips.** An orbiter sitting on the back badly disturbs airflow over the tail, and those fins restore the directional stability lost as a result - the most visible modification, and the quickest way to identify an SCA in a photograph.
- **A stripped interior.** Airline furnishing was removed to save weight, leaving instrumentation and a small number of seats.
- Structural strengthening through the fuselage to carry loads it was never designed for.

Loading required a purpose-built gantry, the **mate-demate device**, which lifted the orbiter and lowered it onto the aircraft.

### What it cost to fly

Carrying an orbiter is aerodynamically brutal. Drag rises enormously, so range falls sharply - ferry flights across the United States required several refuelling stops that an unladen 747 would not need. Altitude and speed were both restricted.

### Retirement

The aircraft outlived their purpose. With the Space Shuttle programme ending in 2011, the SCAs flew their final missions in **2012**, delivering the surviving orbiters to museums - including *Discovery*, whose last flight ended with a low pass over Washington DC.

**NASA 905** is displayed at **Space Center Houston**, mated to the shuttle mock-up *Independence*, and visitors can walk through both. **NASA 911** is preserved at **Joe Davies Heritage Airpark** in Palmdale, California.

## SOFIA - the flying observatory

*URL: https://www.boeing-747.com/special_boeing_747s/sofia.html*

SOFIA carried a 2.5 m infrared telescope in a converted 747SP, observing through a door opened in flight at altitude. NASA ended the mission in September 2022.

SOFIA - the **Stratospheric Observatory for Infrared Astronomy** - was a joint project of **NASA** and the **German Aerospace Center (DLR)**, with the Universities Space Research Association managing the science. It carried a 2.5 metre reflecting telescope inside a Boeing 747SP.

### Why put a telescope in an aeroplane

Infrared astronomy has a problem: water vapour in the atmosphere absorbs most infrared light before it reaches the ground. Build the best infrared telescope in the world at sea level and it will not see much.

Space solves this, but a space telescope is enormously expensive, cannot be repaired easily, and cannot have its instruments swapped as the science moves on.

Flying is the compromise. At around **40,000 feet** an aircraft is above roughly **99 percent** of the atmosphere's water vapour - enough to open up most of the infrared spectrum - and it lands every morning, so instruments can be maintained, upgraded and exchanged.

### The open door

The engineering that makes SOFIA remarkable is the door. A large opening in the rear fuselage was **opened in flight**, exposing the telescope directly to the outside air at altitude.

That is not a trivial thing to do to a pressurised aircraft. The cavity had to be shaped so airflow across a large hole did not set up destructive buffeting or upset handling. The telescope had to be isolated from the airframe, because an aeroplane vibrates constantly and a telescope must hold its aim to a tiny fraction of a degree. And the observatory section was kept unpressurised, sealed off from the pressurised cabin where the crew and scientists worked.

### Why a 747SP

The **SP** is the short, light, long-legged member of the 747 family, built originally for ultra-long thin routes. Those same qualities - high altitude capability and long endurance - are exactly what an airborne observatory needs, since useful observing time is time spent high and steady.

The airframe itself had a long previous life, flying for Pan Am and then United before conversion.

### The end of the mission

NASA ended SOFIA on **30 September 2022**, after a final science flight the night before. The decision was contested: the observatory was expensive to operate and its scientific return was judged not to justify the cost against other projects competing for the same budget.

The aircraft made its last flight on **13 December 2022**, from Palmdale to Tucson, and is now preserved at the **Pima Air & Space Museum**.

## VC-25B Bridge: the Qatar-gifted Boeing 747-8

*URL: https://www.boeing-747.com/special_boeing_747s/vc-25b-bridge-qatar-747-8.html*

The VC-25B Bridge is a Boeing 747-8 gifted by Qatar in 2025 and converted by L3Harris as an interim Air Force One, entering service on 1 July 2026.

The **VC-25B Bridge** is a Boeing 747-8 that the government of Qatar gave to the United States in 2025, and which has flown as an interim Air Force One since July 2026. It is the first presidential aircraft the United States has not bought new, and its acquisition became the subject of a sustained constitutional argument.

### The aircraft

The airframe is a Boeing Business Jet version of the 747-8, delivered to the Qatar Amiri Flight in 2012 and used as a VIP transport by the Qatari ruling family. It was withdrawn from use in 2023 and passed through offshore ownership before the American transfer. It now carries the US registration **N7478D**.

As a BBJ it was already fitted out to a standard far beyond an airliner - a wide-body private aircraft with staterooms, offices and lounges rather than seat rows. That existing interior is part of why it was considered a plausible shortcut to a presidential aircraft.

### How it was acquired

Special envoy Steven Witkoff arranged for President Trump to tour the aircraft at Palm Beach International Airport in February 2025. Defense Secretary **Pete Hegseth formally accepted the aircraft on 21 May 2025**, on behalf of the US Air Force. Its value was widely reported at around **$400 million**, which would make it among the most valuable gifts ever accepted by the US government from a foreign state.

### Conversion

The aircraft was flown to Texas in August 2025, where **L3Harris Technologies** carried out the modification work. A presidential aircraft needs far more than a repaint: hardened communications, electromagnetic shielding, secure command-and-control equipment, and - normally - defensive countermeasures.

Flight testing was completed by May 2026. The aircraft was **unveiled at Joint Base Andrews on 19 June 2026** in a new red, white and blue livery chosen by the president, replacing the pale blue and white scheme that Raymond Loewy designed for John F. Kennedy in 1962 and which had been carried by presidential aircraft ever since.

It **entered service on 1 July 2026**, its first operational flight carrying the president to North Dakota.

### Why "Bridge"

The designation reflects its purpose. Boeing has been converting two other 747-8 airframes into purpose-built presidential aircraft - the **VC-25B** proper - under a contract signed in 2018. That programme has run years late; delivery is now expected around **mid-2028**, against an original target of 2024.

