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The Great Northern Railway (GNR) Class O2 was a class of three-cylinder 2-8-0 steam locomotive designed by Nigel Gresley for freight work and built by the GNR from 1921. Further examples were built by the London and North Eastern Railway (LNER) from 1924. ==Sub-classes== The LNER created four sub-classes: 〔Ian Allan ABC of British Railways Locomotives, summer 1961 edition, part 4, pp 37-38〕 * O2/1, Introduced 1921. Development of experimental Gresley GNR 3-cylinder locomotive (LNER 3921). Subsequently rebuilt with side-window cab and reduced boiler mountings. * O2/2, Introduced 1924. Development of O2/1 with detail differences. * O2/3, Introduced 1932. Development of O2/2 with side-window cab and reduced boiler mountings. * O2/4, Introduced 1943. Rebuilt with 100A (B1 type) boiler and smokebox extended backwards. 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「GNR Class O2」の詳細全文を読む スポンサード リンク
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