When I was on HMCS Charlottetown from 1996-2001, I was onboard for 56 months, away from Halifax for 39.
In 2005, on HMCS Montreal, I was at sea for 9 months.
Last year, with the ship in refit, I sailed for about a week in December, bringing the ship out of refit for sea trials.
So far this year, I've been at sea for 5 weeks, and if I'm still aboard in the summer, it could be 2 months of sailing between May and the end of July.
Last year wasn't busy.
2005 was VERY busy.
2006, I think I was at sea for about 4-5 months. I don't remember. Kind of a blur.
Depends on the ship, and it's programme.
NS