Quote Originally Posted by Seismosaur View Post
No idea.The supposed "engine turbine" was found INSIDE the building. Did you see a Pratt and Whitney out here:

I don't know enough about aircraft engine design to make a complete judgement on this. However I did find a site that discusses that image from your first post.

And you're exactly right about strutural differences: Skyscapers are BUILT to withstand jet impacts. A flatter building like the pentagon getting hit head-one by a 757 would show MUCH more damage. The main hole is only large enough to fit the front of the fuselage in.
The WTC was designed to withstand an accidental hit from a plane, where it would be travelling at low speed. It wasn't designed for a plane going at top speed slamming into it. Also, the impact point on the WTC was mostly steel beams and glass, compared with the much more solid exterior of the Pentagon. Against a solid surface, only objects with sufficient mass, such as the main fuselage and the engines are going to penetrate, with the rest breaking apart on impact.

And face it, eyewitness accounts are crap. Everyday people think they see Alien Space CraftTM.
There's a little something called convergence of evidence. The eyewitness accounts for the most part agree with each other and the physical evidence, so they are likely to be mostly correct.