SAR class 14
| SAR class 14 (14B, 14R) | |
|---|---|
 Class 14R No. 1701 at Millsite, April 23, 1979
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| Numbering: | 1701-1745, 1746-1760 |
| Number: | 45 + 15 |
| Manufacturer: | Stephenson , Beyer-Peacock |
| Year of construction (s): | 1913-1915 |
| Retirement: | until 1983 |
| Type : | 2'D1 'h2 |
| Gauge : | 1067 mm ( cape track ) |
| Length over coupling: | 19,910 mm |
| Service mass: | 92.2 t |
| Service mass with tender: | 143.9 t |
| Wheel set mass : | 16.4 t |
| Driving wheel diameter: | 1219 mm |
| Cylinder diameter: | 559 mm |
| Piston stroke: | 660 mm |
| Boiler overpressure: | 130.9 N / cm² |
| Grate area: | 3.34 m² (3.44 m² with standard boiler) |
| Water supply: | 19.3 m² |
| Fuel supply: | 10.16 tons of coal |
| Train brake: | Suction air brake |
The class 14 vehicles of the South African Railways (SAR) were steam locomotives with the wheel arrangement 2'D1 '( Mountain ).
Robert Stephenson & Co. delivered 45 copies from 1913 to 1915 for the winding and incline-rich main line between Durban and Ladysmith . They were scaled-down versions of Class 12 and many parts were interchangeable between the two classes. The main difference was the smaller class 14 coupled wheels.
Beyer-Peacock delivered a further 15 machines in 1915. These locomotives, known as Class 14B , did not initially have a superheater because they were intended for suburban traffic with short distances between stops and it was assumed that a high degree of overheating could not be achieved in any case. This calculation did not work out, however, and due to their inefficiency, all 14Bs were retrofitted with superheaters and assigned to Class 14 by 1927.
All 60 locomotives were equipped with new standard boilers in the 1930s . The class name was changed from 14 to 14R (R as in reboilered ). As part of the renovation, the locomotives also received new driver's cabs with the front end that is typical of the SAR.
After the electrification of their main line, the locomotives were relocated to the coastal lines starting from Durban to the north and south. In 1976 many machines were relocated to the mining region around Johannesburg , where they spent their final years in shunting service.
In 1983 the last copies were retired.
literature
- Leith Paxton, David Bourne: Locomotives of the South African Railways. A Concise Guide. C. Strui (Pty) Ltd., Cape Town 1985, ISBN 0-86977-211-2 .
Web links
- Technical data and illustration class 14 (English)
- Technical data and illustration Class 14R (English)