In 1941 Lunin commanded the Shch class submarine Shch-421 with Fyodor Vidyayev as his second in command. He carried out several successful patrols in this boat, sinking a German transport. In 1942 he was given command of the new K class submarine , K-21. The K-21 made an unsuccessful attack on the German battleship Tirpitz in June 1942. He subsequently carried out further patrols in Arctic...