http://911blogger.com/news/2012-01-08/pentagon-attack-problems-theories-alternative-large-plane-impact-john-d-wyndham
In ongoing research into the Pentagon attack the following peer-reviewed paper has now been published at the Journal of 9/11 Studies:
“The Pentagon Attack: Problems with Theories Alternative to Large Plane Impact” by John D. Wyndham.
http://www.journalof911studies.com/volume/2010/Wyndham1.pdf
As stated in the abstract, this paper shows that, of all the theories about what caused the damage and debris at the Pentagon on 9/11, a large plane impacting the Pentagon is in best accord with the majority eye witness testimony and main physical evidence, and is by far the most plausible theory. The failure of the 9/11 truth movement to reach consensus on this issue after almost a decade is largely due to a failure to rigorously apply the scientific method to each proposed theory.
References here