Thanks to my respondents. I shall shortly be going to a Met. reunion which will include a lot of chaps of both FY and Bawtry. I will ask for their inputs and, if I trawl anything, report back.
Its a bugger: I know where I was 1970-75, but the details are less than clear. For example, I seem to recall that Met. moved from a classical front of hangar location to the Air Electronics block. Perhaps I was on day duties [lecturing] but darned if I can remeber the inevitable turmoil of the move. On my keyring I still have a brass disc inscribed "Hangar ablutions airmen" goodness knows how I came by that!