The Qatari aircraft was intended to bridge that gap, replacing the two ageing [VC-25As](/special_boeing_747s/boeing_vc25_air_force_one.php) that entered service in 1990. The three aircraft are frequently confused: the VC-25A is the current 747-200B-based pair, the VC-25B is Boeing's delayed purpose-built pair, and the VC-25B Bridge is this converted Qatari jet.

### Cost

The cost of the conversion has not been published. The Air Force said in June 2025 that it would come to **less than $400 million**. Subsequent reporting put the sum allocated at roughly **$934 million**, drawn from funds associated with the LGM-35 Sentinel nuclear modernisation programme. Members of Congress and industry analysts have estimated the true total at close to or above **$1 billion**. The contract itself is classified, so the figure cannot be independently confirmed.

### Security questions

The most substantive technical criticism is that the aircraft does not match the protection built into the VC-25A. Officials have acknowledged it lacks some defensive systems, including advanced anti-missile capabilities. Former Air Force Secretary **Frank Kendall** estimated that bringing a commercial 747-8 up to full VC-25A standard would take three to four years - considerably longer than the roughly ten months the conversion actually took.

President Trump has said the aircraft's defences would be "maxed out". What was ultimately fitted is classified.

### The legal argument

The Constitution's **Foreign Emoluments Clause** bars federal officeholders from accepting gifts from foreign states without the consent of Congress. Critics - including legal scholars and Democratic legislators - argued that accepting an aircraft of this value from Qatar without that consent violated the clause, and raised further objections to reports that the aircraft would eventually pass to the president's library foundation.

The administration's position, set out in a legal memorandum from Attorney General **Pam Bondi** and the Justice Department's Office of Legal Counsel, was that the aircraft was transferred to the US government rather than to the president personally, and that this made the arrangement permissible under both the emoluments clause and federal bribery statutes.

Two congressional measures were introduced in response - **Senate Resolution 244**, from Senator Richard Blumenthal, and **House Resolution 410**, from Representative Jamie Raskin. Both were referred to committee, where they did not advance.

In August 2026, Eric Trump said the aircraft would not go to the presidential library, which would remove one of the specific objections raised.

### Where it sits in 747 history

Whatever else is said about it, the aircraft marks something unusual in the type's history. Production of the 747 ended in January 2023, so no new presidential 747 can be built from scratch. Every future 747 in US government service - this aircraft, and Boeing's VC-25B pair - must come from an airframe that already exists. The Qatari jet is the clearest illustration of that constraint.

## The YAL-1 Airborne Laser

*URL: https://www.boeing-747.com/special_boeing_747s/yal-1_airborne_laser.php*

The Boeing YAL-1 carried a megawatt-class chemical oxygen iodine laser in a modified 747-400F. It destroyed test missiles in 2010 but was cancelled and scrapped.

The YAL-1 is the strangest thing ever fitted to a 747: a **megawatt-class chemical oxygen iodine laser (COIL)** installed inside a modified 747-400 Freighter, intended to destroy ballistic missiles while they were still climbing.

### How it was meant to work

A ballistic missile is most vulnerable during its boost phase - the first few minutes, when it is slow, bright, still climbing, and has not yet released any warheads or decoys.

The YAL-1 was designed to detect a launch with infrared sensors, track it, and hold a high-energy laser beam on the missile's skin long enough to weaken the pressurised fuselage until it failed under its own flight loads. The beam was steered through the bulbous turret in the nose.

The chemistry to generate the beam took up much of the main deck - the COIL was a set of large chemical modules occupying the space where cargo pallets would normally sit.

### It worked

On **11 February 2010**, off the California coast, the YAL-1 destroyed a boosting ballistic missile in flight. It repeated the result days later against a second target.

That is worth stating plainly, because it is often forgotten: the Airborne Laser did what it was built to do.

### Why it was cancelled anyway

The problem was never whether the physics worked. It was range.

The laser's effective reach was on the order of a couple of hundred miles, which meant the aircraft would have had to orbit close to - or inside - hostile airspace to intercept a launch. A 747 is a large, slow, unstealthy target, and putting one in that position in wartime was not realistic.

Combined with the cost of the chemical fuel and the maintenance burden of the system, that made the case unsustainable. The programme was cancelled in **December 2011** after around 16 years and roughly **$5 billion** of development.

### The end

The single YAL-1 made its last flight on **12 February 2012** to Davis-Monthan Air Force Base in Arizona. It was stored there for two years, and **scrapped in September 2014**.

## Boeing 747 specifications compared

*URL: https://www.boeing-747.com/specifications.html*

Dimensions, weights, capacity, range and engines for every 747 generation, including the shortened 747SP and the stretched 747-8.

Every 747 generation compared. Figures are for a representative build of each variant; individual aircraft varied with engine choice and customer options, and maximum weights in particular were raised over a variant's production life.

### Detailed specifications

The six later variants now have expanded specification sheets covering landing and zero-fuel weights, representative empty weight, structural payload, fuel and cargo volume. Each sheet identifies its planning configuration and Boeing manual page.

- [747-400](/boeing_747_family/747-400.php) - passenger specification sheet
- [747-400ER](/boeing_747_family/747-400er.php) - passenger specification sheet
- [747-400F](/boeing_747_family/747-400f.php) - freighter specification sheet
- [747-400ERF](/boeing_747_family/747-400erf.php) - freighter specification sheet
- [747-8I](/boeing_747_family/747-8i.php) - passenger specification sheet
- [747-8F](/boeing_747_family/747-8f.php) - freighter specification sheet

[Compare factory freighters](/747-freighter-specifications.html) for the -400F, -400ERF and -8F.

[Download the detailed specifications as CSV](/data/boeing-747-technical-specifications.csv) or [JSON](/data/boeing-747-technical-specifications.json). Downloads retain the configurations, units and source references.

### Understanding the figures

- **MTOW** is the maximum design takeoff weight; **MLW** is the maximum design landing weight.
- **MZFW** limits aircraft weight before usable fuel is added.
- **OEW** includes the aircraft and operating equipment. It changes with engines, cabins and airline equipment.
- **Structural payload** is MZFW minus the representative OEW. It is a weight limit, not a promise of payload at a particular range.
- **Cargo volume** depends on container type and layout. Bulk and container spaces are listed separately.

