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INS Arihant

History
India
Name: INS Arihant
Builder: Shipbuilding Centre (SBC), Visakhapatnam, India
Launched: 26 July 2009
Acquired: 13 December 2014
Commissioned: August 2016
Homeport: Visakhapatnam
Status: in service
General characteristics
Class and type: Arihant-class ballistic missile submarine
Displacement: surface: 6,000 tonne (estimated)
Length: 111 m (364 ft)
Beam: 15 m (49 ft)
Draft: 11 m (36 ft)
Installed power: 83 MW (111,305 hp)
Propulsion: PWR using 40% enriched uranium fuel (83 MWe); one turbine (47,000 hp/70 MW); one shaft; one 7-bladed, high-skew propeller (estimated)
Speed:
  • Submerged: 24 knots (44 km/h; 28 mph)
  • Surfaced: 15 knots (28 km/h; 17 mph)
Range: unlimited except by food supplies
Test depth: 350 m (1,150 ft) (estimated)
Complement: 95–100 officers and men
Sensors and
processing systems:
  • USHUS sonar
  • Panchendriya unified submarine sonar, control system and underwater communication system
Armament:

INS Arihant (Sanskrit: अरिहंत, meaning "Slayer of Enemies" (S-73)) is the lead ship of India's Arihant class of nuclear-powered ballistic missile submarines. The 6,000 tonne vessel was built under the Advanced Technology Vessel (ATV) project at the Ship Building Centre in the port city of Visakhapatnam.

Arihant was launched on 26 July 2009, the anniversary of Vijay Diwas (Kargil War Victory Day) by then Prime Minister of India, Dr Manmohan Singh. After fitting out and extensive sea trials, on 23 February 2016, she was confirmed as ready for operations, and was commissioned in August 2016.

INS Arihant is to be the first of the expected five in the class of submarines designed and constructed as a part of the Indian Navy's secretive Advanced Technology Vessel (ATV) project. The Arihant-class submarines are reported to be based on the Akula-class submarine. Their crew will have the opportunity to train on INS Chakra, an Akula-class submarine, which the Indian Navy leased from Russia.Arihant will be more of "a technology demonstrator", rather than a fully operational SSBN according to Admiral Nirmal Verma.

The vessel will be powered by an 83 megawatts (111,305 hp) pressurised light-water reactor with enriched uranium fuel. A land-based prototype of the reactor was first built at Kalpakkam and made operational in September 2006. Successful operation over a period of three years yielded the data that enabled the production version for Arihant. It was reported that an 80 MW nuclear reactor was integrated into the hull of the ATV in January 2008.


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