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Taper is applied to a wing principally to

  • A.Raise the thickness ratio at the tip
  • B.Reduce the wing's span
  • C.Approach elliptical loading, simply built
  • D.Increase the wing's area

Answer: C

A straight-tapered planform with a taper ratio around a third approximates elliptical loading closely enough for most purposes, without the compound curvature an elliptical planform would demand. It also moves the loading inboard and relieves root bending.

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