How about an air show event in the midlands like Cosford, they have some very good 2 day events, One for real aircraft and a superb 2 day large model aircraft event. They have very good camping facilities and the last 2 years i have been they have been absolute scorchers and set in a very nice area. There are plenty of beer tents too !! Anyhow just an idea. I think the large model event is in July. And guys these are very large models some powered by real model jet engines. And last year a display was put on both days by a real spitfire.