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Wing twist (geometric and aerodynamic) is used to:

1. improve stall characteristics.
2. reduce induced drag.
3. reduce interference drag.
4. increase VMO.

The combination that regroups all of the correct statements is:

  • A
    1, 2.
  • B
    2, 3.
  • C
    3, 4.
  • D
    1, 3.

Wing twist is a feature added to wings to adjust lift distribution along an aircraft’s wing.
It improves stall characteristics by ensuring that the wing tip is the last part of the wing surface to stall.

It does so by twisting the wingtip by a small margin, giving the wing tip a smaller angle of attack than the wing root.
By doing this, it also reduces induced drag.

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