Petya-class frigate

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HQ-15, a Petya-class frigate of the Vietnam People's Navy in 2017
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The Petya class was the NATO reporting name for a class of light frigates designed in the 1950s and built for the Soviet Navy in the 1960s. The Soviet designation was "Storozhevoi Korabl`" (Сторожевой Корабль - Sentry Ship) Project 159.

Design

They were the first gas turbine-powered ships in the Soviet Navy. The role of these ships was anti-submarine warfare in shallow waters and they were similar to the Script error: No such module "WPSHIPS utilities".s. The specification (TTZ in Russian) was issued in 1955 and design approved in 1956. A three shaft machinery layout was chosen with the central shaft powered by diesel engines for economical cruising and the two wing shafts powered by gas turbines for speed. Gun armament was two twin AK-726 Script error: No such module "convert". gun turrets in "A" and "Y" positions which were controlled by a single radar director. Anti-submarine armament consisted of four RBU-6000 anti-submarine rocket launchers and a launcher for Script error: No such module "convert". anti-submarine torpedoes. Some of the ships designed for export replaced the 406 mm torpedo tubes with anti-shipping Script error: No such module "convert". torpedo tubes. A comprehensive sonar suite including VDS was fitted.

Ships

A total of 54 ships were built in two shipyards: the Kaliningrad Yantar shipyard built 22 ships including exports and Khabarovsk yard built 32 ships including exports. All Soviet ships were decommissioned in 1989-1992, with other ships continuing service with export customers. As of 2023, Vietnam and Azerbaijan still operate the type, with Vietnam operating five ships and Azerbaijan operating a single ship.

Export sales

See also

References

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External links

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