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The Ferrovie dello Stato Italiane (FS; Italian State Railways) Class 470 (Italian: ''Gruppo 470'') is a 0-10-0 steam locomotive. ==Design and construction== The Class 470 locomotive was one of twelve standard designs developed by the FS right after their institution, and was intended for heavy mountain work. The two extreme axles were given a lateral play of and the central wheels were without flanges, to allow the locomotive to deal even with sharp curves. The boiler was common with that of the FS Class 680, as was the four-cylinder compound Plancher engine, in which the two HP and the two LP cylinders were respectively grouped together, wich each pair being served by a single piston valve via a crossed port arrangement.〔Cornolò, p. 198〕〔Kalla-Bishop, p. 35〕 The Class 470 was unusual in its appearance because the coal reserves were carried on board it, on the left side of the fully enclosed cab, while the water was carried by a separate tender; this has led some to define them "semi-tank locomotives".〔Cornolò, p. 199〕〔Kalla-Bishop, ibidem〕 The Class 470 was built between 1907 and 1911 by Maffei, Ernesto Breda, Officine Meccaniche and Officine Meccaniche e Navali di Napoli, for a total of 143 locomotives.〔Kalla-Bishop, p. 36〕〔Cornolò, p. 198〕 P. M. Kalla-Bishop suggested that the MR 0-10-0 Lickey Banker, which shared with the Class 470 the wheelbase and the crossed port arrangement, may have been inspired by it, as a complete sets of drawings of the Italian locomotive were stored at Derby.〔Kalla-Bishop, p. 35〕 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「FS Class 470」の詳細全文を読む スポンサード リンク
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