It cracks me up that their are people still bying into the fact that the 911 commission was supposed to be a panel of experts. They stated that these planes LOL, hit the towers @ over 500 miles per hour, at an altitude of 700 feet. Well guess what that is impossible and I'll chalange anyone who believes this lie. Do what I did and call Boeing and ask the technical dept. if that is possible. It is in fact quite impossible.

Did you get the max safe speed, or max possible speed at 700ft?

max speed before air pressure breakup is 305 mph remember planes fly at high altitude because the air density is much less, thus allowing max air speed. in no way could those planes fly at over 500 mph, stay intact and hit their targets at 700 feet