The base at Zapadnaya Litsa, called "Basis Nord", had advantages with regard to secrecy.
K-60 entered service with the Northern Fleet (given to 3rd division of nuclear submarines which was a part of 1st submarine flotilla, based in Malaya Lopatka of Zapadnaya Litsa Fjord) on 6 August 1964.
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K-11 entered service with the Northern Fleet (given to 3rd division of nuclear submarines which was a part of 1st submarine flotilla, based in Malaya Lopatka of Zapadnaya Litsa Fjord) on 16 March 1962.
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K-14 entered service with the Northern Fleet (given to 206th separate brigade of nuclear submarines, based in Malaya Lopatka of Zapadnaya Litsa Fjord) on 31 August 1960.
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K-11 entered service with the Northern Fleet (given to 3rd division of nuclear submarines which was a part of 1st submarine flotilla, based in Malaya Lopatka of Zapadnaya Litsa Fjord) on 28 November 1961.
She was, along with the other Akulas, based in Nerpichya Bay, Zapadnaya Litsa.