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This topic comprises 3 pages: 1 2 3
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Author
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Topic: Jet Crashing into Concrete Barrier
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Paul Mayer
Oh get out of it Melvin, before it pulls you under!
![](http://www.film-tech.com/ubbmembers/355b.jpg)
Posts: 3836
From: Albuquerque, NM
Registered: Feb 2000
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posted 10-05-2004 04:23 PM
Not to worry John. Though I intend to live forever (so far, so good), I still don't think I'll be around to check on that 10,000 year guarantee they want us to believe.
The part I especially don't buy is the amount of cooling that the underground facility will require for the entire time, to carry away the heat generated by all that "hot" (physically as well as radioactively) stored material. I suppose it will be the ultimate form of job security for generations of operating engineers, keeping after all those air handlers.
Scott, that crash test you wrote of happened at Edwards AFB, about four hours drive from here. Spectacular yes, but also a mostly failed experiment. Some footage of it was used in one of the IMAX films from that time. The main test was for a fuel additive (long string polymers) designed to keep jet fuel from forming explosive vapors until just before entering the engines. But the test pilot allowed an undamped Dutch Roll oscillation to develop just before touchdown, which put the aircraft into an unplanned position when it slid through the "rippers" that were positioned to slice open only the fuel tanks. Had it hit correctly, it would have been a chance to see if the additive worked, i.e. allowed the fuel to burn but not explode. As it turned out, the damage was too extensive in all the wrong places and they had a fireball anyway.
The cabin was full of instrumented crash dummies and cameras to record the post-crash conditions of a survivable crash landing. But the fuselage was badly compromised by the rippers due to the off-angle touchdown, resulting in deformations to the cabin that made the crash not so survivable. They still salvaged some good data out of all of it, but not as much as they wanted, nor what they planned for.
The aircraft would have eventually been chopped up and smelted anyway. It was (and I think still is) the world's largest RC flying model. ![[Smile]](smile.gif) [ 10-08-2004, 05:47 PM: Message edited by: Paul Mayer ]
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