High Quality Content by WIKIPEDIA articles! The K-442 Chelyabinsk is an Oscar class SSGN within the Russian Navy. The submarine is currently located at the Rybachiy Nuclear Submarine Base, in Vilyuchinsk, near Petropavlovsk-Kamchatsky and belongs to the Russian Pacific Fleet. The Red Banner Northern Fleet (Russian: , Severnyy Flot) is the part of the Russian Navy that has access to the Barents and Norwegian Seas, the Arctic and Atlantic Oceans, and is responsible for the defense of northwestern Russia. The Soviet Red Banner Northern Fleet was established in 1933.