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Perhaps it would have been better to say that fuel isn't the only reason. The Airbus A320 in this example has roughly 55% better fuel efficiency than a pre oil crisis Boeing 707, although as Jimbo's big bag'o'trivia points out, that's barely better than the 1950s era prop planes like the Douglas DC-7.

Better automation has also allowed the A320 to reduce the staffing requirements, the 707 required 3 or 4 crew to operate the aircraft, but the A320 only requires 2. The DC-7 also requires 3 crew, but only seats half the passengers (doubling the flight crew costs per passenger).

Greater competition is probably a larger factor. Talking about airline profitability and competition, Warren Buffett joked that had a farsighted capitalist had been present at Kitty Hawk for the Wright Brothers' first flight, he would have done his successors a huge favor by shooting Orville down.

Congratulations! Your dedication to keeping VideoSift clear of baddies has earned you your "Ban Police" Level 707 Badge!

The thumbnail image for this video has been updated - thumbnail added by oritteropo.

yes, yes, bat shit insanity and conjecture will end any argument on the internet. you win, oh righteous one. i'm the miserable, terrified twat. i'll shake in fear with all my womanly sin until the all might god smites me proper on judgement day. amen. >> ^shinyblurry:

This thread is just full of discretion and common sense. <rolls eyes> Listen, it's clear that you're filled with anger at God and bitterness about your life. It is fairly emenating from you. Since you're spoiling for a fight with me I'll just lay it out for you. The reason bad things happen is because this is a fallen world. We're all sinners and we all deserve hell and nothing more. You seem to think you're owed something because bad things happened to you, but God isn't your debtor. He is your judge. He is merciful towards you because He desires your repentance, but if you refuse to repent of your sins and submit to His authority then you're going to end up in hell. Your self-righteousness doesn't justify you before a Holy God, it condemns you.
>> ^peggedbea:
oh, i didn't imply that the goal of the video wasn't to garner the creator attention. i implied that the goal of the video wasn't for SEXUAL attention.
once again, you storm into a topic as a moral crusader and come out the other end as an ignorant, judgmental twat.
maybe you can't look at a boob without getting an inappropriate boner, but don't assume the rest of us can't use discretion and common sense like adults.
oh and @ForgedReality you're being such a raging douchebag, it just inspired me to text my boyfriend and thank him for not being a fucking douchebag. i'm sorry for the woman who has to have sex with your judgmental, immature, passive aggressive, socially stunted ass. in my head i just decided you were 16 so that we can at least all have hope that one day you will grow out of it. >> ^shinyblurry:
Yes, showing off your breasts in public isn't a cheap ploy for attention. That makes sense.
>> ^peggedbea:
i'm pretty sure that wasn't the goal. it was a funny, silly, stupid thing she can do with her enormous boob. i, for one, am impressed. my stupid average size boobs cant do tricks like that.
just because there are boobs in a video, doesn't mean they're there to impress men. that isn't our main function, desire, aspiration. once again, get over your self. >> ^shinyblurry:
So you approve of this? Do you feel that women should degrade themselves to get the approval of men?
>> ^peggedbea:
and as for you, give it a rest. go stand out the strip club and save souls there. or foam at the mouth screaming at whores at the abortion clinic if your so concerned with womankind and our dainty little souls. >> ^shinyblurry:
@UsesProzac Do you have even a modicum of dignity or self respect? You have promoted yourself as a harlot and you draw mens attention with lasciviousness. You are prostituting yourself and it is revolting.

This thread is just full of discretion and common sense. <rolls eyes> Listen, it's clear that you're filled with anger at God and bitterness about your life. It is fairly emenating from you. Since you're spoiling for a fight with me I'll just lay it out for you. The reason bad things happen is because this is a fallen world. We're all sinners and we all deserve hell and nothing more. You seem to think you're owed something because bad things happened to you, but God isn't your debtor. He is your judge. He is merciful towards you because He desires your repentance, but if you refuse to repent of your sins and submit to His authority then you're going to end up in hell. Your self-righteousness doesn't justify you before a Holy God, it condemns you.

