Kora-class corvette

Last updated

INS Kulish (P63) is underway with U.S. and Indian navy ships during Exercise Malabar 2012.jpg
INS Kulish (P63) during Exercise Malabar 2012
Class overview
NameKora class
Builders GRSE
Operators
Preceded by Khukri class
Succeeded by Kamorta class
Cost
  • ₹ 240 crore (equivalent to ₹955 croreorUS$110 million in 2023) (India, FY 2001)
  • ₹ 365 crore (equivalent to ₹583 croreorUS$67 million in 2023) (Mauritius, FY 2014)
Completed5
Active5
General characteristics [1]
TypeGuided missile corvette
Displacement1,460 short tons (1,320 t) (full load)
Length91.1 m (299 ft)
Beam10.5 m (34 ft)
Draught4.5 m (15 ft)
Propulsion2 × SEMT Pielstick/Kirloskar 18 PA6V 280 diesel engines (14,400 PS; 10,600 kW); 2 shafts
Speed25 kn (46 km/h; 29 mph)
Range4,000 mi (6,400 km) at 16 kn (30 km/h; 18 mph)
Complement134 including 14 officers
Sensors and
processing systems
  • MR-352 (NATO: Cross Dome) E/F-band air search radar
  • Granit Garpun B (NATO: Plank Shave) I/J-band air and surface search radar
  • MR-123 (NATO: Bass Tilt) H/I-band fire control radar (P61 only)
  • BEL Lynx I-band fire control radar (P62, P63 and P64)
  • BEL 1245 I-band navigation radar
Electronic warfare
& decoys
Armament
Aircraft carried1 × HAL Dhruv or HAL Chetak

Kora-class corvettes, also known as Project 25A, are guided missile corvettes, in active service with the Indian Navy and the National Coast Guard of Mauritius. [2] Four vessels were built at Garden Reach Shipbuilders and Engineers (GRSE) and outfitted at Mazagon Dock Limited (MDL).

Contents

Design

The primary role of the Kora class is as surface combatants, representing a modernized version of the prior Khukri-class corvette. They are armed with four quad-launchers for 3M-24 anti-ship missiles (Russian: Kh-35 Uran, NATO: SS-N-25 Switchblade) [3] as opposed to the two dual launchers for P-15 Termit ASMs (NATO: SS-N-2D Styx) of its predecessor. The 3M-24E missile is guided by homing active radar and can carry a 145 kg (320 lb) warhead to a range of 130 km (81 mi) at Mach 0.9 speed. They are powered by two SEMT Pielstick/Kirloskar 18 PA6V 280 diesel engines. [4] A HAL Chetak or HAL Dhruv helicopter can operate from the vessels. The vessels are also supplied with Strela-2M ManPADS (NATO: SA-N-5 Grail), which have a range of 4.2 km (2.6 mi) and a speed of Mach 1.75. INS Kulish is equipped with two Igla surface-to-air missile launchers (NATO: SA-18 Grouse).[ citation needed ]

The first two corvettes of the subclass are armed with a 76 mm (3.0 in) AK-176 dual-purpose gun and two 30 mm (1.2 in) AK-630 CIWS. The AK-176 can fire at the rate of 120 rounds-per-minute (RPM) to a range of 15.5 km (9.6 mi), while the AK-630 can fire at 3,000RPM to a range of 2 km (1.2 mi). INS Kirch and INS Kulish are fitted with a 76 mm (3.0 in) Otobreda super rapid gun firing 120 RPM.

The sensor suite includes a MR-352 Pozitiv-E (Cross Dome) air or surface search radar, Bharat 1245 navigation radar and BEL Rani navigation radar. The MR-352 radar can track targets within a range of 130 km (81 mi). Fire control is provided by Garpun-Bal and MR-123 radars. The Garpun-Bal radar combines active and passive channels and in the active target designation mode, it operates in X-band (I/J-band) and can handle up to 150 targets at ranges between 35–45 km (22–28 mi), although it is possible to obtain ranges of more than 180 km (110 mi) in wave-guide propagation conditions.

