South African Class C 4-6-0T

NGR Kitson 2-6-0T
NGR Class G 4-6-0T
South African Class C 4-6-0T
NGR Class G no. 26
Type and origin
♠ - 2-6-0T configuration, as built
- 4-6-0T configuration, modified or as built
Power typeSteam
DesignerKitson & Company
BuilderKitson & Company
Robert Stephenson & Company
Serial numberKitson 2254-2258, 2269-2270, 2358-2360, 2504-2508, 2898-2900
Stephenson 2484-2490, 2519-2520, 2571-2580
ModelNGR Class G
Build date1879-1885
Total produced37
RebuilderNatal Government Railways
Rebuild date1883, 1896 & 1902
Number rebuilt1883: 7 to 4-6-0T (Ten-wheeler)
1896: 1 to 4-6-4T (Baltic)
1902: 1 to 4-6-2T (Pacific)
Specifications
Configuration:
 • Whyte♠ 7 built as 2-6-0T (Mogul)
30 built as 4-6-0T (Ten-wheeler)
 • UIC♠ 7 built as 1’Cn2t
30 built as 2’Cn2t
Driver2nd coupled axle
Gauge3 ft 6 in (1,067 mm) Cape gauge
Leading dia.♠ 24 in (610 mm)
25+34 in (654 mm)
Coupled dia.♠ 38 in (965 mm)
39 in (991 mm)
Wheelbase♠ 14 ft 1 in (4,293 mm)
16 ft 8+14 in (5,086 mm) ​
 • Axle spacing
(Asymmetrical)
1-2: 3 ft 7+12 in (1,105 mm)
2-3: 4 ft 1+12 in (1,257 mm)
 • Leading 5 ft (1,524 mm)
 • Coupled7 ft 9 in (2,362 mm)
Length:
 • Over couplers♠ 24 ft (7,315 mm)
26 ft 34 in (7,944 mm)
 • Over beams21 ft 9+58 in (6,645 mm)
23 ft 10+38 in (7,274 mm)
Height11 ft 7+14 in (3,537 mm)
Frame typePlate
Axle load 8 LT 4 cwt (8,332 kg) ​
 • Leading 5 LT 18 cwt (5,995 kg)
 • 1st coupled 7 LT 14 cwt (7,824 kg)
 • 2nd coupled 8 LT 4 cwt (8,332 kg)
 • 3rd coupled 7 LT 6 cwt (7,417 kg)
Adhesive weight 23 LT 4 cwt (23,570 kg)
Loco weight 29 LT 2 cwt (29,570 kg)
Fuel typeCoal
Fuel capacity♠ 1 LT 5 cwt (1.3 t)
1 LT (1.0 t)
Water cap.700 imp gal (3,180 L)
Firebox:
 • TypeRound-top
 • Grate area11 sq ft (1.0 m2)
Boiler:
 • Pitch5 ft 7 in (1,702 mm)
 • Diameter3 ft 4+34 in (1,035 mm)
 • Tube plates10 ft 3+12 in (3,137 mm)
 • Small tubes130: 1+34 in (44 mm)
Boiler pressure♠ 140 psi (965 kPa)
175 psi (1,207 kPa) reboilered
Safety valveSalter and Ramsbottom
Heating surface:
 • Firebox58 sq ft (5.4 m2)
 • Tubes611 sq ft (56.8 m2)
 • Total surface669 sq ft (62.2 m2)
CylindersTwo
Cylinder size14 in (356 mm) bore
21 in (533 mm) stroke
Valve gearStephenson
Valve typeSlide
CouplersJohnston link-and-pin
AAR knuckle (1930s)
Performance figures
Tractive effort♠ 11,080 lbf (49.3 kN) @ 75%
13,850 lbf (61.6 kN) @ 75%
Career
OperatorsNatal Government Railways
South African Railways
Eskom
ClassNGR Class G, SAR Class C
Number in classNGR 37, SAR 15
NumbersNGR 8-14, 16-26, 29-47
SAR 62-76
Delivered1879-1885
First run1879
Withdrawn1940

The South African Railways Class C 4-6-0T of 1879 was a steam locomotive from the pre-Union era in the Colony of Natal.

Between 1879 and 1885, the Natal Government Railways placed thirty-seven 4-6-0 Ten-wheeler type tank steam locomotives in service. Of these, the first seven were built as 2-6-0T Mogul type locomotives and were subsequently modified to a 4-6-0T wheel arrangement. By 1908 they were designated Class G and in 1912, when some of the survivors were assimilated into the South African Railways, they were renumbered and reclassified to Class C. These were the oldest pre-Union locomotives to be classified and renumbered onto the SAR roster.[1][2][3][4]

  1. ^ Conyngham, Ron V., RHG (28 December 1995). The "K&S" Class Locomotives of the Natal Government Railways. Fish Hoek.{{cite book}}: CS1 maint: multiple names: authors list (link)
  2. ^ Espitalier, T.J.; Day, W.A.J. (May 1944). "The Locomotive in South Africa - A Brief History of Railway Development. Chapter III - Natal Government Railways". South African Railways and Harbours Magazine. pp. 339–340.
  3. ^ Classification of S.A.R. Engines with Renumbering Lists, issued by the Chief Mechanical Engineer's Office, Pretoria, January 1912, pp. 7, 13, 19 (Reprinted in April 1987 by SATS Museum, R.3125-6/9/11-1000)
  4. ^ Paxton, Leith; Bourne, David (1985). Locomotives of the South African Railways (1st ed.). Cape Town: Struik. pp. 10–11, 28. ISBN 0869772112.

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