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The Y class was a steam locomotive class built in South Australia for the South Australian Railways. In numbers built the Y class were the largest class of locomotives in the South Australian Railways history, 129 were built between 1885 and 1898. They worked on the narrow gauge network and performed general service on passenger and goods trains. Some members of the Y class were later upgraded and became the Yx class this work started in 1906, and progressed over many years until the 1950s.〔 The initial order for 51 units was placed with Beyer, Peacock and Company of Manchester in England, another 77 were manufactured by James Martin & Co. of Gawler South Australia. Y 179 was the last built of the class and the first locomotive built at the Islington Railway Workshops. The Y class were a variation on the ''narrow gauge mogul'' type, common at the time across all states of Australia, except Victoria. The Yx modifications added a new Belpaire boiler that allowed steam pressure to be set at . The result was a more powerful locomotive. The class saw service across the entire narrow gauge network that included the Southern, Western, Northern and Eyre Peninsula regions of South Australia.〔 ==Preserved units== *Y 97 is preserved in non working order at the National Railway Museum, Port Adelaide. Y97 was originally placed into service on 27 February 1890, and was withdrawn from revenue service on 14 May 1970.〔 *Y 109 is on static display Manjimup, Western Australia *Yx 141 is owned by Pichi Richi Railway and is under restoration at Quorn, expected to be in working order during 2011 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「South Australian Railways Y class」の詳細全文を読む スポンサード リンク
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