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Oscar II class

Nuclear-powered cruise missile submarine

Oscar II class SSGN

The Oscar II class boats are the largest attack submarines ever built

 
 
Entered service 1986
Crew 107 men
Diving depth (operational) 500 m
Diving depth (maximum) 830 m
Sea endurance 120 days
Dimensions and displacement
Length 154 m
Beam 18.2 m
Draught 9 m
Surfaced displacement 13 900 tons
Submerged displacement 18 300 tons
Propulsion and speed
Surfaced speed 16 knots
Submerged speed 28 knots
Nuclear reactors 2 x ?
Steam turbines 2 x ?
Armament
Missiles 24 x P-700 Granit (SS-N-19 Shipwreck) cruise missiles
Torpedoes 2 x 650-mm and 4 x 533-mm torpedo tubes for torpedoes and anti-ship missiles

 

   The Project 949A Antey, known in NATO as the Oscar II class is a successor to the previous Oscar I class. Out of 19 planned boats 11 were built at Severodvinsk. Three more boats are incomplete, however it is unlikely that these will ever be commissioned. Active Oscar II class submarines are in service with the Northern and Pacific fleets. Currently these are among the most capable Russian submarines.

   The Oscar II class has a lengthened hull by some 10 m, possibly for a quieter propulsion and upgraded electronic systems, and an enlarged fin, which improves underwater maneuverability. These boats are the third largest submarines in terms of displacement and length. Only the Soviet Typhoon class and American Ohio class boats are larger. However these are still the largest attack submarines ever constructed.

   These cruise missile boats were designed to attack US aircraft carrier battle groups and coastal installations.

   The Project 949A Antey is a double-hulled design, which comprises an inner pressure hull and outer hydrodynamic hull. Separation between both hulls provides significant reserve of buoyancy and improved survivability against torpedoes. The outer hull has a weak magnetic signature, which prevents detection by Magnetic Anomaly Detection (MAD) systems. The reinforced sail is intended to break through the Arctic ice.

   The Oscar II class SSGNs are armed with 24 P-700 Granit (NATO designation SS-N-19 Shipwreck) supersonic cruise missiles with a range of 550 km. Missile tubes are arranged in two rows with the launchers are placed between the inner and outer hulls and inclined at an angle. Missiles are launched while the submarine is submerged. A warhead of this missile weights 1 000 kg. Under the START treaty nuclear warheads of these missiles have been replaced with high explosive.

   These submarines are also fitted with two 650-mm and four 533-mm torpedo tubes, capable of launching both torpedoes and anti-ship missiles. These include the SS-N-16 Stallion anti-ship missiles with a range of 50 km, carrying torpedoes, nuclear warheads or nuclear depth charges for use against surface ships or submarines.

   The Oscar II class boats are fitted with a floating antenna buoy to receive satellite navigation signals, target designation data and radio messages at a great depth and under the ice.

   Submarines of this class are powered by two pressurized water nuclear reactors, powering two steam turbines. These large boats are slow to dive and to maneuver, however they have a submerged speed of about 30 knots, which is sufficient to keep pace with their targets. Sea endurance is limited only by food supplies.

   The famous Kursk was lost with all hands in the Barents sea in 2000. It was one of the first boats completed after the fall of the Soviet Union and was part of the Russian Northern fleet.

 

Name Laid down Launched Commissioned Status
Krasnodar (K-148) 1982 1985 1986

inactive, to be scrapped

Krasnoyarsk (K-173) 1983 1986 1986

inactive, to be scrapped

Irkutsk (K-132) 1985 1987 1988

inactive, in overhaul

Voronezh (K-119) 1986 1988 1989

active, in service

Smolensk (K-410) 1986 1990 1990

inactive, in overhaul

Chelyabinsk (K-442) 1987 1990 1990

inactive, in reserve

Tver (K-456) 1988 1991 1992

active, in service

Orel (K-226) 1989 1992 1992

active, in service

Omsk (K-186) 1989 1993 1993

active, in service

Tomsk (K-526) 1991 1996 1996

inactive, in repairs

Kursk (K-141) 1992 1994 1994

lost with all hands

Belgorod (K-139) 1992 ? -

incomplete

Volgograd (K-135) 1993 ? -

incomplete

Barnaul (K-160) 1994 ? -

incomplete

 

 

Video of the Oscar II class cruise missile submarine

 

 
Oscar II class SSGN

Oscar II class SSGN

Oscar II class SSGN

Oscar II class SSGN

Oscar II class SSGN

Oscar II class SSGN

Oscar II class SSGN

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