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Natal Government Railways class G
Shortly after the changeover to cape gauge , the NGR ordered seven tank locomotives with a 2-6-0T wheel arrangement. They were quickly converted to the 4-6-0T wheel arrangement and all 30 others were built with this w...
General
| Property | Natal Government Railways class G Remove |
|---|---|
| Built | 1883-1885 |
| Manufacturers | Kitson & Co., Robert Stephenson & Co. |
| Wheel arrangement | 4-6-0T (Ten-wheeler) |
| Gauge | 1,067 mm (Cape gauge) |
Dimensions and weights
| Property | Natal Government Railways class G Remove |
|---|---|
| Length | 7.94 m |
| Wheelbase | 5.09 m |
| Rigid wheelbase | 2.36 m |
| Service weight | 29.6 t |
| Adhesive weight | 23.6 t |
| Axle load | 8.3 t |
| Water capacity | 3,184 l |
| Fuel capacity | 1 t (coal) |
Boiler
| Property | Natal Government Railways class G Remove |
|---|---|
| Grate area | 1.022 m² |
| Firebox surface | 5.388 m² |
| Tube heating surface | 56.764 m² |
| Evaporative heating surface | 62.152 m² |
| Total heating surface | 62.2 m² |
Power plant
| Property | Natal Government Railways class G Remove |
|---|---|
| Driver diameter | 991 mm |
| Boiler pressure | 12.1 bar |
| Expansion type | simple expansion |
| Cylinders | two, 356 x 533 mm |
Power
| Property | Natal Government Railways class G Remove |
|---|---|
| Power source | steam |
| Estimated power | 149 kW (203 PS) |
| Starting effort | 69.8 kN |
Calculated values
| Property | Natal Government Railways class G Remove |
|---|---|
| Factor of adhesion | 1 : 3.31 |
| Optimal speed | 13 km/h |
| Power-to-weight ratio | 5.0 kW/t |
| Heating Surface Equivalent | 89.1 m² |
| Cylinder volume/HSE | 1 : 1,189.21 |
| Adhesive weight/Total | 1 : 1.25 |
| Tractive force/Heating surface | 1 : 23.47 |
| Grate area/Heating surface | 1 : 60.81 |
| Firebox/Tube surface | 1 : 10.54 |
