I've been asked whether this one is an air-to-air shot:
It's not. In fact, a friend used his cell phone to capture me shooting it:
Despite being prepared for it, I still instinctively ducked in shock as it screamed over. I think the pilot was slightly above normal cruising speed as he passed overhead...which is why he outran my focus...which is why the shot is less than sharp.
Oh well. At least I got a free haircut out of it!