Soviet frigate Deyatelnyy

Deyatelnyy or Deyatel’nyy (Russian: Деятельный, “Active”) was a Soviet Navy 1135 Burevestnik-class Large Anti-Submarine Ship (Большой Противолодочный Корабль, BPK) or Krivak-class frigate. With an armament based around the Metel anti-submarine missile system, the vessel was commissioned on 25 December 1975. Joining the Black Sea Fleet on 19 February the foillowing year, the ship operated in the Indian Ocean, Mediterranean Sea and Persian Gulf. The ship was taken out of service for repair and modernisation in 1991, but lack of funding meant that, instead, Deyatelnyy was decommissioned on 10 June 1995 and scrapped.

Deyatelnyy in 1982.
History
Soviet Union
Name: Deyatelnyy
Namesake: Russian for Active
Builder: Zalyv Shipbuilding yard, Kerch
Yard number: 13
Laid down: 21 June 1972
Launched: 6 April 1975
Commissioned: 25 December 1975
Decommissioned: 10 July 1995
Fate: Scrapped
General characteristics
Class and type: Project 1135 Burevestnik frigate
Displacement: 2,835 tonnes (2,790 long tons; 3,125 short tons) standard, 3,190 tonnes (3,140 long tons; 3,520 short tons) full load
Length: 123 m (404 ft)
Beam: 142 m (466 ft)
Draft: 4.5 m (15 ft)
Propulsion: 2 shaft; COGAG; 2x M-8K gas-turbines, 34,000 shp; 2x M-62 gas-turbines (cruise), 12,000 shp
Speed: 32 knots (59 km/h)
Range: 3,515 nmi (6,510 km) at 18 knots (33 km/h)
Complement: 23 officers, 169 men
Sensors and
processing systems:		 MR-310A Angara-A air/surface search radar, Volga navigation radar, Don navigation radar, MG-332 Titan-2, MG-325 Vega, 2 MG-7 Braslet and MGS-409K sonars
Electronic warfare
& decoys:		 PK-16 ship-borne decoy dispenser system
Armament:

Design

Designed by N.P. Sobolov, Deyatelnyy was the seventh Project 1135 Large Anti-Submarine Ship (Большой Противолодочный Корабль, BPK) laid down and the eleventh one launched.[1] The vessel is named for a Russian word which can be translated active or energetic.[2] Deyatelnyy served with the Soviet Navy, and the Russian Navy after the dissolution of the Soviet Union, as an anti-submarine frigate.[3] The ship was redesignated a Guard Ship (Сторожевой Корабль, SKR) from 28 July 1977 to reflect the change in Soviet strategy of creating protected areas for friendly submarines close to the coast.[4][5]

Deyatelnyy displaced 2,835 tonnes (2,790 long tons; 3,125 short tons) standard and 3,190 t (3,140 long tons; 3,520 short tons) full load.[6] Overall length was 123 metres (404 ft), with a beam of 14.2 m (46 ft 7 in) and a draught of 4.5 m (14 ft 9 in). Power was provided by a combination of two 17,000 shaft horsepower (13,000 kW) M38K and two 6,000 shp (4,500 kW) M62 gas turbines installed as a COGAG set named М7K, which enabled the ship to achieve a design speed of 32 knots (59 km/h). Range was 4,000 nautical miles (7,408 km) at 14 knots (26 km/h), 3,515 nmi (6,510 km) at 18 knots (33 km/h), 3,155 nmi (5,843 km) at 24 knots (44 km/h) and 1,240 nmi (2,296 km) at 32 knots (59 km/h). The ship’s complement was 192, including 23 officers.[7]

The ship was designed for anti-submarine warfare around four URPK-3 Metel missiles (NATO reporting name SS-N-14 Silex), backed up by a pair of quadruple 533 mm (21.0 in) torpedoes and a pair of RBU-6000 213 mm (8 in) Smerch-2 anti-submarine rocket launchers.[8] The main armament was upgraded to URPK-5 Rastrub (SS-N-14B) missiles between 1985 and 1986, which provided a much increased anti-ship capability.[9] Defence against aircraft was provided by forty 4K33 OSA-M (SA-N-4 Gecko) surface to air missiles which were launched from two sets of ZIF-122 launchers, each capable of launching two missiles.[5] Two twin 76 mm (3 in) AK-726 guns were mounted aft. Mines were also carried, either eigthteen IGDM-500 KSM, fourteen KAM, fourteen KB Krab, ten Serpey, four PMR-1, seven PMR-2, seven MTPK-1, fourteen RM-1 or twelve UDM-2.[7]