Metric weights and volumes in the detailed sheets are converted from pounds and cubic feet; rounding may differ slightly from Boeing's metric columns.

Passenger seats and freighter payload are compared separately below. Range figures are historical published summaries, not guarantees for the weight configurations in the detailed sheets.

### Dimensions

| | Length | Wingspan | Height | Wing area |
|---|---|---|---|---|
| [747-100](/boeing_747_family/747-100.php) | 231 ft 10 in (70.66 m) | 195 ft 8 in (59.64 m) | 63 ft 5 in (19.33 m) | 5,500 sq ft (511 m²) |
| [747SP](/boeing_747_family/747-100sp.php) | **184 ft 9 in (56.31 m)** | 195 ft 8 in (59.64 m) | 65 ft 5 in (19.94 m) | 5,500 sq ft (511 m²) |
| [747-200](/boeing_747_family/747-200.php) | 231 ft 10 in (70.66 m) | 195 ft 8 in (59.64 m) | 63 ft 5 in (19.33 m) | 5,500 sq ft (511 m²) |
| [747-300](/boeing_747_family/747-300.php) | 231 ft 10 in (70.66 m) | 195 ft 8 in (59.64 m) | 63 ft 5 in (19.33 m) | 5,500 sq ft (511 m²) |
| [747-400](/boeing_747_family/747-400.php) | 231 ft 10 in (70.66 m) | **211 ft 5 in (64.44 m)** | 63 ft 8 in (19.41 m) | 5,650 sq ft (525 m²) |
| [747-8](/boeing_747_family/747-8.php) | **250 ft 2 in (76.25 m)** | **224 ft 5 in (68.40 m)** | 63 ft 6 in (19.35 m) | 5,960 sq ft (554 m²) |

Only two variants ever changed the fuselage length: the [747SP](/boeing_747_family/747-100sp.php) had nearly 48 ft removed, and the [747-8](/boeing_747_family/747-8.php) had 18 ft 3 in added. Everything else in the family is the same length as the original.

The wingspan tells the other story. The classics all share one wing. The [747-400](/boeing_747_family/747-400.php) added 6 ft wingtip extensions and 6 ft winglets; the 747-8 replaced the wing entirely with [a new design using raked wingtips](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html).

### Weights

| | Max takeoff weight | Notes |
|---|---|---|
| 747-100 | 735,000 lb (333 t) | As first certified |
| 747-100B | 750,000 lb (340 t) | Strengthened airframe and gear |
| 747SP | 700,000 lb (318 t) | Lighter airframe, more fuel per seat |
| 747-200 | up to 833,000 lb (378 t) | |
| 747-300 | 833,000 lb (378 t) | Same weights as the -200 |
| 747-400 | 875,000 lb (396.9 t) | Empty weight 404,600 lb with PW4000s |
| 747-400ER / ERF | 910,000 lb (413 t) | The increase went to fuel |
| **747-8** | **987,000 lb (447.7 t)** | Heaviest aircraft ever built in the US |

Two figures often quoted for the 747-8 are earlier ones: **970,000 lb** was the programme design weight and **975,000 lb** the initial freighter figure. The certified weight is 987,000 lb.

The [747-8F](/boeing_747_family/747-8f.php) spent its weight increase differently from the [747-400ERF](/boeing_747_family/747-400erf.php): the ERF's went almost entirely into fuel, buying range, while the -8F's went into **zero-fuel weight**, buying payload. That single decision is why the newer aircraft carries more but flies less far.

### Capacity and performance

| | Passengers (3-class) | Range | Cruise |
|---|---|---|---|
| 747-100 | 366 | ~4,620 - 5,300 nmi | Mach 0.84 |
| 747SP | 276 | **5,830 nmi (10,800 km)** | Mach 0.86 |
| 747-200B | 366 | ~6,560 nmi | Mach 0.84 |
| 747-300 | 400 | ~6,700 nmi | Mach 0.85 |
| 747-400 | 416 | 7,285 nmi (13,490 km) | Mach 0.855 |
| [747-400D](/boeing_747_family/747-400d.php) | 568 (2-class), **660 max** | Domestic sectors only | Mach 0.855 |
| [747-8I](/boeing_747_family/747-8i.php) | 467 | 7,730 nmi (14,310 km) | Mach 0.855 |

Two rows deserve a second look. The [747SP](/boeing_747_family/747-100sp.php) carried the fewest passengers and flew the furthest of its generation - the entire point of the variant. The [747-400D](/boeing_747_family/747-400d.php) carried the most people of any 747 ever certified and had no range to speak of, because it was built for one-hour sectors in Japan.

### Freighter payload

| Variant | Representative structural payload | Planning basis |
|---|---|---|
| [747-400F](/boeing_747_family/747-400f.php) | 271,046 lb (122,944 kg) | Boeing D6-58326-1, Revision F (December 2024), p. 2-8 |
| [747-400ERF](/boeing_747_family/747-400erf.php) | 248,600 lb (112,763 kg) | Boeing D6-58326-1, Revision F (December 2024), p. 2-12 |
| [747-8F](/boeing_747_family/747-8f.php) | 292,400 lb (132,630 kg) | Boeing D6-58326-3, Revision E (January 2026), p. 2-2 |

These are structural payload examples. Range requires a specified payload, engine, cruise condition and reserve policy; see the [freighter comparison](/747-freighter-specifications.html) for the weight and volume context.

### Engines

| | Options | Thrust |
|---|---|---|
| 747-100 | Pratt & Whitney JT9D | ~46,000 - 50,000 lbf |
| 747-200 / -300 | JT9D, GE CF6, Rolls-Royce RB211 | ~46,500 - 54,750 lbf |
| 747-400 | PW4000, CF6-80C2, RB211-524G/H | 56,500 - 63,300 lbf |
| 747-8 | GE GEnx-2B67 only | 66,500 lbf |

More on all of them on the [engines page](/boeing-747-internals/engines.html), including why offering three engine choices on the -200 mattered more commercially than any technical improvement.

