Friday, September 21, 2007

Re: FURTHER ON WTC

Chris,

Well put, Chris.

Regards,

H. Daryl Richardson

----- Original Message -----
From: "Christopher Wright" <chrisw@skypoint.com>
To: <seaint@seaint.org>
Sent: Friday, September 21, 2007 10:47 AM
Subject: Re: FURTHER ON WTC


>
> On Sep 21, 2007, at 11:09 AM, Gerard Madden, SE wrote:
>
>> People can second guess the truss connections all they want, but
>> the fact is they are gravity connections and performed fine up
>> until they were asked to do something unintended.
>>
>> Can a sprinkler system be expected to put out a fire like that and
>> save the building? No. Was the facade supposed to shred up the
>> airplane and withstand blast pressures? No.
>>
>> Simple as that.
> Not quite that simple, especially if the questions are posed to learn
> something, rather than sharp-shoot the design. Sharp-shooting is bad
> all around as are phrases like 'moral corruption,' because they don't
> contribute anything worthwhile.
>
> A worthwhile effort would begin by contrasting the 9/11 attacks with
> the B-25 crash into the Empire State building in which the building
> remained standing and the toll was 14 dead. The episodes differed
> greatly in matters of fire safety, the nature of the aircraft and
> building structure. I'd think that somewhere between those two
> episodes there's a point where building design can be improved to
> withstand accidents of the sort. There's no reason to believe that an
> airplane couldn't hit another tall building, even by accident, and
> it's worthwhile considering corrective measures. But just calling a
> designer morally corrupt and blaming a lot of people without
> presenting firm evidence is just whiney and demeaning.
>
> Christopher Wright P.E. |"They couldn't hit an elephant at
> chrisw@skypoint.com | this distance" (last words of Gen.
> .......................................| John Sedgwick, Spotsylvania
> 1864)
> http://www.skypoint.com/~chrisw/
>
>
>
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