I'm trying to organise a tour of the former USAF base at Upper Heyford. This is the full "behind the wire" tour including the Weapon storage area, The QRA, Base oprerations, Engine test building and various other buildings. It's run by the Upper Heyford Heritage centre and they can only handle groups of 6 But they suggest that you take a picnic as it takes as long as it takes! The tour costs £25 which goes towards the Heritage centre. They have a Facebook page so have a look and let me know if there is any interest for May or June sort of time.