The Design and Performance Estimates for the Propulsion Module for ...
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The Design and Performance Estimates for the Propulsion Module for ...
NASA Technical Memorandum 105299. AIAA-91-3136. The Design and Performance Estimates for the Propulsion Module for the. Booster of a TSTO Vehicle.
NASA Technical Memorandum 105299 AIAA-91-3136
The Design and Performance Estimates for the Propulsion Module for the Booster of a TSTO Vehicle
Christopher A. Snyder and Jaime J. Maldonado Lewis Research Center Cleveland, Ohio
Prepared for the Aircraft Design Systems and Operations Meeting cosponsored by AIAA, AHS, and ASEE Baltimore, Maryland, September 23-25, 1991
THE DESIGN AND PERFORMANCE ESTIMATES FOR THE PROPULSION MODULE FOR THE BOOSTER OF A TSTO VEHICLE Christopher A. Snyder* and Jaime J. Maldonado§ National Aeronautics and Space Administration Lewis Research Center Cleveland, Ohio 44135
ABSTRACT The Aeropropulsion Analysis Office of the NASA Lewis Research Center is presently studying propulsion systems for possible low-risk replacements for the space shuttle. This study focussed its work on a smaller version of an Air Force two-stage-to-orbit (TSTO) concept called Beta. The NASA concept, Beta II, is to deliver 10,000 pounds to low polar orbit. (The original Beta vehicle is sized to delivered 50,000 pounds.) The booster stage requires a propulsion system for acceleration from take-off to the staging point of Mach 6.5 and about 100,000 feet altitude. The Beta II booster engine module consists of a unique over/under turbine bypass engines/ramjet engine configuration. Performance trade-offs were required to integrate the inlet, turbomachinery, and ramjet design and operation. Discussions about these components and their interactions are included. The methodology and constraints used in the module layout and design will also be discussed. Propulsion system weight and performance will be presented along with preliminary mission study results of vehicle size.
