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LNER Class Y1 : ウィキペディア英語版 | LNER Class Y1
The LNER Class Y1 was a class of 0-4-0 geared steam locomotives built by Sentinel Waggon Works for the London and North Eastern Railway and introduced in 1925. They passed into British Railways ownership in 1948 and were numbered 68130-68153 〔Ian Allan ABC of British Railways Locomotives, 1948 edition, part 4, pp 46-47〕 but 68134 was withdrawn almost immediately and may not have carried its BR number. ==Power unit==
The superheated vertical water-tube boiler and the engine were similar to those used in Sentinel steam wagons. There were variations within the class as regards boiler size and fuel capacity and these were denoted by sub-classes Y1/1 to Y1/4. The engines had poppet valves and reversing was by sliding camshaft. The advantage of the water-tube boiler was that steam could be raised much more quickly than with a conventional fire-tube boiler.
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「LNER Class Y1」の詳細全文を読む
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