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  • 1
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    Update on development of the Space Shuttle main engine /as of 5 May 1977/ (1977)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The development and testing of the Space Shuttle main engine are described. The preburners, main injector, main combustion chamber, and 35:1 expansion ratio test nozzle were successfully run at full power level (109 percent of rated power level). Integral combustion stability aids damped induced instability oscillations within 6 milliseconds. Three significant turbomachinery problems were identified and solved during the past year. These problems involved high-pressure fuel turbopump subsynchronous whirl, severe overheating of the turbine bearing and components and, in the high-pressure oxidizer turbopump, burning that first occurred in the drain cavity downstream of the primary oxidizer seal.
    Keywords: SPACECRAFT PROPULSION AND POWER
    Type: AIAA PAPER 77-808 , Propulsion Conference; Jul 11, 1977 - Jul 13, 1977; Orlando, FL; US
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Space Shuttle main engine progress through the first flight (1981)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: A system overview is presented for the Space Shuttle Main Engine (SSME), and extensive performance comparisons are made with the Saturn V booster powerplant showing (1) staged-combustion turbopump pressures of 7,500 vs 1,100 psi for the Saturn V first stage; (2) a specific impulse of 455 vs 300; (3) power density of 100 vs 20 hp/lb; and (4) chamber pressures of 3200 vs 1000 psia. An account is then given of the SSME testing program, engine certification process and flight aboard the Space Shuttle Columbia, with attention to anomalies detected during flight in turbopump operation and mixture ratio sensor function.
    Keywords: SPACECRAFT PROPULSION AND POWER
    Type: AIAA PAPER 81-1373 , Joint Propulsion Conference; Jul 27, 1981 - Jul 29, 1981; Colorado Springs, CO; US
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Full power level development of the Space Shuttle main engine (1982)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Development of the Space Shuttle main engine for nominal operation at full power level (109 percent rated power) is continuing in parallel with the successful flight testing of the Space Transportation System. Verification of changes made to the rated power level configuration currently being flown on the Orbiter Columbia is in progress and the certification testing of the full power level configuration has begun. The certification test plan includes the accumulation of 10,000 seconds on each of two engines by early 1983. Certification testing includes the simulation of nominal mission duty cycles as well as the two abort thrust profiles: abort to orbit and return to launch site. Several of the certification tests are conducted at 111 percent power to demonstrate additional safety margins. In addition to the flight test and development program results, future plans for life demonstration and engine uprating will be discussed.
    Keywords: SPACECRAFT PROPULSION AND POWER
    Type: AIAA PAPER 82-1103 , Joint Propulsion Conference; Jun 21, 1982 - Jun 23, 1982; Cleveland, OH
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Update on the development of the Space Shuttle main engine /as of June 20, 1978/ (1978)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: During the last year, significant progress was made toward the development of the Space Shuttle Main Engine which will provide propulsion for the Space Shuttle Orbiter Vehicle. Component and subsystem testing was conducted at the Rocketdyne Santa Susana Field Laboratory on combustion devices, turbomachinery, and the engine POGO suppression system. Engine testing continued at the National Space Technology Laboratories on both single engines and a three-engine cluster. As a result of these tests, hardware limitations were identified and design modifications were incorporated and evaluated by further testing. Current effort is being directed toward the delivery of the first flight engines and certification of the SSME for manned flight.
    Keywords: SPACECRAFT PROPULSION AND POWER
    Type: AIAA PAPER 78-1001 , Joint Propulsion Conference; Jul 25, 1978 - Jul 27, 1978; Las Vegas, NV; US
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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