This is part of some kind of "legacy flight" program (I've also seen this called the "Heritage Flight" program - Note: I finally figured out the Navy uses one name, the Air force the other) where they do flybys with planes of different periods. This is an A-10, F-16, and P-51.
Another legacy flight. F/A-18 Hornet and a F8F Bearcat
The Smirnof MiGs. It's not every day you see MiG-17s flying around.
Would you want to mess with this plane? I think not.
An A-10 Warthog in its natural environment.
This is how they refuel helicopters in flight. Obviously they can do it in pairs. Today (11-11-01) some folks spotted one of these flying around near here and started calling radio stations in near-panic. I must admit they do look rather odd but if you see one, well, now you know what it is.