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Engines buried in the wing root, as on early jet transports, were abandoned mainly because

  • A.They cannot be fitted with thrust reversers
  • B.They give poor pressure recovery
  • C.Engine change becomes difficult
  • D.They produce excessive drag

Answer: C

Cutting a large hole in the primary structure at its most heavily loaded station is expensive, and an engine change becomes a major operation. A pod hung on a pylon, by contrast, can be removed and replaced in a matter of hours.

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