>> ^peggedbea:
oh, i didn't imply that the goal of the video wasn't to garner the creator attention. i implied that the goal of the video wasn't for SEXUAL attention.
once again, you storm into a topic as a moral crusader and come out the other end as an ignorant, judgmental twat.
maybe you can't look at a boob without getting an inappropriate boner, but don't assume the rest of us can't use discretion and common sense like adults.
oh and @ForgedReality you're being such a raging douchebag, it just inspired me to text my boyfriend and thank him for not being a fucking douchebag. i'm sorry for the woman who has to have sex with your judgmental, immature, passive aggressive, socially stunted ass. in my head i just decided you were 16 so that we can at least all have hope that one day you will grow out of it. >> ^shinyblurry:
Yes, showing off your breasts in public isn't a cheap ploy for attention. That makes sense.
>> ^peggedbea:
i'm pretty sure that wasn't the goal. it was a funny, silly, stupid thing she can do with her enormous boob. i, for one, am impressed. my stupid average size boobs cant do tricks like that.
just because there are boobs in a video, doesn't mean they're there to impress men. that isn't our main function, desire, aspiration. once again, get over your self. >> ^shinyblurry:
So you approve of this? Do you feel that women should degrade themselves to get the approval of men?
>> ^peggedbea:
and as for you, give it a rest. go stand out the strip club and save souls there. or foam at the mouth screaming at whores at the abortion clinic if your so concerned with womankind and our dainty little souls. >> ^shinyblurry:
@UsesProzac Do you have even a modicum of dignity or self respect? You have promoted yourself as a harlot and you draw mens attention with lasciviousness. You are prostituting yourself and it is revolting.

Flight test pilots have an amazing amount of courage and certainly earn my respect:

Here are some videos of the legendary Tex Johnson:

Tex Johnson rolls a Boeing 707

Tex Johnson on test pilots

>> ^bcglorf:

>> ^Duckman33:
>> ^bcglorf:
>> ^Duckman33:
>> ^bcglorf:
I'm saying they tested for scenarios such as jets with full fuel loads smashing into the towers when they designed them. And provided quotes from the actual engineers stating that fact.
Do you realize that your quotes from those engineers are from long BEFORE the attacks on the towers?
Do you realize that NONE of those engineers have come forward to condemn or rebuke the official story of the collapse?


Really? Again:
Statements by Engineers
"Engineers who participated in the design of the World Trade Center have stated, since the attack, that the Towers were designed to withstand jetliner collisions. For example, Leslie Robertson, who is featured on many documentaries about the attack, said he "designed it for a (Boeing) 707 to hit it." 2 Statements and documents predating the attack indicate that engineers considered the effects of not only of jetliner impacts, but also of ensuing fires."
Frank Demartini's Statement
Frank A. Demartini, on-site construction manager for the World Trade Center, spoke of the resilience of the towers in an interview recorded on January 25, 2001.
"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."

Demartini, who had an office on the 88th floor of the North Tower, has been missing since the 9/11/01 attack, having remained in the North Tower to assist in the evacuation. 6 Demartini had first worked at World Trade Center when Leslie E. Robertson Associates hired him to assess damage from the truck bombing in 1993.
Are you now saying that their testing (and the resulting 1200 page report) was not good enough or incorrect as well? I suppose you have facts to back this up?
Also, I love the way you guys gloss over the fact that everyone keeps talking about how much smaller, slower, and how much less fuel the jets they used for testing were compared to the jets that hit WTC 1&2 is not factually correct.

Go read for yourself what Leslie E. Robertson, the engineer who designed the towers and hired Demartini had to say afterwards. The full source is here but here's a quote:
We had designed the project for the impact of the largest airplane of its time, the Boeing 707. The 767 that actually hit the WTC was quite another matter again. First of all it was a bit heavier than the 707, not very much heavier, but a bit heavier. But mostly it was flying a lot faster. And the energy that it put into the building is proportional to its square of the velocity, as you double the velocity, four times the energy. Triple the velocity, eight times the energy and so forth.
And then of course with the 707 to the best of my knowledge the fuel load was not considered in the design, and indeed I don't know how it could have been considered. But, and with the 767 the fuel load was enormous compared to that of the 707, it was a fully fuelled airplane compared to the 707 which was a landing aircraft. Just absolutely no comparison between the two.
So I stand by what I said. The engineers that certified the towers would survive such a disaster have considered current evidence and accept the "official story". Provide an example if you want to continue to claim otherwise.

