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Flight envelope is one of a number of related terms that are used in a similar fashion. It is perhaps the most common term because it is the oldest, first being used in the early days of test flight. It is closely related to more modern terms known as extra power and a doghouse plot which are different ways of describing the flight envelope of ...
China Airlines Flight 006 damaged by going outside its flight envelope to gain control after a drop of 3,000 m in 20 seconds. Flight envelope protection is a human machine interface extension of an aircraft's control system that prevents the pilot of an aircraft from making control commands that would force the aircraft to exceed its structural and aerodynamic operating limits.
Graph of altitude/speed region envelope for Lockheed U-2 depicting coffin corner. Coffin corner (also known as the aerodynamic ceiling [1] or Q corner) is the region of flight where a fast but subsonic fixed-wing aircraft's stall speed is near the critical Mach number, making it very difficult to keep an airplane in stable flight.
[citation needed] Efforts to reduce this separation above flight level 290 began almost immediately, [4] but doing so without compromising safety required improvements in altimeters and other equipment, due in part to inherent difficulties in accurately determining and maintaining aircraft altitudes and, therefore, the actual vertical distance ...
Upload file; Search. Search. ... 2 pushing the envelope. 3 comments. 3 need axes with labels. 3 comments. 4 Definitions. 1 comment. Toggle the table of contents. Talk ...
Write the return address in the top left corner. Write the recipient's address slightly centered on the bottom half of the envelope. Place the stamp in the top right corner.
English: A comprehensive case study covering all aspects of the F-16XL saga from its early conceptual design—including wind tunnel and ground testing, computer simulations, and program advocacy—through construction of the two prototypes and their use in both the Air Force flight demonstration effort and NASA aeronautical research. As much a ...
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