Apollo Lunar Module ascent propulsion - No second chance

Details Apollo Lunar Module ascent propulsion - No second chance Apollo Lunar Module ascent propulsion - No second chance

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jpnt.confs....h&link_type=abstract

AIAA, SAE, ASME, and ASEE, Joint Propulsion Conference and Exhibit, 28th, Nashville, TN, July 6-8, 1992. 7 p.

Computer Science

Performance

Apollo Lunar Experiment Module, Ascent Propulsion Systems, Combustion Stability, Engine Design, Propulsion System Performance, Apollo Project, Injectors, Reliability

Scientific paper

The history of the Apollo Lunar Module Ascent Engine propulsion system is examined detailing the development, production, and performance of the engine. The storable-propellant pressure-fed rocket engine has an ablative-lined thrust-chamber assembly, redundant propellant valves, and a doublet injector. The engine system was designed without a backup, and specific attention is given to the testing program for demonstrating the readiness of the propulsion system. Design feasibility testing was a critical milestone because combustion instability deficiencies were addressed. Other key issues include the weight limitations, an injector designed with acoustic cavities, and weld-cracking problems. The program is considered successful in retrospect since the ascent engine demonstrated 100-percent reliability.

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