military vessel; war fleet
submarine; submersible vessel
skipper (of a boat); coxswain
kyōtei; boat race; hydroplane racing event and gambling sport in Japan
submarine; midget submarine
ship; boat; vessel; craft
special purpose submarine (esp. Japanese midget submarines used in WWII)
military transport vessel
rowing course; rowing centre (center)
Sparviero-class patrol boat
Tiger-class fast attack craft
Orkan-class fast attack craft
Gepard-class fast attack craft
Albatros-class fast attack craft
Helsinki-class missile boat
Hamina-class missile boat