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British Rail Standard class 4 (2-6-0)
Of the three 2-6-0 BR Standard locomotives, the biggest was the class 4. It was developed by Robert Riddles at Doncaster and based on the LMS Ivatt class 4. Although classified as mixed traffic locomotives, they were ...
| British Rail Standard class 4 (2-6-0)Remove | |
|---|---|
| Variant | Standard |
| Built | 1952-1957 |
| Manufacturers | Horwich;Doncaster |
| Wheel arrangement | 1C |
| Gauge | 1435 mm |
| Length | 18288 mm |
| Service mass | 60048 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | British Rail Standard class 4 (2-6-0) Standard Remove |
|---|---|
| Built | 1952-1957 |
| Manufacturers | Horwich, Doncaster |
| Wheel arrangement | 2-6-0 (Mogul) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | British Rail Standard class 4 (2-6-0) Standard Remove |
|---|---|
| Length | 18.29 m |
| Wheelbase | 7.34 m |
| Total wheelbase | 14.00 m |
| Service mass | 60 t |
| Adhesion mass | 51.3 t |
| Total mass | 102.7 t |
| Rigid wheelbase | 4.67 m |
| Axle load | 17 t |
| Water capacity | 15,910 l |
| Fuel capacity | 6.1 t (coal) |
Boiler
| Property | British Rail Standard class 4 (2-6-0) Standard Remove |
|---|---|
| Grate area | 2.137 m² |
| Firebox surface | 12.17 m² |
| Tube heating surface | 89.094 m² |
| Evaporative heating surface | 101.264 m² |
| Superheater surface | 21.461 m² |
| Total heating surface | 122.7 m² |
Power plant
| Property | British Rail Standard class 4 (2-6-0) Standard Remove |
|---|---|
| Driver diameter | 1,600 mm |
| Boiler pressure | 15.5 bar |
| Expansion type | simple expansion |
| Cylinders | two, 444 x 660 mm |
Power
| Property | British Rail Standard class 4 (2-6-0) Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 820 kW (1,115 PS) |
| Starting effort | 107.5 kN |
Calculated values
| Property | British Rail Standard class 4 (2-6-0) Standard Remove |
|---|---|
| Factor of adhesion | 1 : 4.68 |
| Optimal speed | 47 km/h |
| Power-to-weight ratio | 13.7 kW/t |
| Heating Surface Equivalent | 205.0 m² |
| Cylinder volume/HSE | 1 : 999.63 |
| Adhesive weight/Total | 1 : 1.17 |
| Tractive force/Heating surface | 1 : 18.30 |
| Grate area/Heating surface | 1 : 57.43 |
| Firebox/Tube surface | 1 : 7.32 |
| Total/Superheater | 1 : 4.72 |
