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Legend [19670]
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CU Medallion [67266]
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A permanent camera platform in the water, pretty cool.
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Apr 17, 2023, 9:16 AM
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The guvmint seemed to really make him base this thing out in West Nowhere, due to expected growing pains mishaps, I guess.
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Heisman Winner [137895]
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Re: Space X Starship is launching in the next 48 hours
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Apr 17, 2023, 9:18 AM
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poot
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All-In [41521]
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Re: Space X Starship is launching in the next 20 minutes
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Apr 17, 2023, 9:19 AM
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The launch is going to be scrubbed at 00:10.
They have an issue.
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CU Medallion [67266]
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Some kind of frozenated fueling valve. Reminds me of the
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Apr 17, 2023, 10:05 AM
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chemical plant. You can have all the high powered compooter automation you want, with some GREAT programming, and it won't amount to DIDDLEY SQUAT (Per Matt Foley) if the valve don't open (or close!) when it is supposed to!
ps,
Some old NASA engineer is cackling somewhere right now, saying, "We learned about that chit YEARS ago. But, we ain't sharing."
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Orange Blooded [3456]
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Like the Challenger
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Apr 17, 2023, 10:17 AM
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Blew up because of a bad o-ring. It's always the little things.
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CU Medallion [67266]
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It was not really the O-rings fault. Or, it was, but the
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Apr 17, 2023, 10:33 AM
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actual blame lies more with the decisions that were made that day, as well as previous to that day.
Per my best sleuthing, the O-rings on the solid rocket boosters were made of Viton at the time. Viton is a very good elastomer, made by your friends at DuPont. But, like any other material, it has limitations. One of those was becoming non-elastic at low temperatures, exactly like the ones that were experienced on the morning of January 28, 1986. So, the angst that was portrayed in the movie about the disaster, when NASA pressured Morton Thiokol engineers about whether or not to launch, was real.
But, that is not the whole story. DuPont also makes another elastomer, named Kalrez, which was available at the time, although quite a bit more expensive than Viton. It had much better cold weather properties than Viton, when it came to retaining elasticity required to maintain a seal at the joints that failed. Although more expensive, for a multibillion dollar program like the Space Shuttle, it would have been less than a drop in the bucket. Would it have averted the disaster? A haunting question that will never be answered, but my educated guess would be yes.
Of course, as seems to always happen following a disaster in the space program, old records were dug up which showed partial O-ring failures on previous launches as well, but none to the extent, obviously, of what occurred that frigid day. It was just one of the times when NASA failed to heed warning signs, that ultimately cost astronauts their lives. The conquest of space comes at a high cost, and I don't mean money.
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CU Guru [1954]
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Re: Space X Starship is launching in the next 20 minutes
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Apr 17, 2023, 10:49 AM
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Spaceship on the heels of Crew Dragon is some fine rocket naming.
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Hall of Famer [20141]
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Re: Space X Starship is launching in the next 20 minutes
Apr 17, 2023, 12:04 PM
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Next earliest possible attempt will be
Went/Stay
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