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A strut-braced wing is proposed because it

  • A.Removes the need for a tailplane
  • B.Eliminates wave drag
  • C.A higher aspect ratio for the same weight
  • D.Reduces the wetted area

Answer: C

The strut carries part of the bending, so the wing can be made more slender without the weight penalty that a cantilever of the same span would incur. The strut's own drag and the interference at its junctions are the costs.

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