The Project 885M Yasen-M class nuclear-powered attack submarine Novosibirsk has gone to the White Sea for shipbuilders sea trials for the first time, a source in Russia’s defense industry told TASS.

The Kazan Yasen-M-class SSGN of project 885M is preparing for acceptance trials set to start this autumn. It is the first Project 885M submarine, an improved version of the Severodvinsk (Yasen-class).