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bypass ratio

British

noun

aeronautics the ratio of the amount of air that bypasses the combustion chambers of an aircraft gas turbine to that passing through them

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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The jet engines on early passenger aircraft had a low bypass ratio, producing a lot of their thrust from the fast-moving air blasting out of the rear of the core.

From Economist • Sep. 17, 2015

Modern jets have a bypass ratio of up to 12:1 compared with about 5:1 or less in the 1970s.

From Economist • Sep. 17, 2015

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023