Sierra-class submarine
Class of ship
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The Sierra class, Soviet designations Project 945 Barrakuda and Project 945A Kondor, are a series of nuclear-powered attack submarines intended for the Soviet Navy and currently in service with the Russian Navy. Wikipedia
Active: 4
Displacement: Sierra I: 7,200 tons (surfaced); 8,300 tons (submerged); Sierra II: 7,600 tons (surfaced); 9,100 tons (submerged)
Length: Sierra I: 107.16 m (351.6 ft); Sierra II: 110 m (360 ft)