During latter stages of WW2, 156 Sqn Lancs PFF and 139 Sqn Mossies were stationed there. There's a stone memorial on the roadside near an entrance to the camp. There is a company (Turbine something or other) now utilising some of the hangars - they overhaul gas turbines. I drove in and had a snoop around a while ago. On youtube there's an 8 mins film called I think 'Lanc mainforce take off' It features genuine WW2 colour footage of lancs, some of it shot at Upwood and I think tother station is probably Hemswell in Lincs........