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Module 17. Propeller

The function of a propeller pitch lock is to prevent the propeller from

  • coarsening.
  • reducing below flight fine pitch.
  • fining off in the event of pitch lock mechanism failure.

binmaniac asking:

So the PITCH LOCK stops the propeller from fining off when the PITCH LOCK fails, does that make any sense at all?

Community Comments (1)

J
Jordi Posts: 198 18.06.2020 / 15:36
leaflets refer to a pitch lock that holds the fine pitch stop in position, but also adds that some
manufacturers have a pitch lock device that locks the prop in its last position in the event of failure of the pitch lock
mechanism. For a description of this system see Jeppesen Aircraft Propellers and Controls page 136.

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