Repairs were carried out as part of the implementation of plans by the Main Command of the Navy, providing for maintaining the required technical readiness of third-generation nuclear submarines along with the construction of fourth-generation nuclear submarines- stated in the military
Factory repair of the submarine "Tula" at the enterprise "Zvezdochka" in Severodvinsk was launched in 2015 year. On the submarine repaired a number of mechanisms and systems.
Missile cruiser "Tula" passed factory sea trials and in the near future will arrive at a permanent station in the Northern Fleet- added to the Ministry of Defense
"Tula" refers to the nuclear submarines of project 667BDRM ("Dolphin", according to NATO classification - Delta IV), carrying intercontinental ballistic missiles. Submarine became part of the North fleet in 1987. According to open sources, the displacement of submarines of this type is about 12 thousand tons, they are armed with 16 Sineva or Liner missiles.