For my retirement "present", my Director of Ops(Air Force) took me up with him in an F-16B(2 seater), out of Jacksonville NAS. The Air Force had a contingency of F-16s there for Air Defense Alert Activities, and it was my Col's time to renew his quals for the quarter.
We went up as a flight of 4, then split off into 2 separate flights, one flight holding at a block 18,000 to 23,000ft(us) and another flight blocking from 25,000 to 29,000ft, as I recall.
We were up against a Lear Jet, our target who could be at any altitude from 9,000 up to 33,000ft, as long as he stayed out of the airspace blocks that the flights were assigned to.
We were paired against him twice, at first, locked up and shot him once with a captive AIM-9 Sidewinder, but we never saw him the second go. We searched that sky, all over the place off Jacksonville and never did get a radar lock on him.
Then we were hooked up on a KC-10 tanker for Air Refueling(awesome being under the belly of an airplane that huge, taking on fuel through a tube going behind your canopy!)
Then, disengaging we had 3 more opportunities to intercept that Lear Jet again, scoring 2 out of the 3 times he headed in our direction.
Coolest thing I'll never forget was when my pilot couldn't find the Lear, he was just about past us, when I spotted him visually about 6,000ft below us, heading away at our southeast, and I yelled:
"Tally Ho", Lear Jet, right 5 o'clock, heading away to our right rear quarter!"
My pilot never missed a beat, bent that F-16 around at one heck of an angle of bank, nose down and lit off the afterburner! Holy Sh!t!!
He rolled her over at about 8,000ft, came out of burner and lined up on the Lear, with the buzz of the AIM-9 acquiring the exhaust of the Lears' engines droning in my helmet. "FOX 2", my pilot called; splash one Lear Jet!
I hardly remembered the rest of the flight and the ride back to Jacksonville NAS.