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Indian Railways class WP
The WP was created after the Second World War as the standard express locomotive of Indian Railways. These Pacifics stood out because of their streamlining on the smokebox and were designed to be able to haul heavy tr...
| Indian Railways class WPRemove | |
|---|---|
| Variant | Standard |
| Built | 1947-1967 |
| Manufacturers | Baldwin;Canadian Locomotive Co.;Montreal Locomotive Works;Fablok;Floridsdorf;Chittaranjan |
| Wheel arrangement | 2C1 |
| Gauge | 1676 mm |
| Length | 23609 mm |
| Service mass | 103129 kg |
| Top speed | 121 km/h |
| Power | |
| Engine |
General
| Property | Indian Railways class WP Standard Remove |
|---|---|
| Built | 1947-1967 |
| Manufacturers | Baldwin, Canadian Locomotive Co., Montreal Locomotive Works, Fablok, Floridsdorf, Chittaranjan |
| Wheel arrangement | 4-6-2 (Pacific) |
| Gauge | 1,676 mm |
Dimensions and weights
| Property | Indian Railways class WP Standard Remove |
|---|---|
| Length | 23.61 m |
| Wheelbase | 11.05 m |
| Total wheelbase | 20.80 m |
| Service mass | 103.1 t |
| Adhesion mass | 55.1 t |
| Total mass | 176.2 t |
| Rigid wheelbase | 3.73 m |
| Axle load | 18.8 t |
| Water capacity | 25,003 l |
| Fuel capacity | 15.2 t (coal) |
Boiler
| Property | Indian Railways class WP Standard Remove |
|---|---|
| Grate area | 4.278 m² |
| Firebox surface | 23.69 m² |
| Tube heating surface | 195.282 m² |
| Evaporative heating surface | 218.973 m² |
| Superheater surface | 67.355 m² |
| Total heating surface | 286.3 m² |
Power plant
| Property | Indian Railways class WP Standard Remove |
|---|---|
| Driver diameter | 1,702 mm |
| Boiler pressure | 14.5 bar |
| Expansion type | simple expansion |
| Cylinders | two, 514 x 711 mm |
Power
| Property | Indian Railways class WP Standard Remove |
|---|---|
| Power source | steam |
| Indicated power | 1,998 kW (2,717 PS) |
| Top speed | 121 km/h |
| Starting effort | 136.1 kN |
Calculated values
| Property | Indian Railways class WP Standard Remove |
|---|---|
| Factor of adhesion | 1 : 3.97 |
| Optimal speed | 90 km/h |
| Power-to-weight ratio | 19.4 kW/t |
| Heating Surface Equivalent | 472.1 m² |
| Cylinder volume/HSE | 1 : 625.99 |
| Adhesive weight/Total | 1 : 1.87 |
| Tractive force/Heating surface | 1 : 9.93 |
| Grate area/Heating surface | 1 : 66.93 |
| Firebox/Tube surface | 1 : 8.24 |
| Total/Superheater | 1 : 3.25 |
