Planes Of Fame Airshow
First off, what a wonderful collection of War Birds! I'm jealous!
Secondly, perfect your panning and drop the shutter speed so the props are not stopped.
If possible, find the local radio control model field and go there and practice and try out different things. When you can get good model shots the real ones will be a piece of cake. Note, the models can use a higher shutter speed than the real ones as the engine RPM is generally higher.
Take the scenic route! Life is too short to do otherwise.