Word: boosterism
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...changes, none was more carefully scrutinized than the redesign of what proved to be Challenger's fatal flaw: the joint between segments of the solid-fuel rocket booster. Zeroing in on the booster joints, which are sealed by rubber O rings that are supposed to prevent leaks of superhot gas from the burning fuel, a team composed of outside experts as well as specialists from NASA and Morton Thiokol, manufacturer of the rocket, evolved a design that eventually withstood five full-scale, two-minute stationary firing tests at Thiokol's Utah proving grounds...
Just how well the Discovery's booster rocketsperformed in their new design awaited detailedanalysis. But J.R. Thompson, who directed the workfrom the Marshall Space Flight Center in Alabamasaid, "From everything I see, everything looksgreat...
Anxiety was highest as the ship went through a30-second period of severe aerodynamic stress. Itwas during this stage of the flight that one ofChallenger's booster rockets failed and triggeredthe January 28, 1986 catastrophe, 73 seconds afterlift...
...shuttle booster rockets, blamed for the Challenger tragedy, have undergone an $800 million redesign...
...with a booster rocket being readied for a twin of the Tracking and Data Relay Satellite the Discovery crew is to launch six hours after liftoff. A cut on a small sealing O-ring on the booster rocket, destined for flight next February, was found to have a tiny cut -- apparently caused by a metal burr...