Soviet submarine K-27

History
Soviet Union
Laid down15 June 1958
Launched1 April 1962
Commissioned30 October 1963
Home portGremikha
FateScuttled on 6 September 1982 off the coast of Novaya Zemlya at 72°31′28″N 55°30′09″E / 72.52444°N 55.50250°E / 72.52444; 55.50250
General characteristics
Class & typeNovember-class submarine
Displacement3,420 tons surface; 4,380 tons submerged
Length109.8 m (360 ft 3 in)
Beam8.3 m (27 ft 3 in)
Draft5.8 m (19 ft 0 in)
PropulsionTwo VT-1 nuclear reactors with lead-bismuth liquid-metal coolants, capable of producing about 73 megawatts apiece
Speed
  • 14.7 knots (27.2 km/h; 16.9 mph) surface
  • 30.2 knots (55.9 km/h; 34.8 mph) submerged
RangeUnlimited
Service record
Part ofSoviet Northern Fleet: 17th submarine division

K-27 was the only nuclear submarine of the Soviet Navy's Project 645. It was constructed by placing a pair of experimental VT-1 nuclear reactors that used a liquid-metal coolant (lead-bismuth eutectic) into the modified hull of a Project 627A (November-class) vessel. A unique NATO reporting name was not assigned. On September 6, 1982, the Soviet Navy scuttled it in shallow water in the Kara Sea, contrary to the recommendation of the International Atomic Energy Agency.