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  2. Coffin corner (aerodynamics) - Wikipedia

    en.wikipedia.org/wiki/Coffin_corner_(aerodynamics)

    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 stall speed is the minimum speed required to maintain level flight, any reduction ...

  3. Flight envelope - Wikipedia

    en.wikipedia.org/wiki/Flight_envelope

    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 ...

  4. Ceiling (aeronautics) - Wikipedia

    en.wikipedia.org/wiki/Ceiling_(aeronautics)

    The service ceiling is the maximum altitude of an aircraft during normal operations. Specifically, it is the density altitude at which flying in a clean configuration , at the best rate of climb airspeed for that altitude and with all engines operating and producing maximum continuous power, will produce a given rate of climb.

  5. Aircraft upset - Wikipedia

    en.wikipedia.org/wiki/Aircraft_upset

    The plane was approaching the coffin corner of its flight envelope, when the turbulence was encountered. After that near disaster, the stall mach buffet margins were widened on all jet aircraft, to preclude a plane getting into that situation again, where severe turbulence narrows the "coffin corner" margins so severely that the pilots do not ...

  6. Oregon cites Republic Services' Coffin Butte Landfill ... - AOL

    www.aol.com/oregon-cites-republic-services...

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  7. Talk:Coffin corner (aerodynamics) - Wikipedia

    en.wikipedia.org/wiki/Talk:Coffin_corner...

    Descending (into warmer and denser air) at that singular (equivalent) airspeed/mach combination into a flight regime where the stall (equivalent) airspeed is less than the mach limit is the only option to get out of the coffin corner. The max altitude line on this aircraft's flight envelope prevents it from having a coffin corner.

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