german submarine german submarine type boat nazi_germany kriegsmarine world war short career sinking enemy vessels damaging victories took place period war patrols sortie boat sank enemy vessels damaged second patrol sank enemy ships sunk october southwest depth charges british warship crew officers men died attack survived construction design construction ordered built kriegsmarine august violation treaty versailles keel laid february bremen yard number following seven months construction launched september commissioned december command design german type submarines slightly larger original german type submarines later designated displacement tonnes long tons surface tonnes long tons submerged boat total length pressure hull length beam height draught submarine powered man stroke cylinder diesel engines producing total metric horsepower shp use surfaced double acting electric motors producing total metric horsepower shp use submerged shafts propellers boat capable operating depths metres submarine maximum surface speed knots mph maximum submerged speed knots mph submerged boat operate nautical miles knots mph surfaced travel nautical miles knots mph fitted torpedo tubes fitted bow stern torpedoes naval gun rounds anti aircraft gun boat complement service history patrol went sea war patrol time period days north_sea eventually north_atlantic far west nova scotia search allied convoys heading great_britain time encountered enemy vessels confrontation took place 13th days leaving port came british merchant vessel sank south iceland submarine came tanker fired torpedo causing damage hull failing sink days later sank second enemy vessel patrol south greenland victories boat returned port instead returning wilhelmshaven entered port occupied france july second patrol loss left august travelled south west coast africa turned west eastern coast brazil waters boat sank enemy merchant ships merchant vessel torpedoed september north brazil crew survived attack boarded life boats questioned crew boat given food released crew later safely picked spanish merchant vessel days later sank fourth enemy vessel british motor merchant ship brazil september involved action bay cape_verde islands having ordered rendezvous boats struck british submarine hms clyde accidentally unsuccessfully attacking badly damaged left unable dive obliged head home october hunted sunk depth charges british anti submarine hms southwest crew men died including survived subsequently interrogated time prisoners war captured boat operating took west june summary raiding history
German submarine U-111 (1940)