NAVYPEDIA

Photo

B-276 Kostroma 2002

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
К-239 [K-239], 6.1992- Б-239 [B-239], 4.1993- Б-239 Карп [B-239 Karp]	622	3001	Krasnoe Sormovo, Gorkiy	20.7.1979	29.7.1983	29.9.1984	awaiting disposal (2019)
К-276 [K-276], 6.1992- Б-276 [B-276], 4.1993- Б-276 Краб [B-276 Krab], 11.1996- Б-276 Кострома [B-276 Kostroma]	648	3002	Krasnoe Sormovo, Gorkiy	21.4.1984	26.7.1986	27.10.1987	awaiting disposal (2019)

Technical data

Displacement standard, t
Displacement normal, t	6170 / 8200
Length, m	107.2
Breadth, m	12.3 hull 16.7 max
Draught, m	9.62
No of shafts	1
Machinery	1 OK-9D geared steam turbines unit, 1 OK-650B-3 nuclear reactor
Power, h. p.	50000
Max speed, kts	12.2 / 35
Fuel, t	nuclear
Endurance, nm(kts)	practically unlimited
Armament	4 - 650 TT (12, inc. URPK-7 Veter SSM/ASuM (86R, 88R), 4 - 533 TT (28, inc. URPK-6 Vodopad-PL SSM/ASuM (83R, 84R), VA-111 Shkval rocket torpedoes), 1 x 1 Strela-3 SAM (12 9M36)
Electronic equipment	MRKP-58 Radian radar, MGK-500 Skat-KS sonar suite, MG-519M Arfa-M, MG-512 Vint-M sonars, MRP-21 ECM suite, MG-74 Korund-2 decoys, MVU-132 Omnibus-5 CCS
Complement	61
Diving depth operational, m	480

Standard scale images

Graphics

Project history

This titanium-hulled submarine was the follow-on to Project 671RTM. Like Project 971, it combines the Project 671RTM sonar suite with a very quiet (fully rafted) powerplant incorporating the Project 971 reactor. 'Environmental' (non-acoustic) sensors are in the sail. A crew escape pod occupies die centre of the rather wide sail. Much to the disgust of the design organisation, Lazurit, construction of this type was cancelled in favour of Project 971, which was apparently much less expensive. Submarines are armed with very powerful long-range Veter dual-purpose missile.

Modernizations

2003, B-276 Kostroma: + MNK-100 Kolos wake detector

Naval service

No significant events.