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Are high bypass turbo jet engines suitable for tail and body mounted engines. If not what are the drawbacks, danger if so, are there any anycraft with any such setup?

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it depends on what you call 'high-bypass'. The RB.211 engine was tested in a tail mount on a VC-10:

enter image description here

For tail-mounted high-bypass engines, the engine mount gets long, which means it gets heavy.

Tail- and bodymounted engines in general have drawbacks that also apply to high-bypass engines:

  • the high position means maintenance access requires special equipment and takes longer
  • for bodymounted engines, engine choices are limited by the amount of space available (unless you redesign this part of the fuselage, which can get expensive)
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