EntityQ11707052· pop 8· linked from 21 articlesSM U-91Sign in to saveConnectionsmetric horsepowerEntitygross register tonnageEntityUnited StatesCountryFranceCountrySpainCountryNorwayCountryUnited KingdomCountryPortugalCountryWorld War IConceptInternational Standard Book NumberEntityRussian EmpireCountrysubmarineEntityGerman EmpireEntitywattEntityKingdom of ItalyEntitytonneEntitytorpedoEntityknotEntitynautical mileEntitydraftEntityCategories1917 shipsGerman Type U 87 submarinesShip infoboxes without an imageShips built in DanzigU-boats commissioned in 1917World War I submarines of Germany