Soviet frigate Bditelnyy

	A port bow view of Bditelnyy during the BALTOPS exercise in 1993.
History
Soviet Union
Name	Bditelnyy
Namesake	Russian for Watchful
Builder	Yantar Shipyard, Kaliningrad
Yard number	151
Laid down	21 July 1968
Launched	28 March 1970
Commissioned	31 December 1970
Decommissioned	31 July 1996
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	14.2 m (47 ft)
Draft	4.5 m (15 ft)
Propulsion	2 shaft; COGAG; 2 x M-3 gas-turbines, 36,000 shp (27,000 kW); 2 x M-60 gas-turbines (cruise), 12,000 shp (8,900 kW)
Speed	32 knots (59 km/h)
Range	4,000 nmi (7,408 km) at 14 knots (26 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-400K sonars
Electronic warfare ; & decoys	PK-16 ship-borne decoy dispenser system
Armament	4 × URPK-4 Metel (SS-N-14 'Silex') anti-submarine missiles (1x4); 4 × ZIF-122 4K33 launchers (22) with 40 4K33 OSA-M (SA-N-4'Gecko') surface to air missiles; 4 × 76 mm (3 in) AK-726 guns (2×2); 2 × 45 mm (2 in) 21KM guns (2x1); 2 × RBU-6000 Smerch-2 Anti-Submarine rockets; 8 × 533 mm (21 in) torpedo tubes (2x4); 18 mines;

Bditel'nyy or Bditelnyy (Russian: Бдительный, "Watchful") was a Soviet Navy 1135 Burevestnik-class Large Anti-Submarine Ship (Большой Противолодочный Корабль, BPK) or Krivak-class frigate.

Design

Bditelnyy was the first Project 1135 ship laid down.^[1] Displacing 2,835 tonnes (2,790 long tons; 3,125 short tons) standard and 3,190 tonnes (3,140 long tons; 3,520 short tons) full load, the vessel was 123 m (404 ft) in length.^[2] Power was provided by a combination of two 18,000 horsepower (13,000 kW) M3 and two 6,000 horsepower (4,500 kW) M60 gas turbines, driving two fixed pitch screws, for a design speed of 32 knots (59 km/h).^[2]

The ship was designed for anti-submarine warfare around four URPK-4 Metel missiles (NATO reporting name SS-N-14 'Silex'), backed up by 533 mm (21 in) torpedoes and a pair of RBU-6000 213 mm (8 in) anti-submarine rocket launchers. The main armament was upgraded to URPK-5 Rastrub (SS-N-14B) between 1984 and 1986.^[3]

Service

Bditelnyy was commissioned with the Baltic Fleet on 20 February 1971 as part of the 128th Brigade.^[3] Designated a Guard Ship (Сторожевой Корабль, SKR) from 28 July 1977,^[4] the ship was decommissioned on 31 July 1996.^[3]

Pennant numbers

Pennant Number	Date
500	1970
509,502,520	1974
205	1975
512,515,250	1977
700	1978
719	1982
744	1983
713	1987
744	1988
707	1991

References

^ Baker, A. D. (2002). The Naval Institute Guide to Combat Fleets of the World 2002–2003. Annapolis: Naval Institute Press. pp. 637–638.
^ ^a ^b "Guard Ships Project 1135". Russian Ships. 2016. Retrieved 23 February 2016.
^ ^a ^b ^c Holm, Michael. "Project 1135 Krivak I class". Soviet Armed Forces 1945–1991. Retrieved 23 February 2017.
^ van Gogin, Ivan (2017). "BDITELNYY large ASW ships (project 1135) (1970–1981)". Navypedia. Retrieved 23 February 2017.

[baker-1] Baker, A. D. (2002). The Naval Institute Guide to Combat Fleets of the World 2002–2003. Annapolis: Naval Institute Press. pp. 637–638.

[russianships-2] "Guard Ships Project 1135". Russian Ships. 2016. Retrieved 23 February 2016.

[holm-3] Holm, Michael. "Project 1135 Krivak I class". Soviet Armed Forces 1945–1991. Retrieved 23 February 2017.

[gogin-4] van Gogin, Ivan (2017). "BDITELNYY large ASW ships (project 1135) (1970–1981)". Navypedia. Retrieved 23 February 2017.

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