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An airplane has a 60 kt stall speed. A pilot is flying at 90 kt and then banks sharply to avoid other traffic and stalls the aircraft. Which of the following statements is correct with regards to this situation?
  • A
    As the pilot is in a turn, the stall will lead to a spin and this is unrecoverable.
  • B
    The aircraft will pitch down, build speed and recover by itself.
  • C
    As long as the airspeed is above the stall speed for the given configuration, an aircraft cannot stall.
  • D
    When the wing exceeds its critical angle of attack it will stall regardless of airspeed.

Stall is defined as a sudden reduction in the lift generated by an aerofoil when the critical angle of attack is reached or exceeded.

It is important for the pilot to understand that a stall is the result of exceeding the critical AOA, not of insufficient airspeed. Therefore, if the angle of attack is increased up to or beyond the critical angle, an aeroplane can be stalled at any airspeed or flight attitude.

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