Variable cycle engine

A variable cycle engine (VCE) is an engine that is designed to operate efficiently under mixed flight conditions, such as subsonic, transonic and supersonic.

The next generation of Supersonic transport (SST) may require some form of VCE. SST engines require a high Specific Thrust (net thrust/airflow) at supersonic cruise to keep the cross-sectional area of the powerplant to a minimum, so as to reduce aircraft drag. Unfortunately, this implies a high jet velocity not only at supersonic cruise, but at take-off, which makes the aircraft noisy.

单词	Variable Cycle Engine
释义	Variable Cycle Engine 英语百科 Variable cycle engine A variable cycle engine (VCE) is an engine that is designed to operate efficiently under mixed flight conditions, such as subsonic, transonic and supersonic. The next generation of Supersonic transport (SST) may require some form of VCE. SST engines require a high Specific Thrust (net thrust/airflow) at supersonic cruise to keep the cross-sectional area of the powerplant to a minimum, so as to reduce aircraft drag. Unfortunately, this implies a high jet velocity not only at supersonic cruise, but at take-off, which makes the aircraft noisy.
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Variable Cycle Engine

Variable cycle engine