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National Launch System Space Transportation Main EngineThe present liquid-oxygen/liquid-hydrogen engine is described as meeting the specific requirements of the National Launch System (NLS) Program including cost-effectiveness and robustness. An overview of the NLS and its objectives is given which indicates that the program aims to develop a flexible launch system to meet security, civil, and commercial needs. The Space Transportation Main Engine (STME) provides core and boost propulsion for the 1.5-stage vehicle and core propulsion for the solid booster vehicle. The design incorporates step-throttling, order-of-magnitude reductions in welds, and configuration targets designed to optimize robustness. The STME is designed to provide adaptable and dependable propulsion while minimizing recurring costs and is designed to meet the needs of NLS and other typical space-transportation programs currently being planned.
Document ID
19920029969
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hoodless, Ralph M., Jr.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Monk, Jan C.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Cikanek, Harry A., III
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 15, 2013
Publication Date
October 1, 1991
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
IAF PAPER 91-259
Accession Number
92A12593
Distribution Limits
Public
Copyright
Other

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