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| factorofadhesion = | trainheating = | locobrakes = | locobrakeforce = | trainbrakes = | safety = | operator = Natal Government Railways South African Railways | operatorclass = Class NG3 | powerclass = | numinclass = 6 | fleetnumbers = NGR 4-9, SAR NG4-NG9 | officialname = | nicknames = | axleloadclass = | locale = | deliverydate = 1907 | firstrundate = 1907 | lastrundate = | retiredate = | withdrawndate = 1946 | preservedunits = | restoredate = | scrapdate = | currentowner = | disposition = | notes = }} The South African Railways Class NG3 4-6-2T of 1907 is a narrow gauge steam locomotive from the pre-Union era in the Natal Colony. In 1907 the Natal Government Railways placed six 4-6-2 Pacific type narrow gauge tank steam locomotives in service. In 1912, when these locomotives were assimilated into the South African Railways, they retained their engine numbers, but with an "NG" prefix added. When a system of grouping narrow gauge locomotives into classes was eventually introduced somewhere between 1928 and 1930, they were classified as Class NG3.〔Classification of S.A.R. Engines with Renumbering Lists, issued by the Chief Mechanical Engineer’s Office, Pretoria, January 1912, pp. 12, 16, 47 (Reprinted in April 1987 by SATS Museum, R.3125-6/9/11-1000)〕 ==Manufacturer== Commonly known as the Hawthorn Leslie Side Tanks, the second batch of narrow gauge 4-6-2T tank locomotives of the Natal Government Railways (NGR) were built to the design of NGR Locomotive Superintendent D.A. Hendrie, based on his earlier design of the Hunslet Side Tank 4-6-2T locomotives of 1906.〔 An order for six of these locomotives was placed with Hawthorn Leslie and Company. They became part of the Class N on the NGR and were numbered in the range from 4 to 9 when they were delivered in 1907, in anticipation of the opening of the Donnybrook line the following year. The locomotives had outside plate frames and used Walschaerts valve gear.〔 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 NG3 4-6-2T」の詳細全文を読む スポンサード リンク
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