NCCR No. G1 and G2
| NCCR G1 and G2 SAR class GK |
|
|---|---|
.jpg) NCCR No. G2, later SAR class GK No. 2341, approx. 1925
|
|
| Numbering: | SAR: 2340-2341 |
| Number: | 2 (+1) |
| Manufacturer: | Beyer-Peacock |
| Year of construction (s): | 1923 (1925) |
| Retirement: | 1957 (1969) |
| Type : | (1'C1 ') (1'C1') h4 (Garratt) |
| Gauge : | 1067 mm ( cape track ) |
| Length over coupling: | k. A. |
| Service mass: | 96.4 t |
| Friction mass: | 64 t |
| Wheel set mass : | 10.6 t |
| Driving wheel diameter: | 1085 mm |
| Impeller diameter: | k. A. |
| Cylinder diameter: | 381 mm |
| Piston stroke: | 558 mm |
| Boiler overpressure: | 124.1 N / cm² |
| Grate area: | 3.15 m² |
| Radiant heating surface: | 14.45 m² |
| Tubular heating surface: | 142.1 m² |
| Superheater area : | 27.9 m² |
| Train brake: | Suction air brake |
The vehicles with the numbers G1 and G2 of the New Cape Central Railway (NCCR) were articulated locomotives of the Garratt design with the wheel arrangement (1'C1 ') (1'C1').
The two locomotives were delivered by Beyer-Peacock in 1923 . The reason for the procurement was the difficult conditions on the winding and incline-rich route of the NCCR between Worcester and Mossel Bay .
The locomotives were similar to the GC class , which was built based on its model in 1924, but had a larger cylinder diameter, greater tractive effort and larger heating and superheater surfaces with roughly the same total weight. Therefore, after the takeover of the NCCR by the South African Railways (SAR) in 1925, they were assigned to the separate class GK (the previous class designations GI and GJ were never assigned).
Another locomotive of the same design was delivered to the Vryheid Railway Coal & Iron Co. as an industrial locomotive in 1925 . In 1969 - twelve years after the SAR locomotives had been decommissioned - it was retired and replaced by a GCA class locomotive bought by SAR .
All three locomotives were scrapped after they were retired.
literature
- AE Durrant: Garratt locomotives of the world. Birkhäuser, Basel et al. 1984, ISBN 3-7643-1481-8 .
