Transcription of PART III. SPACE SHUTTLE MAIN ENGINE
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SPACE TRANSPORTATION SYSTEM HAER No. TX-116 Page 248 part III. SPACE SHUTTLE main ENGINE Introduction The SPACE SHUTTLE main ENGINE (SSME) was the first and only fully reusable, high performance, liquid rocket ENGINE in the world rated for human spaceflight. The staged combustion ENGINE burned a mixture of LO2 and LH2 to lift the vehicle into SPACE . The ET provided the fuel and oxidizer for the three SSMEs, which worked in tandem with the twin SRBs during the first two minutes of powered flight.
one year, occurred at roughly the same time as the Phase B Space Shuttle studies by North American Rockwell and McDonnell Douglas, as well as the Phase A Alternate Space Shuttle studies.1046 The SSME was considered the “pacing component of the Shuttle,” and its development proceeded in tandem with that of the orbiter.1047
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