okay that proves one thing ...
but where is the other engine ?...
a very simmilar engine is used in the global hawk ..
http://911review.org/Sept11Wiki/GlobalHawk.shtml
why is there no sing of wings or tail section ....
these parts survive because they are torn away ..
757 is a big aircraft .. the rubble seems small
why is the hole in the building soo small ...
you saw how the planes penetrated the towers ... the fuselarge and 'wings' penetrated the building .. the case is not the same in the pentagon crash ...