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Space Shuttle 2 advanced space transportation system, volume 2To determine the best configuration from all candidate configurations, it was necessary first to calculate minimum system weights and performance. To optimize the design, it is necessary to vary configuration-specific variables such as total system weight, thrust-to-weight ratios, burn durations, total thrust available, and mass fraction for the system. Optimizing each of these variables at the same time is technically unfeasible and not necessarily mathematically possible. However, discrete sets of data can be generated which will eliminate many candidate configurations. From the most promising remaining designs, a final configuration can be selected. Included are the three most important designs considered: one which closely approximates the design criteria set forth in a Marshall Space Flight Center study of the Shuttle 2; the configuration used in the initial proposal; and the final configuration. A listing by cell of the formulas used to generate the aforementioned data is included for reference.
Document ID
19900017538
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Adinaro, James N. (Auburn Univ. AL, United States)
Benefield, Philip A. (Auburn Univ. AL, United States)
Johnson, Shelby D. (Auburn Univ. AL, United States)
Knight, Lisa K. (Auburn Univ. AL, United States)
Date Acquired
September 6, 2013
Publication Date
April 27, 1989
Subject Category
Space Transportation
Report/Patent Number
NASA-CR-185953
NAS 1.26:185953
Accession Number
90N26854
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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