Russian submarine BS-64

BS-64 is a Project 667BDRM Delfin-class ballistic missile submarine (NATO reporting name Delta IV) of the Russian Navy. She was originally designated K-64.

History
Russia
Name:	BS-64
Builder:	Northern Engineering Plant (Sevmash), Severodvinsk
Laid down:	18 December 1982
Launched:	2 February 1986
Commissioned:	23 December 1986
Renamed:	Had been K-64 until 2002
Status:	In active service
General characteristics (As Delta IV class)[1]
Class and type:	Delta-class submarine
Displacement:	11,700 tons (surface) 18,200 tons (submerged)
Length:	167 m (547.9 ft)
Beam:	11.7 m (38.4 ft)
Draught:	8.8 m (28.9 ft)
Propulsion:	Two VM4-SG nuclear reactors
Speed:	14 knots (26 km/h; 16 mph) (surface) 24 knots (44 km/h; 28 mph) (submerged)
Endurance:	80 days
Complement:	135 officers and ratings
Armament:	16 × RSM-54 missiles D-9RM missile system 16 × missile launchers 4 × 533mm torpedo tubes 12 × torpedoes

K-64 was removed from active service in 1999 and was ordered to be refitted. It was planned for her to be reactivated in 2002 to replace the Yankee 'Stretch'-class KS-411. KS-411 had been the mothership for the Paltus-class mini submarines, which are believed to be used for a combination of oceanographic research, search and rescue, and underwater intelligence-gathering.[2] Due to lack of funds this plan was postponed. K-64 was renamed BS-64 in 2002, and her central section containing 16 silos for ballistic missiles was removed to create space for the installation of scientific-experimental equipment, cabins for scientists and a rest room for the regular crew. There were unofficial reports that in 2008 the ship had been named Vladimir, before the official name Podmoskovye was announced later that year.[3]

After her conversion was completed at Zvezdochka shipyard the submarine was relaunched on 11 August 2015.[4] Following the completion of repairs it is believed that the submarine was converted to serve as carrier of mini submarine(s), such as the deep-diving nuclear powered mini-submarine Losharik.[5][6][7] Sea trials started in the White Sea in October 2016 and the submarine was handed over to the Russian Navy in December the same year as a Pr. 09787 carrier of mini-submarines and possibly as a nuclear deep-water station.[8][9][10]