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Great Western Railway class 6000 “King”
Charles Benjamin Collett, GWR's chief engineer since 1922, soon had the task of developing a more powerful express locomotive than the Castle class of its predecessor Churchward. The goal was to achieve a starting tra...
| Great Western Railway class 6000 “King”Remove | |
|---|---|
| Variant | |
| Built | 1927-1928, 1930, 1936 |
| Manufacturers | Swindon |
| Wheel arrangement | 2C |
| Gauge | 1435 mm |
| Length | 20777 mm |
| Service mass | 90428 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Great Western Railway class 6000 “King”Remove |
|---|---|
| Built | 1927-1928, 1930, 1936 |
| Manufacturers | Swindon |
| Wheel arrangement | 4-6-0 (Ten-wheeler) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Great Western Railway class 6000 “King”Remove |
|---|---|
| Length | 20.78 m |
| Wheelbase | 8.97 m |
| Total wheelbase | 17.51 m |
| Service mass | 90.4 t |
| Adhesion mass | 68.6 t |
| Total mass | 137.9 t |
| Rigid wheelbase | 4.95 m |
| Axle load | 22.9 t |
| Water capacity | 18,185 l |
| Fuel capacity | 6.1 t (coal) |
Boiler
| Property | Great Western Railway class 6000 “King”Remove |
|---|---|
| Grate area | 3.187 m² |
| Firebox surface | 17.977 m² |
| Tube heating surface | 186.596 m² |
| Evaporative heating surface | 204.573 m² |
| Superheater surface | 29.079 m² |
| Total heating surface | 233.7 m² |
Power plant
| Property | Great Western Railway class 6000 “King”Remove |
|---|---|
| Driver diameter | 1,981 mm |
| Boiler pressure | 17.2 bar |
| Expansion type | simple expansion |
| Cylinders | four, 413 x 711 mm |
Power
| Property | Great Western Railway class 6000 “King”Remove |
|---|---|
| Power source | steam |
| Estimated power | 1,566 kW (2,129 PS) |
| Starting effort | 179.2 kN |
Calculated values
| Property | Great Western Railway class 6000 “King”Remove |
|---|---|
| Factor of adhesion | 1 : 3.75 |
| Optimal speed | 53 km/h |
| Power-to-weight ratio | 17.3 kW/t |
| Heating Surface Equivalent | 352.6 m² |
| Cylinder volume/HSE | 1 : 1,079.48 |
| Adhesive weight/Total | 1 : 1.32 |
| Tractive force/Heating surface | 1 : 16.02 |
| Grate area/Heating surface | 1 : 73.31 |
| Firebox/Tube surface | 1 : 10.38 |
| Total/Superheater | 1 : 7.04 |
