9-11 Never Forget

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What a very interesting video, and not a yellow vest or safety harness in sight. It's hard to believe that with all that steel and concrete used that they would have come down as quickly as they did. But to be fair to the engineers they more than likely didn't factor in for some Dick Heads doing what they did.
I do hope that when One World Trade Center is finally completed, that they fly the biggest American Flag that they can safely fly, just to send a message to the world, well one part anyway.
"Up Yours"
:y68:
 
They did take into consideration being hit by a small commuter sized plane (also sway caused by high winds).

But the terrorists picked nonstop flights to the West Coast which would be carrying the maximum fuel.

The two towers were built with a central backbone with the floors like cantilevers. Once the fireproofing on the central backbone steel girders was knocked off or exposed to hi temps for longer than designed, it buckled. Then the upper floors pancaked onto the floors below.

The second tower hit actually collapsed first because it was hit lower....therefore more weight above the impact zone than the first one hit.

The Empire State Building with a traditional outer steel shell construction has survived being hit by large aircraft. I believe it was hit with a bomber in the fog during WWII.

Posted with TapaTalk
 
I had to look it up to see if it was a B-25.

From Wikipedia . . .
The B-25 Empire State Building crash was a 1945 aircraft accident in which a B-25 Mitchell piloted in thick fog crashed into the Empire State Building. The accident did not compromise the building's structural integrity, but it did cause fourteen deaths (three crewmen and eleven people in the building) and damage estimated at $1,000,000 ($13,000,000 current dollar adjustment).


Empirestate540.jpg

[h=2]Details[/h]On Saturday, July 28, 1945, Lieutenant Colonel William Franklin Smith, Jr. was piloting a B-25 Mitchell bomber on a routine personnel transport mission from Bedford Army Air Field to Newark Airport. Smith asked for clearance to land, but was advised of zero visibility. Proceeding anyway, he became disoriented by the fog, and started turning right instead of left after passing the Chrysler Building.

At 9:40 a.m., the aircraft crashed into the north side of the Empire State Building, between the 78th and 80th floors, carving an 18 ft (5.5 m) x 20 ft (6.1 m) hole in the building where the offices of the National Catholic Welfare Council were located. One engine shot through the side opposite the impact and flew as far as the next block, landing on the roof of a nearby building and starting a fire that destroyed a penthouse. The other engine and part of the landing gear plummeted down an elevator shaft. The resulting fire was extinguished in 40 minutes. It is still the only fire at such a height that has ever been successfully controlled.

Fourteen people were killed: Smith, the two others aboard the bomber (Staff Sergeant Christopher Domitrovich and Albert Perna, a Navy aviation machinist's mate hitching a ride), and eleven people in the building. Elevator operator Betty Lou Oliver was injured. Rescuers decided to transport her on an elevator which they did not know had weakened cables. She survived a plunge of 75 stories, which still stands as the Guinness World Record for the longest survived elevator fall.

Despite the damage and loss of life, the building was open for business on many floors on the following Monday. The crash helped spur the passage of the long-pending Federal Tort Claims Act of 1946, as well as the insertion of retroactive provisions into the law, allowing people to sue the government for the accident.
 

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