While there are many eyewitnesses to explosions in the buildings, none were reported until after the planes hit the twin towers. Most of the eyewitness reports are from first responders and fire fighters that were in the buildings preparing to put the fires out with water lines that experienced the explosions from lower floors as well as when the towers fell. Some were from FEMA personnel who were dispatched into the area of town on Sept 10, 2001.
By the end of the day, WTC 1, WTC 2, and WTC 7, had all crashed into their own footprint with all of the concrete, wall board, building materials, and office furniture, exploding into practically dust size particles as the buildings fell.
This is the first time in the history of high rise buildings, that fire has been reported as the cause of their collapse. These buildings were built to withstand the impact of the Boeing 707, at that time the largerst commerical airliner, after the impact of a B-25 Mitchell bomber had struck and exploded into the Empire State building years prior to the build of the towers.
Planes
No. The planes that crashed into the twin towers were 767s, and the plane that crashed into the Pentagon and the one that crashed in Pennsylvania were both 757s.
The planes carried bombs that exploded when the pilot crashed into targets.
Fix bicycles
Into the twin towers 2 but they crashed 2 more planes- to the pentagon and an open field in Philadelphia
The planes crashed in three states. Two planes crashed in New York, one in Virginia near Washington D.C. and one in Pennsylvania.
Four planes were hijacked. Two crashed into the World Trade Center, one crashed into the Pentagon, and one crashed in a field.
3 planes
The planes departed from Newark, Boston, and D.C.
Two planes crashed into the Twin Towers in New York on 9-11. Additionally a third plane was crashed into the Pentagon near Washington D.C. and a fourth crashed in a forest in Pennsylvania after the passengers fought the hijackers.
september 11, 2001 terrorist hijack four U.S planes, two of the planes were crashed into the twin towers, one plan was crashed into the pentagon and the other was crashed in a death valley.
american airlines