It was calculated early on that 2 Space Shuttles would probably be lost over the be lost over the life of the program. Unfortunately both losses were arguably avoidable. The O rings and tank insulation were known to be problematic, but the NASA bureaucracy wrote off both as too expensive to fix.
It was calculated early on that 2 Space Shuttles would probably be lost over the be lost over the life of the program. Unfortunately both losses were arguably avoidable. The O rings and tank insulation were known to be problematic, but the NASA bureaucracy wrote off both as too expensive to fix.