The detachment consisted of the Project 627 (November class) attack submarine K-133 under the command of Captain 2nd Rank V.T. Vinogradov and the Project 675 (Echo II class) cruise missile submarine K-116 under the command of Captain 2nd Rank L.N. Stolyarov, with K-116 serving as the detachment's flagship [REF].
The detachment crossed the Barents Sea, the Norwegian Sea, the Atlantic Ocean, and into the Pacific Ocean via the Drake Passage which, according to Academian A.M. Chepurov, was the most dangerous phase of the voyage [REF].