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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 ...
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. Because the ...
The max q, or maximum dynamic pressure, condition is the point when an aerospace vehicle's atmospheric flight reaches the maximum difference between the fluid dynamics total pressure and the ambient static pressure. For an airplane, this occurs at the maximum speed at minimum altitude corner of the flight envelope.
In-flight advisory given over 126.7 AIS Aeronautical Information Services A place mostly for presenting Flight Plans and filing reports AIXM Aeronautical information exchange model ALC Automatic level control ALI Airworthiness Limitation Item ALNA Airline network architecture ALS Approach lighting system: ALT 1: Alternate ALT 2: Altimeter: ALT ...
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.
Envelope (radar), the volume of space where a radar system is required to reliably detect an object; Envelope (waves), a curve outlining the peak values of an oscillating waveform or signal; Envelope detector, an electronic circuit used to measure the envelope of a waveform; Flight envelope, the limits within which an aircraft can operate
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Normal flight parameters are defined as: Pitch attitude between 25° nose-up and 10° nose-down. Bank angle less than 45°. Airspeed versus maneuver loading within the normal flight envelope. This expanded definition is intended to more fully capture the maneuvers, events, conditions, and circumstances that the record has shown lead to LOC. [11]