The South African Railways Class NG G14 2-6-2+2-6-2 of 1931 was an articulated narrow gauge steam locomotive.
|South African Class NG G14 2-6-2+2-6-2|
A single narrow gauge Garratt locomotive was built for the South African Railways by Hannoversche Maschinenbau AG (Hanomag) in 1930. It was very similar to, but slightly larger and heavier than the Class NG G12 of 1927, the smallest Garratt to ever enter service on the SAR. Upon delivery, it was designated Class NG G14 and numbered NG84.
The Class NG G14 locomotive had a 2-6-2+2-6-2 Double Prairie type wheel arrangement like all the previous and subsequent narrow gauge SAR Garratts except the first, the 2-6-0+0-6-2 Double Mogul type Class NG G11. It was very similar in dimensions to the earlier Class NG G12, but it had cylinders with a 1⁄2 inch (13 millimetres) larger bore which not only resulted in more power, but also an increase in axle loading. Like the Class NG G12, it also had an outside plate frame, a round-topped firebox and was superheated. Its piston valves were actuated by Walschaerts valve gear.
The Class NG G14 was placed in service on the narrow gauge line from Fort Beaufort to Seymour, where it became stable mate to Class NG G12 no. NG57. Its service life was similar to that of no. NG57, both being occasionally temporarily assigned to narrow gauge branch lines in other areas of the country to meet seasonal demands on those lines.
In 1940, when the Seymour branch was regauged to Cape gauge, the Class NG G14 and Class NG G12 no. NG57 were both transferred to the Kakamas branch, where they joined Class NG G12 no. NG56 working out of Upington. All three remained there until 1949, when the Kakamas line was also widened to Cape Gauge and they were transferred to South West Africa for a brief period.
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- Paxton, Leith; Bourne, David (1985). Locomotives of the South African Railways (1st ed.). Cape Town: Struik. pp. 10–11, 107. ISBN 0869772112.
- Espitalier, T.J.; Day, W.A.J. (1946). The Locomotive in South Africa - A Brief History of Railway Development. Chapter VII - South African Railways (Continued). South African Railways and Harbours Magazine, February 1946. p. 135.
- Hamilton, Gavin N., The Garratt Locomotive - Garratt Locomotives from Other Builders, retrieved 10 November 2012
- South African Railways and Harbours Locomotive Diagram Book, 2'0" & 3'6" Gauge Steam Locomotives, 15 August 1941, as amended