Engineering:INS Aridhaman

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Short description: Arihant-class nuclear submarine

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General characteristics
Class and type: Script error: The function "sclass" does not exist. ballistic missile submarine
Type: Ballistic missile submarine
Displacement: 7,000 tonnes
Length: 130 m
Beam: 11 m
Draft: 9.5 m
Installed power: 1 x CLWR-B1 Compact Light-water reactor,[1][2] 83 MW[3]
Propulsion: 1 × propeller shaft, nuclear propulsion
Speed:

Surfaced: 12–15 knots (22–28 km/h)

Submerged: 24 knots (44 km/h)
Range: Unlimited except by food supplies
Endurance: Unlimited except by food supply and maintenance
Test depth: Between 300 m (980 ft) to 400 m (1,300 ft)[4]
Sensors and
processing systems:
  • USHUS sonar
  • Panchendriya unified submarine sonar, control system and underwater communication system [5]

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..[6][7][8]

The submarine was quietly launched in 2021 and little has been publicly announced about its capabilities and current status.[9]

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.[10][11][12] 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.[13]

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).[3][14][15]

INS Aridhaman was launched in November 2021 and is currently undergoing sea trials as of 2025.[3][16]

Service history

INS Aridhaman is expected to be inducted into the Indian Navy service in 2025.[16]

References

  1. ↑ "Founder's Day Speech, Director, BARC". Bhabha Atomic Research Centre. 30 October 2018. http://www.barc.gov.in/presentations/fddir18.pdf. 
  2. ↑ "DAE Excellence in Science, Engineering & Technology Awards 2010". BARC Newsletter (322): 33. September–October 2011. http://www.barc.gov.in/publications/nl/2011/2011091009.pdf. Retrieved 21 March 2021. 
  3. ↑ 3.0 3.1 3.2 Cite error: Invalid <ref> tag; no text was provided for refs named launched
  4. ↑ "Arihant-class submarines". http://www.defencenews.in/defence-news-internal.aspx?get=new&id=R5mr0CLjcww=. 
  5. ↑ "Retrieved on 2016-10-21.". http://www.naval-technology.com/projects/arihant-class/. 
  6. ↑ "Needed, a nuclear triad". Sunday-guardian.com. http://www.sunday-guardian.com/analysis/needed-a-nuclear-triad. 
  7. ↑ General, Lt. "Indian Navy's Capability Perspective – SP's Naval Forces". Spsnavalforces.net. http://www.spsnavalforces.net/story.asp?mid=23&id=3. 
  8. ↑ "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. 
  9. ↑ "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. 
  10. ↑ "SSBN Arihant Class Submarine, India". naval-technology.com. http://www.naval-technology.com/projects/arihant-class/. 
  11. ↑ "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. 
  12. ↑ "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. 
  13. ↑ "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/. 
  14. ↑ "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. 
  15. ↑ "'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. 
  16. ↑ 16.0 16.1 Cite error: Invalid <ref> tag; no text was provided for refs named dh

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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