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Which of the following is not a thrust reverser type?

Cascade compressor reverser

Clamshell reverser

Bucket reverser

Cold stream cascade reverser

  • A.Clamshell reverser
  • B.Bucket reverser
  • C.Cold stream cascade reverser
  • D.Cascade compressor reverser

Answer: D

Correct answer: Cascade compressor reverser

No such device exists - a reverser acts on the exhaust or bypass streams leaving the engine, never on the compressor. The three genuine types are the clamshell and bucket reversers, which turn the hot exhaust, and the cold stream cascade reverser, which turns the bypass air through fixed vanes exposed by a translating cowl. Turboprops achieve the same end with reverse propeller pitch.

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