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Sindhughosh-class submarine
INS Sindhughosh
INS Sindhughosh
Class overview
Name: Sindhughosh class
Operators:  Indian Navy
In commission: 1986–
Planned: 10
Completed: 10
Active: 9
Lost: 1
General characteristics
Type: Submarine
Displacement: 2,325 t (2,288 long tons) surfaced
3,076 t (3,027 long tons) submerged
Length: 72.6 m (238 ft 2 in)
Beam: 9.9 m (32 ft 6 in)
Draught: 6.6 m (21 ft 8 in)
Propulsion: 2 × diesel-electric motors, 3,650 hp (2,722 kW) each
1 × motor, 5,900 hp (4,400 kW)
2 × auxiliary motors, 204 hp (152 kW)
1 × economic speed motor, 130 hp (97 kW)
Speed: 10 knots (19 km/h; 12 mph) surfaced[verification needed]
17 knots (31 km/h; 20 mph) submerged[verification needed]
Range: 6,000 mi (9,700 km) at 7 kn (13 km/h; 8.1 mph) snorkeling
400 mi (640 km) at 3 kn (5.6 km/h; 3.5 mph) submerged
Test depth: 300 m (980 ft)
Complement: 53 (13 Officers)
Armament: • 9M36 Strela-3 (SA-N-8) SAM launcher
• Club-S (3M-54E) ASCM (after mid-life refit)
• Type 53-65 passive wake homing torpedo
• TEST 71/76 anti-submarine, active-passive homing torpedo
• 24 × DM-1 mines in lieu of torpedoes

Sindhughosh-class submarines are Kilo-class diesel-electric submarines in active service with the Indian Navy. Their names are in Sanskrit, but in their Roman-alphabet forms sometimes a final short -a is dropped.

The Sindhughosh submarines, designated 877EKM, were designed as part of Project 877, and built under a contract between Rosvooruzhenie and the Ministry of Defence (India).

The submarines have a displacement of 3,000 tonnes, a maximum diving depth of 300 meters, top speed of 18 knots, and are able to operate solo for 45 days with a crew of 53. The final unit was the first to be equipped with the 3M-54 Klub (SS-N-27) antiship cruise missiles with a range of 220 km.


On 10 January 2008, the INS Sindhughosh collided with cargo ship MV Leeds Castle. The submarine is reported to have sustained superficial damage to its conning tower. As a result, the submarine was out of service for a month. The cargo ship was in restricted shallow waters.[1]

On 26 February 2010, a fire on board INS Sindhurakshak killed one sailor and injured two others. The fire was due to a defective battery.[2] On 14 August 2013 an explosion, followed by a fire, was reported to have occurred on the Sindhurakshak.[3] The Sindhurakshak sank in the dock.

INS Sindhuvijay has been upgraded with the hydro acoustical USHUS complex and the CCS-MK radio communications system.[4]

Ships of the class

Name Pennant Builder Homeport Commission Date Status Meaning of name
INS Sindhughosh S55 Sevmash,
30 April 1986 Refitted to project 08773 2002-2005 at Zvezdochka shipyard Battle-cry/rumour/report of the Sea
INS Sindhudhvaj S56 Sevmash 12 June 1987 Flag of the Sea
INS Sindhuraj S57 Sevmash 20 October 1987 Refitted to project 08773 1999-2001 at Zvezdochka shipyard King of the Sea
INS Sindhuvir S58 Sevmash 26 August 1988 Refitted to project 08773 1997-1999 at Zvezdochka shipyard Valiant of the Sea
INS Sindhuratna S59 Sevmash 22 December 1988 Refitted to project 08773 2001-2003 at Zvezdochka shipyard Jewel of the Sea
INS Sindhukesari S60 Sevmash 16 February 1989 Refitted to project 08773 1999-2001 at Zvezdochka shipyard Lion of the Sea[5]
INS Sindhukirti S61 Sevmash 4 January 1990 Undergoing refit to project 08773 from 2007 in her home base Vishakhapatnam Fame of the Sea
INS Sindhuvijay S62 Sevmash 18 March 1991 Refitted to project 08773 2005-2007 at Zvezdochka shipyard Victory of the Sea
INS Sindhurakshak S63 Sevmash 24 December 1997 Refitted to project 08773 09.08.2010-2012 at Zvezdochka shipyard.
Exploded and sank in Mumbai 14 August 2013
Protector of the Sea
INS Sindhushastra S65 Sevmash 19 July 2000 Weapon of the Sea[6]


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