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The dihedral effect from wing sweep

  • A.Increases with lift coefficient and so is strongest at low speed
  • B.Is independent of lift coefficient
  • C.Decreases with lift coefficient
  • D.Occurs only above the critical Mach number

Answer: A

The contribution depends on the difference in lift between the two wings, which grows as the whole wing works harder. That is why a swept wing aeroplane feels most strongly stable in roll at low speed and high angle of attack.

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