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Cape Government Railways class 1 4-4-0
A problem with the Cape Government Railways mainline locomotives of the 1870s was the small driver diameter of less than 40 inches. On passenger trains in particular, this led to high wear if they were ran at higher s...
General
| Property | Cape Government Railways class 1 4-4-0Remove |
|---|---|
| Built | 1879-1880 |
| Manufacturers | Avonside, Neilson & Co. |
| Wheel arrangement | 4-4-0 (American) |
| Gauge | 1,067 mm (Cape gauge) |
Dimensions and weights
| Property | Cape Government Railways class 1 4-4-0Remove |
|---|---|
| Length | 12.60 m |
| Wheelbase | 5.28 m |
| Rigid wheelbase | 1.98 m |
| Total wheelbase | 10.16 m |
| Service weight | 23.5 t |
| Adhesive weight | 16.3 t |
| Axle load | 8.2 t |
| Total weight | 40.8 t |
| Water capacity | 7,730 l |
| Fuel capacity | 2.5 t (coal) |
Boiler
| Property | Cape Government Railways class 1 4-4-0Remove |
|---|---|
| Grate area | 0.929 m² |
| Firebox surface | 4.831 m² |
| Tube heating surface | 47.659 m² |
| Evaporative heating surface | 52.49 m² |
| Total heating surface | 52.5 m² |
Power plant
| Property | Cape Government Railways class 1 4-4-0Remove |
|---|---|
| Driver diameter | 1,219 mm |
| Boiler pressure | 9 bar |
| Expansion type | simple expansion |
| Cylinders | two, 356 x 457 mm |
Power
| Property | Cape Government Railways class 1 4-4-0Remove |
|---|---|
| Power source | steam |
| Estimated power | 149 kW (203 PS) |
| Starting effort | 36.1 kN |
Calculated values
| Property | Cape Government Railways class 1 4-4-0Remove |
|---|---|
| Factor of adhesion | 1 : 4.42 |
| Optimal speed | 26 km/h |
| Power-to-weight ratio | 6.3 kW/t |
| Heating Surface Equivalent | 76.6 m² |
| Cylinder volume/HSE | 1 : 1,184.86 |
| Adhesive weight/Total | 1 : 1.45 |
| Tractive force/Heating surface | 1 : 14.38 |
| Grate area/Heating surface | 1 : 56.50 |
| Firebox/Tube surface | 1 : 9.87 |
