I did the Red Flag (Flatiron) when the bucc film of the wingtip duststorm was taken. Also the film of the Bucc flying over the caravan, where the last frame was the entire starboard intake filling the screen. They lost the vhf whip aerial from the caravan. 'Stipstream' they said; scratches on the leading edge said another...
Also, one enterprising nav used to unstrap en-route to the ex area and kneel on his bang seat - then he could be the eyes looking to the rear for the opposition. His view was that his chances of survival at LL were virtually zero, therefore it didn't really matter... Don't think his boss was overly impressed when it came to light.