NGR Class K 0-6-0ST

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NGR Class K 0-6-0ST
HB Natal 0-6-0ST no. 15 (1880).jpg
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
Configuration 0-6-0ST
Gauge 3 ft 6 in (1,067 mm) Cape gauge
Driver diameter 36 in (914 mm)
Wheelbase 7 ft 6 in (2.286 m)
Length 22 ft 11 in (6.985 m) over couplers
Height 10 ft 8 in (3.251 m)
Adhesive weight 43,792 lb (19,864 kg)
Loco weight 43,792 lb (19,864 kg) w/o
Fuel type Coal
Fuel capacity 34 long ton (0.76 t)
Water cap 450 imp gal (2,000 l; 540 US gal)
 • Firegrate area
7 sq ft (0.650 m2)
Boiler 3 ft 2 in (0.965 m) diameter outside
7 ft 6.5 in (2.299 m) length inside
5 ft (1.524 m) pitch
Boiler pressure 130 psi (896 kPa)
Heating surface 392 sq ft (36.418 m2)
 • Tubes 97 tubes 1 78 in (47.6 mm) diameter
353 sq ft (32.795 m2)
 • Firebox 39 sq ft (3.623 m2)
Cylinders Two
Cylinder size 12 in (305 mm) bore
18 in (457 mm) stroke
Valve gear Stephenson
Performance figures
Tractive effort 7,020 lbf (31 kN) at 75% pressure
Operators Natal Government Railways
Number in class 1
Numbers 15
Delivered 1880
First run 1880

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

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


In 1880 the Natal Government Railways (NGR) placed an order for a 0-6-0 saddle-tank locomotive with Hunslet Engine Company in Leeds. It was virtually identical to the locomotive John Milne that had been supplied to the Natal Harbours Department from the same manufacturer in 1879 and was built to the same design but with some differences in detail, such as is 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 2-6-0T locomotives of 1879.[1][2][3][5][6]


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 the NGR Class K, which consisted of a potpourri of different tank locomotive types that also included two 0-4-0ST locomotives of 1891 and the remaining four of the 2-6-0T locomotives of 1877.[4][6]


It is not known whether the locomotive had been scrapped or sold by 1912, but 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]


  1. ^ a b c Holland, D.F. (1972). Steam Locomotives of the South African Railways, Volume 2: 1910-1955 (1st ed.). Newton Abbott, Devon: David & Charles. pp. 126–127. ISBN 978-0-7153-5427-8. 
  2. ^ a b The Railway Report for year ending 31 Dec. 1904, Natal Government Railways, Annexure B, Durban, January 1905.
  3. ^ a b NGR Class K of 1879, John Milne & no. 15
  4. ^ a b 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. ^ a b 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)