[3] The design is double-hulled, with a distance between a light and durable body of 3.5 meters, which provides a significant buoyancy margin, up to 30 %, and provides additional protection against underwater explosions.

During autonomy, in the Sargasso Sea area, an accident occurred at the main power plant, the consequences were eliminated by the crew without losing secrecy and using security measures in two days.

During the repair on the cruiser, the technical readiness of all the ship's systems was restored, including the mechanical part, electronic weapons, hull structures and the main power plant.

The service life of the submarine missile carrier was extended by 3.5 years, after which it is planned to begin work on a deep modernization of the ship.

It was planned that by the end of 2013 the crew of the cruiser and the factory commissioning team would check all the systems of the ship in the conditions of the test sites in the White Sea.

[9] On 16 October 2016, the submarine launched a Granit missile from a submerged position in the Barents Sea at a target on the Novaya Zemlya archipelago in the Arctic, as part of the final combat training activities for the 2016 academic year.

The shooting was successful, the rocket hit the target, which was located in the depths of the coast of the Northern island of the Novaya Zemlya archipelago.