Not silver winged (although being winged at Vance AFB, my gold wings may have a little silver mixed in)
The USAF sends their pilots through IFT, with the difference being the T=training vs. the Navy IFS where the S=screening. The USAF's point is to get the student through their PPL in order to make them stronger in JSUPT vs. the Navy's intent to attrite the weak early and cheaply.
I was led to believe that you had to be a rated pilot in the USAF in order to fly UAVs. This is what led to the draft from other platforms in order to populate the CONEX boxes in Nevada with real pilots. I don't really know what they do with their Navs, but I was led to believe that they are going the way of carrying a sextant in the aircraft (yes, the E-6 had one until about 8 years ago).