Boyky () was one of 29 s (officially known as Project 7) built for the Soviet Navy during the late 1930s. Completed in 1939, she was assigned to the Black Sea Fleet. After the start of the German invasion of the Soviet Union (Operation Barbarossa) in June 1941, the ship helped to lay minefields off Sevastopol. During the Siege of Odessa, "Boyky" transported troops and supplies while providing naval gunfire support to the defenders and then helped to evacuate them in October. During the Siege of Sevastopol, she performed the same sorts of missions and then participated in the Battle of the Kerch Peninsula at the end of 1941.