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Anhedral is fitted to some aeroplanes in order to

  • A.Reduce an excessive dihedral effect
  • B.Increase the dihedral effect
  • C.Reduce the wing's induced drag
  • D.Improve ground clearance for the engines

Answer: A

A high mounted swept wing can produce far more dihedral effect than is wanted, giving a badly damped Dutch roll. Drooping the wing tips downward removes part of it and restores an acceptable balance between the two lateral modes.

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