In Task D.6 of the Advanced Engine Study, three primary subtasks were accomplished: 1) Design and Parametric Data, 2) Engine Requirement Variation Studies, and 3) Vehicle Study/Engine Study Coordination. Parametric data were generated for vacuum thrusts ranging from 7500 lbf to 50000 lbf, nozzle expansion ratios from 600 to 1200, and engine mixture ratios from 5:1 to 7:1. the Failure Modes and Effects Analysis (FMEA) driven baseline design generated in Tasks D.4 and D.5 was used as a departure point for these parametric analyses. These data are intended to assist in vehicle definition and trade studies. In the Engine Requirements Variation Studies, the individual effects of increasing the throttling ratio from 10:1 to 20:1 and requiring the engine to operate at a maximum mixture ratio of 12:1 were determined. Off-design engine balances were generated at these extreme conditions and individual component operating requirements analyzed in detail. Potential problems were identified and possible solutions generated. In the Vehicle Study/Engine Study coordination subtask, vehicle contractor support was provided as needed, addressing a variety of issues uncovered during vehicle trade studies. This support was primarily provided during Technical Interchange Meetings (TIM) in which Space Exploration Initiative (SEI) studies were addressed.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Orbit Transfer Rocket Engine Technology Program, Advanced Engine Study Task D.6


    Contributors:

    Publication date :

    1992


    Size :

    76 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English






    Orbit transfer rocket engine technology program. Phase 2: Advanced engine study

    Erickson, C. / Martinez, A. / Hines, B. | NTRS | 1987



    SINGLE STAGE TO ORBIT ROCKET ENGINE

    UNDIRE ATHARVA | European Patent Office | 2023

    Free access