And I stand by what I said. The quotes I provided clearly show they DID in fact consider the jet fuel in their tests. Then he contradicts himself years later? So I guess we will both claim to be right. [Edit] What I find strange is he considers the difference between 12,000 gallons and 12,980 gallons enormous? Hmmm...
As I already know, whatever information you provide is gospel 100% accurate and truthful in every way shape and form. Good for you.

He says the speed was by far the biggest difference, not the fuel. His tests, understandably, were based on the landing speed of a jet, not one trying to hit with as much speed as it's pilot could muster.
But let me get your take on Leslie E. Robertson. Is he part of a conspiracy to hide the truth?
You seem to accept the quotes of engineers who certified the buildings before the attacks. Is that because you accept them as honest and professional, or because their results are convenient to your view? As I asked before, you are aware that NONE of those engineers today disagree with the official story and accept that the planes caused the collapse. Leslie Robertson isn't alone, it's every engineer that had any involvement with the prior studies that are all with him in accepting the planes as causing the collapse.
Again, if you disagree please provide an example. The only two you've given either died on that day, or agree with me and you just reject him as unreliable. Call him unreliable if you like, but please don't quote his prior work to me as evidence at the same time. I'm not in kindergarten anymore and it's a little insulting.


Why would he go on record stating one thing then suddenly change his mind years later? Why state tests were done considering a full fuel load, then all of a sudden he says "...then of course with the 707 to the best of my knowledge the fuel load was not considered in the design, and indeed I don't know how it could have been considered."

And why would you say they only tested at landing speeds (180MPH) when the quote I posted clearly states 600MPH. Which is it? Was it landing speed 180MPH, or what he said years earlier 600MPH? It certainly can't be both. Why would he also state the the difference between 12,000 gallons of gas and 12,980 gallons of gas enormous? That's far from enormous.

You are right. Now everything he has said is suspect and not to be believed. Disregard every post I have posted with his quotes in them now. And I'll do the same with yours. Thanks.

>> ^Duckman33:

>> ^bcglorf:
>> ^Duckman33:
>> ^bcglorf:
I'm saying they tested for scenarios such as jets with full fuel loads smashing into the towers when they designed them. And provided quotes from the actual engineers stating that fact.
Do you realize that your quotes from those engineers are from long BEFORE the attacks on the towers?
Do you realize that NONE of those engineers have come forward to condemn or rebuke the official story of the collapse?


Really? Again:
Statements by Engineers
"Engineers who participated in the design of the World Trade Center have stated, since the attack, that the Towers were designed to withstand jetliner collisions. For example, Leslie Robertson, who is featured on many documentaries about the attack, said he "designed it for a (Boeing) 707 to hit it." 2 Statements and documents predating the attack indicate that engineers considered the effects of not only of jetliner impacts, but also of ensuing fires."
Frank Demartini's Statement
Frank A. Demartini, on-site construction manager for the World Trade Center, spoke of the resilience of the towers in an interview recorded on January 25, 2001.
"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."

Demartini, who had an office on the 88th floor of the North Tower, has been missing since the 9/11/01 attack, having remained in the North Tower to assist in the evacuation. 6 Demartini had first worked at World Trade Center when Leslie E. Robertson Associates hired him to assess damage from the truck bombing in 1993.
Are you now saying that their testing (and the resulting 1200 page report) was not good enough or incorrect as well? I suppose you have facts to back this up?
Also, I love the way you guys gloss over the fact that everyone keeps talking about how much smaller, slower, and how much less fuel the jets they used for testing were compared to the jets that hit WTC 1&2 is not factually correct.

Go read for yourself what Leslie E. Robertson, the engineer who designed the towers and hired Demartini had to say afterwards. The full source is here but here's a quote:
We had designed the project for the impact of the largest airplane of its time, the Boeing 707. The 767 that actually hit the WTC was quite another matter again. First of all it was a bit heavier than the 707, not very much heavier, but a bit heavier. But mostly it was flying a lot faster. And the energy that it put into the building is proportional to its square of the velocity, as you double the velocity, four times the energy. Triple the velocity, eight times the energy and so forth.
And then of course with the 707 to the best of my knowledge the fuel load was not considered in the design, and indeed I don't know how it could have been considered. But, and with the 767 the fuel load was enormous compared to that of the 707, it was a fully fuelled airplane compared to the 707 which was a landing aircraft. Just absolutely no comparison between the two.
So I stand by what I said. The engineers that certified the towers would survive such a disaster have considered current evidence and accept the "official story". Provide an example if you want to continue to claim otherwise.

