The robust body is made of high quality alloy steel with σт = 1 GPa (10,000 kgf / cm2).

To simplify the installation of equipment, the boat was designed using zonal blocks, which made it possible to transfer a significant amount of work from the cramped conditions of the sub's compartments directly to the workshop.

After completion of the installation, the zonal unit is "rolled" into the hull of the boat and connected to the main cables and pipelines of the ship's systems.

[7][6] The boat has a developed vertical tail unit with a streamlined boule, in which the towed antenna is located.

On 16 August 1993, during the commissioning of the power plant, due to erroneous actions of the personnel, the safety automatic devices of the steam generators were triggered.

From 5 December 1995 to 20 February 1996 completed the tasks of the 2nd combat service with the crew of K-317 Pantera under the command of Captain 1st Rank S.V.

When the boat was in Gadzhievo, 19-year-old sailor Alexander Kuzminykh, in a state of mental breakdown, armed with an AKS74U machine gun, shot 8 colleagues and locked himself in the torpedo compartment, threatening to detonate the ammunition.

Ultimately, during the negotiations, due to the impossibility of voluntary surrender, the sailor was eliminated by FSB specialists.