Found this site for the building plastic models of USAF Aircraft.
http://www.usaf-sig.org/
I thought that people here at CombatACE might be interested in it because of what is in their download section.
http://www.usaf-sig.org/index.php/references/downloads
Look under "Technical Orders" in the "Type-Specific" page.
There are manuals for about forty different aircraft that have been flown by the USAF.
Edit: Updated the links.