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South African class GF
The South African Railways were looking for a powerful locomotive that could also be used on branch lines and that would be suitable for mixed service at a higher speed. Since at that time only articulated locomotives...
| South African class GFRemove | |
|---|---|
| Variant | Hanomag |
| Built | 1927 |
| Manufacturers | Hanomag |
| Wheel arrangement | (2C1)(1C2) t ga |
| Gauge | 1067 mm |
| Length | 23495 mm |
| Service mass | 145500 kg |
| Top speed | 80 km/h |
| Power | |
| Engine |
General
| Property | South African class GFHanomag |
|---|---|
| Built | 1927 |
| Manufacturers | Hanomag |
| Wheel arrangement | 4-6-2+2-6-4T (Double Pacific (Garratt)) |
| Gauge | 1,067 mm |
Dimensions and weights
| Property | South African class GFHanomag |
|---|---|
| Length | 23.50 m |
| Wheelbase | 7.19 m |
| Total wheelbase | 21.26 m |
| Service mass | 145.5 t |
| Adhesion mass | 83.8 t |
| Rigid wheelbase | 2.90 m |
| Axle load | 14.2 t |
| Water capacity | 18,185 l |
| Fuel capacity | 10.2 t (coal) |
Boiler
| Property | South African class GFHanomag |
|---|---|
| Grate area | 4.088 m² |
| Firebox surface | 18.488 m² |
| Tube heating surface | 189.801 m² |
| Evaporative heating surface | 208.289 m² |
| Superheater surface | 43.943 m² |
| Total heating surface | 252.2 m² |
Power plant
| Property | South African class GFHanomag |
|---|---|
| Driver diameter | 1,372 mm |
| Boiler pressure | 12.8 bar |
| Expansion type | simple expansion |
| Cylinders | four, 406 x 660 mm |
Power
| Property | South African class GFHanomag |
|---|---|
| Power source | steam |
| Estimated power | 1,119 kW (1,521 PS) |
| Top speed | 80 km/h |
| Starting effort | 172.4 kN |
Calculated values
| Property | South African class GFHanomag |
|---|---|
| Factor of adhesion | 1 : 4.77 |
| Optimal speed | 40 km/h |
| Power-to-weight ratio | 7.7 kW/t |
| Heating Surface Equivalent | 388.6 m² |
| Cylinder volume/HSE | 1 : 881.75 |
| Adhesive weight/Total | 1 : 1.74 |
| Tractive force/Heating surface | 1 : 14.28 |
| Grate area/Heating surface | 1 : 61.70 |
| Firebox/Tube surface | 1 : 10.27 |
| Total/Superheater | 1 : 4.74 |
