german submarine german submarine type boat nazi_germany kriegsmarine operated world war conducted war patrols short career 6th boat flotilla 2nd flotilla sank enemy vessels total gross register tons grt captured total grt damaged grt february hit depth charges british class destroyer sinking enemy merchant vessels sunk south coast ireland crew members lost boat construction ordered kriegsmarine november violation treaty versailles laid november bremen yard number launched january commissioned april year command adolf design 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 service kriegsmarine sank commercial ships gross register tons grt damaged commercial vessel grt captured ships totalling grt 1st patrol left wilhelmshaven august world war began patrol involved traveling far south portugal entering north_sea british isles patrol ships captured finnish tons ton returned wilhelmshaven arriving september 2nd patrol left wilhelmshaven command november november ton british vessel ton norwegian ship sunk torpedoes ton british merchant vessel went 19th enemy vessel sunk french vessel displaced total tons sunk single torpedo november boat returned port december 3rd patrol left port january command final patrol enemy ship sunk damaged attacks took place february ship hit ton dutch vessel damaged ton british ship sunk return home port sunk day fate following attacks february attacked british class destroyer depth charges hit sunk south coast ireland crew members lost boat attack summary raiding history
German submarine U-41 (1939)