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A designer proposes a pure monocoque fuselage for a large transport to save the weight of the stringers. The proposal is

  • A.Sound provided the aircraft is not pressurised
  • B.Unsound only for composite structures
  • C.Unsound; the skin would need to be far thicker
  • D.Sound and standard practice

Answer: C

Removing the stringers lengthens every skin panel enormously, and buckling rather than material strength then sets the thickness. The skin needed would weigh far more than the stringers saved, which is precisely why semi-monocoque construction is universal at this size.

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