Icecapades.
Geriaviator,
With much the same total as yours, can only think of one occasion when I was seriously troubled by ice, but that was rather odd.
After our 30-minute exercises up high in the T7, we were strongly advised to get down on the ground as quickly as possible. It seems that the airframe, perspex and front panel would be "soaked" in cold from the -50 degrees up there. If you came down slowly into warmer and more humid air, hoar frost would be apt to form inside the perspex and front panel (IIRC, not heated in any way). as fast as you could scrape it off. This left you blind.
It happened to me one day and was quite frightening. There was, I'm fairly sure, a small openable panel just to the left of the front screen. I didn't open it (think of the draught !), but scrabbled a small hole about 6 in wide, just enough to fly a circuit and put it down. Of course, if I'd had plenty of fuel, it would have been no problem, I'd just hang around for ten minutes to let it melt. But I didn't have ten minutes !
I've never been able to understand how you could "beat the frost to it" in this way, but you could (it's counter-intuitive). Can any reader enlighten me ?
Danny.