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Feathering a propeller means

  • A.Turning the blades edge on to the airflow to minimise drag
  • B.Setting the blades flat to the airflow
  • C.Reversing the blade pitch
  • D.Stopping the propeller with a brake

Answer: A

A windmilling propeller on a failed engine produces enormous drag and a strong yawing moment. Feathering reduces that drag to a small fraction, which is why the action is one of the first items on any engine failure drill.

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