Old Warden, and Duxford are the ONLY places in my opinion that are safe. They are both extremely well used, and the home of a vast amount of our heritage. The suggestion that Dunsfold could become a Warbird restoration base is simply not practical, given the ones that we already have, which are coping very well with our Aviation Heritage. If Old Warden or Duxford come under threat, then I can assure you that there will be protesters in droves about proposals to build, because they are both well known to Joe Public. Anything that is underutilised and not so well known will inevitably be in some danger, I'm afraid.
Slight thread drift, Mr. Kenyon, I'm sorry to have only discovered your helicopter displays a few years ago. Brilliant, and always the benchmark for future displays. A ver happy retirement to you, Sir.