### Fuel

| | Capacity |
|---|---|
| 747-400, GE planning example | 57,065 US gal (216,014 L), including optional tail fuel |
| 747-400ER, GE two-tank planning option | 63,240 US gal (239,389 L); differs from Qantas aircraft |
| 747-8I | 63,034 US gal (238,609 L) on page 2-3, including tail fuel; detailed tank table gives 59,734 US gal |
| 747-8F | 59,734 US gal (226,117 L), no tail fuel tank |

The two passenger 747-8 figures are not a conversion error: they appear in different tables in the
same January 2026 Boeing revision. The [fuel system page](/boeing-747-internals/fuel-system.html)
documents the discrepancy and covers the tank layout, transfer and jettison.

### Production

| Variant | Built |
|---|---|
| 747-100 | 168 |
| 747SR (all) | 29 |
| 747-100B | 9 |
| 747SP | 45 |
| 747-200 (all) | 393 |
| 747-300 (all) | 81 |
| 747-400 (all) | 694 |
| 747-8 (all) | 155 |
| **Total** | **1,574** |

Those figures sum exactly to the 1,574 aircraft built between 1968 and [the final delivery in January 2023](/blog/final-boeing-747-delivered-to-atlas-air.html).

The same totals are available in CSV and JSON on the [Boeing 747 production data page](/boeing-747-production-data.html).

### Related

- [The 747 family](/boeing_747_family/) - every variant in detail
- [747 systems](/boeing-747-internals/) - how the aircraft works
- [The 747-8 compared to the 747-400](/everything-about-the-boeing-747-8/Boeing-747-8-compared-to-the-747-400.html)

## Browse by topic

*URL: https://www.boeing-747.com/tag-cloud.html*

A topic index built from every subject named across the site, with the pages that cover each one.

A way into the site by subject rather than by section. Each topic below lists every page that covers it.

This index is generated from the pages themselves when the site is built, so it always reflects what is actually here. If you would rather browse by section, use the [site map](/site_map.php).

## Terms of use

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Terms for using Boeing-747.com, including the Boeing trademark disclaimer, image rights and how to request a correction or takedown.

*Last updated 15 August 2026.*

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Questions about any of the above: [boeing747@0a0.info](mailto:boeing747@0a0.info).

## Boeing 747 Videos: Tests, Assembly and Flight

*URL: https://www.boeing-747.com/videos/*

A collection of Boeing 747 videos from testing, production and line service.

Boeing 747 footage worth watching, with an explanation of what you are actually looking at in each one.

### Testing and production

- **[The rejected takeoff test](boeing-747-8-being-put-through-some-tough-tests.html)** - a 747-8 at maximum weight, on fully worn brakes, with no reverse thrust. The most demanding test in the certification programme.
- **[Extreme testing](boeing-747-8-extreme-testin.html)** - wing loading to 150 percent of limit load, water ingestion, and temperature extremes.
- **[Building a 747-8](building-a-boeing-747-8.html)** - a full-length documentary on how one is made.
- **[The Intercontinental in final assembly](boeing-747-8-intercontinent-final-assembly.html)** - the last passenger 747 coming together at Everett.
- **[The GEnx-2B engine](boeing-747-8-engine-overvie.html)** - the only engine ever offered on the 747-8, and the chevrons that made it quiet.

### In service

- **[Reverse thrust on landing](awesome-demonstration-of.html)** - an EVA Air 747 at Singapore, and why the spray goes forward.
- **[Taking off in heavy rain](boeing-747-400-engine-view-.html)** - why rain does not trouble a jet engine, but does trouble the runway.
- **[Struck by lightning](boeing-747-gets-hit-by-ligh.html)** - how an airliner takes a direct strike and flies on.
- **[Car versus a 747 engine](car-vs-boeing-747-engines-top-gear-style.html)** - Top Gear, a Citroën 2CV, and a serious point about jet blast.

### When it went wrong

Two accidents, both freighters, both worth understanding rather than just watching.

- **[National Airlines Flight 102](horrific-boeing-747-crash.html)** - Bagram, 2013. Armoured vehicles broke loose on takeoff and destroyed the stabiliser jackscrew. Seven crew died.
- **[Tradewinds at Medellín](tradewinds-boeing-747-rejec.html)** - 2006. A takeoff rejected 12 knots above V1 on a wet runway. Everyone walked away.

### Elsewhere on the site

Videos are embedded throughout the rest of the site alongside the aircraft they show - including flight-deck films, Combi cargo loading, and the [special-mission 747s](/special_boeing_747s/) carrying shuttles, telescopes and a laser.

- [The 747 family, variant by variant](/boeing_747_family/)
- [Everything about the Boeing 747-8](/everything-about-the-boeing-747-8/)
- [Accidents involving the Boeing 747](/accidents_with_boeing_747s/)

## EVA Air Boeing 747-400 landing with heavy reverse thrust

*URL: https://www.boeing-747.com/videos/awesome-demonstration-of.html*

An EVA Air 747 lands at Singapore using heavy reverse thrust.

An EVA Air Boeing 747-400 lands at Singapore Changi after heavy showers. Standing water on the runway is thrown up in a wall of spray the moment the reversers deploy, and the wings visibly unload as the aircraft settles.

### What you are watching

**The spray.** Thrust reversers do not run the engines backwards. On the 747's high-bypass turbofans, blocker doors and cascade vanes redirect the *bypass* air - the cold air that goes around the core - forward and outward at an angle. That is what picks up the surface water and throws it ahead of and around the aircraft.

Because it is bypass air rather than exhaust, most of a 747's reverse thrust comes from the fan, not the hot core. It is also why reverse is far more effective at high speed than low: there is more air moving through the fan.

**The wing flex.** Watch the wings as the weight transfers onto the gear. In flight a 747's wings carry the entire aircraft and bow upward; on touchdown that load moves to the landing gear and the wings drop. The movement looks alarming and is entirely normal - a 747 wing is [tested to bend far past anything it will meet in service](/videos/boeing-747-8-extreme-testin.html).

