K-211 Petropavlovsk-Kamchatskiy is an Project 667BDR Kalmar class (NATO reporting name

NATO reporting name

NATO reporting names are classified code names for military equipment of the Eastern Bloc...

: "Delta III

Delta class submarine

The Delta class is a class of submarines which formed the backbone of the Soviet and Russian strategic submarine fleet since its introduction in 1973...

") Russian nuclear ballistic missile submarine

Ballistic missile submarine

A ballistic missile submarine is a submarine equipped to launch ballistic missiles .-Description:Ballistic missile submarines are larger than any other type of submarine, in order to accommodate SLBMs such as the Russian R-29 or the American Trident...

. The submarine was built by the Russian shipyard Sevmash

Sevmash

JSC PO Sevmash is a shipbuilding company based in Severodvinsk, a port city on Russia's White Sea. The name Sevmash is an abbreviation of Severnoye Mashinostroitelnoye Predpriyatie , i.e. "Northern Machine-Building Enterprise". Sevmash is the largest shipbuilding enterprise in Russia and today the...

 in the late 1970s and joined the Soviet fleet in 1980. The submarine continued to serve in the Russian navy after the collapse of the Soviet Union

Soviet Union

The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....

 and, , is active in the Russian Pacific fleet.

The submarine is slated to be retired and replaced by the Borei class submarine

Borei class submarine

The Borei class is a class of nuclear-powered ballistic missile submarine produced and operated by the Russian Navy. The class is intended to replace the Delta III, Delta IV and Typhoon classes now in Russian Navy service...

in the next coming years.