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Which statement about deep stall is TRUE?

  • A.It affects low conventional tails most severely
  • B.It occurs at high speed
  • C.It is prevented by increasing rudder area
  • D.Recovery may be impossible once the condition is established

Answer: D

The blanketed tailplane leaves no pitch authority to lower the nose, which is why prevention by stick pusher is the accepted answer rather than any recovery technique. It is a high angle of attack, low speed phenomenon of high-mounted tails.

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