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Quick Summary

A low-bypass turbofan engine is a type of jet engine where a relatively small amount of air bypasses the core of the engine, while the majority of the air passes through the core. This design is typically used for aircraft operating in the low supersonic range (Mach 1 to 3).12

Key features include:
* Bypass Ratio: The bypass ratio, which is the ratio of bypass air to core air, is low, generally up to 2.12
* Thrust Augmentation: Low-bypass turbofans often incorporate an afterburner to increase thrust for specific flight conditions like acceleration or combat maneuvers.2
* Efficiency: While less fuel-efficient than high-bypass engines for subsonic flight, low-bypass turbofans offer better performance at higher speeds.2

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