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Ground effect during the landing flare typically

  • A.Reduces downwash, pitching nose down
  • B.Increases downwash at the tail
  • C.Has no effect on pitching moment
  • D.Increases the elevator's effectiveness

Answer: A

The ground constrains the wing's trailing vortices, reducing the downwash the tailplane sees and increasing its download. The resulting nose down moment must be countered with additional up elevator at exactly the moment least is available.

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