Small world.
I wondered if there might be a link but it wasn't the one I wondered about.
I knew you were a rotary man and wondered if you might have been at CFS(H) when it was at Tern Hill.
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Off topic, but perhaps of interest ....
The 1940 Miles M14A Hawk Trainer (Magister) in the first photograph is still flying. (Real Aeroplane Company, Breighton.)
After Elementary Flying Training in the Magister pilots progressed to advanced training in the Harvard
and then to front line flying in the Hurricane or Spitfire.