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ARIHANT ballistic missile nuclear powered submarines (2016-)


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Arihant 2014

Ships


Name No Yard No Builder Laid down Launched Comp Fate
अरिहंत [Arihant] S73   SBC, Visakhapatnam 2004 26.7.2009 8/2016 in service (2019)
अरिदमन [Arighat] S74   SBC, Visakhapatnam 2009 19.11.2017 2020 building (2019)
S4 S75   SBC, Visakhapatnam 2018 2021 2023 building (2019)
S4* S76   SBC, Visakhapatnam 2019 2022 2024 building (2019)


Technical data


Data variantS73-75 S76
Displacement standard, t

 

 

Displacement normal, t

6000 / 7000

6600 / 7700

Length, m

111.0

121.0

Breadth, m

11.0

11.0

Draught, m

10.0

10.0

No of shafts

1

1

Machinery

1 Walchandnagar nuclear reactor, 1 Walchandnagar geared steam turbine set

1 Walchandnagar nuclear reactor, 1 Walchandnagar geared steam turbine set

Power, h. p.

47000

47000

Max speed, kts

15 / 24

15 / 24

Fuel, t

nuclear

nuclear

Endurance, nm(kts)

practically unlimited

practically unlimited

Armament

4 x 1 K 15 Sagarika SLBM, 6 - 533 TT (30, inc. Club-S SSM (presumably 4 Club-S))

8 x 1 K 15 Sagarika SLBM, 6 - 533 TT (inc. Club-S SSM)

Electronic equipment

nav. radar, USHUS sonar suite, ECM, CCS

nav. radar, USHUS sonar suite, ECM, CCS

Complement

95

95

Diving depth operational, m

300

450



Standard scale images


<i>Arihant </i>2016
Arihant 2016


Graphics


<i>Arihant </i> 2014
Arihant 2014


Project history

Related research has been ongoing in India since 1974 toward the construction of an indigenously designed and constructed nuclear-powered submarine. In 1996, the program was said to be at risk of cancellation due to severe delays and cost overruns and later that year it was reported that initial trials in 1995 with a prototype reactor for the submarine at Kalpakkam atomic power plant had been entirely unsuccessful. The reactor, under design since 1985 at the Bhaba Atomic Research Center, Mumbai, was said to weigh 600 tons. Russia providing design and engineering assistance for the program since 1989. However, fortunes apparently changed for the better by around 2000, and a submersible test barge intended to launch trial missiles for the class was launched during 2001. Sea trials of Arihant began in 2014, in November 2016 she was transferred to the Navy but is yet not fully serviceable. Based on the Russian Akula SSN design, with the addition of a 10m plug containing four vertical launch tubes. Double-hull design with seven watertight compartments.

Modernizations

None.

Naval service

In February 2017 Arihant was badly damaged by flooding, machinery spaces were foundered. She is in repair since 2.2017 (as in January 2018).