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Great Western Railway classes 5205 and 5275
The GWR class 5205 was a class of 2-8-0T tank locomotives designed by Charles Collett for coal traffic on the short, but steep lines from the coal mines in South Wales to the ports. It was based on Churchward's class ...
General
| Property | Great Western Railway classes 5205 and 5275Remove |
|---|---|
| Built | 1923-1926, 1930, 1940 |
| Manufacturers | Swindon |
| Wheel arrangement | 2-8-0T (Consolidation) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Great Western Railway classes 5205 and 5275Remove |
|---|---|
| Wheelbase | 8.76 m |
| Rigid wheelbase | 6.10 m |
| Service weight | 83.5 t |
| Water capacity | 8,184 l |
| Fuel capacity | 4.1 t (coal) |
Boiler
| Property | Great Western Railway classes 5205 and 5275Remove |
|---|---|
| Grate area | 1.91 m² |
| Firebox surface | 14.38 m² |
| Tube heating surface | 156.655 m² |
| Evaporative heating surface | 171.035 m² |
| Superheater surface | 23.504 m² |
| Total heating surface | 194.5 m² |
Power plant
| Property | Great Western Railway classes 5205 and 5275Remove |
|---|---|
| Driver diameter | 1,410 mm |
| Boiler pressure | 13.8 bar |
| Expansion type | simple expansion |
| Cylinders | two, 483 x 762 mm |
Power
| Property | Great Western Railway classes 5205 and 5275Remove |
|---|---|
| Power source | steam |
| Estimated power | 820 kW (1,115 PS) |
| Starting effort | 147.6 kN |
Calculated values
| Property | Great Western Railway classes 5205 and 5275Remove |
|---|---|
| Optimal speed | 34 km/h |
| Power-to-weight ratio | 9.8 kW/t |
| Heating Surface Equivalent | 289.9 m² |
| Cylinder volume/HSE | 1 : 961.47 |
| Tractive force/Heating surface | 1 : 15.84 |
| Grate area/Heating surface | 1 : 101.85 |
| Firebox/Tube surface | 1 : 10.89 |
| Total/Superheater | 1 : 7.28 |
