Combat Capability [42%],
Role and Missions,
Structure of the Navy,
in-service ships, surface ships, submarines, chronology.
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AS-21
Project 1851 special purpose nuclear submarine.
AS-21 is a Project 1851 special purpose nuclear-powered submarine.
REGISTRATION
Northern Fleet, Olenya BayCONSTRUCTION
The submarine was laid down on December 26, 1984 at Sudomekh shipyard (Leningrad); launched on April 29, 1991; commissioned into Northern Fleet on December 28, 1991.PERFORMANCE CHARACTERISTICS
Surface displacement: 550 tonsSubmerged displacement: 1,000 tons
Submerged speed: 20 knots
Operating depth: 1,000 meters
Length: 40 meters
Beam: 5.3 meters
Draft: 5 meters