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Stephen Bluestone February 28, 2008 Propulsion Group Historic Solid Rocket Failure Probability. Historical Failure Probability. U.S. Solid Rocket Systems (Failures/Attempts) 6 / 412 (1.4%) Failures between 1980-2004 1 19 / 3382 (0.56%) Failures between 1964-1998 2
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Stephen BluestoneFebruary 28, 2008Propulsion Group Historic Solid Rocket Failure Probability AAE 450 Spring 2008
Historical Failure Probability • U.S. Solid Rocket Systems (Failures/Attempts) • 6 / 412 (1.4%) Failures between 1980-20041 • 19 / 3382 (0.56%) Failures between 1964-19982 • Solid Propulsion Failure Rates (Failures/Attempts) • Upper Stage 0.0161 161/10000 • Monolithic 0.0025 25/10000 • Segmented 0.0077 77/10000 • Total 0.0056 56/10000 AAE 450 Spring 2008 Propulsion – Propellants
Catastrophic Failure • Historically Solid Rocket failure results in catastrophic failure 37% of the time (19 solid failures, 7 were catastrophic) [1964-1998]1 • Solid Rocket Failure Rate (Failures/Attempts) • Failure 0.0056, 56/10000 • Catastrophic Failure 0.0021, 21/10000 • Working with Prop and whole team to finalize all designs and prop systems Future Work AAE 450 Spring 2008 Propulsion - Propellants
Chang, I-Shih., Tomei, Edmardo Joe., “Solid Rocket Failures in World Space Launches.” AIAA Paper 2005-3793, Joint Propulsion Conference and Exhibit, 41st, Tuscon, Az, July 10-13, 2005 Sauvageu, Donald R., Allen, Brian D., “Launch Vehicle Historical Reliability.” AIAA-1998-3979 AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 34th, Cleveland, OH, July 13-15, 1998 References AAE 450 Spring 2008
Reference 2 is based off a study of the following U.S. solid rocket launch systems included • Taurus • Conestoga • Athena • Minotaur • Pegasus • Scout