Don't you have to be under 5'7" tall to be on a submarine?
Yeah, they told us in sub school that there was a height maximum... Total BS - one of the enginemen was at least 6'3"+. Hell, I was only about 5' 9" at the time and it STILL took me a couple weeks to remember where/when to duck my head..
Personally, I loved being on subs - but I was also on board one when the Scorpion was lost... Lotta quiet crewmembers on our boat that week..