Lee,
I am working as a 'Volunteer' at RIAT this year and like the others say, I think you are too late this year as the paperwork was done literally months ago.
Accommodation on base, even for volunteers, is virtually non-existant and therefore most are either being accommodated off site, or like me are opting for a tent in the staff camp site.
For the last few years howver, I have camped in the official RIAT campsite known as "Kempsford Camping". They have two sites, Reevey & Middle Farm - I recommend the former. They charge £10.00 per night and can be contacted on 01285 810255.
Hope this helps.
"Skylark"
