loco-info.com
The reference for locomotives and railcars
Navigation
Random
Search
Compare
Settings

Navigation

Page views since 2023-01-26: 260498
Steam Locomotives from Transvaal[Inhalt]
Central South African class E
South African classes H1 and 13
South Africa | 1901 | 35 produced
as built as 4-10-2T
as built as 4-10-2T
archive SAR

During the Second Boer War, the British troops urgently needed powerful tank locomotives. Since the Natal Government Railways had already procured a ten-coupled tank locomotive from British production, the Reid Tenwheeler, they used this design and ordered 35 units as well. The order was divided between Dübs and Neilson, Reid in order to achieve a larger number in a short time. A visible difference to the NGR locomotives was the weatherboard on the coal bunker, which also offered protection from the elements when reversing. The military machines also attracted attention due to the brass parts on the boiler that were always polished to a high gloss.

after the rebuild to 4-8-2T
after the rebuild to 4-8-2T
archive SAR

The first and fifth coupled axles were designed without wheel flanges for better maneuverability, which, however, was fatal to the locomotives in some situations. Especially when reversing, there were often derailments when entering tight curves or switches because the leading coupled axle had no wheel flanges. One attempted solution was to widen the wheel tyres, but this had only limited success. Despite this problem, the engines provided valuable service during the war until they came to the CSAR at the end of the war.

after the rebuilt to 4-8-0TT
after the rebuilt to 4-8-0TT
Locomotive Magazine, December 1905

In order to really improve negotiation of curves and prevent derailments, it was decided, like the NGR, to remove the fifth coupled axle and thus convert six of the locomotives into a 4-8-2T wheel arrangement. A very large distance between the fourth coupled axle and the trailing axle was now visible, and the load on the trailing axle increased from just over four to just over six tons. With the formation of South African Railways they became Class E as tank locomotives were designated with letters. They were mainly used for shunting and were retired by 1966.

A sample of the former 4-8-0TT without side tanks in November 1974 in the Albion Mines
A sample of the former 4-8-0TT without side tanks in November 1974 in the Albion Mines
Dennis Mitchell

Another conversion was made in 1904, initially on one engine that was intended to increase the range that was too short in the eyes of the SAR. The last coupled axle and the trailing axle were removed together with the coal bunker, the frame was shortened accordingly and an additional tender was attached. Since the water tanks on the sides of the boiler had been retained, it was the design known in English-speaking countries as "Tank and Tender" with the wheel arrangement 4-8-0TT.

Since the second rebuild was successful, all remaining 28 engines were rebuilt in the same form and provided with surplus three-axle tenders. With the SAR they received the class number 13, since tender locomotives were designated with numbers. They were mostly used in the Witwatersrand region, where they were nicknamed “wallopers”, which means “wall runners” in Afrikaans. After their decommissioning, which was completed by 1961, some examples were sold to various mine operators. Some of these locomotives were used until the 1980s, after the side tanks had been removed from some in the meantime.

Variantas builtrebuilt 4-8-2Trebuilt 4-8-0TT
General
Built1901-190219031904
ManufacturerDübs & Co., Neilson, Reid & Co.CSAR
Axle config4-10-2T (Reid Tenwheeler) 4-8-2T (Mountain) 4-8-0TT (Twelve-wheeler) 
Gauge3 ft 6 in (Cape gauge)
Dimensions and Weights
Length37 ft 6 in50 ft 8 1/4 in
Wheelbase30 ft 6 in43 ft 0 1/2 in
Fixed wheelbase16 ft 8 in12 ft 6 in
Service weight154,224 lbs152,320 lbs135,744 lbs
Adhesive weight122,752 lbs116,480 lbs115,920 lbs
Axle load27,440 lbs29,120 lbs30,912 lbs
Water capacity2,258 us gal5,184 us gal
Fuel capacity8,960 lbs (coal)12,320 lbs (coal)
Power
Power sourcesteam
Estimated power750 hp (559 kW)
Optimal speed15 mph
Starting effort32,219 lbf
Power Plant
Driver diameter45 in
Boiler pressure175 psi
Expansion typesimple
Cylinderstwo, 19 x 27 in
Boiler
Grate area21 sq ft
Firebox area135 sq ft
Tube heating area1,359 sq ft
Evaporative heating area1,494 sq ft
Total heating area1,494 sq ft
Calculated Values
steam locomotive
tank locomotive
freight
passenger
tank and tender
last changed: 10/2022
Central South African class 10
South African classes 10 and 10D
Great Britain | 1904 | 16 produced
Standard variant together with the management of North British
Standard variant together with the management of North British
Locomotive Magazine, June 1904

In 1904, the CSAR received 15 class 10 Pacifics from North British for express service. An innovation for South Africa, they had a wide firebox that was located behind the last driving axle and above the trailing axle. Due to its suitability for poorer coal and the possible greater power, this design quickly became established. Together with the class 11 Mikados, they were at the time the heaviest locomotives ever built for the Cape Gauge. This was only possible because the CSAR had laid heavier rails weighing 80 instead of 40 pounds per yard.

