RAF NORTH COATES
I have heard this story before, but as far as I am aware there were no Robin Hangars at North Coates. There were four Bellmans and four which are incorrectly described as the Type F. There was a large workshop type building at one end of the bomb dump which was basically an open ended large nissen hut type structure where some engine maintenance was undertaken. This was dismantled in the 1960s and now serves as a workshop in North Cotes village.
This could be the one your friend describes.
There is also a large lagoon on the seaward side of the sea wall where rumour has it four Rolls Royce Merlins were dumped along with most of the camps rubbish.
Before the RAF left North Coates a metal detector sweep was conducted by the Army bomb disposal which revealed a lot of underground anomolies, some of which was removed, mostly unstable ammo. They didn't get everything though and ordnance and bits of aircraft are regularly ploughed up on the part of the airfield which is now farm land. No tool kits though
Thanks for your input