Teal - yes, each plane flies in a different set of vortices generated at the wingtips. And they vary constantly with changing positions and distances. Each jet affects the other.
As a flight lead you can feel the other aircraft moving around you. If you’re the right wingman, if you move in closer to the lead, you can push him around and cause his right wing to move up. It’s an easy to aggravate your lead. 😊
I was acting as a lead safe overhead the Lexington many years ago, holding overhead just waiting for something bad to happen. One of our students went the wrong way (heading 130) when he was diverted with Bingo fuel (emergency fuel state). After several calls, the Air Boss finally got him going in the right direction (heading 310) toward Pensacola by cussing very LOUDLY over the radio. That was the only time I ever heard an Air Boss cuss on the radio. “G— dammit 904, Pensacola is 310, 310 do you copy?” The student responded with a huge, 180 degree bat turn just as I was catching him. Chit!
I finally caught up and joined on his right side. I pulled up alongside, waggled the wings to get him to look up but he was now heads down flying 310. A couple of mike clicks on the radio didn’t work either. I tried to call but he had switched off the frequency. I finally eased forward and a little left, in front of his right wingtip to allow my wingtip vortices to pick his wing up. He was shocked when he finally looked up and figured out that I would take him home.
In our advanced formation syllabus we taught studs to fly formation through aerobatics, wingovers, barrel rolls, etc. as confidence builders. We used to do it in four plane formation but we finally got smart and cut that out. You’d come back after one of those hops sweating your butt off. It paid off though when you were lost comm and had to follow the lead through bad weather or at night on an approach at the boat.