The corvettes are fitted with the Ajanta P Mk II Electronic Support Measures system. There are four PK-10 chaff launchers and two towed torpedo decoys to deceive incoming anti-ship missiles and torpedoes. PK-10 is a 10 tube 120 mm (4.7 in) barrage chaff launcher that can fire 80 rounds at a time.

The Kora class is powered by two diesel engines driving two controllable pitch propellers through two shafts. Each engine is rated at 7,100 horsepower (5,300 kW). Four diesel alternators rated at 350 kW are provided for power generation. The propulsion system provides a top speed of 25 kn (46 km/h; 29 mph), an average speed of 16 kn (30 km/h; 18 mph) and a maximum range of 4,000 nmi (7,400 km; 4,600 mi).

Each ship cost in 2001 approximately ₹ 240 crore (equivalent to ₹955 croreorUS$110 million in 2023). A simpler version exported to Mauritius in 2014 cost approximately ₹ 365 crore (equivalent to ₹583 croreorUS$67 million in 2023).

History

The Kora-class corvettes were designed by India's Naval design bureau under Project 25A, as a replacement for the Russian-designed Petya II-class corvettes of the Indian Navy. The first two were ordered in April 1990 and latter two in October 1994. The class was to be outfitted with the Trishul SAM, but following the cancellation of the Trishul project, a shoulder-launched SAM was adopted.

INS Kora undertook a goodwill visit to Singapore in mid-2001. The corvette participated in the Republic of Singapore Navy Day celebrations followed by the International Maritime Defence Exhibition (IMDEX) Asia 2001. The participation of INS Kora in the International Maritime Defence Exhibition was a showcase of the Indian shipbuilding industry and its indigenous efforts.

Export

In 2012, it was reported that Mauritius had ordered 2 vessels based on this class from the Garden Reach Shipbuilders. [5]

Ships of this class

NamePennantBuilderLaid downLaunchedCommissionedHomeportStatus
Naval Ensign of India.svg  Indian Navy
Kora P61 GRSE 10 January 199023 September 199210 August 1998 [1] Visakhapatnam Active
Kirch P6231 January 199028 September 199522 January 2001 [1]
Kulish P634 October 199518 August 199720 August 2001 [1] Port Blair [6] [7] [8]
Karmuk P6427 August 19976 April 20004 February 2004 [1]
Naval Ensign of Mauritius.svg  National Coast Guard of Mauritius
Barracuda C31 GRSE 23 April 20122 August 2013 [9] 12 March 2015 [10] Active

INS Kirch (P62) and INS Kulish (P63) were featured in the Bollywood film Ab Tumhare Hawale Watan Sathiyo, where they are seen accompanying the Rajput-class destroyer INS Ranvir (D54).[ citation needed ]

See also

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References

  1. 1 2 3 4 5 Commodore Stephen Saunders, ed. (2005). "India". Jane's Fighting Ships 2005-2006 (108th ed.). Coulsdon: Jane's Information Group. p. 321. ISBN   0710626924.
  2. ↑ Indian Naval Ships-Corvettes-Khukri Class Archived 19 June 2009 at the Wayback Machine
  3. ↑ "Project 25A Kora Class". globalsecurity.org. 9 July 2011. Retrieved 27 September 2014.
  4. ↑ "Kora (Type 25A) Class". Bharat-Rakshak.com. Retrieved 27 September 2014.
  5. ↑ "Surface Force: An Indian First". Strategy Page. 30 April 2012. Retrieved 30 April 2012.
  6. ↑ "Andaman islands get first missile Corvette". India Today. PTI. 6 April 2016. Retrieved 6 April 2016.
  7. ↑ "INS Kulish joins ANC". The Echo of India. Port Blair. 21 December 2017.
  8. ↑ Roy, Sanjib Kumar (21 December 2017). "INS KULISH arrives in Andaman and Nicobar Command". Andaman Sheekha.
  9. ↑ Bipindra, N. C. (3 August 2013). "India-made warship for Mauritius launched". The New Indian Express.
  10. ↑ "State Visit of Indian PM: New OPV, the CGS Barracuda, commissioned". Government of Mauritius. 16 March 2015.
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