|
The South African Railways Class 12A 4-8-2 of 1919 is a steam locomotive. Between 1919 and 1929 the South African Railways placed sixty-seven steam locomotives with a 4-8-2 Mountain type wheel arrangement in service. ==Manufacturers== The Class 12A was the final locomotive design by D.A. Hendrie, Chief Mechanical Engineer (CME) of the South African Railways (SAR) from 1910 to 1922, and one of his finest. It was an improved and larger version of his Class 12 locomotive, with larger diameter cylinders to improve tractive effort and a redesigned boiler that included a combustion chamber. The locomotives were superheated and had Walschaerts valve gear and Belpaire fireboxes.〔 Between 1919 and 1929 altogether sixty-seven of them were built on five orders, forty-eight by the North British Locomotive Company (NBL) in Scotland and nineteen by Henschel and Son in Kassel, Germany. Their works numbers are listed in the table below.〔 * The first twenty were built by NBL and were delivered in 1919, numbered in the range from 1520 to 1539.〔North British Locomotive Company works list, compiled by Austrian locomotive historian Bernhard Schmeiser〕 * These were followed by another fifteen from NBL that were built in late 1919 but that were only delivered in 1921, numbered in the range from 2111 to 2125.〔 * The Henschel-built locomotives only arrived several years later. Six were delivered in 1928 and numbered in the range from 1540 to 1545.〔Henschel-Lieferliste (Henschel & Son works list), compiled by Dietmar Stresow〕 * Another thirteen were delivered by Henschel in 1929, numbered in the ranges from 1546 to 1550 and 2103 to 2110, filling the gaps in the numbering sequence.〔 * The final thirteen, once again built by NBL, were also delivered in 1929 and numbered in the range from 2126 to 2138.〔 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 12A 4-8-2」の詳細全文を読む スポンサード リンク
|