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British Rail Standard class 4 4-6-0
The 4-6-0 variant of the Standard class 4 was a mixed-traffic locomotive intended for lines where the Standard class 5 and the Black Five were too heavy. It was essentially a tender version of the Standard class 4 2-6...
General
| Property | British Rail Standard class 4 4-6-0Remove |
|---|---|
| Built | 1951-1957 |
| Manufacturers | Swindon |
| Wheel arrangement | 4-6-0 (Ten-wheeler) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | British Rail Standard class 4 4-6-0Remove |
|---|---|
| Wheelbase | 8.15 m |
| Rigid wheelbase | 4.57 m |
| Total wheelbase | 15.24 m |
| Service weight | 69 t |
| Adhesive weight | 52.4 t |
| Axle load | 17.5 t |
| Total weight | 111.8 t |
| Water capacity | 15,899 l |
| Fuel capacity | 6.1 t (coal) |
Boiler
| Property | British Rail Standard class 4 4-6-0Remove |
|---|---|
| Grate area | 2.481 m² |
| Firebox surface | 13.285 m² |
| Tube heating surface | 129.228 m² |
| Evaporative heating surface | 142.513 m² |
| Superheater surface | 23.969 m² |
| Total heating surface | 166.5 m² |
Power plant
| Property | British Rail Standard class 4 4-6-0Remove |
|---|---|
| Driver diameter | 1,727 mm |
| Boiler pressure | 15.5 bar |
| Expansion type | simple expansion |
| Cylinders | two, 457 x 711 mm |
Power
| Property | British Rail Standard class 4 4-6-0Remove |
|---|---|
| Power source | steam |
| Estimated power | 1,268 kW (1,724 PS) |
| Starting effort | 113.5 kN |
Calculated values
| Property | British Rail Standard class 4 4-6-0Remove |
|---|---|
| Factor of adhesion | 1 : 4.53 |
| Optimal speed | 68 km/h |
| Power-to-weight ratio | 18.4 kW/t |
| Heating Surface Equivalent | 256.9 m² |
| Cylinder volume/HSE | 1 : 909.08 |
| Adhesive weight/Total | 1 : 1.32 |
| Tractive force/Heating surface | 1 : 14.24 |
| Grate area/Heating surface | 1 : 67.10 |
| Firebox/Tube surface | 1 : 9.73 |
| Total/Superheater | 1 : 5.95 |
