Engineering:INS Aridhaman

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Short description: Arihant-class nuclear submarine

Lua error in Module:Infobox_ship at line 147: attempt to call upvalue 'ship_name_format' (a nil value). INS Aridhaman (SSBN 82) (lit. Perpetually Victorious) is a nuclear-powered ballistic missile submarine, and the third of the Indian Navy's Script error: The function "sclass" does not exist.. It is designated S4 Strategic Strike Nuclear Submarine. The 7,000-tonne vessel was built under the Advanced Technology Vessel (ATV) project at the Ship Building Centre in the port city of Visakhapatnam. It is an upgraded variant of the Script error: The function "sclass" does not exist..[1][2][3]

The submarine was quietly launched in 2021 and little has been publicly announced about its capabilities and current status.[4]

Description

The boat will have one seven-blade propeller powered by a Compact Light Water Reactor (CLWR). 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.[5][6][7] The CLWR is an upgraded form of the one that powers INS Arihant. The CLWR has exceptionally lower acoustic signature than the previous generation making it harder to detect by enemy vessels along with longer endurance.[8]

The submarine has eight VLS tubes in its hump, as compared to four on her predecessors—Script error: The function "ship_prefix_templates" does not exist., the lead ship of the class, and Script error: The function "ship_prefix_templates" does not exist.. She can carry up to 24 K-15 Sagarika missiles (each with a range of 750 km or 470 mi), eight K-4 missiles (with a range of 3,500 km or 2,200 mi) or K-5 missiles (with range of 6,000 km or 3,700 mi).[9][10][11]

Construction and career

INS Aridhaman was launched on 23 November 2021.[12] As of February 2025, the submarine was undergoing trials and was expected to be commissioned in 2025 itself.[13]

On 2 December 2025, the Navy chief, Admiral Dinesh K Tripathi, announced that the submarine had entered the final stages of trials and would be commissioned soon.[14] By late December, the boat had completed sea trials.[15] On 19 February 2026, an NDTV report indicated that the submarine is ready for induction between April and May in the year.[16][17]

References

  1. ↑ "Needed, a nuclear triad". Sunday-guardian.com. http://www.sunday-guardian.com/analysis/needed-a-nuclear-triad. 
  2. ↑ General, Lt. "Indian Navy's Capability Perspective – SP's Naval Forces". Spsnavalforces.net. http://www.spsnavalforces.net/story.asp?mid=23&id=3. 
  3. ↑ "India To Construct Two More Arihant Nuclear Submarines For Navy". Defence Now. 28 February 2012. http://www.defencenow.com/news/551/india-to-construct-two-more-arihant-nuclear-submarines-for-navy.html. 
  4. ↑ "Second Arihant-Class submarine ‘INS Arighaat’ commissioned into Indian Navy in the presence of Raksha Mantri in Visakhapatnam". 2024-08-29. https://pib.gov.in/PressReleasePage.aspx?PRID=2049870. 
  5. ↑ "SSBN Arihant Class Submarine, India". naval-technology.com. http://www.naval-technology.com/projects/arihant-class/. 
  6. ↑ "INS Arighaat: How a second nuclear submarine boosts India’s strategic reach" (in en). 31 August 2024. https://www.indiatoday.in/india/story/ins-arighaat-how-a-second-nuclear-submarine-boosts-indias-strategic-reach-2591300-2024-08-31. 
  7. ↑ "India to commission second Arihant-class submarine in 2021" (in en). 22 December 2020. https://www.janes.com/osint-insights/defence-news/india-to-commission-second-arihant-class-submarine-in-2021. 
  8. ↑ "How Refined 83 MW PWR on INS Arighat Boosts its Stealth and Endurance Compared to INS Arihant" (in en-US). 8 September 2024. https://defence.in/threads/how-refined-83-mw-pwr-on-ins-arighat-boosts-its-stealth-and-endurance-compared-to-ins-arihant.9797/. 
  9. ↑ "A peek into India's top secret and costliest defence project, nuclear submarines". India Today. 7 December 2017. https://www.indiatoday.in/magazine/the-big-story/story/20171218-india-ballistic-missile-submarine-k-6-submarine-launched-drdo-1102085-2017-12-10. 
  10. ↑ "INS Arihant returned yesterday from 20-day deterrent patrol" (in en). 5 November 2018. https://www.indiatoday.in/india/story/ins-arihant-returned-yesterday-from-20-day-deterrent-patrol-1383188-2018-11-05. 
  11. ↑ "'Nuclear-capable ballistic missile tested from INS Arighaat'". The Times of India. 2024-11-28. ISSN 0971-8257. https://timesofindia.indiatimes.com/india/nuclear-capable-ballistic-missile-tested-from-ins-arighaat/articleshow/115747030.cms. 
  12. ↑ "India Quietly Launches 3rd Arihant-class Nuclear-powered Submarine, Can Carry 8 Ballistic Missiles: Report" (in en). News18. 2021-12-31. https://www.news18.com/news/india/india-quietly-launches-3rd-arihant-class-nuclear-powered-submarine-can-carry-8-ballistic-missiles-report-4610366.html. 
  13. ↑ "Third Indian N-powered ballistic missile submarine to be inducted this year". Deccan Herald. 3 February 2025. https://www.deccanherald.com/india/third-indian-n-powered-ballistic-missile-submarine-to-be-inducted-this-year-3387338. 
  14. ↑ Sharma, Shivani; Negi, Manjeet (2025-12-02). "Navy to get INS Aridhaman, third Indian-made nuclear submarine" (in en). https://www.indiatoday.in/india/story/ins-aridaman-third-indian-made-nuclear-submarine-to-be-commissioned-soon-navy-chief-2829303-2025-12-02. 
  15. ↑ "CHAKRA EXCLUSIVE: India's fourth SSBN sails out for sea trials" (in en). 2025-12-29. https://chakranewz.com/critical-technologies/trending/chakra-exclusive-india-rsquo-s-fourth-ssbn-sails-out-for-sea-trials. 
  16. ↑ "India's 3rd Nuclear Ballistic Missile Submarine To Enter Service Soon". NDTV. 19 February 2026. https://www.ndtv.com/india-news/indias-3rd-nuclear-ballistic-missile-submarine-ins-aridhaman-to-enter-service-in-april-may-2026-11070962/. 
  17. ↑ "India’s third nuclear ballistic submarine set for induction: Why INS Aridhaman matters". Moneycontrol. 19 February 2026. https://www.moneycontrol.com/news/india/india-s-third-nuclear-ballistic-submarine-set-for-induction-why-ins-aridhaman-matters-13836156.html. 

See also

  • Script error: The function "ship_prefix_templates" does not exist.
  • Script error: The function "sclass" does not exist.
  • Future of the Indian Navy
  • K Missile family



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