NASA fires up fourth RS-25 engine test – Space Daily

NASA conducted its fourth RS-25 single-engine hot fire of the year May 20, a continuation of its seven-part test series to support development and production of engines for the agency’s Space Launch System (SLS) rocket on future missions to the Moon.
The engine was fired for more than 8 minutes (500 seconds) on the A-1 Test Stand at Stennis Space Center near Bay St. Louis, the same amount of time RS-25 engines need to fire for launch of the SLS rocket.
The test series is designed to provide valuable…

Click here to view the original article.