Discussion
I discussed somehow with Eric Bart this DU penetrator hypothesis. Eric is convinced, also, that a 757-200 hit the Pentagon and that an explosion occured during the crash. He argues that it is a shaped charge, and that all the damage can be explained in this way. Though I respect his point of view, I disagree on this particular point.
The first damage, near the entry point could be due to a solid explosive, like a shaped charge explosion. The other damage, deeper inside the building up to the "punch out" hole, are more likely due to a depleted Uranium penetrator. The fact that the damage trajectory is deflected by pillars 1 K and 5 N shows that it cannot be the plasma influx of a shaped charge which did this, but that it is a solid mass which is deflected unpon impact with pillars.
But, whatever it is which made the damage deep inside the Pentagon, Eric and I agree on the fact that the plane contained a military charge (bomb) before taking off. Just a disagreement on the model...
Conclusion
The witness accounts, the damage inside the Pentagon and the available data about this crash, ASCE report and CCTV video frames, prove a conspiracy and a cover-up. The plane had been prepared with a military charge on board, and was used as a missile. The complexity of the approach trajectory, along with this "missile-like" use makes it probable that it was under electronic control, at least for the last part of the trajectory. This sophisticated attack scheme, with the use of the more recent high technologies, cannot be the product of "arab terrorists armed with box cutters". There seems to be some cover-up of facts, as well in the ASCE report as in the reports made by specialists of seismic detection.
http://perso.wanadoo.fr/jpdesm/pentagon/pages-en/dam-inside.html(pilot/engineer/professor)