And I stand by what I said. The quotes I provided clearly show they DID in fact consider the jet fuel in their tests. Then he contradicts himself years later? So I guess we will both claim to be right. [Edit] What I find strange is he considers the difference between 12,000 gallons and 12,980 gallons enormous? Hmmm...
As I already know, whatever information you provide is gospel 100% accurate and truthful in every way shape and form. Good for you.


He says the speed was by far the biggest difference, not the fuel. His tests, understandably, were based on the landing speed of a jet, not one trying to hit with as much speed as it's pilot could muster.

But let me get your take on Leslie E. Robertson. Is he part of a conspiracy to hide the truth?

You seem to accept the quotes of engineers who certified the buildings before the attacks. Is that because you accept them as honest and professional, or because their results are convenient to your view? As I asked before, you are aware that NONE of those engineers today disagree with the official story and accept that the planes caused the collapse. Leslie Robertson isn't alone, it's every engineer that had any involvement with the prior studies that are all with him in accepting the planes as causing the collapse.

Again, if you disagree please provide an example. The only two you've given either died on that day, or agree with me and you just reject him as unreliable. Call him unreliable if you like, but please don't quote his prior work to me as evidence at the same time. I'm not in kindergarten anymore and it's a little insulting.

>> ^bcglorf:

>> ^Duckman33:
>> ^bcglorf:
I'm saying they tested for scenarios such as jets with full fuel loads smashing into the towers when they designed them. And provided quotes from the actual engineers stating that fact.
Do you realize that your quotes from those engineers are from long BEFORE the attacks on the towers?
Do you realize that NONE of those engineers have come forward to condemn or rebuke the official story of the collapse?


Really? Again:
Statements by Engineers
"Engineers who participated in the design of the World Trade Center have stated, since the attack, that the Towers were designed to withstand jetliner collisions. For example, Leslie Robertson, who is featured on many documentaries about the attack, said he "designed it for a (Boeing) 707 to hit it." 2 Statements and documents predating the attack indicate that engineers considered the effects of not only of jetliner impacts, but also of ensuing fires."
Frank Demartini's Statement
Frank A. Demartini, on-site construction manager for the World Trade Center, spoke of the resilience of the towers in an interview recorded on January 25, 2001.
"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."

Demartini, who had an office on the 88th floor of the North Tower, has been missing since the 9/11/01 attack, having remained in the North Tower to assist in the evacuation. 6 Demartini had first worked at World Trade Center when Leslie E. Robertson Associates hired him to assess damage from the truck bombing in 1993.
Are you now saying that their testing (and the resulting 1200 page report) was not good enough or incorrect as well? I suppose you have facts to back this up?
Also, I love the way you guys gloss over the fact that everyone keeps talking about how much smaller, slower, and how much less fuel the jets they used for testing were compared to the jets that hit WTC 1&2 is not factually correct.

Go read for yourself what Leslie E. Robertson, the engineer who designed the towers and hired Demartini had to say afterwards. The full source is here but here's a quote:
We had designed the project for the impact of the largest airplane of its time, the Boeing 707. The 767 that actually hit the WTC was quite another matter again. First of all it was a bit heavier than the 707, not very much heavier, but a bit heavier. But mostly it was flying a lot faster. And the energy that it put into the building is proportional to its square of the velocity, as you double the velocity, four times the energy. Triple the velocity, eight times the energy and so forth.
And then of course with the 707 to the best of my knowledge the fuel load was not considered in the design, and indeed I don't know how it could have been considered. But, and with the 767 the fuel load was enormous compared to that of the 707, it was a fully fuelled airplane compared to the 707 which was a landing aircraft. Just absolutely no comparison between the two.
So I stand by what I said. The engineers that certified the towers would survive such a disaster have considered current evidence and accept the "official story". Provide an example if you want to continue to claim otherwise.


And I stand by what I said. The quotes I provided clearly show they DID in fact consider the jet fuel in their tests. Then he contradicts himself years later? So I guess we will both claim to be right. [Edit] What I find strange is he considers the difference between 12,000 gallons and 12,980 gallons enormous? Hmmm... Also how did Demartini say ANYTHING after the attacks He's DEAD! He DIED in 9/11!!

As I already know, whatever information you provide is gospel 100% accurate and truthful in every way shape and form. Good for you.

