Typhoon-class submarine

The Typhoon class, Soviet designation Project 941 Akula (Russian: Акула, meaning "shark", NATO reporting name Typhoon), was a class of nuclear-powered ballistic missile submarines designed and built by the Soviet Union for the Soviet Navy. With a submerged displacement of 48,000 tonnes, the Typhoons were the largest submarines ever built, able to accommodate comfortable living facilities for the crew of 160 when submerged for several months. The source of the NATO reporting name remains unclear, although it is often claimed to be related to the use of the word "typhoon" ("тайфун") by General Secretary Leonid Brezhnev of the Communist Party in a 1974 speech while describing a new type of nuclear ballistic missile submarine, as a reaction to the United States Navy's new Ohio-class submarine.

Typhoon class
Typhoon-class SSBN profile
Typhoon-class submarine TK-17 Arkhangelsk under way
Class overview
NameTyphoon class
BuildersSevmash, designed by Rubin
Operators
Preceded byDelta class
Succeeded byBorei class
Built1976–1989
In commission1981–2023
Planned7
Completed6
Cancelled1
Active0
Laid up3
Retired6
General characteristics
TypeBallistic missile submarine
Displacement
  • 23,200 t (22,830 long tons) surfaced
  • 48,000 t (47,240 long tons) submerged
Length175 m (574 ft 2 in)
Beam23 m (75 ft 6 in)
Draught12 m (39 ft 4 in)
Propulsion
  • 2 × OK-650 pressurized-water nuclear reactors, 190 MWt each, HEU <= 45%
  • 2 × geared steam turbines, 50,000 SHP each
  • 2 shafts with 7-bladed shrouded screws
Speed
  • 22.22 knots (41.15 km/h; 25.57 mph) surfaced
  • 27 knots (50 km/h; 31 mph) submerged
Endurance120+ days submerged
Test depth400 m (1,300 ft)
Complement160 persons
Armament

The Russian Navy cancelled its Typhoon modernization program in March 2012, stating that modernizing one Typhoon would be as expensive as building two new Borei-class submarines. With the announcement that Russia has eliminated the last R-39 Rif (SS-N-20 Sturgeon) SLBMs in September 2012, only one Typhoon remained in service, Dmitriy Donskoi, which refitted with the more modern RSM-56 Bulava SLBM for testing. She continued to serve until February 2023, when she was decommissioned.

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