### Why reversers matter less than you would think

Reverse thrust is not credited in the certified landing distance for most operations. Regulators require an aircraft to be able to stop on wheel brakes and spoilers alone, so the reversers are margin rather than the primary means of stopping.

What they genuinely buy is **brake wear and heat**. Brakes convert energy to heat, and a 747 arriving heavy generates a great deal of it. Using reverse takes a share of that energy out of the brakes, which matters for turnaround times - hot brakes need to cool before the next departure.

On a wet runway they buy something else again: reverse thrust works the same whether the surface is wet or dry, while braking does not.

### Related

- [Rejected takeoff - where stopping really is critical](/videos/tradewinds-boeing-747-rejec.html)
- [The 747-8's new wing](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html)
- [The 747-400](/boeing_747_family/747-400.php)

## Virgin Atlantic Boeing 747-400 taking off in heavy rain

*URL: https://www.boeing-747.com/videos/boeing-747-400-engine-view-.html*

An in-flight view of a 747-400 engine in heavy rain.

A Virgin Atlantic Boeing 747-400, G-VROM, takes off in heavy rain - spray streaming off the wing and the engines running at takeoff thrust through a downpour.

### Rain does not bother a jet engine

That is the counter-intuitive part. A high-bypass turbofan the size of a 747's ingests an enormous mass of air every second, and the water in even torrential rain is a tiny fraction of it by weight. Most of what enters is flung outward by the fan and passes down the bypass duct rather than into the core.

Engines are certified for it deliberately. Manufacturers run **water ingestion tests**, firing measured quantities of water into a running engine to prove it will keep operating - part of the same certification campaign that includes [the extreme testing regime](/videos/boeing-747-8-being-put-through-some-tough-tests.html) the airframe goes through.

Hail and volcanic ash are a different matter entirely. Water is not.

### What rain does affect

**The runway.** This is the real operational concern, and it is about stopping, not about the engines. Standing water reduces braking friction and raises the risk of aquaplaning, which is why performance calculations use different figures for wet and contaminated runways, and why crews may need a longer runway or a lower takeoff weight in rain.

It is also why a [rejected takeoff on a wet runway](/videos/tradewinds-boeing-747-rejec.html) is one of the most demanding things a crew can be asked to do.

**Visibility.** Rain heavy enough to be seen like this generally comes with reduced visibility, and often with the convective weather that produces windshear.

### What you can see on the wing

The 747-400's wing carries **six-foot wingtip extensions and six-foot winglets**, the feature that most quickly separates a -400 from the classic 747s. In rain the airflow over the wing becomes briefly visible - water streaming aft along the surface traces the flow the aerofoil is generating.

### Related

- [The 747-400](/boeing_747_family/747-400.php)
- [Reverse thrust on a wet runway](/videos/awesome-demonstration-of.html)
- [What a 747 engine does to a car](/videos/car-vs-boeing-747-engines-top-gear-style.html)

## Boeing 747-8 performs the ultimate rejected takeoff test

*URL: https://www.boeing-747.com/videos/boeing-747-8-being-put-through-some-tough-tests.html*

The 747-8's certification rejected takeoff test: maximum weight, fully worn brakes, no reverse thrust, stopped on the runway.

**A note on this page.** The clip originally embedded here used a Flash player that no longer works anywhere. It has been replaced with Boeing's own film of the 747-8's rejected takeoff test - the most demanding single test in the certification programme.

Boeing accelerates a 747-8 to just above takeoff decision speed at **maximum takeoff weight**, then rejects the takeoff and brings it to a stop.

### Why this test is brutal

The conditions are deliberately the worst that can be constructed:

- **Maximum takeoff weight** - nearly a million pounds.
- **Fully worn brakes.** Not new brakes. The test uses brakes worn to the limit at which an airline would be permitted to dispatch the aircraft.
- **No reverse thrust.** Reverse is not credited in certified stopping performance, so the test does not use it.
- **No cooling.** The aircraft must then sit for five minutes without the brakes being cooled, because in a real rejected takeoff the fire service takes time to arrive.

That last condition is the one that produces the famous images. The brakes absorb the entire kinetic energy of a 400-tonne aircraft at around 200 mph and convert it to heat. They glow. Tyres deflate through their fuse plugs, which are designed to melt and release pressure rather than let a tyre burst.

The requirement is that the aircraft stops within the runway distance, and that nothing catches fire for five minutes afterwards.

### What it proves

Every rejected takeoff decision a crew ever makes rests on this test. When a captain aborts below V1, the performance figures say the aircraft will stop - and this is where those figures come from, demonstrated on the worst day the aircraft could plausibly have.

There is a [detailed page on the 747-8 rejected takeoff test](/everything-about-the-boeing-747-8/boeing-747-8-rejected-take-off-test.php) in the reference section.

The corollary matters just as much: above V1 the aircraft is committed to fly, because the stopping distance is no longer there. [A crew that rejected 12 knots above V1](/videos/tradewinds-boeing-747-rejec.html) ran off the end of the runway.

### Related

- [More 747-8 extreme testing](/videos/boeing-747-8-extreme-testin.html)
- [The 747-8](/boeing_747_family/747-8.php)
- [Building a 747-8](/videos/building-a-boeing-747-8.html)

## The GEnx-2B engine that powers the Boeing 747-8

*URL: https://www.boeing-747.com/videos/boeing-747-8-engine-overvie.html*

A GE Aviation overview of the GEnx-2B engine used on the 747-8.

A close look at the **General Electric GEnx-2B**, the only engine ever offered on the [Boeing 747-8](/boeing_747_family/747-8.php).

### The 747-8's one engine

Every earlier 747 generation could be bought with engines from more than one manufacturer. The [747-200](/boeing_747_family/747-200.php) offered Pratt & Whitney, General Electric and Rolls-Royce, and that choice is a large part of why it outsold the [747-100](/boeing_747_family/747-100.php) more than two to one - airlines could buy a 747 that shared a powerplant with the rest of the fleet.

The 747-8 offered one. An exclusivity agreement between GE and Boeing meant no other manufacturer's engine could be fitted for at least ten years.

