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Soviet submarine B-871
Ab podlodka.jpg
Career (Russia)
Name: Alrosa
Commissioned: 1990
Status: Active
General characteristics
Displacement: Surfaced: 2,300-2,350 tons
Submerged:3,000-4,000 tons full load
Length: 74 m
Draft: 6,5 m
Propulsion: Diesel-electric propulsion
2 x 1000 kW Diesel generators
1 x 5,500-6,800 shp Propulsion motor
1 x fixed-pitch Propeller
Speed: Surfaced: 10-12 knots
Submerged: 17-25 knots
Test depth: 300 m
Complement: 52
Armament: 6/553 mm torpedo tubes
18 torpedoes
24 mines
8 SA-N-8 Gremlin or 8 SA-N-10 Gimlet Surface-to-air missiles

Russian submarine B-871 Alrosa is an diesel-electric Kilo-class submarine that joined the Soviet Fleet in 1990 and is active with the Russian Black Sea Fleet as of 2011.

In June 2011 she took part in a NATO submarine rescue exercise, 'Bold Monarch 2011,' the first Russian submarine to do so.[1]

Instead of a conventional propeller Alrosa uses a pump jet propulsion system.[2]


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