Engines

Bypass Ratio

Definition

The ratio of air passing around the engine core to air passing through the core in a turbofan. Modern high-bypass engines (ratio 10:1 or higher) achieve excellent fuel efficiency with reduced noise.

Related Terms

Turbofan Engine

A gas turbine engine where a large fan driven by the turbine section produces mo...

Thrust

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

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