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Indian Railways class XD
The XD was one of several standard designs introduced for the railways of India in the twenties. Being a Mikado type goods locomotive, it was to be lighter than the XE. In the result, it had an axle load of 17 tons an...
| Indian Railways class XDRemove | |
|---|---|
| Variant | Standard |
| Built | 1928-1948 |
| Manufacturers | Vulcan Foundry;Armstron Whitworth;Škoda;North British |
| Wheel arrangement | 1D1 |
| Gauge | 1676 mm |
| Length | 23320 mm |
| Service mass | 97490 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Indian Railways class XD Standard Remove |
|---|---|
| Built | 1928-1948 |
| Manufacturers | Vulcan Foundry, Armstron Whitworth, Škoda, North British |
| Wheel arrangement | 2-8-2 (Mikado) |
| Gauge | 1,676 mm |
Dimensions and weights
| Property | Indian Railways class XD Standard Remove |
|---|---|
| Length | 23.32 m |
| Wheelbase | 10.67 m |
| Total wheelbase | 20.32 m |
| Service mass | 97.5 t |
| Adhesion mass | 69.1 t |
| Total mass | 163.1 t |
| Rigid wheelbase | 5.26 m |
| Axle load | 17.3 t |
| Water capacity | 20,456 l |
| Fuel capacity | 9.1 t (coal) |
Boiler
| Property | Indian Railways class XD Standard Remove |
|---|---|
| Grate area | 4.181 m² |
| Firebox surface | 19.881 m² |
| Tube heating surface | 181.254 m² |
| Evaporative heating surface | 201.135 m² |
| Superheater surface | 50.168 m² |
| Total heating surface | 251.3 m² |
Power plant
| Property | Indian Railways class XD Standard Remove |
|---|---|
| Driver diameter | 1,562 mm |
| Boiler pressure | 12.4 bar |
| Expansion type | simple expansion |
| Cylinders | two, 572 x 711 mm |
Power
| Property | Indian Railways class XD Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 1,119 kW (1,521 PS) |
| Starting effort | 156.9 kN |
Calculated values
| Property | Indian Railways class XD Standard Remove |
|---|---|
| Factor of adhesion | 1 : 4.32 |
| Optimal speed | 43 km/h |
| Power-to-weight ratio | 11.5 kW/t |
| Heating Surface Equivalent | 400.9 m² |
| Cylinder volume/HSE | 1 : 910.19 |
| Adhesive weight/Total | 1 : 1.41 |
| Tractive force/Heating surface | 1 : 13.04 |
| Grate area/Heating surface | 1 : 60.11 |
| Firebox/Tube surface | 1 : 9.12 |
| Total/Superheater | 1 : 4.01 |
