U17 (S196)
U35 (S185)
UCT Everad
Uilenspiegel
UK.48 Nova Cura
UK.61 Neeltje
UK.73 Frisian
UK.135 Cornelis-Trijntje
UK.145 Teunis van Atje
UK.146 Elizabeth
UK.236 Deo Volente
UK.307 Jacoba
Undine
Unicum
Union 5
Union 6
Union 6 (new colors)
Union 7
Union 8
Union 8 (new colors)
Union 11
Union Amber
Union Beaver
Union Boxer
Union Coral
Union Coral (new colors)
Union Diamond
Union Elisabeth
Union Emerald
Union Gold
Union Grizzly
Union Jade
Union Lynx
Union Manta
Union Moon
Union Neptune
Union Onyx
Union Pearl
Union Pearl (new colors)
Union Ruby (cargo)
Union Ruby (tug)
Union Sapphire
Union Silver
Union Titan
Union Topaz (cargo)
Union Topaz (tug)
Union Wrestler
Uniwind
Urania
Uranus
Uranus (survey)
Ursine
Ursula Essberger
Uruguay Star
Usedom