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    US Air Force’s Sixth Generation Fighter Engine Completes Testing

    A new engine that will power the F-35 and the US Air Force’s Next Generation Air Dominance (NGAD) programme has completed testing. The GE engine, called XA100, uses an adaptive cycle design that provides a high-thrust mode for maximum power and a high-efficiency mode for fuel savings and loiters time.

    NGAD is a family of systems currently in development by USAF and industry partners. At the center of this programme is a sixth-generation fighter to replace the F-22 (commonly referred to as F-X). Last September it was revealed that the fighter had been designed, developed, and tested in the space of a year and flown.

    More recently, the concept art of the new combat jet appeared in a USAF biannual report on acquisition.

    GE initiated testing of the engine at its Evendale, Ohio, altitude test facility in December last year. The engine’s performance and mechanical behavior were consistent with pre-test predictions and fully aligned with USAF’s Adaptive Engine Transition Program (AETP) objectives.

    GE says this successful test validates the ability of the engine to deliver “transformational propulsion capability” to fighter aircraft.

    “We were exceptionally pleased with how the engine performed throughout the test,” said David Tweedie, GE Edison Works’ general manager for advanced combat engines. “Bringing a new centreline fighter engine to test for the first time is a challenging endeavor, and this success is a testament to the great team that worked so hard to get us here. We’re looking forward to working with the Air Force and other stakeholders to identify the next steps toward bringing this revolutionary capability out of the test cell and into the hands of the warfighter.”

    Key innovations of the XA100-GE-100 engine

    An adaptive engine cycle that provides both a high-thrust mode for maximum power and a high-efficiency mode for optimum fuel savings and loiters time
    A third-stream architecture that provides a step-change in thermal management capability, enabling future mission systems for increased combat effectiveness
    Extensive use of advanced component technologies, including ceramic matrix composites (CMC), polymer matrix composites (PMC), and additive manufacturing
    These innovations increase thrust 10%, improve fuel efficiency by 25%, and provide significantly more aircraft heat dissipation capacity, all within the same physical envelope as current propulsion systems.

    Assembly of GE’s second prototype XA100 engine is well underway, with testing on that engine expected to begin later in 2021. Once complete, that will conclude the major deliverables of the AETP program.

    The XA100 is a product of GE Edison Works, a business unit dedicated to the research, development, and production of advanced military solutions. This business unit has full responsibility for strategy, innovation, and execution of advanced programmes.

    ELE Times Research Desk
    ELE Times Research Desk
    ELE Times provides extensive global coverage of Electronics, Technology and the Market. In addition to providing in-depth articles, ELE Times attracts the industry’s largest, qualified and highly engaged audiences, who appreciate our timely, relevant content and popular formats. ELE Times helps you build experience, drive traffic, communicate your contributions to the right audience, generate leads and market your products favourably.

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