>> ^Duckman33:

>> ^bcglorf:
I'm saying they tested for scenarios such as jets with full fuel loads smashing into the towers when they designed them. And provided quotes from the actual engineers stating that fact.
Do you realize that your quotes from those engineers are from long BEFORE the attacks on the towers?
Do you realize that NONE of those engineers have come forward to condemn or rebuke the official story of the collapse?


Really? Again:
Statements by Engineers
"Engineers who participated in the design of the World Trade Center have stated, since the attack, that the Towers were designed to withstand jetliner collisions. For example, Leslie Robertson, who is featured on many documentaries about the attack, said he "designed it for a (Boeing) 707 to hit it." 2 Statements and documents predating the attack indicate that engineers considered the effects of not only of jetliner impacts, but also of ensuing fires."
Frank Demartini's Statement
Frank A. Demartini, on-site construction manager for the World Trade Center, spoke of the resilience of the towers in an interview recorded on January 25, 2001.
"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."

Demartini, who had an office on the 88th floor of the North Tower, has been missing since the 9/11/01 attack, having remained in the North Tower to assist in the evacuation. 6 Demartini had first worked at World Trade Center when Leslie E. Robertson Associates hired him to assess damage from the truck bombing in 1993.
Are you now saying that their testing (and the resulting 1200 page report) was not good enough or incorrect as well? I suppose you have facts to back this up?
Also, I love the way you guys gloss over the fact that everyone keeps talking about how much smaller, slower, and how much less fuel the jets they used for testing were compared to the jets that hit WTC 1&2 is not factually correct.


Go read for yourself what Leslie E. Robertson, the engineer who designed the towers and hired Demartini had to say afterwards. The full source is here but here's a quote:

We had designed the project for the impact of the largest airplane of its time, the Boeing 707. The 767 that actually hit the WTC was quite another matter again. First of all it was a bit heavier than the 707, not very much heavier, but a bit heavier. But mostly it was flying a lot faster. And the energy that it put into the building is proportional to its square of the velocity, as you double the velocity, four times the energy. Triple the velocity, eight times the energy and so forth.

And then of course with the 707 to the best of my knowledge the fuel load was not considered in the design, and indeed I don't know how it could have been considered. But, and with the 767 the fuel load was enormous compared to that of the 707, it was a fully fuelled airplane compared to the 707 which was a landing aircraft. Just absolutely no comparison between the two.

So I stand by what I said. The engineers that certified the towers would survive such a disaster have considered current evidence and accept the "official story". Provide an example if you want to continue to claim otherwise.

>> ^bcglorf:

I'm saying they tested for scenarios such as jets with full fuel loads smashing into the towers when they designed them. And provided quotes from the actual engineers stating that fact.
Do you realize that your quotes from those engineers are from long BEFORE the attacks on the towers?
Do you realize that NONE of those engineers have come forward to condemn or rebuke the official story of the collapse?



Really? Again:

Statements by Engineers

"Engineers who participated in the design of the World Trade Center have stated, since the attack, that the Towers were designed to withstand jetliner collisions. For example, Leslie Robertson, who is featured on many documentaries about the attack, said he "designed it for a (Boeing) 707 to hit it." 2 Statements and documents predating the attack indicate that engineers considered the effects of not only of jetliner impacts, but also of ensuing fires."

Frank Demartini's Statement

Frank A. Demartini, on-site construction manager for the World Trade Center, spoke of the resilience of the towers in an interview recorded on January 25, 2001.

"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."

Demartini, who had an office on the 88th floor of the North Tower, has been missing since the 9/11/01 attack, having remained in the North Tower to assist in the evacuation. Demartini had first worked at World Trade Center when Leslie E. Robertson Associates hired him to assess damage from the truck bombing in 1993.

Wow a few months before. Yup that discredits his entire statement. I better disregard it entirely. And perhaps since he's dead it would be kind of hard to make any further statements on the subject.

Are you now saying that their testing (and the resulting 1200 page report) was not good enough or incorrect as well? I suppose you have facts to back this up?

Also, I love the way you guys gloss over the fact that everyone keeps talking about how much smaller, slower, and how much less fuel the jets they used for testing were compared to the jets that hit WTC 1&2 is not factually correct.

