-1
If the pilot chooses to engage with a GV, then he is leaving it up to chance that the tank might hit him.
And yes it is possible. I'm driving west, plane is flying east - perfect 12 o clock, I lift up the turret, aim it carefully, then fire a round down range. If I'm lucky, I'll hit him.
You think if WWII plane (or any plane for that matter) got hit with a tank round that it wouldn't fall out of the sky/explode and make pretty fireworks for the people on the ground? Nothing like raining body parts.