### What it is derived from

The GEnx-2B is a variant of the GEnx that powers the Boeing 787. Two changes were made for the 747:

- **A smaller fan diameter**, so it fits under a 747 wing on a four-engined aircraft rather than a large twin.
- **Bleed air.** The 787 is a more-electric aircraft and its GEnx does not supply bleed air. The 747-8 uses conventional pneumatic systems, so the -2B was adapted to provide it.

### The chevrons

The most visible feature is the **serrated trailing edge** of the nacelle. Those chevrons smooth the mixing between the exhaust flow and the surrounding air, where much of the low-frequency noise of a jet is generated.

Combined with the [new wing](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html), they give the 747-8 a noise footprint about **30 percent smaller** than the 747-400's - enough that Boeing said the aircraft could operate at London Heathrow around the clock, where most types face a night curfew.

The idea did not start here. It was developed for the [747-400XQLR](/boeing_747_family/747-400xqlr-quiet-long-range.html), a quiet long-range 747 that was never built but whose noise work went straight into the 747-8.

### What it delivers

The GEnx-2B burns about **16 percent less fuel per seat** than the engines on the 747-400, and around 11 percent less than those on the Airbus A380. Four of them produce 66,500 lb of thrust each.

### Related

- [Engines optimised for the 747-8](/everything-about-the-boeing-747-8/engines-optimized-for-the-7.html)
- [The 747-8 wing](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html)
- [What that thrust does to a car](/videos/car-vs-boeing-747-engines-top-gear-style.html)

## Boeing 747-8 undergoes extreme testing

*URL: https://www.boeing-747.com/videos/boeing-747-8-extreme-testin.html*

Extreme structural and systems testing of the Boeing 747-8.

Boeing's own film of the testing a 747-8 goes through before it is allowed to carry anybody - structural loading, systems trials and the environmental extremes the aircraft must survive.

### The tests that look impossible

**Wing load testing.** A complete airframe is fixed in a rig and the wings are pulled upward until they reach **150 percent of the highest load the aircraft is expected to meet in service** - the "limit load" being the worst case in a lifetime of flying, and the requirement being to hold one and a half times that without failing.

On the [747-400](/boeing_747_family/747-400.php) test article the wingtips deflected upward by more than 24 feet. Nothing in service ever comes close, which is why [the wing flex you see on a landing](/videos/awesome-demonstration-of.html) is nothing to worry about.

**Water ingestion.** Water is fired into running engines and along the runway to prove the aircraft can take off through standing water - the certification behind [a departure in heavy rain](/videos/boeing-747-400-engine-view-.html).

**Temperature extremes.** Aircraft are cold-soaked and heat-soaked at the limits of where they will operate, then required to start and fly.

**Fatigue testing.** A separate airframe is cycled through pressurisation and load cycles representing several lifetimes of flying, to find where cracks start before an aircraft in service does.

### Why the 747-8 needed all of it again

The 747-8 was a derivative, but not a light one. It had an **entirely new wing** - thicker and deeper, with the aerodynamics recalculated and different bending moments - plus a stretched fuselage and new engines.

A new wing is most of the expense of a new aircraft precisely because of this: the structure, its aerodynamics and every system running through it have to be certified from scratch. That cost is why the far more ambitious [747-500X and -600X](/boeing_747_family/boeing-747-500x-600x-and-700X.html) were never launched.

### Related

- [The rejected takeoff test](/videos/boeing-747-8-being-put-through-some-tough-tests.html)
- [The 747-8's new wing](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html)
- [Building a 747-8](/videos/building-a-boeing-747-8.html)

## Making the first commercial Boeing 747-8 Intercontinental

*URL: https://www.boeing-747.com/videos/boeing-747-8-intercontinent-final-assembly.html*

The first 747-8 Intercontinental being assembled at Everett - the final passenger version of the 747.

**A note on this page.** The clip originally embedded here used a Flash player that no longer works. It has been replaced with footage of the same subject: the first [747-8 Intercontinental](/boeing_747_family/747-8i.php) coming together at Everett.

The 747-8 Intercontinental moves through final assembly - the last passenger 747 Boeing would ever build.

### Where this happens

The **Everett factory** in Washington State was built for the 747 and is the largest building in the world by volume. It exists because in 1966 Boeing had agreed to build an aircraft that would not fit in any building it owned, and had roughly two years to produce both the aeroplane and somewhere to make it.

The 747 line ran there for 54 years.

### What final assembly involves

Major sections arrive already built - fuselage barrels, the wings, the empennage - and are joined in position. The wing-to-body join is the critical operation: the wing carries the whole aircraft in flight, and the structure that transfers that load into the fuselage is the most heavily worked part of the airframe.

Systems, interiors and engines follow, and the aircraft rolls out for ground and flight testing before delivery.

### Why the Intercontinental mattered, and why so few were built

The -8I was **18 ft 3 in longer** than the [747-400](/boeing_747_family/747-400.php), seating 467 in three classes, with a sweeping curved staircase to the upper deck and a 787-derived cabin.

It was also designed to fit existing 747 gates at the same height as a -400 - so an airline could introduce it without any airport spending a penny on the ground. That was a pointed contrast with the A380, which required stands and jetways to be rebuilt.

It did not save the aircraft. **48 Intercontinentals were built**, against **107 [Freighters](/boeing_747_family/747-8f.php)**. Airlines had moved to twin-engined aircraft, and the last passenger 747 rolled out of this building years before the freighter line closed.

The [final 747 of all was delivered on 31 January 2023](/blog/final-boeing-747-delivered-to-atlas-air.html) - aircraft number 1,574.

### Related

- [Building a 747-8, full documentary](/videos/building-a-boeing-747-8.html)
- [The 747-8 Intercontinental](/boeing_747_family/747-8i.php)
- [Everything about the 747-8](/everything-about-the-boeing-747-8/)

## A Boeing 747 struck by lightning on takeoff

*URL: https://www.boeing-747.com/videos/boeing-747-gets-hit-by-ligh.html*

An ANA Boeing 747-200 struck by lightning during takeoff.

