To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.

Tango-class submarine

From Wikipedia, the free encyclopedia

Tango class submarine.JPG
A Tango-class submarine in the North Atlantic.
Class overview
Name: Tango class (Project 641B)
Builders: Gorky
Operators:  Soviet Navy
Preceded by: Foxtrot class
Succeeded by: Kilo class
Completed: 18
Active: 0
Retired: 15
Preserved: 3
General characteristics
Type: Submarine
  • 3,100 tons surfaced
  • 3,800 tons submerged
Length: 91 m (298 ft 7 in)
Beam: 9.1 m (29 ft 10 in)
Draught: 7.2 m (23 ft 7 in)
  • 3 diesel engines
  • 4.6 MW (6,200 shp)
  • 3 electric motors
  • 3 shafts.
  • 13 knots (24 km/h; 15 mph) surfaced
  • 16 knots (30 km/h; 18 mph) submerged
Complement: 62 men (12 officers)
  • 6 x 533 mm (21.0 in) bow torpedo tubes
  • 24 x 533 mm (21 in) anti-submarine and anti-ship torpedoes or equivalent load of mines
For the pre-1914 submarines also known as the Som class in Russia, see Som-class submarine.

The Tango class was the NATO reporting name of 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 18 were built in two slightly different versions. The later type was several metres 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][citation needed]

Construction of this class has now stopped. The B-380 of the Black Sea Fleet was the last to be decommissioned in 2016 and the scrapping began in Inkerman in 2020.[1]

B-380 had been in layup in Sevastopol Harbor awaiting either refit or scrapping as of 2008, but during the night of December 14–15, 2019 the floating dock PD-16, which contained B-380, sunk. B-380 capsized to port and partially sank, and by 19 December it was still unclear whether the submarine was afloat or resting on the bottom. By 11 May 2020 B-380 was 70% scrapped.

Museum ships

Three 641B-class submarines operate as museum ships:

  • B-307, fully raised on ground - Togliatti Museum of Technology, Samara, Russia
  • B-396, afloat in Tushino reservoir - Moscow Navy Museum
  • B-515, afloat in Baakenhafen in Hamburg - museum in Hamburg

The conning towers of stricken B-319' and B-474 are on display in Polyarny and Ryazan.


  • The Encyclopedia Of Warships From World War Two To The Present Day, General Editor Robert Jackson.

External links

This page was last edited on 26 February 2021, at 18:05
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.