Yasen / Yasen-M is Russia's family of fourth-generation nuclear-powered cruise missile submarines, designed by Malakhit and built by Sevmash. The lead boat Severodvinsk entered service in 2014, and later Yasen-M boats added a modernized sensor fit and new cruise-missile carriage options.
USNI reported that the lead boat Severodvinsk carried both Kalibr and Oniks cruise missiles as part of its main weapons fit.
| Launched item | Item type | Launch evidence |
|---|---|---|
 | Cruise missile family | USNI reported Severodvinsk carried Kalibr cruise missiles among the submarine's main weapons. Sources: Russian Navy Accepts First in New Class of Nuclear Attack Submarine |
 | Supersonic cruise missile | USNI reported Severodvinsk carried Oniks cruise missiles among the submarine's main weapons. Sources: Russian Navy Accepts First in New Class of Nuclear Attack Submarine |
Conflict-related deployment/deterrence role rather than confirmed weapons release: in September 2022, Naval News reported that the Yasen-class submarine Severodvinsk appeared to have deployed to the Mediterranean, describing Russia's Mediterranean naval posture as an outer defense/deterrent layer for Black Sea operations during the invasion of Ukraine. I found no public evidence that a Yasen/Yasen-M fired at Ukraine.
Timeline
USNI reported that the Russian Navy accepted K-560 Severodvinsk, the first Project 855 Yasen-class submarine.
Sources: Russian Navy Accepts First in New Class of Nuclear Attack Submarine
Sevmash said the Yasen-M submarine Perm had been floated out and described it as the sixth boat in the Yasen family.
Sources: На Севмаше состоялась церемония вывода из эллинга атомного подводного крейсера «Пермь»
