Features

December 2015 Issue

Propeller Blades' AOA Changes with Airspeed

For some, the concept of how a constant-speed propeller maintains the desired rpm can be a difficult one to grasp. What the FAA’s Airplane Flying Handbook (FAA-H-8083-3B) has to say may help: “When an airplane is nosed up into a climb from level flight, the engine will tend to slow down. Since the governor is sensitive to small changes in engine rpm, it will decrease the blade angle just enough to keep the engine speed from…

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