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.
 INS Sindhughosh | |
| Class overview | |
|---|---|
| Name: | Sindhughosh class |
| Operators: |  Indian Navy |
| In commission: | 1986– |
| Planned: | 10 |
| Completed: | 10 |
| Cancelled: | 0 |
| Active: | 10 |
| Lost: | 0 |
| 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 17 knots (31 km/h; 20 mph) submerged |
| 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 • Klub-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 |
Incidents
January 10, 2008 - The INS Sindhughosh collided with cargo ship MV Leeds Castle. The submarine is reported to have sustained superficial damage to its conning tower. The cargo ship was in restricted shallow waters.[1]INS Sindhuvijay has been upgraded with the hydro acoustical USHUS complex and the CCS-MK radio communications system.[2]
[edit] Ships of the class
| Name | Pennant | Builder | Commission Date | Status |
|---|---|---|---|---|
| INS Sindhughosh | S55 | 30 April 1986 | Refit completed | |
| INS Sindhudhvaj | S56 | 12 June 1987 | ||
| INS Sindhuraj | S57 | 20 October 1987 | Refit completed | |
| INS Sindhuvir | S58 | 26 August 1988 | Refit completed | |
| INS Sindhuratna | S59 | 22 December 1988 | Refit completed | |
| INS Sindhukesari | S60 | 16 February 1989 | Refit completed | |
| INS Sindhukirti | S61 | 4 January 1990 | Undergoing Refit | |
| INS Sindhuvijay | S62 | 18 March 1991 | Refit completed | |
| INS Sindhurakshak | S63 | 24 December 1997 | ||
| INS Sindhushastra | S65 | 19 July 2000 |
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