Guys, there is no challenge in getting an airplane while stopping the props. Set the shutter at 1/1000- to 1/2000 and all you have to do is point in the general direction of the sky. The problem with that is that there isn't much depth of field and the details won't be as sharp. I am looking for shots that I can blow up into gallery prints, like 16x20, or 20x30.
You want the sense of motion. Otherwise, they look like models. The clear airplane with good prop blur is the money shot.