The thrust coefficient for a turboprop engine is a dimensionless parameter that characterizes the efficiency of the engine in converting engine power into thrust. Turboprop engines are a type of aircraft propulsion system that combines elements of both a jet engine and a propeller.
The thrust coefficient is defined as the ratio of the thrust force produced by the propulsion system to the dynamic pressure of the incoming air. Mathematically, it is expressed as:
where,
where:
- is the thrust coefficient,
- is the thrust force,
- is the air density,
- is the airspeed,
- is the reference area.