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  • 1. TRUTH, LIES AND O-RINGS: INSIDE THE SPACE SHUTTLE CHALLENGER DISASTER Presented by : Allan J. McDonald Aerospace Consultant & Author ATK Thiokol (Retired) Former Director Space Shuttle SRM Project :
  • 2. TWO LOST SPACE SHUTTLES STS-51L Challenger Launch: January 28, 1986 Time: 16:38 GMT STS-107 Columbia Launch: January 16, 2003 Time: 15:39 GMT
  • 3. PRE-LAUNCH ICE ON PAD
  • 4. FIRST EVIDENCE OF JOINT LEAK Leak at T + 0.678 Seconds LIFTOFF
  • 5. JOINT LEAK REOPENS IN FLIGHT Joint Leak Restarts T + 59 Seconds Joint Plume Visible T + 60 Seconds MAXIMUM DYNAMIC PRESSURE AND WIND SHEAR
  • 6. T PLUS 78 SECONDS: DEBRIS Orbiter Wing SSME Pod Crew Cabin Recovered RH SRB Aft Field Joint
  • 7. DUPLICATION OF CHALLENGER JOINT FAILURE <ul><li>LIFTOFF @ T+0.678 sec. JES-1B TEST @ T+0.600 sec. </li></ul><ul><li>(T+0.600 sec.) </li></ul>
  • 8. PREMONITION OF COLUMBIA 2003 <ul><li>STS-26R return to flight with Discovery : a debris wake-up call (September 1988) </li></ul><ul><li>STS-27R Atlantis : a scary ascent and return (December 1988) </li></ul>
  • 9. COLUMBIA ACCIDENT & VERIFICATION February 1, 2003 Approx. 9:00 a.m. EST Columbia Debris During Re-entry Bi-Pod Ramp Foam Impact Test on RCC
  • 10. STS-51L AND STS-107 CREW Lest We Forget!
  • 11. <ul><li>BOOK PUBLISHED BY THE UNIVERSITY PRESS OF FLORIDA – MARCH 2009 </li></ul>
  • 12. BOOK THEME <ul><li>While the underlying content surrounds “rocket science,” it’s a story that chronicles the events, activities, and decisions surrounding a major historical event in U.S. history. The book contains information about: </li></ul><ul><ul><ul><ul><ul><li>Politics </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>Whistle-blowing and retribution </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>Space science history </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>Tragedy </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>Colossal failures </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>Values, professional ethics, and integrity </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>Bureaucratic cover-up </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>Perseverance and dedication </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>Recovery and rewards </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>Lessons learned but forgotten </li></ul></ul></ul></ul></ul>

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