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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク RML 8 inch 9 ton gun ： ウィキペディア英語版 RML 8 inch 9 ton gun The British RML 8 inch 9 ton guns Mark I - Mark III〔Mark I - Mark III = Mark 1 through to Mark 3. Britain used Roman numerals to denote Marks (models) of ordnance until after World War II. Hence this article describes the three models of RML 8-inch guns.〕 were medium rifled muzzle-loading guns used to arm smaller ironclad warships and coast defence batteries in the later 19th century. ==Design== In common with other Royal Ordnance RML designs of the 1860s, Mark I used the strong but expensive Armstrong system of a steel tube surrounded by a complex system of multiple wrought-iron coils, which was progressively simplified in Marks II and III to reduce costs : Mark III consisted only of A tube, B tube, breech coil and cascabel screw. Rifling was of the "Woolwich" pattern of a small number of broad shallow grooves : 4 grooves with twist increasing from 0 to 1 turn in 40 calibres (i.e. in 320 inches) at the muzzle. 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「RML 8 inch 9 ton gun」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.