Boeing 747-400

The Boeing 747-400 is a widebody commercial airliner, and is the most recent version of the Boeing 747 aircraft in service. The -400 series is the best selling model in the 747 family. The 747-400 is to be superseded by the Boeing 747-8 as the latest commercial model, which is scheduled to begin deliveries in 2010. The 747-400 was announced by Boeing Commercial Airplanes in October 1985. Compared to the 747-300 the 747-400 has 6 feet (1.8 m) wing... more

The Boeing 747-400 is a widebody commercial airliner, and is the most recent version of the Boeing 747 aircraft in service. The -400 series is the best selling model in the 747 family. The 747-400 is to be superseded by the Boeing 747-8 as the latest commercial model, which is scheduled to begin deliveries in 2010. The 747-400 was announced by Boeing Commercial Airplanes in October 1985. Compared to the 747-300 the 747-400 has 6 feet (1.8 m) wing tip extensions, 6 feet (1.8 m) winglets, and a glass cockpit, which dispensed with the need for a flight engineer. The 747-400 also improved on the -300 with an additional fuel tank in the horizontal stabilizer, engines with improved fuel efficiency and higher thrust, an all-new interior, revised fuselage/wing fairings and newer in-flight entertainment. Like the 747-300, the passenger version of the 747-400 has the stretched upper deck (SUD) as a standard feature. The SUD is almost twice as long as the original 747 upper deck. The SUD was... less