Teeters
Plus ca change mais ...
I can't give you accurate start/finsish dates, but you'll be amused to hear than RN EFTS while based at Leeming in the 70s/80s (I went through in 79), deployed daily to Topcliffe, to keep the tyro naval aviators out of the way of the grown-ups.
We did study Morse at BRNC, but not to 12 wpm - more like 5 I'd guess ...