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INS Arighaat

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An artist's impression of an Arihant-class submarine
History
India
NameINS Arighaat
BuilderShipbuilding Centre (SBC), Visakhapatnam, India[1]
Laid down2011[2]
Launched19 November 2017[3]
Commissioned29 August 2024
StatusIn active service
General characteristics
Class and typeArihant-class ballistic missile submarine
TypeBallistic missile submarine
Displacement6,000 tonnes
Length111.6 m
Beam11 m
Draft9.5 m
Installed power1 x CLWR-B1 Compact Light-water reactor,[4][5] 83 MW[3]
Propulsion1 × propeller shaft, nuclear propulsion
SpeedSurfaced: 12–15 knots (22–28 km/h) Submerged: 24 knots (44 km/h)
RangeUnlimited except by food supplies
EnduranceUnlimited except by food supply and maintenance
Test depthBetween 300 m (980 ft) to 400 m (1,300 ft)[6]
Sensors and
processing systems
  • USHUS sonar
  • Panchendriya unified submarine sonar, control system and underwater communication system [7]
Armament
  • 6 × 533 mm (21 in) torpedo tubes - estd. 30 charges (torpedoes, missiles or mines)
  • 4 VLS cells for
  • [8]

INS Arighaat is an upgraded variant of the Arihant-class submarine.[9][10][11] It is the second nuclear-powered ballistic missile submarine made by India[12] under the Advanced Technology Vessel (ATV) project to build nuclear submarines at the Ship Building Centre in Visakhapatnam.[1] It has the code name S3.[3][13][14]

The submarine was quietly launched in 2017 and little has been publicly announced about its capabilities and current status. The submarine was originally known as INS Aridhaman but was renamed INS Arighaat upon its launch. According to reports released in early 2021, she was to be commissioned in late 2021 alongside INS Vikrant.[15]

Description

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The boat will have one seven-blade propeller powered by a pressurised water reactor (PWR). It can achieve a maximum speed of 12–15 knots (22–28 km/h) when on surface and 24 knots (44 km/h) when submerged.[16][17][18] The PWR is an upgraded form of the one that powers INS Arihant. The PWR has exceptionally lower acoustic signature than the previous generation making it harder to detect by enemy vessels along with longer endurance.[19]

The submarine has four launch tubes in its hump, just like her predecessor. She can carry up to 12 K-15 Sagarika missiles (each with a range of 750 km or 470 mi), or four K-4 missiles (with a range of 3,500 km or 2,200 mi).[3][20]

Status

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INS Arighaat was launched in November 2017.[3] INS Arighaat was expected to be commissioned in 2021.[3][21] However the commissioning was pushed to 2024 as per a report in the Hindustan Times.[22][23] INS Arighaat has been commissioned on 29 August 2024 after extensive trials and upgrades. The commissioning ceremony was held in the presence of Defence Minister Rajnath Singh in Naval Dockyard at Visakhapatnam.[24][25][26]

INS Arighaat is significantly more advanced than the INS Arihant with an increased indigenous content of 70%. In contrast to its predecessor which is equipped with only 750-km range missiles, Arighaat is equipped with both K-15 Sagarika and K-4 missiles.[27]

Service history

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On 27 November 2024, nuclear-capable K-4 SLBM with a range of 3,500 km (2,200 mi) was tested from INS Arighaat in Bay of Bengal. This was the first submarine launch of the long range missile system.[28]

