The Antey design represented the highest achievement of Soviet nuclear submarine technology. They are the second-largest cruise missile submarines ever built, after some ballistic missile submarines were converted to carry cruise missiles in 2007. It was built to defeat an entire United States aircraft carrier group. A single Type 65 torpedo carried a warhead powerful enough to sink an aircraft carrier. Both missiles and torpedoes could be equipped with nuclear warheads. She was longer than the preceding Oscar I-class of submarines. The senior officers had individual staterooms and the entire crew had access to a gymnasium.