The capital R has a gap, the Q has a distinctive, right-facing, single-stroke tail...Palatino comes close, but only if you substitute the Q from Palatino Sans.

I'll keep searching.

Yeah, Palatino is close, but it's not there. This is driving me insane...I'm really good at fonts normally. Nobody at the unit the jet is attached to seems to know, but it just doesn't seem like it's an overly complex typeface....except it is!

Finally, I think I have some suggestions for you:

http://www.myfonts.com/fonts/linotype/barbedor/
https://www.fontfont.com/fonts/angie/regular?aid=4
http://www.myfonts.com/fonts/typofonderie/le-monde-journal-std/
http://www.myfonts.com/search/Borges+Blanca/fonts/

If there is any chance of getting a better quality sample image, that might help narrow it down.

Better look....

Thanks for the higher-quality sample. Sadly, it didn't result in any direct hits in Whatthefont or Whatfontis.

These are closer than my previous guesses, but still no dead-on match.

Angie Sans
http://www.myfonts.com/fonts/typofonderie/angie-sans/

Friz Quadrata
http://www.myfonts.com/fonts/linotype/friz-quadrata/

Baker Signet
http://www.myfonts.com/fonts/adobe/baker-signet/

Of we go high in the sky into the deep blue yonder with these wide speedy air force letters:

That's a great idea! Every once in a while, I run across a font in one of these stencil plotters that doesn't have a commercial equivalent. I could draw the dadgummed thing by hand, I was just really not looking forward to it. I REALLY appreciate everyones help though...I really do!