Aren't those listed in the 'Names' files (English, French, GermanNames.cfg) in the Sea folder? Such as:
;Silent Hunter 3
BBBismarck=Bismarck Battleship
BBKingGeorgeV=King George V Battleship
BBNelson=Nelson Battleship
...
FFBlackSwan=Black Swan Frigate
FishingBoat=Fishing Boat
FishingBoat1=Small Coastal Vessel
FishingBoat2=Trawler
...
I am not 100% certain of that, not having noodled in SH3 modding for quite some time. I also am not certain it will do what you want... The use of a mini-mod is called for here... lol
