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Mar 31, 2009, 12:12 PM
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The SSME guy took 15 minutes to finish a sentence

He rambled a lot about management styles & project planning. That's what software is for nowadays.

The SSME was tested to destruction. That's why it's never failed, so far. No other part of the shuttle was tested to destruction, so the rest of it has had problems as managers speculate on the lethal conditions.

The turbine blades & the bearings crack in every flight & R reused after cracking. They couldn't get them to stop cracking, so instead of fixing the problem, they tested to destruction to know when the cracks were lethal & told the astronauts they were riding cracked blades.

Unfortunately, it's real expensive to test to destruction. U ever blow up a bag of LiPo's to figure out what their true C rating is?

The A1 test stand has no roof. They can't fix an engine if it's raining. The 1 time they put a roof on it, it trapped pure O2 from a leaky valve & made all the wires on the test stand burst into flames when the engine started.

He thinks NASA should have continued improving & testing the shuttle after 2003 as if it wasn't being phased out. Now there R no more improvements, the experts have left the program, & you're flying extension after extension on a vehicle which is no longer tested.

He thinks NASA emphasized pushing the limit of technology too much & should have derated the performance to increase margin. The shuttle was no more dangerous than any other system, if its performance was reduced.

NASA can keep making new vehicles all it wants & they'll be just as dangerous as the shuttle. By pushing the limits of performance & not testing components to destruction, they'll make Ares-1 just as problematic & expensive.
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