page_title: Russian submarine B-871
hierarchical_section_title: Russian submarine B-871
caption_attribution_description: Русский: Подводная лодка Б-871 «Алроса» в Севастополе.
context_page_description: 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.
  Instead of a conventional propeller Alrosa uses a pump jet propulsion system.
context_section_description: 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.
  Instead of a conventional propeller Alrosa uses a pump jet propulsion system.
caption: B-871 Alrosa in 2006
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