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SpaceX failure cause latest
This week, SpaceX announced that the recent launch failure was most
likely caused by a failed strut holding the (a?) helium tank down. The helium tanks are submerged inside the oxygen tanks on Falcon 9, so they are actually buoyant. It failed at just over 3 g's, so it was actually three times as buoyant as it was when sitting on the ground. SpaceX reached the conclusion that a strut failed after testing thousands of them. http://nasawatch.com/archives/2015/0...-releases.html From above: There was no evidence of damage prior to launch from close-out photos. The struts are not made in-house. The supplier was not named. Musk said that they were able to replicate failure with 1000's of struts and they found a few that did not meet specifications. Jeff -- "the perennial claim that hypersonic airbreathing propulsion would magically make space launch cheaper is nonsense -- LOX is much cheaper than advanced airbreathing engines, and so are the tanks to put it in and the extra thrust to carry it." - Henry Spencer |
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SpaceX failure cause latest
"Jeff Findley" wrote in message
... This week, SpaceX announced that the recent launch failure was most likely caused by a failed strut holding the (a?) helium tank down. The helium tanks are submerged inside the oxygen tanks on Falcon 9, so they are actually buoyant. It failed at just over 3 g's, so it was actually three times as buoyant as it was when sitting on the ground. SpaceX reached the conclusion that a strut failed after testing thousands of them. http://nasawatch.com/archives/2015/0...-releases.html From above: There was no evidence of damage prior to launch from close-out photos. The struts are not made in-house. The supplier was not named. Musk said that they were able to replicate failure with 1000's of struts and they found a few that did not meet specifications. I had heard this, though not as much detail. I've got to say such a failure is actually rather disturbing. I have to wonder how many "a few" is. If 3 out of 3000 failed, that's a .3% failure. That's surprisingly high in my mind. -- Greg D. Moore http://greenmountainsoftware.wordpress.com/ CEO QuiCR: Quick, Crowdsourced Responses. http://www.quicr.net |
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