In this version an additional photograph of debris has been included, wing loading on the spiral descent of flight AA77 has been calculated and the description of the position of CIT has been enlarged. Version 5 included a table showing that a range of flight paths exist which would enable a Boeing 757 to hit the light poles and the Pentagon without experiencing excessive g-force. As some researchers have stated that this is impossible the issue of misinformation arises and is examined in a postscript.
Read: http://www.journalof911studies.com/volume/2009/WhatHitPentagonDrLeggeAug.pdf
