The Udaloy class, Soviet designation Project 1155 Fregat and Russian designation Project 11551 Fregat-M (, 'Fregat' - the family of seabird), are series of anti-submarine guided-missile destroyers built for the Soviet Navy, seven of which are currently in service with the Russian Navy. Twelve ships were built between 1980 and 1990, while the thirteenth ship built to a modified design, known as Udaloy II class, followed in 1999. They complement the Sovremenny-class destroyers in anti-aircraft and anti-surface warfare operations. The codename Udaloy comes from a Russian adjective удалой, meaning daring or bold. It is the last active destroyer class of the Russian Navy.

History The Project 1155 dates to the 1970s when it was concluded that it was too costly to build large-displacement, multi-role combatants. The concept of a specialized surface ship was developed by Soviet designers. Two different types of warships were laid down, which were designed by the Severnoye Design Bureau: Project 956 destroyer and Project 1155 large anti-submarine ship. The Udaloy class are generally considered the Soviet equivalent of the American s. There are variations in SAM and air search radar among units of the class. Based on the , the emphasis on anti-submarine warfare (ASW) left these ships with limited anti-surface and anti-air capabilities.

In 2015, the Russian Navy initially announced that five out of the eight Project 1155 ships will be refurbished and upgraded as part of the Navy modernization program by 2022. In 2020 it was suggested that a total of eight Project 1155/1155.1 vessels would be upgraded to the same standard, though work on the remaining three units would extend beyond 2022. In addition to overhauling their radio-electronic warfare and life support systems, they will receive modern missile complexes to fire P-800 Oniks and Kalibr cruise missiles. The ships are to have their service life extended by 30 years until sufficient numbers of s are commissioned. Upgrades will include replacing the Rastrub-B missiles with 3S24 angling launchers fitted with four containers using the 3M24 anti-ship missile, and two 3S14-1155 universal VLS with 16 cells for Kalibr land attack, anti-ship, and anti-submarine cruise missiles in place of one of the AK-100 guns.

Udaloy II Following the Udaloys commissioning, designers began developing an upgrade package in 1982 to provide more balanced capabilities with a greater emphasis on anti-ship warfare. The resulting Project 1155.1 Fregat-M Large ASW Ship (NATO reporting name: Udaloy II) is roughly the counterpart of the improved Spruance-class. Due to the collapse of the Soviet Union, the dire economic situation in Russia that followed it and the radical cuts in military spending, only one ship was completed.

Similar to the Udaloy-class externally, it has a new weapon configuration with P-270 Moskit anti-ship missiles replacing the URK-5 Rastrub-B ASW/ASuW missiles; a twin 130 mm AK-130 gun replacing two single 100 mm AK-100 guns; two RBU-12000 ASW rocket launchers replacing both RBU-6000 ASW rocket launchers and two Kortik CIWS replacing all six AK-630 CIWS. A standoff ASW capability is retained by launching RPK-6 Vodopad missiles from the torpedo tubes.

Powered by a modern gas turbine engine, the Udaloy II is equipped with more capable sonars, an integrated air defense fire control system, and a number of digital electronic systems based on state-of-the-art circuitry. The original MGK-355 Polinom integrated sonar system (with NATO reporting names Horse Jaw and Horse Tail for the hull-mounted and towed parts respectively ) on Udaloy-I ships is replaced by its successor, a newly designed Zvezda M-2 sonar system that has a range in excess of in the 2nd convergence zone. The Zvezda sonar system is considered by its designers to be the equivalent in terms of overall performance of the AN/SQS-53 on US destroyers, though much bulkier and heavier than its American counterpart: the length of the hull-mounted portion is nearly . The torpedo approaching warning function of the Polinom sonar system is retained and further improved by its successor.

Operational history In 2008, became the first Russian warship to transit the Panama Canal since World War II.

deployed to the Mediterranean Sea from its home base in Russia's Northern Fleet in June 2014.

Ships Name Namesake Laid down Launched Commissioned Status Udaloy I class "bold" 23 July 1977 5 February 1980 31 December 1980 Decommissioned in 1997. Scrapped at Murmansk in 2002. Nikolai Kulakov 4 November 1977 16 May 1980 29 December 1981 Modernization completed in 2010. In service with the Northern Fleet. Aleksandr Vasilevsky 22 April 1979 29 December 1981 8 December 1983 Decommissioned in 2006 and scrapped. Mikhail Zakharov 16 October 1981 4 November 1982 30 December 1983 Caught fire in 1991. Decommissioned in 2002 and scrapped. Emil Spiridonov 11 April 1982 28 April 1984 30 December 1984 Decommissioned in 2001 and scrapped. Vladimir Filippovich Tributs 19 April 1980 26 March 1983 30 December 1985 Caught fire in 1991, but modernized and returned to service. In service with the Pacific Fleet. Boris Shaposhnikov 25 May 1983 27 December 1984 30 December 1985 Returned to service on 27 April 2021 after reconfiguration, now referred to as a frigate. In service with the Pacific Fleet. Severomorsk 12 June 1984 24 December 1985 30 December 1987 Tasked to the Northern Fleet, though operating regularly in the Baltic as of 2026 Gordey Levchenko 27 January 1982 21 February 1985 30 September 1988 Active with the Northern Fleet as of 2026 Nikolai Vinogradov 5 February 1986 4 June 1987 30 December 1988 Undergoing refit to Marshal Shaposhnikov standard. Set to return to service with the Pacific Fleet. Nikolay Kharlamov 7 August 1986 29 June 1988 1 April 1990 Decommissioned on 1 December 2020. Yuri Aleksandrovich Panteleyev 24 May 1987 1988 1 May 1992 In service with the Pacific Fleet. Udaloy II class Andrei Chabanenko 28 February 1989 16 June 1994 28 January 1999 In overhaul, planned to return to service with the Northern Fleet by 2025. Admiral Basisty Nikolai Basistiy 1991Scrapped in 1994 Admiral Kucherov Stepan KucherovScrapped in 1993

Gallery

See also List of ships of Russia by project number List of destroyer classes in service

Equivalent destroyers of the same era

Type 051D

References

Bibliography

External links

Maritimequest Russian Destroyer Index

Project 1155/11551 - Complete Ship List