|Preceded by:||K class|
|Succeeded by:||Foxtrot class|
|Displacement:||1875 tons surfaced
2387 tons submerged
|Length:||90 m (295 ft)|
|Propulsion:||3 diesel engines (6000 hp)
3 electric motors (5400 hp)
|Speed:||Surfaced: 18 knots (33 km/h)
Submerged: 16 knots (30 km/h)
|Test depth:||200 m (656 ft)|
|Complement:||70 officers and men|
|Armament:||6 bow and 4 stern 533-mm (21-inch) torpedo tubes
6 of the submarines were equipped with R-11FM Scud missiles
The Soviet Navy's Project 611 (NATO reporting name: Zulu class) were one of the first Soviet post-war attack submarines. They were roughly as capable as the American GUPPY fleet-boat conversions. They were a contemporary of the Whiskey class submarines and shared a similar sonar arrangement. Their design was influenced by the German Type XXI U-boat of the World War II era.
The first few boats of the class were equipped with twin 57mm and twin 25mm anti-aircraft guns, although these were removed soon after the boats entered service. Six were converted in 1956 to become the world's first ballistic missile submarines, one armed with a single R-11FM Scud missile and five others with two Scuds each. They were designated as Project AV 611 and received the NATO reporting name of Zulu V. The missiles were too long to be contained in the boat's hull, and extended into the enlarged sail. To be fired, the submarine had to surface and raise the missile out of the sail. Soviet submarine B-67 successfully launched a missile on 16 September 1955.
- Norman Polamr and K. J. Moore, 'Cold War Submarines,'
- Sean Maloney, 'To Secure Command of the Sea,' University of New Brunswick thesis 1991, p.315
- Polmar, Norman; Kenneth J. Moore (2003). Cold War Submarines: The Design and Construction of U.S. and Soviet Submarines, 1945-2001. Dulles, VA: Potomac Books. p. 30. ISBN 978-1574885941.
- Polmar, Norman; White, Michael (2010-11-29). Project Azorian: The CIA and the Raising of the K-129. Naval Institute Press. p. 20. ISBN 9781591146902. Retrieved 14 July 2012.
- Globalsecurity.org article
- Deep storm article (Russian)
- Zulu Class submarines - Complete Ship List (English)
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