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[b]NASA Continues Progress on the Journey to Mars with Latest RS-25 Rocket Engine Test[/b]
NASA engineers successfully conducted a development test of the RS-25 rocket engine Thursday, Aug. 18 at NASA's Stennis Space Center near Bay St. Louis, Miss.
A variety of NASA officials and contractor representatives, as well as social and traditional media members, gathered to watch the 420-second test of RS-25 engine No. 0528.
During the test, the engine was run through a range of varying conditions and operating parameters. For instance, operators used an extended low-flow chill down process for the engine prior to the test and also experimented with a high-pressure start process. A special engine controller wiring configuration was tested, and the engine was fired at ranges of 80 to 111 percent power during the test. Test data on engine and controller performance was provided by the facility team at twice the normal rate.
This latest test marks the third in a six-test developmental series. NASA tested RS-25 engine No. 2059 in March for use as a flight engine on the second integrated test flight of SLS with the agency's Orion spacecraft, known as Exploration Mission-2, which will carry a crew aboard the space capsule for the first time.
The latest developmental series of tests began with a July 14 firing, followed by a July 29 test. Future tests are scheduled for this fall and also will focus on gathering performance data on the engine and its new controller.
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