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Leslie Robertson, direct quote:
One week before 9/11, WTC building designer Leslie Robertson reiterated the fact that the towers were designed to survive plane crashes:
“[color=gold]Leslie Robertson, one of the two original structural engineers for the World Trade Center, is asked at a conference in Frankfurt, Germany what he had done to protect the twin towers from terrorist attacks. He replies, ‘I designed it for a 707 to smash into it,’ though does not elaborate further.”[23]
Also according to Robertson, the WTC towers were “in fact the first structures outside the military and nuclear industries designed to resist the impact of a jet airplane.”[24]
Not only were the towers designed to survive plane crashes, they were designed to potentially [color=gold]survive multiple plane crashes. This fact is supported by Frank A. Demartini, the on-site construction manager for the World Trade Center, who said on January 25, 2001:
“[color=gold]The building was designed to have a fully loaded 707 crash into it. That was the largest plane at the time. I believe that the building probably could sustain multiple impacts of jetliners because this structure is like the mosquito netting on your screen door—this intense grid—and the jet plane is just a pencil puncturing that screen netting. It really does nothing to the screen netting.”[25]
Originally posted by L1U2C3I4F5E6R
Originally posted by GenRadek
reply to post by kiwifoot
Why did there have to be explosives in there to bring them down? Why couldnt it have just been massive structural failure from impact and fires, combined with gravity? After all, there seemed to be more than enough potential energy in those towers to have them collapse as they did. .
There seems to be quite a lot of evidence that Structural Integrity failure could of brought the towers down.
Here is a fact some truthers do not know OR choose to ignore.
The WTC buildings were only designed to take the impacts from one Boeing 707 to each building at the time of completion in 1974. They weren't designed to take the impacts of a Boeing 757 and a 767, which were much larger, faster and carried more fuel loads than the Boeing 707. The WTC buildings could take multiple impacts from smaller lightweight planes, but never multiple impacts from Boeing's 707s, 757s and 767s.
"The building was design to have a fully loaded 707 crash into it, that was the largest plane at the time. I believe that, the building properly could sustain multiple impacts of jetliners because this structure is like the mosquito netting on your screen door. This intents grid and the jetplane is just a pencil puncture that screen neating, it really does nothing to the screen netting." - FRANK A. DEMARTINI
Originally posted by impressme
reply to post by waypastvne
That is completely untrue, where is Leslie Robertson quote?? “ “ There are none!
Originally posted by waypastvne
Originally posted by impressme
reply to post by waypastvne
That is completely untrue, where is Leslie Robertson quote?? “ “ There are none!
Click this link and you can watch the words come out of his mouth.
www.bbc.co.uk...
Is that good enough for you or do you still need the quotation marks. I can edit them in if you want.
Originally posted by waypastvne
reply to post by MilzGatez
Go out side and look up in the sky the video has been converted in to smoke signals. hurry its a short video.
Originally posted by MilzGatez
see I'll helped you on your way to enlightenment and awareness.
According to Jim Hoffman, the planes used on 9/11 were “only slightly larger than 707s and DC 8s, the types of jetliners whose impacts the World Trade Center's designers anticipated.”[11] This statement is supported by the following chart:
Boeing 707-340
Boeing 767-200
fuel capacity
23,000 gallons
23,980 gallons
max takeoff weight
328,060 lbs
395,000 lbs
empty weight
137,562 lbs
179,080 lbs
Wingspan
145.75 ft
156.08 ft
wing area
3010 ft^2
3050 ft^2
Length
152.92 ft
159.17 ft
cruise speed
607 mph
530 mph
In fact, Hoffman observes that “a 707 in normal flight would actually have more kinetic energy than a 767, despite the slightly smaller size.”[13]
Commercial airliners typically fly with jet fuel, so it is not surprising that the designers would consider this problem. In 1993, Skilling explained that they performed an analysis that concluded that the WTC towers would survive the impact and jet fuel fires from a Boeing 707:
“[color=gold]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 building structure would still be there.”[14]
What is the probability of 3 perfect demolitions on 3 buildings in the same day when nothing near the height of those buildings had ever been imploded in a controlled demolition in HISTORY. EVER. NEVER.
