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LSWR M7 class : ウィキペディア英語版 | LSWR M7 class
The LSWR M7 class is a class of 0-4-4 passenger tank locomotive built between 1897 and 1911. The class was designed by Dugald Drummond for use on the intensive London network of the London and South Western Railway (LSWR), and performed well in such tasks. Because of their utility, 105 were built and the class went through several modifications over five production batches. For this reason there were detail variations such as frame length. Many of the class were fitted with push-pull operation gear that enabled efficient use on branch line duties without the need to change to the other end of its train at the end of a journey. Under LSWR and Southern Railway ownership they had been successful suburban passenger engines, although with the increased availability of newer, standard designs, many of the class were diagrammed to take on a new role as reliable branch line engines, especially in Southern England.〔 Members of the class lasted in service until 1964, and two examples have survived into preservation: number 245 in the National Railway Museum, and 53 (as BR 30053) on the Swanage Railway. == Background == Drummond designed these locomotives to answer the need for a larger and more powerful version of William Adams' 0-4-4 T1 class of 1888. The Adams T1 design of 1888 with wheels had been developed to meet the LSWR's requirement for a compact and sure-footed suburban passenger locomotive to be utilised on the intensive commuter timetables around London.〔Casserley, H.C. (1971).〕 However, by the mid-1890s the suburban services around London were growing at a rate which began to preclude the use of these and other older classes of locomotive.
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「LSWR M7 class」の詳細全文を読む
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