Interesting...
(I apologize that I don't have any of my 9/11 books here right now, or I would pull them out and look at other things. I lent them to church to decorate for the special 9/11 service we had, and don't have them back yet)
Well, I think what throws us is the downward angle of the damaged area into the building. Did the plane then come in more level and just collapse it? Maybe they leveled out at the last minute to be sure to have better aim? Hard to aim when dive bombing on a steep dive.
Fascinating though, and changes my concept of what I thought happened, for sure.
Nightowl >8#