Subject:
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Re: My Prayer on this National Day of Prayer
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Newsgroups:
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lugnet.off-topic.debate
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Date:
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Sat, 15 Sep 2001 00:31:28 GMT
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Viewed:
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752 times
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In lugnet.off-topic.debate, Thomas (T. J.) Avery writes:
> I believe the WTC towers were designed to handle the impact of a 707. I'm
> sure this extra design criteria helped, but unfortunatly it wasn't enough.
I acknowledge this is a morbid line to go down, but.. I'm fairly sure that
if the planes had had dry tanks instead of full transcontinental loads of
Jet-A, the towers would still be standing... the impacts didn't do enough
damage to cause the collapse, it was the melting of the structural steel
that caused it. Steel melts (and concrete fractures/pulverises) well below
the temp that Jet-A burns at, at least that's my understanding.
I don't know that there is any possible change away from Jet-A... there has
been talk of developing a fuel that is a jelly and not flammable until you
need to actually use it, but I don't know how realistic that is.
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Message is in Reply To:
 | | Re: My Prayer on this National Day of Prayer
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| (...) It is amazing that the towers didn't collapse right away, and things could have certainly been much worse. As an engineer, I'll be interested in future reports that will discuss modes of failure. Typically, building design adheres strictly to (...) (23 years ago, 14-Sep-01, to lugnet.off-topic.debate)
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