Oscar-class submarine

Oscar II class

K-150 Tomsk in Vilyuchinsk
Class overview
Name	Oscar II class
Builders	Sevmash
Operators	Soviet Navy  Russian Navy
Preceded by	Papa class Charlie class
Succeeded by	Yasen class
Built	1975–present
In commission	1980–present
Planned	20 (2 949, 18 949A)[1]
Completed	14 (2 949, 11 949A, 1 09852)
Cancelled	6 (2 incomplete, 4 never laid down)
Active	6 (+2 on modernization to 949AM)[2]
Laid up	2[3]
Lost	1
Retired	4
General characteristics
Type	Nuclear cruise missile submarine
Displacement	12,500/14,700 tonnes surfaced 16,500/19,400 tonnes submerged[1]
Length	155 m (508 ft 6 in)[1] maximum
Beam	18.2 m (59 ft 9 in)
Draught	9 m (29 ft 6 in)
Installed power	2 × pressurized water cooled reactors, HEU ≤ 45%[4]
Propulsion	2 × steam turbines delivering 73,070 kW (97,990 shp) to two shafts
Speed	15 knots (28 km/h; 17 mph) surfaced 32 knots (59 km/h; 37 mph) submerged[1]
Endurance	120 days[1]
Test depth	600 m
Complement	94/107[1]
Armament	4 × 533 mm (21.0 in) and 2 × 650 mm (26 in) torpedo tubes in bow 28 × 533 mm and 650 mm weapons, including RPK-2 Vyuga (SS-N-15 Starfish) anti-submarine missiles with 15 kt nuclear warheads and RPK-6 Vodopad/RPK-7 Veter (SS-N-16) anti-submarine missiles with 200 kt nuclear warhead or Type 40 anti-submarine torpedo or 32 ground mines 24 × P-700 Granit (SS-N-19 Shipwreck) cruise missiles with 750 kilograms (1,650 lb) HE or 4 × 100 Mt Poseidon drones

The Oscar class, Soviet designations Project 949 Granit and Project 949A Antey (NATO reporting names Oscar I and Oscar II respectively), are a series of nuclear-powered cruise missile submarines designed in the Soviet Union for the Soviet Navy. First built in the 1970s, six remain in service with the Russian Navy. Two other vessels were slated to be modernized since at least 2017 as Project 949AM, to extend their service life and increase combat capabilities but it is unclear whether work continues as of 2023.

The Project 949 submarines were the largest cruise missile submarines in service until some Ohio-class ballistic missile submarines were converted to carry cruise missiles in 2007. They are the fourth largest class of submarines in displacement and length. Only the Soviet Typhoon-class, Russian Borei-class and American Ohio-class ballistic missile submarines are larger.