I was 7 years on Victor K1's and never knew anything of this TTN. Perhaps it was because I was only a [pilot and was expected just to do what my Nav told me. What a relief, it would have meant I would not have had to think.
Now that's odd
PONTIFEX, because I was talking about this with my old plotter, who was obviously a contemporary of ours, and he has no recollection of this either. I am now beginning to think that at some stage I was abducted by aliens and had the whole thing implanted in my brain as a false memory. Unless someone else who was at Marham around the same time can put my mind to rest!