This German-built, ex Royal Norwegian Kobben-class submarine "Utstein" is now museum ship in Horten at the Naval museum. She was in service 1965 - 1990. Eight torpedo tubes, 533 mm. with possibility for a variety of torpedoes: T1, Mk-37 Mod 1/2, Tp 61, Tp 612, Tp 613. The torpedo on picture, down, right side, is a Mark 37 Torpedo.