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HMS ''Neptune'' was a Royal Navy dreadnought battleship, intended to be the lead ship of three battleships, but the subsequent two ships had slightly thicker belt armour and were reclassified as the . ==Design== She was the first Royal Navy battleship that differed in her gun turret layout from . She had two wing turrets staggered ''en echelon'' so that all five turrets could shoot in broadside, although in practice the blast damage to the superstructure and boats made this impractical except in an emergency. To achieve this staggering firepower with such a small increase in hull length, the ship was equipped with superfiring rear turrets; arranged so that one would fire over the other when shooting towards the stern. She was the first Royal Navy ship to have a superfiring main armament (the U.S. battleship , launched in 1908, was the first battleship anywhere to have superfiring main turrets). However, the upper of the two turrets could not fire within 30 degrees of the stern without the lower turret being damaged by blast through its sighting hoods. A further saving in length was achieved by siting the ship's boats on a flying deck over the two midships turrets to reduce the length of the vessel. However, had the flying deck been damaged during action, they may have fallen onto the turrets, immobilising them. The bridge was also situated above the conning tower, which risked similarly being obscured if the bridge collapsed.〔 She was one of the first battleships to be built with director gun-control and was used for trials of this then-novel system.〔(【引用サイトリンク】accessdate=4 February 2007 )〕 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 Neptune (1909)」の詳細全文を読む スポンサード リンク
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