The near 360 degree descending corkscrew flightpath at speeds in excess of what the aircraft is capable of, then leveling off perfectly and staying just a few feet in the air right into the side of the pentagon. All done by amateur pilots. That track should not exist.

http://www.911-archiv.net/index.php?option=com_kunena&Itemid=542&catid=60&id=1374&lang=en&view=topic

Specifically:

https://i14.photobucket.com/albums/a327/lytetrip/Pentagon/flight%20path/ntsbvsdcpath.jpg

The near 360 degree descending corkscrew flightpath at speeds in excess of what the aircraft is capable of, then leveling off perfectly and staying just a few feet in the air right into the side of the pentagon. All done by amateur pilots. That track should not exist.