Free turbine

Free turbine

A turbine or stage of turbines in a gas turbine engine that is not used to drive the compressor in the gas-generator section of the engine.

A free turbine may be used to drive the reduction gears for the propeller in a turboprop engine, or the transmission and a rotor of a helicopter. Free turbines are also used in industrial turbine engines to drive pumps or generators. Free turbines are sometimes referred to as free power turbines.

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Part of Speech: noun
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Industry/Domain: Aviation
Category: Aeronautics
Company: Aviation Supplies & Academics
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