Jan 17 1981
From The Space Library
NASA reported success in the last Shuttle main-engine test (static firing 12); engine 3 shut down as planned at 235 seconds, engines 1 and 2 shut down at 624.5 seconds. All major objectives were satisfied, including gimbaling and POGO pulsing; loading liquid oxygen (LOX) with the anti-geyser line removed; shutting down engines 1 and 2 using a flight high-pressure oxygen turbopump overspeed-prevention sequence; and completing a full-duration run using flight nozzles. Completion of this test ended the main propulsion test (MPT) constraint on the Space Transportation System STS-1. The test facility would be phased down until full power-level tests scheduled to take place in the spring of 1982. (NASA Dly Actv Rept, Jan 21/81; NASA Release 81-16; MSFC Release 81-8)
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