Project 971M

The third generation Project 971 Akula nuclear-powered attack submarine is an extensive upgrade being applied to existing Project 971 boats operated by the Russian Navy. The upgraded submarine carries new life support systems, new radio and hydro-acoustic communications. Besides, the upgraded Akula is stealthier being fitted with a two-tier anti-vibration mechanism based upon elastic foundations and each one is separated from the next by pneumatic shock absorbers. The Project 971M submarines are armed with Kalibr-PL land attack cruise missile, Kalibr anti-ship missiles and Shkval jet-powered torpedoes. The first boat to undergo this modernization was the Kuzbass and is expected to be commissioned by the Russian Navy in April 2016, delayed to 2018. The Zvezda shipyard, at the Primorye territory, is the responsible for carrying out the modernization process. As of early 2021, the Russian Navy plans calls for the upgrade of nine boats with Kalibr and Zircon missiles beginning in 2021.

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