Illustrative guide to the relative positioning of the planes that caused the 9/11 disaster.
<a href="//commons.wikimedia.org/wiki/User:Fred_the_Oyster" title="User:Fred the Oyster">Fred the Oyster</a>
2011-10-28
<a rel="nofollow" class="external text" href="http://www.fema.gov/pdf/library/fema403_ch1.pdf">FEMA</a> (Page 5)