Evaluation of a pentapropellant upper stage (1970) [pdf]
ntrs.nasa.gov
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This report describes the results of an exploratory analysis of a pentapropellant (hydrogen/fluorine-oxygen/lithium-beryllium) upper stage conducted under Supplemental Agreement No. 1to Contract NASw-1965, Tripropellant Stage Study.
How novel. 4 out of the 5 ingredients used in lithium batteries ...