NASA and prime contractor Aerojet Rocketdyne are continuing a fast pace of RS-25 test firings with another single engine test on Thursday afternoon. Following a little more than two weeks after the last test, Development Engine 0528 (E0528) ran through its test in the A-1 test stand at the Stennis Space Center in Mississippi.
Another six-minute long firing will exercise another test case for the new, “3D printed” pogo accumulator assembly and will acceptance test another engine controller unit (ECU) for use on one of the early Space Launch System (SLS) launches.
The Stennis test team of personnel from NASA, Aerojet Rocketdyne, and facilities contractor Syncom Space Services (S3) once again took the engine through an event-driven countdown on Thursday.
Rather than targeting a specific time of ignition, the test will start when all of the prerequisite steps prior to ignition are complete and the hardware and the people are ready. Ignition occurred at 4:34 pm Central time (22:34 UTC).
RS-25 fires up on Thursday
In an email, Philip Benefield, Systems and Requirements Team Lead for the SLS Liquid Engines Office, told NASASpaceflight.com that the two primary objectives for this test are similar to the last one on January 16. ...