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Engines

Propeller

TERM · Engines

At a glance

Meaning of Propeller

A rotating set of blades that converts engine power into thrust.

More about Propeller

Propeller blades act as rotating aerofoils, accelerating air to produce thrust. Their shape and pitch affect how engine power is used.

Some propellers have fixed pitch; others change blade angle to suit operating conditions. A propeller is the thrust-producing device, not the engine that supplies its power.