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The South African Railways Class GH 4-6-2+2-6-4 of 1928 is an articulated steam locomotive. In 1928 the South African Railways placed two Class GH 4-6-2+2-6-4 Double Pacific type passenger versions of the Class U Union Garratt articulated steam locomotive in service.〔South African Railways and Harbours Locomotive Diagram Book, 2’0” & 3’6” Gauge Steam Locomotives, 15 August 1941, as amended〕 ==Manufacturer== The Class GH, the heavy passenger version of the Class U Union Garratt, was designed and built for the South African Railways (SAR) by Maffei in Munich, Germany. Two locomotives were delivered in 1928, numbered 2320 and 2321, and were erected at the Salt River shops in Cape Town. They were superheated and had Walschaerts valve gear and bar frames.〔〔〔 It has been surmised that, if the same classification practice as that which was used for Garratt and Mallet locomotives had been followed, the Class U and the Class GH should have been designated Class UA and Class UB respectively.〔 Truth is that during the design phase of the two Union Garratt types, they were designated classification letters in the regular SAR Garratt range as Classes GH and GJ. When orders were placed with the manufacturers, however, the Class designation of the Class GH was retained while that of the Double Prairie type was changed to Class U.〔Official Class U 2-6-2+2-6-2 drawing〕 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 African Class GH 4-6-2+2-6-4」の詳細全文を読む スポンサード リンク
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