Borei Class Submarine

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The Borei class (or Borei; named after Boreas, the North wind) is a type of nuclear-powered ballistic missile submarine produced and operated by Russia. It is intended to replace the Delta III and Typhoon class in the Russian Navy. The Borei is claimed to represent the state of the art in submarine design, incorporating characteristics that make it superior to any submarine currently in service, such as the ability to cruise silently and be less detectable to sonar. Advances include a compact and integrated hydrodynamically efficient hull for reduced broadband noise and the first ever use of pump-jet propulsion on a Russian nuclear submarine. Costing some $890 million USD, Borei is approximately 170 metres (560 ft) long, 13 metres (43 ft) in diameter, and has a maximum submerged speed of at least 46 kilometres per hour (25 kn; 29 mph). The launch of the first submarine of the class, the Yury Dolgorukiy, was scheduled for 2002 but was delayed because of budget constraints. The vessel was eventually rolled out of its construction hall on 15 April 2007 in a ceremony attended by many senior military and industrial personnel. The Yuriy Dolgorukiy was the first strategic missile submarine to be launched in the seventeen years since the end of the Soviet era; in fact, it was the first Russian (rather than Soviet) vessel. Currently, there are two more Borei class submarines under construction, named Alexander Nevsky and Vladimir Monomakh. However, the SS-N-28 missile that the Borei class was supposed to carry was abandoned after several failed tests, and the submarine was redesigned for the Bulava missile. Based on the Russian Topol-M (SS-27) ICBM the Bulava missile is smaller than the original SS-N-28, and in the 2007 START treaty data exchange it was reported that all Borei-class submarines would carry 16 missiles instead of 12, as originally intended. [READ THE REST OF THIS ARTICLE]





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