DescriptionThe Boeing 747 is a large, long–range wide-body airliner and cargo aircraft manufactured by Boeing Commercial Airplanes in the United States.
After introducing the 707 in October 1958, Pan Am wanted a jet 2½ times its size, to reduce its seat cost by 30% to democratize air travel. In 1965, Joe Sutter left the 737 development to design the 747, the first twin aisle airliner. In April 1966, Pan Am ordered 25 747-100 aircraft and in late 1966, Pratt & Whitney agreed to develop its JT9D, a high-bypass turbofan. On September 30, 1968, the first 747 was rolled out of the custom-built Everett Plant, the largest building in the world by volume. The first flight took place on February 9, 1969 and the 747 was certified in December of that year. It entered service with Pan Am on January 22, 1970; it was the first airplane dubbed a "Jumbo Jet".
The 747 is a quadjet airliner, initially powered by JT9D turbofan engines, then GE CF6 and Rolls-Royce RB211 engines for the original variants. With a ten-abreast economy seating, it typically accommodates 366 passengers in three travel classes. It has a pronounced 37.5° wing sweep, allowing a Mach 0.85 (490 kn; 900 km/h) cruise speed, and its heavy weight is supported by four main landing gear legs with four-wheel bogies each. The partial double-deck aircraft was designed with a raised cockpit so it could be converted to a freighter airplane by installing a front cargo door, as it was initially thought that it would eventually be superseded by supersonic transports.
For many more details, incluing the long list of variants, click here.
Specifications below are for the 747-400. For other models see the above link.
- Cockpit crew 3, typical seats 416 (23F 78J 315Y)
- 231 ft 10 in (70.66 m)
- 211 ft 5 in (64.4 m)
- 63 ft 8 in (19.4 m)
- Wing Area:
- 5,650 sq ft (525 sq m)
- Empty Weight:
- 412,300 lb (187.0 t)
- 910,000 lb (412.8 t)
- Fuel Capacity:
- 63,705 US gal 241.15 m3
- 4 x 63,705 US gal 241.15 m3, thrust 62,100–63,300 lbf 276–282 kN each
- MMo Mach 0.92
- Cruise Speed:
- Mach 0.855 (504 kn; 933 km/h)
- 7,670 nmi 14,200 km
- Takeoff Dist.:
- 10,700 ft (3,260 m)