EntityQ753378· pop 9· linked from 13 articlesSM U-1Sign in to save1909 U-1-class submarineConnectionsU-1-class submarineEntityGermanEntityViennaEntityWorld War IConceptZagrebEntityUnited States dollarEntityInternational Standard Book NumberEntityAegean SeaEntityAustria–HungaryEntitysubmarineEntityTriesteEntitykilometreEntityAnnapolisEntitywattEntitymileEntityBridgeportEntityPulaEntityCorfuEntityelectric motorEntityKingdom of ItalyEntityCategories1909 shipsShips built in PolaU-1-class submarinesU-boats commissioned in 1911World War I submarines of Austria-Hungary