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London, Midland & Scottish Fairburn 4P 2-6-4T
In his short career as Chief Mechanical Engineer at the LMS, Charles Fairburn designed only one steam locomotive. This was a direct development of Stanier's 2-6-4T, having a shorter rigid wheelbase to be able to negot...
| London, Midland & Scottish Fairburn 4P 2-6-4TRemove | |
|---|---|
| Variant | Standard |
| Built | 1945-1951 |
| Manufacturers | Derby;Brighton |
| Wheel arrangement | 1C2 t |
| Gauge | 1435 mm |
| Length | 13960 mm |
| Service mass | 86618 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | London, Midland & Scottish Fairburn 4P 2-6-4T Standard Remove |
|---|---|
| Built | 1945-1951 |
| Manufacturers | Derby, Brighton |
| Wheel arrangement | 2-6-4T (Adriatic) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | London, Midland & Scottish Fairburn 4P 2-6-4T Standard Remove |
|---|---|
| Length | 13.96 m |
| Wheelbase | 11.30 m |
| Service mass | 86.6 t |
| Adhesion mass | 53.9 t |
| Rigid wheelbase | 4.67 m |
| Axle load | 18.2 t |
| Water capacity | 9,093 l |
| Fuel capacity | 3.6 t (coal) |
Boiler
| Property | London, Midland & Scottish Fairburn 4P 2-6-4T Standard Remove |
|---|---|
| Grate area | 2.481 m² |
| Firebox surface | 13.285 m² |
| Tube heating surface | 113.621 m² |
| Evaporative heating surface | 126.906 m² |
| Superheater surface | 21.368 m² |
| Total heating surface | 148.3 m² |
Power plant
| Property | London, Midland & Scottish Fairburn 4P 2-6-4T Standard Remove |
|---|---|
| Driver diameter | 1,753 mm |
| Boiler pressure | 13.8 bar |
| Expansion type | simple expansion |
| Cylinders | two, 498 x 660 mm |
Power
| Property | London, Midland & Scottish Fairburn 4P 2-6-4T Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 969 kW (1,317 PS) |
| Starting effort | 109.7 kN |
Calculated values
| Property | London, Midland & Scottish Fairburn 4P 2-6-4T Standard Remove |
|---|---|
| Factor of adhesion | 1 : 4.81 |
| Optimal speed | 55 km/h |
| Power-to-weight ratio | 11.2 kW/t |
| Heating Surface Equivalent | 236.1 m² |
| Cylinder volume/HSE | 1 : 1,091.89 |
| Adhesive weight/Total | 1 : 1.61 |
| Tractive force/Heating surface | 1 : 15.46 |
| Grate area/Heating surface | 1 : 59.76 |
| Firebox/Tube surface | 1 : 8.55 |
| Total/Superheater | 1 : 5.94 |
