Chapter 15 Transition to Jet-Powered Airplanes
2016-11-4u2002·u2002jet, cool, low-velocity bypass air produces between 30 percent and 70 percent of the thrust produced by a turbofan engine. The fan-jet concept increases the total thrust of the jet engine, particularly at the lower speeds and altitudes. Although efficiency at the higher altitudes is lost (turbofan engines are
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