South Tower impact

Mass and Velocity of 767 vs Thickness of Trade Tower Perimeter Walls.

[I just spent a long time writing an amendment to this blog. I'm at a public terminal and lost the text i worked on. I have to go not but will re-write later tonights.

The blog entry is incorrect since my calculations were wrong. I apologize for the sloppiness.

More later.]

From the Journal of Engineering Mechanics:
"Impact of the Boeing 767 Aircraft into the World Trade Center"

J. Engrg. Mech., Volume 131, Issue 10, pp. 1066-1072 (October 2005)

Here's the abstract from ASCE Research Library