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South African class NG G13
The NG G13 was created as the successor to the NG G11 for the two-foot narrow-gauge network. It was significantly enlarged compared to its predecessor and was given an inner carrying axle on each bogie , leading to th...
| South African class NG G13Remove | |
|---|---|
| Variant | Standard |
| Built | 1927-1928 |
| Manufacturers | Hanomag |
| Wheel arrangement | (1C1)(1C1) t ga |
| Gauge | 610 mm |
| Length | 14764 mm |
| Service mass | 62650 kg |
| Top speed | 40 km/h |
| Power | |
| Engine |
General
| Property | South African class NG G13 Standard Remove |
|---|---|
| Built | 1927-1928 |
| Manufacturers | Hanomag |
| Wheel arrangement | 2-6-2+2-6-2T (Double Prairie (Garratt)) |
| Gauge | 610 mm |
Dimensions and weights
| Property | South African class NG G13 Standard Remove |
|---|---|
| Length | 14.76 m |
| Wheelbase | 4.01 m |
| Total wheelbase | 13.03 m |
| Service mass | 62.7 t |
| Adhesion mass | 41.7 t |
| Rigid wheelbase | 1.91 m |
| Axle load | 7.2 t |
| Water capacity | 8,298 l |
| Fuel capacity | 4.1 t (coal) |
Boiler
| Property | South African class NG G13 Standard Remove |
|---|---|
| Grate area | 1.812 m² |
| Firebox surface | 7.627 m² |
| Tube heating surface | 77.936 m² |
| Evaporative heating surface | 85.564 m² |
| Superheater surface | 13.843 m² |
| Total heating surface | 99.4 m² |
Power plant
| Property | South African class NG G13 Standard Remove |
|---|---|
| Driver diameter | 838 mm |
| Boiler pressure | 12.4 bar |
| Expansion type | simple expansion |
| Cylinders | four, 305 x 406 mm |
Power
| Property | South African class NG G13 Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 522 kW (710 PS) |
| Top speed | 40 km/h |
| Starting effort | 95.0 kN |
Calculated values
| Property | South African class NG G13 Standard Remove |
|---|---|
| Factor of adhesion | 1 : 4.31 |
| Optimal speed | 34 km/h |
| Power-to-weight ratio | 8.3 kW/t |
| Heating Surface Equivalent | 151.4 m² |
| Cylinder volume/HSE | 1 : 783.53 |
| Adhesive weight/Total | 1 : 1.50 |
| Tractive force/Heating surface | 1 : 19.97 |
| Grate area/Heating surface | 1 : 54.86 |
| Firebox/Tube surface | 1 : 10.22 |
| Total/Superheater | 1 : 6.18 |
