You should go to Duxford for one of the flying displays. I'm going to the Flying Legends in July so Ill put my 100-300 lens to good use. They put on an excellent display, a couple of years ago they had about a dozen Spitfires and three Hurricanes doing a scramble takeoff...Amazing!
Totally different sound to anything else that flew 

Not a very substantional list yet though is it!