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The design manoeuvring speed VA is significant to a pilot because below it

  • A.Full deflection cannot exceed the limit
  • B.The aircraft cannot stall
  • C.The aircraft cannot be flown safely
  • D.The cabin cannot be pressurised

Answer: A

Below VA the wing stalls before the structural limit is reached, so a full pull on the elevator cannot over-stress the aircraft. This is why turbulence penetration speeds are specified at or below VA, though the protection applies to a single axis and not to abrupt reversals.

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