Borei Class Submarine

Borei Class Submarine
https://engineers-channel.blogspot.com/p/submarines.html

The Borei class (Project 955 Borei and Project 955A Borei-A) are series of nuclear-powered ballistic missile submarines being constructed by Sevmash for the Russian Navy. The class is projected to replace the Soviet-era Delta III, Delta IV and Typhoon classes in the Russian Navy service.