One thing I don't quite understand from these ranges comes from the one at Stanton Harcourt. It's in what appears to be a former gravel pit, significantly below the level of the road - indeed so much so that to reach it you have to scramble down a bank and with 50+ years of mature trees surrounding it it has become nearly invisible from the air and from the surrounding land. In the case of Stanton Harcourt I couldn't see an obvious way that they could have got an aircraft down in front of the range, apart from being in a pit it's close to the perimeter and faces away from the airfield. Were they all used to adjust the weapons while fixed to the aircraft?
Flash earth of the Stanton Harcourt range here:
http://www.flashearth.com/?lat=51.734372&lon=-1.40629&z=19.6&r=0&src=ggl
I have a photo of one end of it on my www site but the undergrowth made it difficult to get a proper shot.