From Anthony Lawson, of "This is an Orange" fame.

This video demonstrates that the speed of the aircraft which hit the South Tower of the World Trade Center, on 9/11, did not exceed the design limitations of its airframe or engines, and that the way in which the aircraft breached the wall of the building was feasible. For details on FAA permissible airspeeds: http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/57AFAC2D9E97066D8625731E00694575?OpenDocument&Highlig...

Added: November 26, 2007

http://www.youtube.com/watch?v=_f8IiQMjf3U#GU5U2spHI_4