The Mirka Class was the NATO reporting name

NATO reporting name

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

 for a class of light frigate

Frigate

A frigate is any of several types of warship, the term having been used for ships of various sizes and roles over the last few centuries.In the 17th century, the term was used for any warship built for speed and maneuverability, the description often used being "frigate-built"...

s built for the Soviet Navy

Soviet Navy

The Soviet Navy was the naval arm of the Soviet Armed Forces. Often referred to as the Red Fleet, the Soviet Navy would have played an instrumental role in a Warsaw Pact war with NATO, where it would have attempted to prevent naval convoys from bringing reinforcements across the Atlantic Ocean...

 in the mid to late 1960s. The Soviet Designation was Storozhevoi Korabl (escort ship) Project 35 (Mirka I) and Project 35-M (Mirka II).

Design

The role of these ships was anti-submarine warfare in shallow waters and they were similar to the Petya class frigate

Petya class frigate

The Petya Class was the NATO reporting name for a class of light frigates built for the Soviet Navy in the 1960s. The Soviet Designation was Storozhevoi Korabl Project 159.-Design:...

s but had a modified machinery suite. The machinery consisted of two shafts with diesels and gas turbines (CODAG). The propellers were in tunnels (similar to water jets). The machinery proved noisy and not very reliable.

Ships

A total of 18 ships were built by Yantar shipyard, Kaliningrad, for the Soviet Navy. All ships were decommissioned between 1989 and 1992.