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The ''Visakhapatnam'' class (Project 15B) is a class of stealth guided missile destroyers currently being built for the Indian Navy. Based on the design, the ''Visakhapatnam'' class will be an extensively improved version. Ordered in 2011, the first ship is expected to be completed in 2018. Project 15B destroyers will feature enhanced stealth characteristics as well as incorporate state of the art weaponry and sensors including the long range Barak 8 surface-to-air missile. ==Design and construction== In January 2011, the Cabinet Committee on Security gave approval for a follow-on order of four more destroyers under Project 15B. Project 15B will retain the same hull as 15A ''Kolkata''-class destroyers, but there will be significant changes in the superstructure that will improve the ship's stealth characteristics, it will incorporate a flush deck, include better acoustic signature and infrared signature reduction systems and more sophisticated weaponry such as: Nirbhay land-attack cruise missiles, supersonic anti-ship BrahMos and Barak 8-ER SAMs. They will also be capable of operating two helicopters simultaneously. Russia's Baltic Shipyard has been contracted to provide four sets of line shafts by 2017. Saint Petersburg's Northern Design Bureau was consulted during the design phase.〔(【引用サイトリンク】url=http://www.globalsecurity.org/military/world/india/d-project-15b.htm )〕 The Indian Navy has reported the ships will have a displacement of 7,300 tons (or 7,400 tonnes),〔 however, other sources have stated 8,000 tonnes.〔〔 The total cost of the project is expected to be . Build-time for Project 15B is expected to be shorter than the ''Kolkata'' class, as no major re-designing was be done and would require only the time of ship building. Due to this, each warship is expected to save US$1 billion in costs. The design was finalized and the first destroyer, was launched on 20 April 2015 and is expected to join the Indian Navy by 2018, and the follow on ships being delivered biennial (Every 2 Years).〔〔 The P15-B stealth destroyers have been designed by Indian Navy's in-house unit Directorate of Naval Design. The ship's air defence capability, designed to counter the threat of enemy aircraft and anti-ship cruise missiles, will revolve around the vertical launch and long range supersonic surface-to-surface, air missile system. The system enables the ship to engage shore based and naval surface targets at long range, making it a lethal platform for strike against enemy targets. Four 30 mm rapid-fire guns will provide the ship with close-in-defence capability, while an MR gun will enable her to provide effective naval gunfire support. Indigenously developed twin tube torpedo launchers and rocket launchers will add punch to the ship's, anti-submarine warfare capability.〔(Quantum Stealth; The Invisible Military Becomes A Reality )〕〔The World's Sixth Sense, FLIR Systems, Inc. designs ()〕〔(Developments in Stealth Technology )〕〔(Ship's antisubmarine capability )〕〔(Directorate of Naval Design (DND (SSG)) )〕 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「Visakhapatnam-class destroyer」の詳細全文を読む スポンサード リンク
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