>> ^Drachen_Jager:

@Duckman33
Are you serious? That quote says the building would withstand the collision. The buildings did withstand the collisions. How is that supporting your argument? You can't just throw stuff at the wall to see what sticks, pick a cogent argument or there's no point in even trying to debate.


"Engineers who participated in the design of the World Trade Center have stated, since the attack, that the Towers were designed to withstand jetliner collisions. For example, Leslie Robertson, who is featured on many documentaries about the attack, said he "designed it for a (Boeing) 707 to hit it." 2 Statements and documents predating the attack indicate that engineers considered the effects of not only of jetliner impacts, but also of ensuing fires."

"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."

Yup. that's exactly what it says.... No mention of jet fuel or the fires from it whatsoever. Again, you're right and they are wrong

>> ^mxxcon:

>> ^MaxWilder:
1. The towers were designed to withstand impacts by jet planes and to withstand fires. But they didn't account for the fact that a jet impact would strip much of the insulation on the steel girders. So the impact plus the prolonged fire was what did them in.also when the constructions of WTC started in 1960's, the largest plane was something like 727, if not even smaller, and that's what the designed were accounting for. A logical situation for a plane hitting such tall buildings would a plane lost in the fog coming down for landing..
757 is a much larger plane, fueled for cross-continent flight, and smashed into WTC going much faster than it would normally fly at such height.


As I posted above and you seemed to ignore. This is actually not entirely true at all. According to this site:
http://911research.wtc7.net/wtc/analysis/design.html

Not only the is size of a Boeing 707 only slightly smaller than a Boeing 767, but it holds only a mere 980 gallons less fuel, and is faster than a 767 by 77MPh.

And:
"The buildings have been investigated and found to be safe in an assumed collision with a large jet airliner (Boeing 707—DC traveling at 600 miles per hour. Analysis indicates that such collision would result in only local damage which could not cause collapse or substantial damage to the building and would not endanger the lives and safety of occupants not in the immediate area of impact."

>> ^Drachen_Jager:

"There were a lot of firsts for the WTC. In all the history of high-rise fires, not one has ever been hit with a plane traveling 500 miles an hour and had its fire proofing removed from its trusses. In all the history of high-rise fires, not one has ever had its steel columns which hold lateral load sheared off by a 767. In all the history of high-rise fires, not one has ever been a building which had its vertical load bearing columns in its core removed by an airliner. For Building 7, in all the history of high-rise fires, not one has ever been left for 6-7 hours with its bottom floors on fire with structural damage from another building collapse."
http://www.debunking911.com/firsttime.htm
>> ^Duckman33:
I see the third steel structure building ever in history to collapse from a fire. 3 buildings in one day, but has never happened before in history. Wonder what the odds of that happening are?



From your link "Debunking 9/11":

"It is impressive that the World Trade Center towers held up as long as they did after being attacked at full speed by Boeing 767 jets, because they were only designed to withstand a crash from the largest plane at the time: the smaller, slower Boeing 707. And according to Robertson, the 707's fuel load was not even considered at the time."

This is actually not entirely true at all. According to this site:
http://911research.wtc7.net/wtc/analysis/design.html

Not only the is size of a Boeing 707 only slightly smaller than a Boeing 767, but it holds only a mere 980 gallons less fuel, and is faster than a 767 by 77MPh.

Also:
"Engineers who participated in the design of the World Trade Center have stated, since the attack, that the Towers were designed to withstand jetliner collisions. For example, Leslie Robertson, who is featured on many documentaries about the attack, said he "designed it for a (Boeing) 707 to hit it." 2 Statements and documents predating the attack indicate that engineers considered the effects of not only of jetliner impacts, but also of ensuing fires."

And:
John Skilling was the head structural engineer for the World Trade Center. In a 1993 interview, Skilling stated that the Towers were designed to withstand the impact and fires resulting from the collision of a large jetliner such as Boeing 707 or Douglas DC-8.

"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."

A white paper released on February 3, 1964 states that the Towers could have withstood impacts of jetliners travelling 600 mph -- a speed greater than the impact speed of either jetliner used on 9/11/01.

"The buildings have been investigated and found to be safe in an assumed collision with a large jet airliner (Boeing 707—DC traveling at 600 miles per hour. Analysis indicates that such collision would result in only local damage which could not cause collapse or substantial damage to the building and would not endanger the lives and safety of occupants not in the immediate area of impact."

See also: http://911research.wtc7.net/disinfo/index.html