Soviet submarine k-21 in Kola Bay. Soviet submarine k-21 in Kola Bay. Shortly before that, July 5, 1942, the submarine had attacked the battleship Tirpitz and four torpedoes were fired; submariners had not seen the result of the attack, but heard two strong explosions and boat Commander Nikolai Lunin reported on the torpedoing of the battleship that was accepted by the command. However, in the German documents there is no evidence that the “Tirpitz” this day has been damaged.
