 Duncan was assigned to Escort Group B @-@ 7 in the North Atlantic after her conversion was complete in May 1943 . She escorted a number of convoys before she required a lengthy refit from November to May 1944 . She helped to sink two German submarines in October 1943 . The ship was assigned to anti @-@ submarine duties in the Western Approaches after her refit was finished in May 1944 , and Duncan remained there until April 1945 . At that time she was transferred to coastal anti @-@ submarine patrols to counter any last @-@ gasp effort by the Kriegsmarine to interfere with the Allied supply lines to the Continent . Placed in reserve the following month , Duncan was in bad shape and was sold for scrap later that year . The demolition , however , was not completed until 1949 . 
