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Like the Class 14, the Class 14A had piston valves, Walschaerts valve gear, a Belpaire firebox and was superheated, but it had nearly 6 inches (152 millimetres) less boiler diameter than the Class 14 to reduce the axle loading from 16 long tons 3 hundredweight (16,410 kilograms) to 15 long tons (15,240 kilograms). To compensate for the smaller ...
The engine had inclined cylinders, arranged outside the plate frames. Its balanced slide valves were arranged above the cylinders and were actuated by Stephenson link motion through rocker shafts. The locomotives were the first in South Africa to have "H" section coupling rods and connecting rods. [2]
These trains were then hauled onward to Durban by a pair of Class 14 4-8-2 steam locomotives. [ 2 ] [ 6 ] The success of the Class GA Garratt in proving the suitability of the Garratt design for South African conditions coupled with the economies in crew, fuel and water consumption it offered, provided an incentive for the SAR to consider a new ...
The NGR 2-6-6-0 Mallet locomotive had Walschaerts valve gear, a bar frame and used saturated steam. It was the first articulated compound steam locomotive to enter service in South Africa and its design and large proportions represented a big advance in motive power on Cape gauge. At the time, it was the most powerful locomotive in the country.
The South African Railways Class 15F 4-8-2 of 1938 is a steam locomotive.. The Class 15F was the most numerous steam locomotive class in South African Railways service. . Between 1938 and 1948, 255 of these locomotives with a 4-8-2 Mountain type wheel arrangement entered
The locomotives were superheated, had bar frames, piston valves and used Walschaerts valve gear. The Class GF was the only Double Pacific type Garratt to see service on the SAR and, until the arrival of the Class GMA, was the most numerous Garratt locomotive class in SAR service. It was designed as a mixed traffic locomotive for use on branch ...
The more numerous reboilered Class 12AR locomotives worked throughout most parts of South Africa, being shedded at Kimberley, De Aar, Port Elizabeth and East London in the Cape Province, Glencoe and Newcastle in Natal, Klerksdorp in Transvaal and Kroonstad in the Orange Free State. East London and Port Elizabeth each received four, the latter ...
While the earlier Class 6E1, Series 2 to 7 locomotives had been built with a brake system which consisted of various valves connected to each other with pipes and commonly referred to as a "bicycle frame" brake system, the Class 6E1, Series 8 to 11 locomotives were built with an air equipment frame brake system, commonly referred to as a brake ...