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Nigerian Railways River class
In 1947, Vulcan Foundry built the first 20 locomotives of the River class for the Nigerian Railways. These were 2-8-2 freight locomotives ordered to cope with the rapidly increasing post-war traffic, what most of all ...
| Nigerian Railways River classRemove | |
|---|---|
| Variant | Standard |
| Built | 1947-1954 |
| Manufacturers | Vulcan Foundry;North British;Henschel |
| Wheel arrangement | 1D1 |
| Gauge | 1067 mm |
| Length | |
| Service mass | 73282 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Nigerian Railways River class Standard Remove |
|---|---|
| Built | 1947-1954 |
| Manufacturers | Vulcan Foundry, North British, Henschel |
| Wheel arrangement | 2-8-2 (Mikado) |
| Gauge | 1,067 mm |
Dimensions and weights
| Property | Nigerian Railways River class Standard Remove |
|---|---|
| Wheelbase | 9.20 m |
| Total wheelbase | 17.20 m |
| Service mass | 73.3 t |
| Adhesion mass | 52 t |
| Total mass | 122.9 t |
| Rigid wheelbase | 4.04 m |
| Axle load | 13.2 t |
| Water capacity | 18,185 l |
| Fuel capacity | 10.2 t (coal) |
Boiler
| Property | Nigerian Railways River class Standard Remove |
|---|---|
| Grate area | 3.53 m² |
| Firebox surface | 15.143 m² |
| Tube heating surface | 160.908 m² |
| Evaporative heating surface | 176.051 m² |
| Superheater surface | 45.43 m² |
| Total heating surface | 221.5 m² |
Power plant
| Property | Nigerian Railways River class Standard Remove |
|---|---|
| Driver diameter | 1,219 mm |
| Boiler pressure | 13.8 bar |
| Expansion type | simple expansion |
| Cylinders | two, 457 x 660 mm |
Power
| Property | Nigerian Railways River class Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 1,193 kW (1,622 PS) |
| Starting effort | 132.7 kN |
Calculated values
| Property | Nigerian Railways River class Standard Remove |
|---|---|
| Factor of adhesion | 1 : 3.84 |
| Optimal speed | 55 km/h |
| Power-to-weight ratio | 16.3 kW/t |
| Heating Surface Equivalent | 342.6 m² |
| Cylinder volume/HSE | 1 : 632.88 |
| Adhesive weight/Total | 1 : 1.41 |
| Tractive force/Heating surface | 1 : 12.51 |
| Grate area/Heating surface | 1 : 62.74 |
| Firebox/Tube surface | 1 : 10.63 |
| Total/Superheater | 1 : 3.88 |
