SLS RS-25 Engine Test, 17 October 2023

An Aerojet Rocketdyne RS-25 rocket engine (RS-25 developmental engine E0525) was tested on the Fred Haise Test Stand (formerly A-1 Test Stand) at the John C. Stennis Space Center in Mississippi, on 17 October 2023, at 20:31 UTC (15:31 CDT). This was the first hot fire test out of the 12 planned in the final round of certification testing ahead of production of an updated set of engines for NASA’s Space Launch System (SLS) that will be used beginning with Artemis V. The test had a planned duration of 550 seconds, with the RS-25 engine running up to 111% power level, the same level needed to power SLS. Credit: NASA #RS25