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The Boeing 747-400 is a large, long-range wide-body airliner produced by Boeing Commercial Airplanes, an advanced variant of the initial Boeing 747.The "Advanced Series 300" was announced at the September 1984 Farnborough Airshow, targeting a 10% cost reduction with more efficient engines and 1,000 nautical miles [nmi] (1,900 km; 1,200 mi) of additional range.
The improved 747-400, featuring canted winglets, entered service in February 1989 with Northwest Airlines. The 747-400 is an improved model with increased range. It has wingtip extensions of 6 ft (1.8 m) and winglets of 6 ft (1.8 m), which improve the type's fuel efficiency by four percent compared to previous 747 versions. [179]
Boeing 747-400 [11] Airliner (wide-body) 1988 ... Ground nesting and water birds have to be able to run or paddle at their takeoff speed before they can take off.
Minimum takeoff safety speed. [7] [8] [9] V 3: Flap retraction speed. [8] [9] V 4: Steady initial climb speed. The all engines operating take-off climb speed used to the point where acceleration to flap retraction speed is initiated. Should be attained by a gross height of 400 ft (120 m). [10] V A: Design maneuvering speed. This is the speed ...
Boeing employees and executives watched on as the final 747 jet took off from Washington. Customer demand for the plane had diminished as Boeing and Airbus developed more fuel efficient two-engine ...
The Boeing Dreamlifter, officially the 747-400 Large Cargo Freighter (LCF), is a wide-body cargo aircraft modified extensively from the Boeing 747-400 airliner. With a volume of 65,000 cubic feet (1,840 m 3 ) [ 1 ] it can hold three times that of a 747-400F freighter. [ 2 ]
The older 747-400 was delivered in 2001, while a newer 747-8 was delivered in 2012. The Sultan also owns a business-jet version of Airbus' A320 and A319 jets. Qatar.
Some airplanes can take off at low speed, this being a short takeoff. ... A landing Qantas Boeing 747-400 passes close to houses on the boundary of London ...