Those of us old enough to remember WWII aircraft being expended as remote target drones will be interested to know they're all the way up to using F16-A models for the job nowadays. Actually, when I was a kid I remember reading about B-17 targets, but I think the aircraft more in use in the mid-70s were century series fighters like the F-100. Still, dude, the F-16 is now so old they're using worn out ones for target practice!