";s:4:"text";s:2974:" 1976 - NASA accepts Morton-Thiokol's booster design. Morton Thiokol Engineer who in 1988 received the AAAS Award for Scientific Freedom and Responsibility for his efforts to avert the Challenger disaster. Key Dates. 1974 - Morton-Thiokol awarded contract to build solid rocket boosters. 1976 - NASA accepts Morton-Thiokol's booster design. D.M. Roger Boisjoly was a booster rocket engineer at NASA contractor Morton Thiokol in Utah in January, 1986, when he and four colleagues became embroiled … During NASA Langley's October Colloquium, Allan McDonald, a skilled engineer and executive, relives the Challenger tragedy from where he stood at the Launch Control Center. 1977 - Morton-Thiokol discovers joint rotation problem. The aftermath of the crash brought “a lot of panic” among Morton Thiokol’s management, one engineer said. Six months before the Challenger disaster, one Morton-Thiokol engineer wrote a memo urging that all shuttle flights cease until questions about O-ring performance could be resolved. Ketner D.M. Roger Boisjoly had …
He came to believe that he and Ebeling and their colleagues did … Six months before the Challenger disaster, one Morton-Thiokol engineer wrote a memo urging that all shuttle flights cease until questions about O-ring performance could be resolved. Roger Boisjoly had been elected Mayor of his town, Willard, Utah, in 1982. Joe Kilminster - Engineer in a management position Jerald Mason - Senior executive who encouraged Lund to reassess his decision not to launch. Roger Boisjoly - Engineer who worked under McDonald Joe Kilminster - Engineer in a management position Jerald Mason - Senior executive who encouraged Lund to reassess his decision not to launch.
Thiokol (variously Thiokol Chemical Corporation, Morton-Thiokol Inc., Cordant Technologies Inc., Thiokol Propulsion, AIC Group, ATK Thiokol, ATK Launch Systems Group; finally Orbital ATK before becoming part of Northrop Grumman) was an American corporation concerned initially with rubber and related chemicals, and later with rocket and missile propulsion systems. The flight was preceded by a 100-year cold, weather we could expect in Florida only once every 100 years, and although the temperature at launch was 66 °F, Roger Boisjoly, an engineer at Morton Thiokol, suspected that cold temperature might have affected the Viton, making the rings less flexible and thus less likely to seal or seal quickly enough to prevent blow-by.