If you wish to contribute or participate in the discussions about articles you are invited to join SKYbrary as a registered user


Variable Pitch Propeller

From SKYbrary Wiki

Article Information
Category: General General
Content source: SKYbrary About SKYbrary
Content control: SKYbrary About SKYbrary


A variable pitch propeller is one in which the pilot is able to adjust the blade pitch during flight. The blade angle can thus be adjusted to its optimum value for the phase of flight, be it takeoff, climb or cruise. In some installations, it is possible to feather the propeller. For a variable pitch propeller, the pilot controls the blade pitch with the propeller control. However, the propeller RPM will vary, in the same fashion as a fixed pitch propeller, as a function of engine RPM or of airspeed. A more sophisticated variant of the variable pitch propeller is the constant speed propeller which, while in flight, will maintain the same RPM irrespective of throttle lever movement or airspeed.

Related Articles

Further Reading