NGR Class K 0-6-0ST

The Natal Government Railways Class K 0-6-0ST of 1880 was a South African steam locomotive from the pre-Union era in the Colony of Natal.

This article is about one of several different Natal Government Railways locomotive types to be designated "Class K". For the others, see Natal Government Railways Class K locomotives.

NGR Class K 0-6-0ST
NGR Class K locomotive no. 15, c. 1880
Type and origin Power type Steam Designer Hunslet Engine Company Builder Hunslet Engine Company Serial number 249 Build date 1880
Specifications Configuration: ​  • Whyte 0-6-0ST (Six-coupled)  • UIC Cn2t Driver 2nd coupled axle Gauge 3 ft 6 in (1,067 mm) Cape gauge Coupled dia. 36 in (914 mm) Wheelbase 7 ft 6 in (2,286 mm) Wheel spacing (Asymmetrical) 1-2: 4 ft (1,219 mm) 2-3: 3 ft 6 in (1,067 mm) Length: ​  • Over couplers 20 ft 11 in (6,375 mm)  • Over beams 18 ft 6 in (5,639 mm) Height 10 ft 8 in (3,251 mm) Adhesive weight 43,792 lb (19,864 kg) Loco weight 43,792 lb (19,864 kg) Fuel type Coal Fuel capacity 15 long hundredweight (0.8 t) Water cap 450 imp gal (2,050 l) Firebox type Round-top  • Firegrate area 7 sq ft (0.65 m^2) Boiler: ​  • Pitch 5 ft (1,524 mm)  • Diameter 3 ft 2 in (965 mm) outside  • Tube plates 7 ft 6 ^1⁄2 in (2,299 mm)  • Small tubes 97: 1 ^7⁄8 in (48 mm) Boiler pressure 130 psi (896 kPa) Heating surface 392 sq ft (36.4 m^2)  • Tubes 353 sq ft (32.8 m^2)  • Firebox 39 sq ft (3.6 m^2) Cylinders Two Cylinder size 12 in (305 mm) bore 18 in (457 mm) stroke Valve gear Stephenson Couplers Johnston link-and-pin
Performance figures Tractive effort 7,020 lbf (31.2 kN) @ 75%
Career Operators Natal Government Railways Class Class K Number in class 1 Numbers 15 Delivered 1880 First run 1880
The 2nd coupled axle had flangeless wheels

In 1880, the Natal Government Railways placed a single 0-6-0 saddle-tank locomotive in service. It was virtually identical to the Harbour Board of Natal's locomotive John Milne of 1879 and was built by the same manufacturer. During 1905 or 1906, the locomotive was designated NGR Class K.[1][2][3][4]

Manufacturer

In 1880, the Natal Government Railways (NGR) placed an order for a single 0-6-0 saddle-tank locomotive with Hunslet Engine Company in Leeds. It was virtually identical to the engine John Milne which had been supplied to the Harbour Board of Natal from the same manufacturer in 1879, having been built to the same design, but with some differences in detail such as those visible on the sides of their respective smokeboxes. The locomotive was numbered 15 in the NGR number range, following on from the numbers allocated to the NGR's first batch of Kitson-built Class G 2-6-0T locomotives of 1879.[1][2][3][5][6]

Service

The NGR's no. 15 was still in service by 1909. During 1905 or 1906, a locomotive classification system was introduced on the NGR and no. 15 became part of Class K, which consisted of a potpourri of different tank locomotive types with different wheel arrangements. The Class included the 0-4-0ST locomotives of 1891 and the surviving three of the 2-6-0T locomotives of 1877.[4][6]

Disposition

It is not known whether the locomotive had been scrapped or sold by 1912. It was no longer in service when the South African Railways (SAR) renumbering and classification was implemented in 1912, since it does not appear in the classification and renumbering lists issued by the SAR Chief Mechanical Engineer in January 1912.[1][7]

References

1. Holland, D. F. (1972). Steam Locomotives of the South African Railways. 2: 1910-1955 (1st ed.). Newton Abbott, Devon: David & Charles. pp. 126–127. ISBN 978-0-7153-5427-8.
2. The Railway Report for year ending 31 Dec. 1904, Natal Government Railways, Annexure B, Durban, January 1905.
3. NGR Class K of 1879, John Milne & no. 15
4. The Railway Report for year ending 31 Dec. 1906, Natal Government Railways.
5. The Railway Report for year ending 31 Dec. 1880, Natal Government Railways, p. JJ72.
6. The Railway Report for year ending 31 Dec. 1908, Natal Government Railways, p. 39, par 14.
7. Classification of S.A.R. Engines with Renumbering Lists, issued by the Chief Mechanical Engineer's Office, Pretoria, January 1912. (Reprinted in April 1987 by SATS Museum, R.3125-6/9/11-1000)