In 1910 another class 10 locomotive was placed into service, now supplied by ALCO. It was used to compare the locomotives otherwise sourced from Great Britain with American ones. This locomotive had a bar frame instead of the plate frame common to British manufacturers and was delivered directly with a superheater

class 10D by Baldwin
class 10D by Baldwin
SAR Museum

The 15 British machines were also retrofitted with a superheater in 1910. They were still called class 10 when renumbered by the SAR in 1912, while ALCO's single one formed class 10D. The latter was scrapped in 1931. The others were used on commuter and suburban trains from 1959 after some key main lines were electrified. They were retired by 1972 and two were preserved.

Variant10superheated10D
General
Built19041910
ManufacturerNorth BritishSARALCO
Axle config4-6-2 (Pacific) 
Gauge3 ft 6 in (Cape gauge)
Dimensions and Weights
Length64 ft 6 3/4 in62 ft 7 in
Length loco36 ft 11 in
Wheelbase30 ft 2 in29 ft 8 in
Fixed wheelbase10 ft 10 in11 ft 2 in
Total wheelbase56 ft 4 in55 ft
Service weight145,600 lbs162,960 lbs161,280 lbs
Adhesive weight110,460 lbs103,040 lbs108,976 lbs
Total weight256,060 lbs273,500 lbs265,776 lbs
Axle load33,700 lbs34,720 lbs36,960 lbs
Water capacity4,804 us gal
Fuel capacity22,000 lbs (coal)20,000 lbs (coal)
Power
Power sourcesteam
Estimated power950 hp (708 kW)1,125 hp (839 kW)1,100 hp (820 kW)
Optimal speed24 mph26 mph38 mph
Starting effort24,962 lbf27,734 lbf18,501 lbf
Power Plant
Driver diameter62 in
Boiler pressure190 psi170 psi
Expansion typesimple
Cylinderstwo, 18 1/2 x 28 intwo, 19 1/2 x 28 intwo, 21 x 18 in
Boiler
Grate area33 sq ft35 sq ft
Firebox area126 sq ft125 sq ft133 sq ft
Tube heating area1,716 sq ft1,463 sq ft1,848 sq ft
Evaporative heating area1,842 sq ft1,588 sq ft1,981 sq ft
Superheater area384 sq ft353 sq ft
Total heating area1,842 sq ft1,972 sq ft2,334 sq ft
Calculated Values
steam locomotive
express
last changed: 01/2024
Central South African class 10-2
South African classes 10A and 10B
South Africa | 1910 | 15 produced
Class 10BR No. 751, a former 10A, in September 1962
Class 10BR No. 751, a former 10A, in September 1962
Leith Paxton

The CSAR class 10-2 is made up of Pacific tender locomotives which were primarily based on the Class 10. In 1910, five locomotives were built without and five with a Schmidt superheater. Here it was shown that the locomotives with a superheater could pull about 25 percent more. In 1911 five more were built with superheaters and in 1912 the SAR classified the two variants as class 10A and 10B. In the thirties a total of ten were fitted with the standard boiler No. 1 of A.G. Watson and renamed class 10BR. They remained in service until 1974.

Variant10A10Brebuilt 10BR
General
Built19101910-1911
ManufacturerNorth BritishNorth British, Beyer, Peacock & Co.
Axle config4-6-2 (Pacific) 
Gauge3 ft 6 in (Cape gauge)
Dimensions and Weights
Length63 ft 10 3/4 in
Wheelbase30 ft 2 in
Fixed wheelbase10 ft 10 in
Total wheelbase55 ft 8 in
Service weight165,200 lbs166,768 lbs170,464 lbs
Adhesive weight105,280 lbs107,856 lbs
Total weight275,744 lbs277,312 lbs281,008 lbs
Axle load35,616 lbs35,168 lbs36,736 lbs
Water capacity4,804 us gal
Fuel capacity22,400 lbs (coal)
Power
Power sourcesteam
Estimated power950 hp (708 kW)1,100 hp (820 kW)
Optimal speed23 mph25 mph
Starting effort26,276 lbf27,639 lbf
Power Plant
Driver diameter62 in
Boiler pressure200 psi180 psi
Expansion typesimple
Cylinderstwo, 18 1/2 x 28 intwo, 20 x 28 in
Boiler
Grate area34.6 sq ft35 sq ft36 sq ft
Firebox area128 sq ft125 sq ft123 sq ft
Tube heating area1,682 sq ft1,463 sq ft1,497 sq ft
Evaporative heating area1,810 sq ft1,588 sq ft1,620 sq ft
Superheater area384 sq ft366 sq ft
Total heating area1,810 sq ft1,972 sq ft1,986 sq ft
Calculated Values
steam locomotive
express
passenger
G.G. Elliot
last changed: 04/2023
loading...

We use cookies to save the following settings:

  • selected navigation structure
  • selected language
  • preferred units
  • spelling of railway company names

If you refuse the use of cookies, the settings will only be retained for the current session and will be reset to the default values the next time you visit the site.

Display of units

Here you can set the desired unit system for the technical data.

  • Metric: Lengths in meters, weights in tonnes, and volumes in cubic meters
  • Imperial (UK): Lengths in feet/inches, weights in long tons and volumes in imperial gallons
  • Imperial (US): Lengths in feet/inches, weights in pounds, and volumes in US gallons
  • Individual: Depends on the country of origin of each locomotive
Operator names

Here you can set the display of railway company names.

  • Short: Abbreviation or short form of the name
  • Standard: commonly used name, partially translated to English
  • Complete: full name in local language