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Reactor powered up on first Indian nuclear submarine

Staff writer ▼ | August 12, 2013
India has activated the reactor aboard the INS Arihant (Slayer of Enemies). Arihant is the first nuclear-powered ballistic missile submarine built outside the Cold War nuclear club.
Arihant
ArihantIndia has activated the reactor aboard the INS Arihant (Slayer of Enemies). Arihant is the first nuclear-powered ballistic missile submarine built outside the Cold War nuclear club.


Prime Minister Manmohan Singh called the event a "giant stride in... our indigenous technological capabilities." Arihant is the first nuclear-powered submarine built in India and the first such vessel constructed by a country other than the United States, U.K., France, Russia or China.

The Arihant-class vessels were developed under the $2.9 billion Advanced Technology Vessel (ATV) project. Those submarine have a length of 112 meters (367 ft) overall, a beam of 15 meters (49 ft) and a draft of 10 meters (33 ft). Displacement is 6,000 tonnes, have a diving depth of 300 meters (980 ft), and they can have 95 officers and sailors on board.

Arihant has one seven-blade propeller powered by an 83 MW (111,000 hp) pressurized water reactor. That means the maximum speed of 12–15 knots (22–28 km/h) on surface and 24 knots (44 km/h) submerged. Arihant has four launch tubes and can carry up to 12 K-15 Sagarika missiles with 8 multiple independently targetable reentry vehicles (MIRV) with a range of 750 kilometers (470 miles).

Reports suggest its design is based on Russia's Akula-class submarines, which came into operation toward the end of the Cold War.


 

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