SR No. 250 to 259
| SR No. 250 to 259 RR class 17 CFM No. 921 to 930 |
|
|---|---|
| Numbering: | RR: 271-280 |
| Number: | 10 |
| Manufacturer: | Beyer-Peacock |
| Year of construction (s): | 1936/37 |
| Type : | (2'C2 ') (2'C2') h4 (Garratt) |
| Gauge : | 1067 mm ( cape track ) |
| Length over coupling: | 27,412 mm |
| Service mass: | 171.5 t |
| Friction mass: | 75.8 t |
| Wheel set mass : | 12.7 t |
| Driving wheel diameter: | 1447 mm |
| Impeller diameter: | k. A. |
| Cylinder diameter: | 425 mm |
| Piston stroke: | 660 mm |
| Boiler overpressure: | 14 bar |
| Grate area: | 4.0 m² |
| Radiant heating surface: | 17.09 m² |
| Tubular heating surface: | 165 m² |
| Superheater area : | 40.9 m² |
| Train brake: | Suction air brake |
The vehicles with the numbers 250 to 259 of Sudan Railways (SR) were articulated locomotives of the Garratt design . These were the first locomotives with the wheel arrangement (2'C2 ') (2'C2'), also called "Double Hudson" or "Double Baltic", and one of only two series with this axis arrangement worldwide.
The ten locomotives were delivered by Beyer-Peacock in 1936 and 1937 , as the first and only Garratt series of Sudan Railways. The relatively large number of running axles for a Garratt was needed in order to be able to accommodate a large water supply on weak tracks. The operational area was the routes between Port Sudan to Atbara and from Atbara to Wad Madani .
A reinforcement of the superstructure, which allowed the use of stiff-framed steam locomotives, and the use of diesel locomotives made the Garratts redundant shortly after the Second World War. After only 12 years of service, all ten locomotives were sold to Rhodesian Railways (RR) in 1949 , where they were classified as Class 17 with the numbers 271 to 280. There they supplemented the class 15 / 15A locomotives , which had the same wheel alignment and the same drive wheel diameter, but were heavier and more powerful.
After 15 years of service in Rhodesia, the ten locomotives were sold to the CFM in Mozambique in 1964 , where they were given the numbers 921 to 930. They were used on the Beira Railway, which runs from the port city of Beira to Zimbabwe, until the 1980s.
The further fate of the locomotives in the civil war-ridden Mozambique is unclear. In lists of preserved Garratt locomotives, however, none are included anymore, so that one has to assume that they have since been scrapped.
literature
- AE Durrant: Garratt locomotives of the world. Birkhäuser, Basel et al. 1984, ISBN 3-7643-1481-8 .
Individual evidence
- ↑ Surviving Garratt Locomotives ( Memento of the original dated May 3, 2007 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
