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The WTC towers were the first structures outside of the military and the nuclear industries whose design considered the impact of a jet airliner, the Boeing 707. It was assumed in the 1960s design analysis for the WTC towers that an aircraft, lost in fog and seeking to land at a nearby airport, like the B-25 Mitchell bomber that struck the Empire State Building on July 28, 1945, might strike a WTC tower while low on fuel and at landing speeds.
Leslie Robertson, lead structural engineer of the WTC. According to his account the assumption was that the collision would be with a relatively slow-moving 707, lost in fog:
The two towers were the first structures outside of the military and nuclear industries designed to resist the impact of a jet airliner, the Boeing 707. It was assumed that the jetliner would be lost in the fog, seeking to land at JFK or at Newark.
The document indicating the 707 impact speed was indeed estimated to be 290 km/h (around 180 mph), which is much less than the “flight speeds of 470 to 590 mph upon impact” for the 9/11 attacks.
To the best of our knowledge, little was known about the effects of a fire from such an aircraft, and no designs were prepared for that circumstance. Indeed, at that time, no fireproofing systems were available to control the effects of such fires.
the towers did their job, they withstood the impact, had they not more would have died
Deduction, my dear Watson, just as the facts were absented from the reports.
oh please
the nut case kid Adam whateverlastname, who should have been committed, took his mothers weapons, killed her, then went on a rampage at a school killing over 20 people mostly kids.
what facts are left out
its just another nut case
Last edited by workingclasshero; 02-15-2014 at 10:48 PM..
Reason: grammar
the nut case kid Adam whateverlastname, who should have been committed, took his mothers weapons, killed her, then went on a rampage at a school killing over 20 people mostly kids.
what facts are left out
its just another nut case
Sometimes, absence is created by addition.
The shotgun was at two locations at the same time, which would require the bending of time.
Additive cancellation of fact.
There were too many perps running under the helicopter.
S
The shotgun was at two locations at the same time, which would require the bending of time.
huh
so the fact that on the DAY, stories get misconstrued , you make it to be a hoax
sorry pal..real kids died that day...you conspiracy nuts have zero caring about the victims..all you care about is your 15 minutes of fame , for saying 'that dont make sense'....even though it is logical
you conspiracy nuts really annoy me
Last edited by workingclasshero; 02-16-2014 at 01:06 AM..
62 pages of replies that were basically summed up in post 2.
To rig those buildings up for explosive demolition without any one knowing sounds totally implausible and pointless.
62 pages of replies that were basically summed up in post 2.
To rig those buildings up for explosive demolition without any one knowing sounds totally implausible and pointless.
Ever notice how most people only know what they are told to know, for their own good?
62 pages of replies that were basically summed up in post 2.
To rig those buildings up for explosive demolition without any one knowing sounds totally implausible and pointless.
Quote:
Originally Posted by T-310
Planes hit towers, towers came down.
End of story. Any other theory is reserved for idiots.
This statement contains a high absentee rate of fact.
Works fine for simpletons, though.
Liars, too, oftentimes enjoy absence; it somehow gets them "high".
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