Helpful stacker said
HH93 - Those are RAF OOA Bowsers and given the age of the imagery they were most likely there to support Op Bolthole.
Don't quite know why I've let myself get drawn into a BFI/bowser spotting post but HS's comment made me wonder....................if the tankers were there to support Op BOLTHOLE, where are the boltholers? I can't see any sign of aircraft on base and assuming it would have been the Brize bolthole we'd probably be able to see the odd frame or two!
No tankers visible on street view so they obviously aren't there all the time. What gives? Why do I care? Actually I don't - but I do like a bit of a puzzle - bet someone knows the answer.