Displacement, tons: 13,900 surfaced; 18,300 dived
Dimensions, feet (metres): 505.2 × 59.7 × 29.5 (154 × 18.2 × 9)
Main machinery: Nuclear; 2 VM-5 PWR; 380 MW; 2 GT3A turbines; 98,000 hp(m) (72 MW); 2 shafts; 2 spinners
Speed, knots: 28 dived; 15 surfaced
Complement: 107 (48 officers)

Missiles: SSM: 24 Chelomey SS-N-19 Shipwreck (Granit) (improved SS-N-12 with lower flight profile); inertial with command update guidance; active radar homing to 20-550 km (10.8-300 n miles) at 1.6 Mach; warhead 750 kg HE or 500 kT nuclear. Novator Alfa SS-N-27 may be carried in due course.
A/S: Novator SS-N-15 Starfish (Tsakra) fired from 53 cm tubes; inertial flight to 45 km (24.3 n miles); warhead nuclear 200 kT or Type 40 torpedo.
    Novator SS-N-16 Stallion fired from 65 cm tubes; inertial flight to 100 km (54 n miles); payload nuclear 200 kT (Vodopad) or Type 40 torpedo (Veder).
Torpedoes: 4-21 in (533 mm) and 2-26 in (650 mm) tubes. Combination of 65 and 53 cm torpedoes (see table at front of section). Total of 28 weapons including tube-launched A/S missiles.
Mines: 32 can be carried.
Countermeasures: ESM: Rim Hat; intercept.
Weapons control: Punch Bowl for third party targeting.
Radars: Surface search: Snoop Pair or Snoop Half; I-band.
Sonars: Shark Gill; hull-mounted; passive/active search and attack; low/medium frequency.
    Shark Rib flank array; passive; low frequency.
    Mouse Roar; hull-mounted; active attack; high frequency.
    Pelamida towed array; passive search; very low frequency.

Programmes: There is some doubt whether K 530 will be completed. Name/Number attribution is still uncertain, and Omsk may have been renamed Petropavlosk Kamchatsky.
Structure: SSM missile tubes are in banks of 12 either side and external to the 8.5 m diameter pressure hull; they are inclined at 40º with one hatch covering each pair, the whole resulting in the very large beam. The position of the missile tubes provides a large gap of some 4 m between the outer and inner hulls. Diving depth, 1,000 ft (300 m) although 2,000 ft (600 m) is claimed.
Operational: ELF/VLF communications buoy. All have a tube on the rudder fin as in Delta IV which is used for dispensing a thin line towed sonar array. Pert Spring SATCOM. K 173, K 410, K 266 and K 141 are based at Litsa South in the Northern Fleet and the remainder at Tarya Bay in the Pacific. In 1999 one Northern Fleet unit deployed for the first Russian SSGN patrol in the Mediterranean for ten years. At the same time a Pacific Fleet unit sailed to the western seaboard of the United States. The first three of the class K 148, K 132 and K 119 are laid up awaiting disposal . The only two Oscar Is are laid up in the Northern Fleet.

OSCAR II (6/1998*)

OSCAR II (3/1998)

OSCAR II (9/1996)

OSCAR II 3/1998

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