Yasen class submarine , also known as the Severodvinsk class, is a new Russian nuclear multipurpose attack submarine class. The submarine is developed on the Akula-class submarine and the Alfa-class submarines and are projected to replace Russia's older Soviet-era class attack submarines both Akula class and Oscar class.
"Greenville" is the sixty ship of the Losangeles class submarine."Greenville" is in the Newport shipyard built second ships Losangeles class submarine. It is the Losangeles class submarine improved, enhanced navigation and icebreaking possibility.
K-141 Kursk was an Oscar-II class nuclear cruise missile submarine of the Russian Navy, lost with all hands when it sank in the Barents Sea on August 12, 2000. It was named after the Russian city Kursk, around which the biggest tank battle in military history, the Battle of Kursk, took place in 1943.