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The main undercarriage loads on a transport are usually introduced into the structure at

  • A.The rear spar and a reinforced frame
  • B.The forward pressure bulkhead
  • C.The wing tip
  • D.The fin attachment

Answer: A

The gear applies very large concentrated vertical, drag and side loads, so it is attached to the strongest available structure, typically the rear spar and a reinforced wing-to-body frame. Spreading those loads into the shell without a weight penalty is one of the harder layout problems.

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