This report describes the results of the testing performed at the Air Force Rocket Propulsion Laboratory. The purpose of this program was to demonstrate the performance, stability, injector/chamber compatibility and long-duration operation of low-cost scalable pressure-fed engines which use storable propellants. Tests were conducted at the 250,000-pound-thrust level with thrust chamber assemblies using two different design approaches: a pintle injector designed by TRW Systems and a modular injector designed by Rocketdyne. Short-duration tests were performed to measure performance, stability and effects of design variation. Long-duration tests were conducted to demonstrate performance, injector/chamber compatibility, and to measure the performance potential of low-cost ablative chambers. The program goals of achieving 90 percent of theoretical specific impulse, 140-second-duration firing and low-cost thrust chamber assemblies were all achieved.


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    Injector/Chamber Scaling Evaluation-TRW Injector Development

    B. R. Bornhorst / M. F. Powell / D. A. Grimes et al. | NTIS | 1969


    Injector/Chamber Scaling Evaluation, Facility Checkout

    M. F. Powell / P. W. Powell / M. J. Fleiszar et al. | NTIS | 1969


    Main Chamber and Preburner Injector Technology

    R. J. Santoro / C. L. Merkle | NTIS | 1999


    Main Chamber and Preburner Injector Technology

    Santoro, Robert J. / Merkle, Charles L. | NTRS | 1999