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Mass drivers. 3: EngineeringThe last of a series of three papers by the Mass-Driver Group of the 1977 Ames Summer Study is presented. It develops the engineering principles required to implement the basic mass-driver. Optimum component mass trade-offs are derived from a set of four input parameters, and the program used to design a lunar launcher. The mass optimization procedures is then incorporated into a more comprehensive mission optimization program called OPT-4, which evaluates an optimized mass-driver reaction engine and its performance in a range of specified missions. Finally, this paper discusses, to the extent that time permitted, certain peripheral problems: heating effects in buckets due to magnetic field ripple; an approximate derivation of guide force profiles; the mechanics of inserting and releasing payloads; the reaction mass orbits; and a proposed research and development plan for implementing mass drivers.
Document ID
Document Type
Arnold, W. (Hampshire Coll. Cleveland, OH, United States)
Bowen, S. (NASA Lewis Research Center Cleveland, OH, United States)
Cohen, S. (NASA Lewis Research Center)
Fine, K. (MIT)
Kaplan, D. (Michigan Univ.)
Kolm, M. (Haverford Coll.)
Kolm, H. (MIT)
Newman, J. (Amherst Coll.)
Oneill, G. K. (Princeton Univ.)
Snow, W. (MIT)
Date Acquired
August 9, 2013
Publication Date
January 1, 1979
Publication Information
Publication: NASA. Ames Res. Center Space Resources and Space Settlements
Subject Category
Distribution Limits
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19790024054Analytic PrimarySpace Resources and Space Settlements
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