OK...stupid question probably...

[FL420]

When wing tip vortexes really become a problem is when air-air refueling off a wing station on a large tanker like the KC-135 (707) or VC-10 (large Brit tanker/transport). You need almost full aileron trim AWAY from the tanker to just stay in the basket. It's very stable and easily antisipated, strange none the less.

What's really fun is tanking off a wing station of a Marine KC-130 in an F-4 loaded for bear. In addition to dealing with the airflow from the wing and big turboprop engines, you often had to modulate one engine into and out of min. burner to stay in the basket as you get heavier at the slow speeds.

 

[Bjammin]

What's really fun is tanking off a wing station of a Marine KC-130 in an F-4 loaded for bear.

I bet, sounds fun.