An All Nippon Airways Boeing 747-200 is struck by lightning shortly after takeoff, caught from the ground. The aircraft flew on.

### This happens more than you think

A commercial airliner is struck by lightning roughly **once a year** on average. Most strikes are never noticed by passengers, and many are not noticed by the crew either until the post-flight inspection finds the entry and exit marks.

Aircraft do not only get struck - they frequently *trigger* the strike themselves. A large metal object moving through a strongly charged region of cloud distorts the electric field enough to initiate a discharge that would not otherwise have happened at that moment.

### Why nothing happens

**The aircraft is a Faraday cage.** The 747's aluminium skin conducts the current around the outside of the fuselage. The charge attaches at an extremity - usually the nose or a wingtip - travels over the skin, and leaves from another extremity, typically the tail or the trailing edge of a wing.

**Static dischargers.** Those small spikes trailing from the wing and tail trailing edges bleed accumulated static charge back into the air continuously, and give the current a designed exit point.

**Fuel tanks are the real concern**, and the one that gets the most engineering attention. The wing *is* the fuel tank on a 747, so every fastener, access panel and joint in that structure is designed and tested to prevent sparking inside it. Certification requires this to be demonstrated.

**Composites changed the problem.** An aluminium aircraft conducts naturally. Carbon fibre does not conduct nearly as well, so aircraft with composite structure - including the 787, and the parts of the [747-8](/boeing_747_family/747-8.php) that use carbon fibre - have conductive mesh embedded in the skin to do the job the aluminium used to do for free.

### What does get damaged

Usually very little: small burn marks at the attachment and exit points, occasionally a damaged static discharger or a radome that needs replacing. The aircraft is inspected and, in the great majority of cases, released back to service.

### Related

- [The 747-200](/boeing_747_family/747-200.php)
- [Extreme testing of the 747-8](/videos/boeing-747-8-extreme-testin.html)
- [A 747 taking off in heavy rain](/videos/boeing-747-400-engine-view-.html)

## Building the Boeing 747-8, full documentary

*URL: https://www.boeing-747.com/videos/building-a-boeing-747-8.html*

A documentary on how the Boeing 747-8 is built.

A full-length documentary following the construction of a [Boeing 747-8](/boeing_747_family/747-8.php), from wing assembly through final join and roll-out.

### The building it is made in

The **Everett factory** exists because of this aircraft. When Boeing committed to the 747 in 1966 it had no building large enough to make one, and roughly two years to produce both. Everett is still the largest building in the world by volume.

### What makes a 747 wing hard

The wing is the part worth watching. It is not a component bolted onto an aeroplane - on a 747 it *is* the aeroplane's primary structure and its fuel tank, and it carries the entire weight of the aircraft in flight through the wing-to-body join.

The [747-8's wing was designed from scratch](/everything-about-the-boeing-747-8/Boeing-747-8-new-wing-design.html) rather than carried over from the [747-400](/boeing_747_family/747-400.php): thicker, deeper, with recalculated aerodynamics, raked wingtips instead of winglets, and a different pressure distribution and bending moment.

That is why a new wing costs roughly what a new aircraft costs - and why Boeing could not launch the [747-500X and -600X](/boeing_747_family/boeing-747-500x-600x-and-700X.html) in 1996 when the new wing alone was estimated at over $5 billion.

### The stretch

The 747-8's extra **18 ft 3 in** over the 747-400 comes from two fuselage plugs: 13 ft 4 in ahead of the wing and 5 ft behind it. Watching them go in is the clearest illustration of how a derivative aircraft is actually made - the fuselage is built in barrels, so lengthening it means adding barrels, not redesigning the tube.

Along with the [747SP](/boeing_747_family/747-100sp.php), which had nearly 48 ft *removed*, the 747-8 is one of only two 747s whose length was ever changed.

### How it ended

155 were built - 107 [Freighters](/boeing_747_family/747-8f.php) and 48 [Intercontinentals](/boeing_747_family/747-8i.php). The [last 747 left this building on 31 January 2023](/blog/final-boeing-747-delivered-to-atlas-air.html), the 1,574th built, and the line closed after 54 years.

### Related

- [The 747-8 Intercontinental in final assembly](/videos/boeing-747-8-intercontinent-final-assembly.html)
- [Extreme testing of the 747-8](/videos/boeing-747-8-extreme-testin.html)
- [Everything about the 747-8](/everything-about-the-boeing-747-8/)

## Car versus a Boeing 747 engine

*URL: https://www.boeing-747.com/videos/car-vs-boeing-747-engines-top-gear-style.html*

A Top Gear-style test of cars against Boeing 747 engine thrust.

Richard Hammond tests whether a car can survive standing behind a Boeing 747 at power. A Citroën 2CV and a Ford Mondeo volunteer. Neither wins.

### The numbers behind the stunt

Each engine on a [747-400](/boeing_747_family/747-400.php) produces around **60,000 lb of thrust**; the GEnx-2B on the [747-8](/boeing_747_family/747-8.php) produces 66,500 lb. Four of them together push roughly a quarter of a million pounds.

But thrust is not really what wrecks the cars. What matters is the **mass flow**: a high-bypass turbofan of that size moves well over a tonne of air every second, and jet blast behind an aircraft at takeoff power can exceed hurricane wind speeds for a considerable distance behind the tailpipe.

Wind force rises with the *square* of velocity, so a jet blast at twice the speed hits four times as hard. A 2CV weighs about 600 kg. It is not a fair contest.

### This is a real operational hazard

Airports take jet blast seriously enough to build infrastructure around it. **Blast fences** stand behind runup areas and at the ends of taxiways at many airports; ground crews work to marked minimum distances behind aircraft; and blast has repeatedly blown over ground vehicles, luggage carts and, at St Maarten's famous Maho Beach, people.

The [747's four engines](/everything-about-the-boeing-747-8/engines-optimized-for-the-7.html) spread that energy across a wider arc than a large twin does, but at close range that is little comfort.

