Russia’s second Severodvinsk-class submarine K-561 Kazan , which is a modified Project 08851 Yasen-M design, went to sea for the first time for builder’s trials on September 24. The massive nuclear-powered guided missile submarine (SSGN) was designed by the Malachite design bureau in St. Petersburg and was built in the northern Russian city of Severodvinsk. … Continue reading Russia’s Most Advanced (And Stealthly) Nuclear Submarine Ever Just Went to Sea