Leslie Robertson: “One of my jobs was to look at all of the possible events that might take place in a highrise building. And of course there had been in New York two incidences of aircraft impact, the most famous one of course being on the Empire State Building. Now, we were looking at an aircraft not unlike the Mitchell bomber that ran into the Empire State Building. We were looking at aircraft that was lost in the fog, trying to land. It was a low-flying, slow-flying 707, which was the largest aircraft of its time. And so we made calculations, not anywhere near the level of sophistication that we could today. But inside of our ability, we made calculations of what happened when the airplane goes in and it takes out a huge section of the outside wall of the building. And we concluded that it would stand. It would suffer but it would stand. And the outside wall would have a big hole in it, and the building would be in place. What we didn't look at is what happens to all that fuel. And perhaps we could be faulted for that, for not doing so. But for whatever reason we didn't look at that question of what would happen to the fuel.”

http://www.pbs.org/wgbh/amex/newyork/filmmore/pt.html

Frank DeMartini, from the upper floors shortly before he was killed in the collapse of WTC 1:
"Construction manager to base, be advised that the express elevators are in danger of collapse. Do you read?"

"Relay, that, Chris, to the firemen that the elevators — "

"Express elevators are going to collapse."

He did not give his location, but Gerry Drohan, a colleague who was outside the building, said he also had a radio conversation with Mr. De Martini about the conditions on the 78th floor. Mr. De Martini wanted structural engineers brought up to the floor to look at steel, Mr. Drohan said, but police officers would not let them back into the building.

http://www.mishalov.com/wtc_portauthoritytranscrip.html

Your own quote by engineer Leslie Robertson says" But inside of our ability, we made calculations of what happened when the airplane goes in and it takes out a huge section of the outside wall of the building. AND WE CONCLUDED THAT IT WOULD STAND."

The fact that he mentions not looking at what happened to the fuel is contradicted by head structural engineer John Skilling - "Our analysis indicated the biggest problem would be the fact that all the fuel (from the airplane) would dump into the building. There would be a horrendous fire. A lot of people would be killed, ... THE BUILIDNG STRUCTURE WOULD STILL BE THERE."

In your previous post you claimed that "They were no more “specifically” designed to withstand the impact of a jet airliner as they were specifically designed to withstand the impact of a runaway steam train." Why did you lie? Was it intentional? Are you just misinformed and making reckless remarks?

Also, DeMartini's claim that an elevator would collapse does not imply the entire building would explode into dust and molten metal. Where did that energy come from? Although you and I might be able to visualize the question, we're not qualified to answer it with the needed authority. The U.S. government should be settling this question. They are the ones with the access and authority to calm people's fears. Unfortunately they can't be trusted to do this as we can see from the 9/11 Commission fiasco. The movie 9/11 Press for Truth examines how they misled the investigation and overlooked key evidence. What are they hiding? Shouldn't we be concerned? Someone should! An empire that covers up this crime and uses it to justify wars of conquest will eventually threaten the entire world. I urge everybody to please visit 911research.wtc7.net and read up on the evidence.

“Still, he recalls that he addressed the question of an airplane collision, if only to satisfy his engineer's curiosity. For whatever reason, Robertson took the time to calculate how well his towers would handle the impact from a Boeing 707, the largest jetliner in service at the time. He says that his calculations assumed a plane lost in a fog while searching for an airport at relatively low speed, like the B-25 bomber. He concluded that the towers would remain standing despite the force of the impact and the hole it would punch out. The new technologies he had installed after the motion experiments and wind-tunnel work had created a structure more than strong enough to withstand such a blow. Exactly how Robertson performed these calculations is apparently lost -- he says he cannot find a copy of the report. Several engineers who worked with him at the time, including the director of his computer department, say they have no recollection of ever seeing the study. But the Port Authority, eager to mount a counterattack against Wien, seized on the results -- and may in fact have exaggerated them. One architect working for the Port Authority issued a statement to the press, covered in a prominent article in The Times, explaining that Robertson's study proved that the towers could withstand the impact of a jetliner moving at 600 miles an hour. That was perhaps three times the speed that Robertson had considered.”

http://scott-juris.blogspot.com/The%20Height%20of%20Ambition%20Part%20Four.pdf

Please note that the buildings DID withstand the impact of the planes.

They probably would have withstood the fires ALONE.

They could not withstand BOTH. There is no way anyone could have possibly designed for that.

DeMartini was talking about the elevator hoistways IN THE CORE.

The energy that drove the collapse is the oldest and most powerful one in the universe. GRAVITY!

Given the posting limitations here, I doubt I will pursue this any more with you. Let’s just agree to disagree.

I know I said that I was going to walk away from this thread, but I found this site that I thought I would share with you.

http://911-engineers.blogspot.com/2007/06/some-journal-papers-about-wtc-on-911.html

Interesting that an anonymous little mouse should be so informative.

It seems a lot of people have their opinion on conspiracy theories, post about them here:

http://a.parsons.edu/~tiffanywu/fall07/corestudio1/projects/post911

This website is a school project and a work in progress. There are a few articles that you can post your opinions on or rate currently, but more will be added soon.