The ship had a well-equipped sensor suite, including a single MR-310A Angara-A air/surface search radar, Volga navigation radar, Don navigation radar, MP-401S Start-S ESM radar system, Nickel-KM and Khrom-KM IFF and ARP-50R radio direction finder. An extensive sonar complement was fitted, including MG-332 Titan-2, MG-325 Vega and MGS-400K, along with two MG-7 Braslet anti-saboteur sonars and the MG-26 Hosta underwater communication system.[7]

Service

Deyatelnyy was laid down by Zalyv Shipbuilding yard in Kerch on 21 June 1972, the third of the class to be constructed by the shipbuilder, and was given the yard number 13. Launched on 6 April 1975 and commissioned on 25 December that year, Deyatelnyy was deployed to the Black Sea Fleet on 19 February 1976 as part of the 11th Brigade and operated in the Indian Ocean, Mediterranean Sea and Persian Gulf.[9] Amongst the first missions for the ship was a visit to Tunis, where the crew engaged in cultural exchange.[10] After a main armament upgrade undertaken at Sevastopol Shipyard between 1984 and 1986, Deyatelnyy fired 24 of the new URPK-5 missiles off the coast of Feodosia against surface and underwater targets between March and June 1987, proving a new anti-ship capability for the class. The ship was taken out of service for repair and modernisation in October 1991, but lack of funding instead meant that the ship was decommissioned on 10 June 1995 and left Sevastopol to be scrapped by a Turkish company on 6 April 1997.[9]

Selected Pennant numbers
Pennant number[7]Date
1931975
1921976
5031976
5331976
1961976
8001979
8011980
810
8141984
6131986
6111992

References

Citations
  1. Pavlov 1997, p. 132.
  2. Thompson 2010, p. 48.
  3. Baker 2002, p. 637.
  4. van Gogin, Ivan (2017). "BDITELNYY large ASW ships (project 1135) (1970 - 1981)". Navypedia. Retrieved 11 March 2017.
  5. Gardiner & Friedman 1983, p. 491.
  6. Sharpe 1996, p. 584.
  7. "Guard Ships Project 1135". Russian Ships. 2016. Retrieved 24 February 2017.
  8. Baker 2002, pp. 637–638.
  9. Holm 2017.
  10. Drozdov 1977, p. 52.

Bibliography
  • Baker, A. D. (2002). The Naval Institute Guide to Combat Fleets of the World 2002-2003. Annapolis: Naval Institute Press. ISBN 978-1-55750-242-1.
  • Drozdov, V. (December 1977). "Tunisian Visit". Soviet Military Review. 12: 50–52.
  • Gardiner, Robert; Friedman, Norman (1983). Conway's All the World's Fighting Ships, 1947-1982 Part. 2, The Warsaw Pact and Non-Aligned Nations. Annapolis: Naval Institute Press. ISBN 978-0-87021-923-8.
  • Holm, Michael (2017). "Project 1135 Krivak I class". Soviet Armed Forces 1945-1991. Archived from the original on 19 February 2017. Retrieved 24 February 2017.
  • Pavlov, Aleksandr Sergeevich (1997). Warships of the USSR and Russia, 1945-1995. Annapolis: Naval Institute Press. ISBN 978-1-55750-671-9.
  • Polmar, Norman (1991). Guide to the Soviet Navy. Annapolis: Naval Institute Press. ISBN 978-0-87021-240-6.
  • Sharpe, Richard (1996). Jane's Fighting Ships 1996–1997. London: Janes. ISBN 978-0-71061-355-4.
  • Thompson, Delia (2010). Oxford Essential Russian Dictionary. Oxford: Oxford University Press. ISBN 978-0-19957-643-2.
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