Editing November-class submarine (section)

====K-11====
{{Main|Soviet submarine K-11}}
K-11 was laid down on 31 October 1960, launched on 1 September 1961, and commissioned 30 December 1961. K-11 entered service with the [[Soviet Northern Fleet|Northern Fleet]] (given to 3rd division of nuclear submarines which was a part of 1st submarine flotilla, based in Malaya Lopatka of [[Zapadnaya Litsa (naval base)|Zapadnaya Litsa]] Fjord) on 16 March 1962.

In November 1964 the sail failure of fuel pins was detected during the scheduled repair in [[Severodvinsk]] and it was decided to refuel both reactors. On 7 February 1965, the ejection of radioactive steam took place during the lifting of a reactor cover. Crewmembers were evacuated from the reactor compartment, the reactor cover was lowered down and the naval staff was informed about the accident. The arriving naval specialists came to the wrong conclusion that deterioration of the radiation environment was only a result of emission of high-active reactor water and they allowed to continue refueling. On 12 February 1965, the ejection of radioactive steam took place again during the second lift of the reactor cover because of inaccurately following operational instructions, crewmembers overwatching the procedure were evacuated from the reactor compartment and the reactor cover was lowered down. The uncontrolled reactor with the unclear position of its cover remained unwatched during four hours when a fire occurred. The attempts to extinguish the fire in the reactor compartment with the use of fresh water and {{CO2}} fire extinguishers were not successful so shipyard firefighting vehicles filled the reactor compartment with 250 tons of outside water. About 150 tons of that radioactive water spread over other submarine compartments through burnt-out sealings and deteriorated the radiation environment in the work area significantly, seven men were exposed to radiation. The only possible decision was to remove the contaminated reactor compartment and to install a new one, which was not done until August 1968.

K-11 performed five patrol missions in 1968–1970 (305 days). The submarine was modernized between November 1971 – September 1973 and given to 17th submarine division of 11th submarine flotilla based in [[Ostrovnoy, Murmansk Oblast|Gremikha]] in 1975. K-11 performed four patrol missions in 1975–1977 (173 days) and five patrol missions in 1982–1985 (144 days). The submarine was decommissioned from the order of battle on 19 April 1990. She was laid up in Gremikha as of 2000. K-11 passed 220,179 miles (29,560 operational hours) since placed in service.<ref>{{cite web|url=http://www.deepstorm.ru/DeepStorm.files/45-92/nts/627a/k11/k11.htm|title=-11, -11 627|access-date=19 December 2014}}</ref>