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Tailoff thrust and impulse imbalance between pairs of Space Shuttle solid rocket motorsThe tailoff thrust and impulse imbalance between pairs of solid rocket motors is of particular interest for the Space Shuttle Vehicle because of the potential control problems that exist with this asymmetric configuration. Although a similar arrangement of solid rocket motors was utilized for the Titan Program, they produced less than one-half the thrust level of the Space Shuttle at web action time, and the overall vehicle was symmetric. Since the Titan Program does provide the most applicable actual test data, 23 flight pairs were analyzed to determine the actual tailoff thrust and impulse imbalance experienced. The results were scaled up using the predicted web action time thrust and tailoff time to arrive at values for the Space Shuttle. These values were then statistically treated to obtain a prediction of the maximum imbalance one could expect to experience during the Shuttle Program.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Jacobs, E. P.
(NASA Marshall Space Flight Center Huntsville, Ala., United States)
Yeager, J. M.
(Teledyne, Inc. Teledyne Brown Engineering, Huntsville, Ala., United States)
Date Acquired
August 8, 2013
Publication Date
September 1, 1975
Subject Category
Launch Vehicles And Space Vehicles
Report/Patent Number
AIAA PAPER 75-1171
Accession Number
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