How Does a Constant-Speed Propeller Work?
Pilot Institute
JUNE 4, 2025
While a constant-speed propeller system is not too difficult to operate, many pilots do not fully understand how it works, and many do not understand why it exists. The threaded shaft is connected to a pilot valve, which controls the flow of oil into and out of the propeller hub. A Practical Example The prop lever (i.e.,
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