Welcome to European Tribune. It's gone a bit quiet around here these days, but it's still going.
I'm no specialist in planes (though I know some tidbits on structural engineering and materials), and not paranoid enough to follow intricate plots...
But if the modeling of the crash shown here is not too far from reality (or at least a straightforward hypothesis), those engines went through the ground floor.

In Dodo's links you'll find those pictures of the damages on the outer part of the building. The structural damages were mostly at the ground floor and is consistent with the flight path and height level (in fact the plane must have been on a an air cushion effect, "effet de sol" in french).

One of them, left wing, chunked out a bit of concrete railing and the right one hit the generator (two structures at less then 1m and 3m high respectively) and went inside (picture of one engine inside the wrecked building) through the ground floor part of the facade.

Not surprisingly, the pictures show that posts and beams are damaged much further then the central big hole... (the famed wing problem)!

The Pentagone building shape and built technique had the same effect (my feeling) then the multiple layers of plastic sheets used to stop a bullet in forensic tests... The shape charge effect of such a plane at such a velocity would have otherwise reached the central courtyard. While it seems that only two holes were blown up on that side  (either perpendicular corridors, or part of the engines)!

I would agree with some that the chances to hit the target, flying so low and in such a short distance to maneuver and align the plane is really hard to achieve even for a trained fighter pilot !

My two euro cents worth of explanation !

"What can I do, What can I write, Against the fall of Night". A.E. Housman

by margouillat (hemidactylus(dot)frenatus(at)wanadoo(dot)fr) on Fri Sep 15th, 2006 at 07:07:00 PM EST
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