The TWIN towers are 1368 FT TALL. 110 stories and 3.12 times higher than anything else ever attempted in HISTORY. FACT.
----
So are we saying that on that fateful day of 9/11 all three of the WTC's that fell were so perfect even though it has been done before. ITS too perfect and the chances of three perfect demolitions of that size when NEVER been done before is astronomical.
Right, lets put this to bed once and for all.
Originally posted by starless and bible black
I think it's pretty obvious that lucifer 123456 is playing a role, yes? There's a new wave of new members doing the same thing. I cannot believe that the real members are taking the bait.
Originally posted by L1U2C3I4F5E6R
What Im saying people is that CD would be highly improbable.
I did not mention in THIS thread that two planes brought down 3 buildings. READ.
I am saying that this scenario is not that possible.
I am just saying that CD explosives were NOT used. Truthers are still walking around saying Explosives were used to bring down the buildings and that a CD company was used.
Those with their sarcasm, are just a bit to dim to look at this for themselves and need to follow everyone else.
FIREFIGHTER WILLIAM REYNOLDS
WTC2- large explosion below plane impact area before the collapse
After a while, I was distracted by a large explosion from the south tower and it seemed like fire was shooting out a couple of hundred feet in each direction, then all of a sudden the top of the tower started coming down in a pancake. I remember my jaw dropping and just staring at it and Richard Banaciski, one of the firemen that was there, yelled "Run" and I turned and I started running into the parking garage of the Financial Center.
Q. Bill, just one question. The fire that you saw, where was the fire? Like up at the upper levels where it started collapsing?
A. It appeared somewhere below that. Maybe twenty floors below the impact area of the plane. I saw it as fire and when I looked at it on television afterwards, it doesn't appear to show the fire. It shows a rush of smoke coming out below the area of the plane impact.
The reason why I think the cameras didn't get that image is because they were a far distance away and maybe I saw the bottom side where the plane was and the smoke was up above it.
Edward Cachia FDNY WTC2 explosions before collapse
As my officer and I were looking at the south tower, it just gave. It actually gave at a
lower floor, not the floor where the plane hit, because we originally had thought there was like an internal detonation explosives because it went in succession, boom, boom, boom, boom, and then the tower came down.
Stephen Gregory , Assistant Commissioner (F.D.N.Y.) flashes, explosions p 14
I know I was with an officer from Ladder 146, a Lieutenant Evangelista, who ultimately called me up a couple of days later just to find out how I was. We both for whatever reason -- again, I don't know how valid this is with everything that was going on at that particular point in time, but for some reason I thought that when I looked in the direction of the Trade Center before it came down, before No. 2 came down, that I saw low-level flashes. In my conversation with Lieutenant Evangelista, never mentioning this to him, he questioned me and asked me if I saw low-level flashes in front of the building, and I agreed with him because I thought -- at that time I didn't know what it was. I mean, it could have been as a result of the building collapsing, things exploding, but I saw a flash flash flash and then it looked like the building came down.
Q. Was that on the lower level of the building or up where the fire was?
A. No, the lower level of the building. You know like when they demolish a building, how when they blow up a building, when it falls down? That's what I thought I saw. And I didn't broach the topic to him, but he asked me. He said I don't know if I'm crazy,
(Strangely, he talks about West Street, where he saw airplane parts, but nobody, and was wondering, no firefighters or civilians, that they probably must be on the Promenade side)then he says:
... I saw airplane parts on West Street.
... It looked like pieces of a plane, skin of a plane. I mean, they weren't really discernible. I couldn't say this was this part of a plane or that was that part. Just knowing a plane had hit the building and I looked and I saw it looked like the skin off a wing or a fuselage or wherever it came from.
... I was listening to the tape this morning of the people calling up and they were describing the plane that hit the building. Actually, so many people saw it. They actually described the plane as it came in. They said it was a military-type plane and it was green and it was this. I mean, I never saw the color of the plane.
Originally posted by drock905
I have many problems with the CD theory. From reading evidence I believe that the structural damage for the impact and the resulting fires was enough to start the collapse.
In this picture you can see the trusses buckling
In this photo you can clearly see the building buckling at the point of failure
As for wtc 7 here are pics of a massive amount of debris raining down on it
The resulting debris field
No point wasting your time with the pictures my friend they are also blind.