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SLS Core Stage Green Run validates propulsion system performance and modeling May 11, 2021 Engineers with NASA’s Space Launch System (SLS) program and prime Core Stage contractor Boeing continue to review terabytes of data from the now-complete, once-in-a-generation Green Run design verification test campaign. A series of eight test cases were completed, culminating in a 500-second long, full-duration static firing of the stage in the B-2 Test Stand at Stennis. The Core Stage was the major new piece developed for the agency’s SLS launch vehicle, and both NASA and Boeing are pleased with results seen so far. Initial analysis and reviews of the test-firing data show that actual Main Propulsion System (MPS) performance was close to most predictions by analytical models and the system demonstrated operating margin during stressing tests conducted during the static fire.

United statesAerojet rocketdyneCollin jacksonCharlie blackwell thompsonBrady kennistonLaunch systemCore stageGreen runMain propulsion systemSpace shuttleExternal tankShuttle orbiterSpace shuttle main enginesStage propulsion leadBoeing propulsion technical lead engineerStage controller