"The submarine will be called 'Perm.' The laying down of the vessel is timed to take place close to the Navy Day, celebrated on July 31," the source said.
A total of six updated Yasen-class submarines are due to join the Russian Navy by 2020.
The Severodvinsk vessel has a submerged displacement of 13,800 tons, a length of some 390 feet, can travel at speeds up to 31 knots, and can dive to depths of almost 2,000 feet. The submarine is armed with naval mines, the Oniks and Kalibr anti-ship missiles and a range of torpedoes.
According to Russia’s Naval Doctrine, the Yasen-class submarines will become the main multipurpose nuclear-powered subs in the Russian Navy.