NASA Concludes Summer of RS-25 Testing

NASA engineers closed a summer of hot fire testing Aug. 30 for flight controllers on RS-25 engines that will help power the new Space Launch System (SLS) rocket being built to carry astronauts to deep-space destinations, including Mars. The 500-second hot fire an RS-25 engine flight controller unit on the A-1 Test Stand at Stennis Space Center near Bay St. Louis, Mississippi marked another step toward the nation’s return to human deep-space exploration missions.

[MRM]

So is this a ninth firing of the development engine E0528 in this series, no-one has posted any details, I know the new E2063 is up for a green run soon but there does not seem to of been enough time from the last firing for them to of changed the engines on the stand, also the NASA caption on the video mention this was a development engine. Also was it testing engine controller FM4, NASA just says fifth engine controller. I know FM4 was delayed in production, so it seem logical they would do another firing of E0528 if it finally arrived from Honeywell.

[justcallplus]

on peut faire des batteries avec les gaz au moins récupérer un petit pourcentage. sinon l'environnement sera chauve avec ses points de combustions de chaleur