9/11 - Terrorist Attacks on America - Why the Twin Towers Collapsed- Osama Bin Laden and Al Qaeda. On September 11, 2001 , terrorists hijacked 4 airplanes and crashed them into the two towers of the World Trade Centre in New York and the Pentagon in Washington. The fourth jet crashed in Pennsylvania. About 3,000 people were killed and part of the Pentagon was destroyed. It was soon found out that Osama Bin Laden and his terrorist organization Al Qaeda had been behind the attacks.
The planes left the airports on the morning of September 11. Their original destination was California , so they had tons of fuel on board. Sometime after take-off , the terrorists took over the planes. At 8:45 a.m. the first plane crashed into the north tower of the World Trade Centre. 20 minutes later, the second plane hit the south tower. At about 9:40 a.m. a plane with 58 people on board crashed into the west side of the Pentagon, the country’s military headquarters in Washington.
After the attack After the attack on the USA, there was panic all over the country. Why the Towers Collapsed Al-Qaeda. Washingtonpost.com. 9-11 Review: The Pentagon Attack. At around 9:39 AM, after both towers had been hit but before either had exploded, a 757 thought to be Flight 77 approached the Pentagon. Having flown over the capital from the north, it ultimately approached the west block of the Pentagon from the southwest, after making a 270-degree turn while descending 7000 feet.
The jetliner was less than 100 feet overhead as it swooped over stalled traffic on the highway adjacent to the large lawn and heliport on the west side of the sprawling building. Some eyewitnesses said that the plane banked left and its left wing hit the heliport. Witnesses variously describe the plane crashing into the facade, hitting the ground in front of the facade it and exploding, disappearing into the building, and being swallowed by rings of smoke. They agree that there was a huge explosion and fireball, and torrents of smoke in the wake of the strike.
Some describe small fragments of aircraft raining down. No Impact Photos Faint Seismic Signal References. World Trade Center Disaster Information. United States Search and Rescue Task Force World Trade Center Disaster The United States has sustained the most brutal terrorist attack in history. Thousands of its citizens have been murdered and many more injured. Others lives have forever been effected. All of us are shocked and overwhelmed by the massive loss in lives and property that have yet to be calculated. On behalf of the U.S. I would also like to thank those that have contacted the Task Force to make donations and to volunteer their services. Due to the many requests for information on the Twin Towers Buildings, their structure, how the incident happened, rescue operations, photographs, etc. we have included the information below for educational and historic purposes. Again, thank you for your interest, dedication and willingness to help others! Sincerely, Chief Steven L.
World Trade Center - New York Engineering Aspects The Structural System: Also unique to the engineering design were its core and elevator system. Jon D. The U.S. September 11 attacks. The September 11 attacks (also referred to as September 11, September 11th, or 9/11)[nb 1] were a series of four coordinated terrorist attacks launched by the Islamic terrorist group al-Qaeda upon the United States in New York City and the Washington, D.C. metropolitan area on Tuesday, September 11, 2001.
Four passenger airliners were hijacked by 19 al-Qaeda terrorists so they could be flown into buildings in suicide attacks. Two of those planes, American Airlines Flight 11 and United Airlines Flight 175, were crashed into the North and South towers, respectively, of the World Trade Center complex in New York City. Within two hours, both towers collapsed with debris and the resulting fires causing partial or complete collapse of all other buildings in the WTC complex, as well as significant damage to ten other large surrounding structures.
Background Attackers al-Qaeda The origins of al-Qaeda can be traced to 1979 when the Soviet Union invaded Afghanistan. Osama bin Laden Motives Attacks.