Tango-class Hunter-Killer Submarine

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The Project 641B Tango-class was a class of diesel-electric submarines that were built in the Soviet Union to replace the Foxtrot-class submarines assigned to the Black Sea and Northern Fleets. The Soviet designation of this class was Project 641B and it was also known as the Som (Catfish) class. The first of the class was completed in 1972 at Gorky. A total of eighteen were built in two slightly different versions. The later type was several meters longer than the first, possibly because of the installation of ASW missile equipment.

The bow sonar installations appear to be similar to those fitted to Soviet nuclear attack submarines. The propulsion plant was the same as the last subgroup of the Foxtrot-class. The Tango-class had far more battery capacity, far higher than any previous conventional submarine class in the Soviet Navy; as a result, pressure hull volume increased. This allowed an underwater endurance in excess of a week before snorkeling was required.

Coupled with new armament and sensor fit, the Tango-class were ideal for ambush operations against Western nuclear submarines at natural chokepoints.

Because of its all-hull rubber coating, the sub class was nicknamed "rezinka" (rubber).

Unit Run[edit | edit source]

  • B-443
  • B-474
  • B-437
  • B-498
  • B-515 - museum-ship in Hamburg, Germany
  • B-519
  • B-290
  • B-303
  • B-146
  • B-546
  • B-30 - museum exhibit in AvtoVAZ Museum
  • B-215
  • B-396 - museum-ship at Moscow Navy Museum
  • B-307 - museum ship at Togliatti Museum of Technology in Samara, Russia
  • B-319
  • B-225
  • B-312
  • B-380