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Wing sweep contributes to the dihedral effect because

  • A.Swept wings have more area
  • B.Sweep increases the wing's dihedral angle
  • C.Sweep reduces the wing's lift curve slope
  • D.The leading wing generates more lift

Answer: D

In sideslip the forward wing meets the flow more nearly perpendicular and produces more lift than the trailing one. The effect can be so powerful on a swept wing aeroplane that anhedral must be added to keep it within bounds.

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