low-bypass turbofan


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low-bypass turbofan

A turbofan having a bypass ratio of less than 2:1. The usual bypass ratio of a low-bypass turbofan is 1:1.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
Older airliners like the 1960's Boeing 727 were exceptionally noisy due to their low-bypass turbofan engines, and are rated as Stage 2 with a takeoff noise level of 102.4 EPNdB.
Fighter jets use low-bypass turbofans to achieve fast bursts of speed, while commercial airliners use slower, more efficient high-bypass turbofans.