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The ''Freedom'' class is one of two classes of littoral combat ship built for the United States Navy.〔(【引用サイトリンク】title=US Navy Fact File: LITTORAL COMBAT SHIP CLASS - LCS )〕 The ''Freedom'' class was proposed by Lockheed Martin as a contender for USN plans to build a fleet of small, multipurpose warships to operate in the littoral zone. Two ships were approved, to compete with the design offered by General Dynamics and Austal for a construction contract of up to 55 vessels. Despite initial plans to only accept two of the ''Freedom'' and ''Independence'' variants, the Navy has since announced plans to order up to ten additional ships of each class, for a total 12 ships per class. , two ships are active and an additional five are under construction. ==Planning and construction== Planning for a class of small, multipurpose warships to operate in the littoral zone began in the early 2000s. The construction contract was awarded to Lockheed Martin's LCS team (Lockheed Martin, Gibbs & Cox, Marinette Marine, Bollinger Shipyards) in May 2004 for two vessels. These would then be compared to two ships built by Austal USA to determine which design would be taken up by the Navy for a production run of up to 55 ships. On 15 April 2003, the Lockheed Martin LCS team unveiled their Sea Blade concept based on the hull form of the motor yacht ''Destriero''.〔 〕〔("LCS Brochure" ) 〕 The keel of the lead ship was laid down in June 2005, by Marinette Marine in Marinette, Wisconsin.〔 〕 She was christened in September 2006,〔(【引用サイトリンク】url= http://biz.yahoo.com/prnews/080918/neth118.html?.v=2 ) 〕 delivered to the Navy in September 2008, and commissioned that November. During INSURV trials, 2,600 discrepancies were discovered, including 21 considered high-priority.〔 〕 Not all of these were rectified before the ship entered service, as moving the ship away from Milwaukee before the winter freeze was considered a higher priority. Cost overruns during ''Freedom''s construction combined with projected future overruns led the government to issue a "Stop-work" in January 2007 and ultimately led to the cancellation of construction of LCS-3 (the second Lockheed Martin ship) on April 13, 2007. This ship was later re-ordered. After much inconsistency on how testing and orders were to proceed, in November 2010, the USN asked that Congress approve ten of both the ''Freedom'' and ''Independence'' variants. 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「Freedom-class littoral combat ship」の詳細全文を読む スポンサード リンク
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