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NASA\u2019s X-59 quiet supersonic research aircraft took another successful step toward flight with the conclusion of a series of engine performance tests.<\/p>\n
In preparation for the X-59\u2019s planned first flight this year, NASA and Lockheed Martin successfully completed the aircraft\u2019s engine run tests in January. The engine, a modified F414-GE-100 that powers the aircraft\u2019s flight and integrated subsystems, performed to expectations during three increasingly complicated tests that ran from October through January at contractor Lockheed Martin\u2019s Skunk Works facility in Palmdale, California.<\/p>\n
\u201cWe have successfully progressed through our engine ground tests as we planned,\u201d said Raymond Castner, X-59 propulsion lead at NASA\u2019s Glenn Research Center in Cleveland. \u201cWe had no major showstoppers. We were getting smooth and steady airflow as predicted from wind tunnel testing. We didn\u2019t have any structural or excessive vibration issues. And parts of the engine and aircraft that needed cooling were getting it.\u201d<\/p>\n
The tests began with seeing how the aircraft\u2019s hydraulics, electrical, and environmental control systems performed when the engine was powered up but idling. The team then performed throttle checks, bringing the aircraft up to full power and firing its afterburner \u2013 an engine component that generates additional thrust \u2013 to maximum.<\/p>\n \n