EntityQ824574· pop 7· linked from 60 articlesSM UB-4Sign in to save1915 Type UB I submarineConnectionsImperial German NavyEntitygross register tonnageEntityFlanders U-boat flotillasEntityUnited KingdomCountryGreeceCountryBelgiumCountryGermanEntityAmsterdamEntityHamburgEntityMontevideoEntityradioEntityBordeauxEntitygeographic coordinate systemEntityRotterdamEntityInternational Standard Book NumberEntityAntwerpEntityHerbert HooverEntityOxfordEntityKielEntitysubmarineEntityCategories1915 shipsGerman Type UB I submarinesMaritime incidents in 1915Ships built in BelgiumShips built in KielU-boats commissioned in 1915U-boats lost with all handsU-boats sunk by British warshipsU-boats sunk in 1915World War I shipwrecks in the North SeaWorld War I submarines of Germany