Tailoff thrust and impulse imbalance between pairs of Space Shuttle solid rocket motors

Details Tailoff thrust and impulse imbalance between pairs of Space Shuttle solid rocket motors Tailoff thrust and impulse imbalance between pairs of Space Shuttle solid rocket motors

Sep 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975auep.confr....j&link_type=abstract

American Institute of Aeronautics and Astronautics and Society of Automotive Engineers, Propulsion Conference, 11th, Anaheim, Ca

Astronomy and Astrophysics

Astronomy

Flight Tests, Solid Propellant Rocket Engines, Space Shuttles, Statistical Analysis, Thrust Measurement, Titan Project, Data Correlation, Frequency Distribution, Impulses, Prediction Analysis Techniques, Scaling Laws

Scientific paper

The 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.

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