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The South African Railways Class 12 4-8-2 of 1912 is a steam locomotive. Between April 1912 and 1922 the South African Railways placed altogether forty-six Class 12 steam locomotives with a 4-8-2 Mountain type wheel arrangement in goods train service. ==Manufacturers== The Class 12 was the first locomotive design to originate from the newly established South African Railways (SAR) in 1912. It was in effect an enlarged version of the already successful Class 3B, also designed by SAR Chief Mechanical Engineer (CME) D.A. Hendrie during his years on the Natal Government Railways, and was also built with plate frames, Walschaerts valve gear, superheaters and Belpaire fireboxes.〔〔 Orders for the first eight locomotives in the Class were placed on 22 March 1911. They were built in two batches of four, the first of which was delivered from North British Locomotive Company (NBL) in April 1912, numbered in the range from 1494 to 1497. The second batch, numbered in the range from 1498 to 1501, followed shortly thereafter. These first eight locomotives had pilot bogies with a wheelbase.〔〔〔South African Railways and Harbours Locomotive Diagram Book, 2’0” & 3’6” Gauge Steam Locomotives, 15 August 1941, as amended〕〔Classification of S.A.R. Engines with Renumbering Lists, issued by the Chief Mechanical Engineer’s Office, Pretoria, January 1912, pp. 9, 12, 15, 46 (Reprinted in April 1987 by SATS Museum, R.3125-6/9/11-1000)〕〔North British Locomotive Company works list, compiled by Austrian locomotive historian Bernhard Schmeiser〕 These were followed by another eight in 1913, numbered in the range from 1502 to 1509, and ten more in 1915, numbered in the range from 1510 to 1519, all built by NBL. These and all subsequent Class 12 locomotives had pilot bogies with a wheelbase.〔〔〔 In 1922 Beyer, Peacock and Company (BP) delivered the final twenty Class 12 locomotives, built in two batches of ten and numbered in the range from 1859 to 1878.〔〔Beyer, Peacock and Company production list, excluding Garratts, Customer List V1 04.08.02〕 The Class 12 builders, year built and works numbers are set out in the table.〔〔 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 12 4-8-2」の詳細全文を読む スポンサード リンク
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