This is a great thread and sincere thanks for everyone who contributed to the information. I read it all in one hit, fascinating
The thing that has crossed my mind more than once is what the submariners were expected to do with their adult urges? 80 days with no women!

I guess atleast in port it would help the lesser desirable women to pickup a hot sailor date as I cant say I'd have any sort of standards left from 80 days without

Does she have a heartbeat? CHECK! Prepare to dive!
I wonder if it would be possible for people who've been on subs in a navy to talk about these issues in a way that doesnt attract the moderators wrath? From a tactical sense I seriously submit that the lack of sex in young males could have tactical drawbacks to their performance in operations.
The other issue I could see coming out of all this, is say young sailor has his liberty and runs a mock in the pubs, is too drunk to hookup a local woman, gets coerced by a local prostitute and he goes with that, when he manages to stumble his way back to the boat he's now got a sexually transmitted disease that will effect his performance on operations
For some reason it seems never to get discussed in submarine books that I've seen