The Soviet Typhoon-class submarine displaced 48,000 tons and stretched 574 feet, making it the largest nuclear submarine ever built. Its unusual design used five pressure hulls, creating room for a ...

Built by the Soviet Union between 1976 and 1989, the Typhoon-class submarine displaced 48,000 tons and was designed to patrol beneath Arctic ice. Its five pressure hulls created room for a crew of 160 ...