Engine Pressure Ratio(EPR)

Definition

The ratio of turbine discharge pressure to compressor inlet pressure, used as a thrust indication on some turbofan engines. EPR directly relates to the thrust the engine is producing.

Related Terms

N1

The rotational speed of the low-pressure compressor and fan in a turbofan engine...

Thrust

The forward force produced by an engine to propel the aircraft. In jet engines, ...

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