RAF Tilshead

I am trying to find the actual location of RAF Tilshead where 225 Sqn flew Lysanders in 1940. I wrote to the RAF Museum and they sent me a couple of references which I had already found on the net. From a satellite the long thin field where the pin is stuck does look like an air strip, unfortunately it is actually the side of a fairly steep hill that I run up on Saturday mornings and defiantly not the place of choice for a permanent grass strip. Anybody got an actual Lat/Long or grid.

Any other info on RAF Tilshead would be appreciated.

Thanks,

Malt