This thread has been a pleasure to read over the last however long. Brought back some cracking memories! My gliding was all done in Barges, as I recall, and we flew from Scampton, Lindholme and even Kirton-in-Lindsey I believe. Happy days!
Talking of winches, I seem to remember that Humber Club-type winch, and the dates would tie up, but I also remember one which was installed in an old Routemaster double-decker bus. Was that the one at Kirton?
If I could only find my old 3822...