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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 GWR 4000 Class ： ウィキペディア英語版 GWR 4000 Class The Great Western Railway 4000 or Star were a class of 4-cylinder 4-6-0 passenger steam locomotives designed by George Jackson Churchward for the Great Western Railway (GWR) in 1906. The prototype was built as a 4-4-2 (but converted to 4-6-0 during 1909). They proved to be a successful design which handled the heaviest long distance express trains and established the design principles for GWR 4-cylinder classes over the next twenty-five years. ==Background== After finally converting the last broad gauge lines in 1892, the GWR began a period of modernization as new cut-off lines shortened its routes to west of England, South Wales and Birmingham. During the first decade of the twentieth century, the new Chief Mechanical Engineer, George Jackson Churchward designed or acquired a number of experimental locomotives with different wheel arrangements and boiler designs to help him plan for the future motive power needs of the railway. Following the success of the prototypes of his two-cylinder Saint class 4-6-0 locomotives, introduced in 1902, Churchward became interested in developing a more powerful 4-cylinder type for the longer non-stop express services. He therefore persuaded the GWR to acquire three French 4-cylinder 4-4-2 compound locomotives, 102 La France (1904) and 103 President and 104 Alliance (both 1905) for comparison purposes. 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「GWR 4000 Class」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.