http://rusnavy.com/upload/iblock/7be/severodvinsk.jpg Newest SSN Severodvinsk to start trials this year In 2010 Russian Navy will test new nuclear-powered attack submarine Severodvinsk (Project 855 Yasen). On May 7 the sub is expected to leave covered slipway and start trials, including those in the White Sea. Since collapse of the USSR, Severodvinsk is the first submarine which was completely built in Russia. The submarine's surface speed is 16 knots; submerged speed is 31 knots; test depth is 600 meters; endurance is 100 days crew is 90 men. The sub is armed with 10 torpedo tubes (650-mm and 533-mm), 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 cruise missiles used against land targets. The submarine carries extraordinarily powerful armament capable to counter almost all present-day surface ships and submarines. For the first time torpedo tubes are located not in bow section but behind central station.