### The related failure mode

Blast is thrust going backwards deliberately. [Reverse thrust](/videos/awesome-demonstration-of.html) is the same energy redirected forward - which is why a 747 landing on a wet runway throws up a wall of spray.

### Related

- [The GEnx-2B engine](/videos/boeing-747-8-engine-overvie.html)
- [Reverse thrust on landing](/videos/awesome-demonstration-of.html)
- [The 747-400](/boeing_747_family/747-400.php)

## Boeing 747 Crash at Bagram: National Airlines Flight 102

*URL: https://www.boeing-747.com/videos/horrific-boeing-747-crash.html*

National Airlines Flight 102, a Boeing 747-400BCF, crashed after takeoff from Bagram on 29 April 2013 when unrestrained cargo shifted aft. All seven crew died.

**Seven people died in this accident.** The page below sets out what happened and why, because the footage is widely circulated without any explanation of the cause.

On **29 April 2013**, National Airlines Flight 102 - a Boeing 747-400BCF registered **N949CA**, flying from Camp Bastion to Dubai via a refuelling stop at Bagram Airfield, Afghanistan - pitched up sharply after takeoff, stalled and crashed. **All seven crew, all United States citizens, were killed.**

The footage was recorded on the dashboard camera of a vehicle driving near the airfield.

### What went wrong

The aircraft was carrying **five heavily armoured vehicles** - three Cougars and two Oshkosh M-ATVs - with a combined weight of around **80 tons**.

During the takeoff, at least one vehicle broke free of its restraints and rolled aft through the cargo hold. In doing so it:

- struck the rack housing both the **cockpit voice recorder and flight data recorder**, which stopped recording;
- crashed through and damaged the **rear pressure bulkhead**;
- crippled key **hydraulic systems**;
- and broke the **jackscrew of the horizontal stabiliser**.

That last item decided the outcome. The horizontal stabiliser sets the aircraft's pitch trim, and with its jackscrew destroyed and the hydraulics gone, the crew had no way to counter the pitch-up. The aircraft was uncontrollable from that moment.

### The probable cause

The NTSB found the cause to be National Airlines' **inadequate procedures for restraining special cargo loads**, which led the loadmaster to restrain the cargo improperly - combined with the aircraft being loaded with **more heavy vehicles than could safely be secured in it**.

### Why this is a freighter problem specifically

On a passenger aircraft, the load is people in seats: individually light, evenly distributed, and physically incapable of moving aft in flight.

A freighter's load is concentrated, extremely heavy, and held in place only by its restraints. If those restraints fail, tens of tons of metal are free to move - and because the aircraft is rotating nose-up at exactly that moment, it moves aft, which is the worst possible direction. It shifts the centre of gravity backwards, worsening the pitch-up that caused it to move in the first place.

That feedback loop is why cargo restraint on outsize loads is treated as a flight-critical system, not a loading detail. It is also the reason main-deck cargo carried alongside passengers on a [747 Combi](/boeing_747_family/747-400m-combi.php) attracted such regulatory scrutiny.

### The aircraft

N949CA was a [747-400BCF](/boeing_747_family/747-400bcf.php) - a passenger 747-400 rebuilt as a freighter, loading through a main-deck side door. See also the [list of 747 accidents](/accidents_with_boeing_747s/).

### Related

- [The 747-400BCF](/boeing_747_family/747-400bcf.php)
- [A rejected takeoff that overran the runway](/videos/tradewinds-boeing-747-rejec.html)
- [Accidents involving the Boeing 747](/accidents_with_boeing_747s/)

## Tradewinds Boeing 747 rejected takeoff and overrun

*URL: https://www.boeing-747.com/videos/tradewinds-boeing-747-rejec.html*

A Tradewinds 747-200 rejected takeoff above V1 at Medellín in June 2006 and overran the runway. All six crew were unhurt.

On **7 June 2006**, a Tradewinds Airlines Boeing 747-200 freighter, **N922FT**, began its takeoff from runway 36 at **Medellín - José María Córdova Airport** in Colombia, in rain.

During the takeoff roll an **Engine Gas Temperature warning** illuminated for engines 1 and 4. The captain rejected the takeoff - but the aircraft was already **12 knots above V1**. Unable to stop in the remaining distance, it overran the end of the runway, lost its nose gear and came to rest about 150 metres beyond.

**All six crew were unhurt.**

### What V1 is, and why 12 knots matters

V1 is the **takeoff decision speed**. It is not a speed at which something happens to the aircraft; it is the speed calculated for that particular takeoff - that weight, that runway, that temperature, that surface condition - at which the option to stop runs out.

Below V1, the performance figures guarantee the aircraft can stop on the runway remaining. Above V1, they do not. The aircraft is committed to fly, and the correct response to almost any failure is to continue the takeoff, get airborne, and deal with it in the air.

That guarantee is not a comfortable margin. It comes from [the certification rejected-takeoff test](/videos/boeing-747-8-being-put-through-some-tough-tests.html), performed at maximum weight on **fully worn brakes with no reverse thrust** and no brake cooling. There is no slack left in it.

So rejecting 12 knots above V1 does not mean overshooting by a small margin. Kinetic energy rises with the square of speed, and the distance was already spoken for. On a **wet runway**, with reduced braking friction, there was never a stopping distance available.

### Why crews do it anyway

This is one of the most studied decisions in aviation, because the instinct is wrong in a specific and understandable way.

A warning light during the takeoff roll produces an immediate impulse to stop - the runway is right there, the aircraft is on the ground, and stopping feels like the safe option. Continuing feels like taking a damaged aircraft into the air.

Statistically the opposite is true. A high-speed rejected takeoff is far more dangerous than getting airborne with an engine problem, and overrun accidents following rejections above V1 are a recurring category. Training now emphasises that above V1 the decision has already been made.

The EGT warning here would not have prevented the aircraft flying.

### Related

- [The certification rejected takeoff test](/videos/boeing-747-8-being-put-through-some-tough-tests.html)
- [Reverse thrust on a wet runway](/videos/awesome-demonstration-of.html)
- [Accidents involving the Boeing 747](/accidents_with_boeing_747s/)