Durban Harbour's ''John Milne''

Durban Harbour's John Milne
Natal Harbours Department locomotive John Milne
Type and origin
Power type Steam
Designer Hunslet Engine Company
Builder Hunslet Engine Company
Serial number 225
Build date 1879
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 (2,000 l)
Firebox type Round-top
 • Firegrate area 7 sq ft (0.65 m2)
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)
Safety valve Salter
Heating surface 392 sq ft (36.4 m2)
 • Tubes 353 sq ft (32.8 m2)
 • Firebox 39 sq ft (3.6 m2)
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 Harbour Board of Natal
Number in class 1
Official name John Milne
Delivered 1879
First run 1879
The 2nd coupled axle had flangeless wheels

Durban Harbour's John Milne of 1879 was a South African steam locomotive from the pre-Union era in the Colony of Natal.

In 1879, the Harbour Board of Natal placed a single 0-6-0ST saddle-tank locomotive in service, its first own locomotive for shunting work on the docks.[1][2][3]

Harbour Board of Natal

A board of commissioners, known as the Harbour Board of Natal, was established by the government of the Colony of Natal at the port of Durban in 1877. It consisted of seven members, the Colonial Engineer, the Collector of Customs, the Port Captain, the Mayor of Durban, two nominees from the Durban Chamber of Commerce and one member appointed by the Natal Government. As in the Cape of Good Hope, the board was responsible for the continuous development of the harbour to be able to accommodate the ever-increasing size and number of ships calling at the port.[1]

Railway operations in the harbour became the responsibility of the Harbours Department of the Government of Natal.[4]

Manufacturer

It would appear that, until 1879, the Natal Government Railways (NGR) provided all the locomotive power for harbour working. The Harbour Board acquired its first own locomotive for shunting work on the docks in 1879. It was a 0-6-0ST saddle-tank engine which had been ordered from Hunslet Engine Company in Leeds and was named John Milne, after the first engineer who had been appointed in 1851 to remove the sand-bar at the entrance to Durban Harbour.[1][2][3]

Service

It is not known whether the engine John Milne 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 which were issued by the SAR Chief Mechanical Engineer in January 1912.[1][5]

References

  1. 1 2 3 4 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. 1 2 NGR Class K of 1879, John Milne & no. 15
  3. 1 2 Espitalier, T.J.; Day, W.A.J. (1944). The Locomotive in South Africa - A Brief History of Railway Development. Chapter III - Natal Government Railways (Continued). South African Railways and Harbours Magazine, September 1944. p. 670.
  4. ↑ Harbours Department of the Government of Natal
  5. ↑ 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)
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