Evidence that the government is responsible for 9/11 twin towers (movie)

[Code]

707 == 152 feet long. 145 foot wingspan. 875 thousand pounds
747 == 231 feet long. 211 foot wingspan. 333 thousand pounds.


"SLIGHTLY SMALLER"?!?!!!!

I found an article published by the Chicago Tribune shortly after the attacks referencing the chief structural engineer of the WTC stating the towers steel columns were designed to withstand an impact from a 707.

The 707 is apparently slightly smaller in size to the 767's that struck the north and south tower, have a slightly lighter max and dry take off weight, similar fuel capacity.

Engineers shocked by towers’ collapse
September 11, 2001


By Blair Kamin
Tribune architecture critic
Published September 11, 2001, 12:18 PM CDT

The World Trade Center, a symbol of American economic might, survived one terrorist attack in 1993. It was designed to withstand the impact of a jet, but both its towers collapsed this morning after planes rammed them.

The structural engineer who designed the towers said as recently as last week that their steel columns could remain standing if they were hit by a 707.




Les Robertson, the Trade Center’s structural engineer, spoke last week at a conference on tall buildings in Frankfurt, Germany. He was asked during a question-and-answer session what he had done to protect the twin towers from terrorist attacks, according to Joseph Burns, a principal at the Chicago firm of Thornton-Thomasetti Engineers.

Burns, who was present, said that Robertson said of the center, “I designed it for a 707 to smash into it.”

Burns, whose firm did the structural engineering for the Petronas Twin Towers in Malaysia -- the world’s tallest buildings -- said Robertson did not elaborate on the remark. Robertson could not be reached early today.

Completed in 1972 and 1973, the 110-story twin towers were the fifth and sixth tallest buildings in the world. One World Trade Center, finished in 1972, was briefly after its construction the world’s tallest building. The towers have been called “a monumental gate to New York and the United States.”

They withstood the 1993 attack, when a bomb-laden van exploded, killing six people and injuring more than 1,000.

Closely spaced steel columns that ringed their perimeter held up the World Trade Center towers. Chicago’s Aon Center (formerly the Amoco Building), completed in 1973, uses a similar support system, known to structural engineers as a “tube.”

Shocked by the building’s collapse, structural engineers pointed to fire as the likely cause of the structural failure.

“Fire melts steel,” Burns said. In addition, he said, the impact of the plane could have severely damaged the building’s sprinklers, allowing the fire to rage, despite fireproofing supposed to protect steel columns and beams.

“You never know in an explosion like that whether they (the sprinklers) get cut off,” Burns said.

Architects Minoru Yamasaki and Associates, in association with Emery Roth & Sons, designed the World Trade Center.

The structural engineers were the firm of Skilling, Helle, Chrstiansen, Robertson. The developer was The Port Authority of New York and New Jersey.

Today’s attack marked the second time that a plane has crashed into a New York City skyscraper, although the first incident was an accident.

In 1945, a B-25 flying at 200 miles per hour slammed into the 78th and 79th floors of the Empire State Building, gouging an 18-by-20-foot hole 913 feet above the streets of Manhattan. The pilot, Lt. Col. William F. Smith Jr., had been heading from New York’s LaGuardia Airport to Newark, N.J., when he became disoriented.

Fourteen people died in the crash and the fire that followed -- three people in the plane and 11 in what was then the world’s tallest building.

Like the World Trade Center, the Pentagon, which also was struck by a plane, provided a sizable and symbolic target.

The Pentagon is the world’s largest office building, with a total of 6.5 million square feet, serves as headquarters for the world’s most powerful military. Sears Tower, by comparison, has about 3.5 million square feet of office space.
Copyright © 2004, Chicago Tribune

http://www.chicagotribune.com/news/nationworld/chi-010911kamin-towers.story

 

[NJjuice22]

http://members.fortunecity.com/911/wtc/tower-explosions.htm

http://www.google.com.fj/search?sourceid=navclient&ie=UTF-8&oe=UTF-8&q=world+trade+center+controlled+demolition

 

[buddy28]

707 == 152 feet long. 145 foot wingspan. 875 thousand pounds
747 == 231 feet long. 211 foot wingspan. 333 thousand pounds.

I think you got those weights mixed up champ.

Lemmie check the site i got the figs from.

 

[GoldenDelicious]

for those of you who think that your own government is not capable of doing such a thing and the source of ths information is crappy at best, you might want to consider the first tool of the misinformant, which is to play devils advocate very poorly, in order to promote disbelief in an otherwise viable idea

 

[Code]

http://www.globalaircraft.org/planes/b707.pl

I think you got those weights mixed up champ.

Lemmie check the site i got the figs from.

 

[NJjuice22]

707 == 152 feet long. 145 foot wingspan. 875 thousand pounds
747 == 231 feet long. 211 foot wingspan. 333 thousand pounds.


"SLIGHTLY SMALLER"?!?!!!!

hey champ..who said a 747 crashed into the towers??? 767 chief and here are the real numbers champ.

Fact. The twin towers were designed to withstand a collision with a Boeing 707.

The maximum takeoff weight for a Boeing 707-320B is 336,000 pounds.
The maximum takeoff weight for a Boeing 767-200ER is 395,000 pounds.

The wingspan of a Boeing 707 is 146 feet.
The wingspan of a Boeing 767 is 156 feet.

The length of a Boeing 707 is 153 feet.
The length of a Boeing 767 is 159 feet.

The Boeing 707 could carry 23,000 gallons of fuel.
The Boeing 767 could carry 23,980 gallons of fuel.

The cruise speed of a Boeing 707 is 607 mph = 890 ft/s,
The cruise speed of a Boeing 767 is 530 mph = 777 ft/s.

So, the Boeing 707 and 767 are very similar aircraft, with the main differences being that the 767 is slightly heavier and the 707 is faster

 

[NJjuice22]

for the engineering genious who made some general assements of the trade center structure, here is a more in depth explanation, scroll down to where it says "truss theory" and read the next one too "where;s the steel"

http://zena.secureforum.com/interactive/content/display_item.cfm?itemID=3774

 

[Code]

http://www.globalaircraft.org/planes/b767.pl

 

[buddy28]

I didnt even notice. The terrorists were using 767's code. Not 747's.

Big difference.

 

[NJjuice22]

http://www.globalaircraft.org/planes/b767.pl

hey chief...you posted a link to a 767-400ER...we are talking about a 767-200ER...get your planes straight champ.