 She served with the 1st U-boat Flotilla from 12 June 1941 for training and stayed with that organization for operations until her loss, from 1 November 1941 to 19 December.The boat departed Kiel on 8 November 1941, moved through the North Sea, negotiated the gap between Iceland and the Faroe Islands and entered the Atlantic Ocean.Just after sinking her only victim, the Royal Navy destroyer HMS "Stanley", she was sunk near Punta Delgada by depth charges and ramming by the British sloop .