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Abstract
The Crew Escape System of Human Spaceflight Programme (HSP) primarily consists of a set of quick acting solid motors which operates in a pre-defined sequence to provide required thrust to take the Crew Module along with the crew to a safe distance. Out of these, the two sets of Escape motors are designed such that these motors develop sufficient thrust to pull away the Crew Module from the launch pad if there is an explosion or occurrence of any undesired event at the launch pad or any contingency occurs during lift-off or if the flight deviates alarmingly from the nominal trajectory. The present paper discusses the grain design details of one of the Escape Motors, viz., the High altitude Escape Motor, its performance in two static tests and various performance parameters and factors used for performance analysis. The performance of this motor in the first Pad Abort Test (PAT-01) is also discussed.
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References
- "Solid Rocket Motor Performance Analysis and Prediction", NASA Space Vehicle Design Criteria (Chemical Propulsion), NASA SP-8039, May 1971.
- Coats, D. E., Nickerson, G. R., Dang, A. L. and Dunn, S. S., "Solid Performance Program (SPP)", AIAA Paper 87-1701, AIAA/SAE/ASME/ASEE 23rd Joint Propulsion Conference, June 29 July 1987, San Diego, California.
- Miller, W.H. and Barrington, D. K., "A Review of Contemporary Solid Rocket Motor Performance Prediction Techniques", Journal of Space Craft and Rockets, Vol.7, No.3, 1970, pp.225-237.
- Sutton, G.P., "Rocket Propulsion Elements", 6th Edition, 1922, Wiley, New York, NY, USA.
- Gordon, S. and McBride, B. I., "Computer Program for Calculation of Complex Chemical Equilibrium Compositions, Rocket Performance, Incident and Reflected Shocks, and Chapman- Jouguet Detonations", NASA SP 273, Interim Revision, Scientific and Technical Information Office, National Aeronautics and Space Administration, Washington, D.C, March 1976.
References
"Solid Rocket Motor Performance Analysis and Prediction", NASA Space Vehicle Design Criteria (Chemical Propulsion), NASA SP-8039, May 1971.
Coats, D. E., Nickerson, G. R., Dang, A. L. and Dunn, S. S., "Solid Performance Program (SPP)", AIAA Paper 87-1701, AIAA/SAE/ASME/ASEE 23rd Joint Propulsion Conference, June 29 July 1987, San Diego, California.
Miller, W.H. and Barrington, D. K., "A Review of Contemporary Solid Rocket Motor Performance Prediction Techniques", Journal of Space Craft and Rockets, Vol.7, No.3, 1970, pp.225-237.
Sutton, G.P., "Rocket Propulsion Elements", 6th Edition, 1922, Wiley, New York, NY, USA.
Gordon, S. and McBride, B. I., "Computer Program for Calculation of Complex Chemical Equilibrium Compositions, Rocket Performance, Incident and Reflected Shocks, and Chapman- Jouguet Detonations", NASA SP 273, Interim Revision, Scientific and Technical Information Office, National Aeronautics and Space Administration, Washington, D.C, March 1976.