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Boeing conducted a series of test flights in 2015 with a modified Boeing 757, incorporating new wing-leading-edge sections and an actively blown vertical tail. [10] The left wing was modified to include a 6.7 m-span glove section supporting a variable-camber Krueger flap to be deployed during landing, protruding just ahead of the leading edge.
Ball-Bartoe Jetwing used for blown-wing research. Note the "augmentor", intended to direct the discharged airflow over the wingWilliams [8] states some flap blowing tests were done at the Royal Aircraft Establishment before the Second World War, and that extensive tests were done during the war in Germany including flight tests with Arado Ar 232, Dornier Do 24 and Messerschmitt Bf 109 aircraft.
High-lift devices compensate for this design trade-off by adding lift at takeoff and landing, reducing the speed and distance required to safely land the aircraft, and allowing the use of a more efficient wing in flight. The high-lift devices on the Boeing 747-400, for example, increase the wing area by 21% and increase the lift generated by 90 ...
Boeing 747: Corrosion in pylon fuse pin leading to metal fatigue 4 on board, 39 on ground Engine No.3 separated from its pylon which caused the adjacent engine No.4 to also fall off, taking the slats with them; stall and crash on attempted landing 1996-07-17 TWA Flight 800: Moriches Inlet, near East Moriches, New York Boeing 747: Fuel tank ...
Among its six active jets is one Boeing 747-400, per ch-aviation data. 88-year-old King Salman travels with a 1,500-person entourage and two Mercedes Benz limousines, The Points Guy reported.
The gas-guzzling four-engine 747 is costly and inefficient compared to newer twin-engine widebodies, like Boeing's 777 and 787 and Airbus' A330neo and A350, that airlines now more readily rely on.
The Boeing 747-121 [Note 1] rolled off of Boeing's assembly line in 1969 as the 25th Boeing 747 constructed. [citation needed] Originally registered as N744PA, the aircraft was delivered to Pan American World Airways . N744PA remained under the ownership of Pan Am until 1991, when the airline declared bankruptcy on January 8, 1991. [1] [2]
During my career, I worked on several aircraft projects for Boeing, including the Advanced Tactical Fighter program, the Boeing 777, and the 787 Dreamliner. It was always interesting and challenging.