Russian submarine K-284 Akula
K-284 Akula was the lead ship in the Soviet submarine class Project 971 "Щука-Б" (Shchuka-B, 'Shchuka' meaning pike, NATO reporting name "Akula"). The ship was laid down on 6 November 1983 and was commissioned in the Pacific Fleet on 30 December 1984. The submarine was 12-15 dB quieter than the previous generation of Soviet submarines. K-284 served in the Soviet Fleet until the collapse of the Soviet union in 1991 and then continued to serve in the Russian navy. The submarine was decommissioned in 2001.