It would be interesting, but how do we know if it's genuine, and whether it's really unclassified? I can find no information on the Wikipedia, other than some of the components of this plane remain classified.
I guess the only definitive proof would be a download link for the same document from an official (.mil or .gov) website. Otherwise it can't be proven that this is allowed to be distributed, so I would advise not to risk it; I might be too cautious, but I don't want to be abducted to Guantanamo
This is what I've found, there aren't any document downloads:
http://www.nationalmuseum.af.mil/fac...eet.asp?id=410