Naval convention is you serve 'in' a ship.
An occasional exception - spoken or written - in where the ship's name mixes poorly with 'in'. Thus "...had two years in DIDO and then a short stint on ACTIVE before..." - the latter avoiding the implication of 'in-active' (ACTIVE and OPPORTUNE are two names that come to mind). Using in versus on isn't a hard-and-fast rule but to avoid be thought a landsman, when amongst (Naval) mariners 'in' is the better choice.
Linked to this, ships in the Navy are referred to as 'ships', never as 'boats' - the latter being slightly insulting. However, submarines are correctly referred to as 'boats' not ships (as to why, I don't know).
You serve aboard a ship.
You Serve IN a Royal Navy Warship or Shorebase but are, once up the Gangway, or throught the main gate, either onboard or aboard each one as you prefer.
The WW2 Movie about Lord Mountbatten's Warship HMS Kelly was called 'In Which We Serve'
A common error is also to write or say 'the HMS Whatever' It should either 'HMS Whatever' or 'The Whatever' with the capital T in 'The'. You would not write or say 'the Her Majesty's Ship Whatever'
To serve as the ship's naturalist
impressment
HMS Erebus
impressment
Dating in adolescence can serve various functions, including emotional support, companionship, gaining experience in social interactions, exploring one's identity and values, and learning about intimacy and relationships. It can also help adolescents develop communication skills, manage emotions, and practice healthy boundaries.
A banyan day is a day of the week where galley kitchens would serve no meat on board ship - or a picnic or cookout for a ship's crew.
The ship steward is basically the cook of the ship.They prepare the food,and serve all crewmembers. They also make the menu for the ship.
I think it was a cruiser, in the Canadian Navy.
its maiden voyage was on December 22nd 1915 from Southampton bound for the Mediterranean to serve as a hospital ship for wounded troops
Shanghaiing refers to the practice of kidnapping people to serve as sailors.
USS BELLEAUWOOD (LHA-3) but other ships could be seen in the background.
BB-61 Iowa