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INS ''Arihant'' ((サンスクリット:अरिहंत), meaning "Slayer of Enemies" (S-73)) is the lead ship of India's 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 Former Prime Minister of India, Dr. Manmohan Singh. , it was still undergoing sea trials, and is expected to join the Indian Naval fleet in February 2016 during the International Fleet Review 2016. ==Design== 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 .〔(【引用サイトリンク】title=SSBN Arihant Class Submarine, India )〕 Their crew will have the opportunity to train on INS ''Chakra'', an ''Akula''-class submarine, which the Indian Navy leased from Russia.〔(【引用サイトリンク】title=Arihant – Advanced Technology Vessel (ATV) )〕 ''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 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. The hull for the vessel was built by L&T's Hazira shipbuilding facility. Tata Power built the control systems for the submarine. The systems for the steam turbine integrated with the reactor are supplied by Walchandnagar Industries. The consultancy for this project was provided by Russia. Russia was also reported to have provided assistance to BARC scientists in miniaturising the reactor to fit into the hull of the nuclear submarine 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「INS Arihant」の詳細全文を読む スポンサード リンク
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