I use to live near a base and would stand in the back yard and use a 100-300 AF. Used 100 speed film and got very good results. Key is to anticipate and pan. If you have done any bird hunting, it is pretty much like that - if not just pan a little ahead of the subject and press the shutter.
If you can get up close to some of the planes, try the 28-90 at 28 from under the plane or from other angles that you don't normally see. Most of all, have fun.