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bypass ratio

British  

noun

  1. 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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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

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

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