Following closely on the heels of certifying one set of RS-25 engine upgrades and updates for the first Space Launch System (SLS) flights, NASA and RS-25 prime contractor Aerojet Rocketdyne have begun the next phase of testing on Wednesday afternoon. This involved the hot firing of development engine 0528 (E0528) at the Stennis Space Center at 14:45 local time, although the test ended early.
The RS-25 team is gearing up to begin manufacturing new engines for future SLS launches and are introducing modern manufacturing and production methods in hopes of reducing costs and improving performance.
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Development engine 0528 (E0528) is back in the A-1 Test Stand at the Stennis Space Center, sporting a new “3D printed” pogo accumulator assembly. The beachball-sized engine part is the first “production restart” hardware to be hot-fired.
“All future RS-25 tests plan to incorporate production restart hardware,” Philip Benefield, Systems and Requirements Team Lead for the SLS Liquid Engines Office, told NASASpaceflight.com in an email.
3D printed pogo accumulator:
With hot-fire testing to support certification of the “adaptation” version of the RS-25 complete in October, NASA and Aerojet Rocketdyne are beginning ...