e-Military Product News

Fall 2015

The ground support industry's source for news, articles, events, product and services information.

Issue link: https://groundsupportmilitary.epubxp.com/i/573901

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AviationPros.com 7 The adaptive cycle engine is a new architecture that takes the best of a commercial engine and combines it with the best of a fghter engine. GE REPORTS The new design combines this "adaptability" with an additional source of air, called a "third stream of cooled air," that can be used to further increase thrust, improve fuel effciency, and dramatically reduce the amount of heat the aircraft has to handle. That's because the design, which was recently reviewed by propulsion experts from Lockheed Martin, Navy and NASA – in addition to the Air Force and GE, includes the industry's most expansive-ever use of heat-resistant materials called ceramic matrix composites, including the frst rotating ceramic matrix composite parts in the turbine. "There have only been a few major leaps of this kind of change in the history of jet engine development," says David Tweedie, manager of GE's adaptive cycle engineering programs. "There was the leap from piston engines to turbojets, there was the leap from turbojets to turbofans. Now we're making the leap from a conven- tional fxed cycle turbofan to a three- stream, adaptive cycle engine. We're Ultimate Flying Machine

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