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Severodvinsk. Photo from 7c.ru

Severodvinsk is a Project 855 Yasen multipurpose nuclear-powered cruise missile submarine, lead sub of the project.


The sub was laid down on December 21, 1993 at Sevmash shipyard in Severodvinsk and is still under construction. Nikolai Kalistratov, the shipyard's Director General said in 2008 that the sub would be put into service in 2010; however, according to the latest statement of Vice Admiral Oleg Burtsev, Deputy Chief of Navy Main HQ Severodvinsk would be commissioned in 2011.


Surface speed: 16 knots
Submerged speed: 31 knots
Test depth: 600 meters
Endurance: 100 days
Crew: 90 men
Surface displacement: 8,600 tons
Submerged displacement: 13,800 tons
Extreme length: 119 meters
Extreme beam: 13.5 meters
Height: 9.4 meters


Water-cooled and water-moderated thermal reactor OK-650V, one shaft, one water jet or low-noise screw.


10 x 650-mm and 533-mm torpedo tubes
P-100 Onyx antiship cruise missiles
Kh-35 antiship cruise missiles
Kh-101 strategic cruise missiles
3M-54E and 3M-54E1 antiship cruise missiles
3M-14E antisurface cruise missiles

According to Russian Naval Doctrine, Yasen-class subs are to become Russia's main nuclear-powered attack submarines. It is planned to build 6 subs of this class.