The British submarine of Type S “Sunfish” (S 81) in the spring of 1944 was transferred to the Northern Fleet as reparations from Italy and renamed to B-1.
May 30, 1944 B-1 was adopted by the Soviet crew of the submarine L-20 of the Hero of the Soviet Union, captain II rank I. Fisanovich. On July 25, 1944, B-1 left Lerwick for Polyarny, however, it did not go on communication any more and did not arrive at its destination. According to the main version of the B-1 deviated from the route and on July 27, 1944 was mistakenly destroyed by the Liberator airplane from the 86th Squadron of the British Air Force Coastal Command. Together with the Soviet submarine, 50 crew members were killed.
Location: Lerwick, United Kingdom
Date: May 1944