References

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  1. ^ a b S. Anandan (14 January 2012). "Second nuclear submarine headed for year-end launch". The Hindu. Retrieved 2 June 2013.
  2. ^ PETR TOPYCHKANOV (15 July 2015). "Indo-Russian naval. cooperation: Sailing high seas". Russia&India Report. Retrieved 15 July 2015.
  3. ^ a b c d e f "A peek into India's top secret and costliest defence project, nuclear submarines". India Today. 7 December 2017. Archived from the original on 20 April 2019. Retrieved 11 December 2017.
  4. ^ "Founder's Day Speech, Director, BARC" (PDF). Bhabha Atomic Research Centre. 30 October 2018. Retrieved 21 March 2021.
  5. ^ "DAE Excellence in Science, Engineering & Technology Awards 2010" (PDF). BARC Newsletter (322): 33. September–October 2011. Archived from the original (PDF) on 15 May 2013. Retrieved 21 March 2021.
  6. ^ "Arihant-class submarines". Defence News. Archived from the original on 26 August 2014. Retrieved 23 June 2021.
  7. ^ "Retrieved on 2016-10-21". Archived from the original on 2 May 2013. Retrieved 29 December 2012.
  8. ^ Pike, John (27 July 2009). "Advanced Technology Vessel (ATV)". globalsecurity.org. Archived from the original on 29 August 2011. Retrieved 24 January 2011.
  9. ^ "Needed, a nuclear triad". Sunday-guardian.com. Archived from the original on 3 May 2014. Retrieved 2 June 2013.
  10. ^ General, Lt. "Indian Navy's Capability Perspective – SP's Naval Forces". Spsnavalforces.net. Archived from the original on 3 July 2013. Retrieved 23 June 2013.
  11. ^ "India To Construct Two More Arihant Nuclear Submarines For Navy". Defence Now. 28 February 2012. Archived from the original on 12 July 2015. Retrieved 2 June 2013.
  12. ^ "Ensuring India's Qualitative Military Edge". SHARNOFF'S GLOBAL VIEWS. 10 April 2013. Retrieved 9 June 2013.
  13. ^ Anandan, S. (20 December 2014). "INS Arihant may be of limited utility". The Hindu. ISSN 0971-751X. Retrieved 30 June 2019.
  14. ^ "India's Nuclear Triad is now Fully Operational". Vivekananda International Foundation. 11 December 2018. Retrieved 2 July 2019.
  15. ^ Gupta, Shishir (10 March 2021). "Eye on China, India's plan for 6 nuclear-powered attack submarines back on track". Hindustan Times. New Delhi. Retrieved 11 March 2021.
  16. ^ "SSBN Arihant Class Submarine, India". naval-technology.com. Retrieved 2 June 2013.
  17. ^ "INS Arighaat: How a second nuclear submarine boosts India's strategic reach". India Today. 31 August 2024. Retrieved 10 September 2024.
  18. ^ "India to commission second Arihant-class submarine in 2021". Default. 22 December 2020. Retrieved 10 September 2024.
  19. ^ "How Refined 83 MW PWR on INS Arighat Boosts its Stealth and Endurance Compared to INS Arihant". Defence.in. 8 September 2024. Retrieved 10 September 2024.
  20. ^ "INS Arihant returned yesterday from 20-day deterrent patrol". India Today. 5 November 2018. Retrieved 13 October 2019.
  21. ^ Pubby, Manu (21 February 2020). "India's Rs 1.2 lakh crore nuclear submarine project closer to realisation". The Economic Times. Retrieved 21 February 2020.
  22. ^ Shishir Gupta (19 February 2023). "Aircraft carrier INS Vikramaditya is back on high seas". Hindustan Times. Archived from the original on 19 February 2023. Retrieved 16 April 2023.
  23. ^ Redacción (29 May 2024). "The Indian Navy is preparing to commission the second of its new nuclear-powered ballistic missile submarines". Zona Militar (in Spanish). Retrieved 29 May 2024.
  24. ^ "India commissions INS Arighat: Know all about Navy's 2nd nuclear-powered submarine". The Times of India. 29 August 2024. ISSN 0971-8257. Retrieved 29 August 2024.
  25. ^ "INS Arighaat: All About India's 2nd Nuclear Ballistic Submarine". NDTV.com. Retrieved 29 August 2024.
  26. ^ "Second Arihant-Class submarine 'INS Arighaat' commissioned into Indian Navy in the presence of Raksha Mantri in Visakhapatnam". Press Information Bureau. 29 August 2024. Retrieved 30 August 2024.
  27. ^ "INS Arighaat fitted with 3,500 km strike range missiles, 70 pc indigenous content". ANI. 6 September 2024. Retrieved 7 September 2024.
  28. ^ "'Nuclear-capable ballistic missile tested from INS Arighaat'". The Times of India. ISSN 0971-8257. Retrieved 28 November 2024.

See also

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