INS Aridhaman
| History | |
|---|---|
| India | |
| Name | INS Aridhaman |
| Builder | Shipbuilding Centre (SBC), Visakhapatnam, India[1] |
| Laid down | 2018[2] |
| Launched | 23 November 2021[3] |
| Commissioned | TBD |
| Status | Under Sea Trials [4] |
| General characteristics | |
| Class & type | Arihant-class 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,[5][6] 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)[7] |
| Sensors & processing systems |
|
INS Aridhaman (SSBN 82) (lit. 'Perpetually Victorious') is a nuclear-powered ballistic missile submarine, and the third of the Indian Navy's Arihant-class submarine. 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 Arihant-class submarine.[9][10][11]
The submarine was quietly launched in 2021 and little has been publicly announced about its capabilities and current status.[12]
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.[13][14][15] 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.[16]
The submarine has Eight launch tubes in its hump, compared to four on her predecessors. 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][17][18]
Status
INS Aridhaman was launched in November 2021 and is currently undergoing sea trials. [3] [4]
INS Aridhaman is significantly more advanced than the INS Arihant with an increased indigenous content of 70%. In contrast to its predecessor which is equipped with 4 VLS for K-15 Sagarika or K-4 SLBM, Aridhaman is equipped with 8 VLS for K-4 SLBM or a more and longer range K-5 SLBM.[19]
Service history
INS Aridhaman is expected to be inducted into the Indian Navy in 2025.[4]
References
- ^ S. Anandan (14 January 2012). "Second nuclear submarine headed for year-end launch". The Hindu. Retrieved 2 June 2013.
- ^ "A bigger nuclear submarine is coming". www.thehindu.com. The Hindu. 2017. Retrieved 25 June 2025.
- ^ a b c d "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.
- ^ a b c "Third Indian N-powered ballistic missile submarine to be inducted this year". www.deccanherald.com. Deccan Herald. 2025. Retrieved 25 June 2025.
- ^ "Founder's Day Speech, Director, BARC" (PDF). Bhabha Atomic Research Centre. 30 October 2018. Retrieved 21 March 2021.
- ^ "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.
- ^ "Arihant-class submarines". Defence News. Archived from the original on 26 August 2014. Retrieved 23 June 2021.
- ^ "Needed, a nuclear triad". Sunday-guardian.com. Archived from the original on 3 May 2014. Retrieved 2 June 2013.
- ^ 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.
- ^ "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.
- ^ "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 28 November 2024.
- ^ "INS Arighaat: How a second nuclear submarine boosts India's strategic reach". India Today. 31 August 2024. Retrieved 10 September 2024.
- ^ "India to commission second Arihant-class submarine in 2021". Default. 22 December 2020. Retrieved 10 September 2024.
- ^ "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.
- ^ "INS Arihant returned yesterday from 20-day deterrent patrol". India Today. 5 November 2018. Retrieved 13 October 2019.
- ^ "'Nuclear-capable ballistic missile tested from INS Arighaat'". The Times of India. 28 November 2024. ISSN 0971-8257. Retrieved 30 November 2024.
- ^ Tkuhn. "India quietly launches fourth nuclear missile submarine amid rising maritime focus". armyrecognition.com. Retrieved 11 May 2025.