Good luck - a mate of mine from schooldays was one of HM's nuclear sub commanders, and then ended up as Dartmouth commodore before retiring and taking over as harbourmaster of a Devon port. His nuclear engineer worked for me and was nuts, 6ft 4 (in a sub), full set, drunk like as fish (as in over 15 a night) and his hobby was blasting ducks out of the sky in the Dee Estuary.
FV and I met up, the debate whether the sub had considered putting Simon in one of the tubes, the decision to flood it or expedite him towards the Russians......