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London, Midland & Scottish Stanier class 8F
Since the LMS needed powerful goods locomotives to reduce the need for double-heading, Stanier designed the 8F as a 2-8-0 goods variant of his 4-6-0 “Black Five”. So apart from the changed wheel arrangement with small...
General
| Property | London, Midland & Scottish Stanier class 8FRemove |
|---|---|
| Built | 1935-1946 |
| Manufacturers | Crewe, Horwich, North British, Darlington, Doncaster, Swindon, Vulcan Foundry, Brighton, Eastleigh, Ashford, Beyer, Peacock & Co. |
| Wheel arrangement | 2-8-0 (Consolidation) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | London, Midland & Scottish Stanier class 8FRemove |
|---|---|
| Length | 19.22 m |
| Wheelbase | 8.10 m |
| Rigid wheelbase | 5.26 m |
| Total wheelbase | 16.05 m |
| Service weight | 73.3 t |
| Adhesive weight | 63 t |
| Axle load | 16.3 t |
| Water capacity | 18,185 l |
| Fuel capacity | 9.1 t (coal) |
Boiler
| Property | London, Midland & Scottish Stanier class 8FRemove |
|---|---|
| Grate area | 2.662 m² |
| Firebox surface | 15.886 m² |
| Tube heating surface | 137.404 m² |
| Evaporative heating surface | 153.29 m² |
| Superheater surface | 19.974 m² |
| Total heating surface | 173.3 m² |
Power plant
| Property | London, Midland & Scottish Stanier class 8FRemove |
|---|---|
| Driver diameter | 1,435 mm |
| Boiler pressure | 15.5 bar |
| Expansion type | simple expansion |
| Cylinders | two, 470 x 711 mm |
Power
| Property | London, Midland & Scottish Stanier class 8FRemove |
|---|---|
| Power source | steam |
| Estimated power | 1,342 kW (1,825 PS) |
| Starting effort | 144.3 kN |
Calculated values
| Property | London, Midland & Scottish Stanier class 8FRemove |
|---|---|
| Factor of adhesion | 1 : 4.28 |
| Optimal speed | 56 km/h |
| Power-to-weight ratio | 18.3 kW/t |
| Heating Surface Equivalent | 272.7 m² |
| Cylinder volume/HSE | 1 : 904.67 |
| Adhesive weight/Total | 1 : 1.16 |
| Tractive force/Heating surface | 1 : 17.39 |
| Grate area/Heating surface | 1 : 65.09 |
| Firebox/Tube surface | 1 : 8.65 |
| Total/Superheater | 1 : 7.67 |
