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HMS Shannon (1757) : ウィキペディア英語版 | HMS Shannon (1757)
HMS ''Shannon'' was a 28-gun ''Coventry''-class sixth-rate frigate of the Royal Navy. ==Construction== The ''Shannon'' was one of five frigates of the class built of fir rather than oak. Fir was cheaper and more abundant than oak and permitted noticeably faster construction, but at a cost of a reduced lifespan; the four fir-built ''Coventry''-class vessels that did not get captured lasted an average of only nine years before being struck off.
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「HMS Shannon (1757)」の詳細全文を読む
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