Soviet submarine K-64

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Submarine Delta IV class.jpg
Delta IV submarine (Project 667)
General characteristics
Class and type: Alfa-class submarine
Displacement: 2300 tons surfaced, 3200 tons submerged
Length: 81.4 metres
Beam: 9.5 metres
Draught: 7.6 metres
Speed: 18–24 knots (33–44 km/h; 21–28 mph) surfaced, 43–45 knots (80–83 km/h; 49–52 mph)43-45 knots submerged
Test depth: 800 m test, has been dived to 1300 m, so crush depth is in excess of this
Complement: 27 officers, 4 petty officers
A Delta IV class submarine
A Delta IV class submarine
General characteristics
Class and type: Delta IV class submarine
Propulsion: two pressurized water cooled reactors powering two steam turbines with two five bladed fixed pitched shrouded propellers.

Surfaced: 24 knots (44 km/h; 28 mph)

Submerged: 24 knots (44 km/h; 28 mph)
Range: Unlimited, except by food supplies

K-64 was a Russian designation shared by the first Alfa Class Submarine and later by a Delta IV class submarine.

The K-64 Designation was first given to the first Alfa Class Submarine, laid down on June 2, 1968, and launched on April 22, 1969. In 1972, the submarine suffered a major reactor problem in the form of a leak of liquid metal coolant. The superheated metal solidified on contact with the colder outside air, freezing and damaging internal components of the reactor. She was removed from service and towed to Severodvinsk. At the dockyard, the damage to the reactor was deemed too extensive for repair and the decision was made to salvage as much as they could. K-64 was split in half, its bow section (including control spaces) was taken to Leningrad and used for training new Soviet submariners.[1]

The K-64 designation was again given to a Delta IV class submarine launched on February 2, 1986, as the fourth ship of its class, entered in service in the Russian Northern Fleet. The sub was laid down in December 1982 and was built at Sevmash plant in Severodvinsk. This ship is still in active service.


  1. ^ Cold War Submarines (First Edition), Page 142, Norman Polmar and K.J. Moore, 2004
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