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London, Midland & Scottish Garratt
The LMS was the only British railway to order greater numbers of large Garratts. Although the Midland Railway's small engine policy had worked for most of the time, they needed much more powerful locomotives when even...
| London, Midland & Scottish GarrattRemove | |
|---|---|
| Variant | Standard |
| Built | 1927, 1930 |
| Manufacturers | Beyer, Peacock & Co. |
| Wheel arrangement | (1C)(C1) t ga |
| Gauge | 1435 mm |
| Length | 26784 mm |
| Service mass | 151137 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | London, Midland & Scottish Garratt Standard Remove |
|---|---|
| Built | 1927, 1930 |
| Manufacturers | Beyer, Peacock & Co. |
| Wheel arrangement | 2-6-0+0-6-2 (Double Mogul (Garratt)) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | London, Midland & Scottish Garratt Standard Remove |
|---|---|
| Length | 26.78 m |
| Total wheelbase | 24.08 m |
| Service mass | 151.1 t |
| Adhesion mass | 117.9 t |
| Rigid wheelbase | 5.03 m |
| Axle load | 20.6 t |
| Water capacity | 20,456 l |
| Fuel capacity | 7.1 t (coal) |
Boiler
| Property | London, Midland & Scottish Garratt Standard Remove |
|---|---|
| Grate area | 4.134 m² |
| Firebox surface | 17.001 m² |
| Tube heating surface | 181.533 m² |
| Evaporative heating surface | 198.534 m² |
| Superheater surface | 46.452 m² |
| Total heating surface | 245.0 m² |
Power plant
| Property | London, Midland & Scottish Garratt Standard Remove |
|---|---|
| Driver diameter | 1,600 mm |
| Boiler pressure | 13.1 bar |
| Expansion type | simple expansion |
| Cylinders | four, 470 x 660 mm |
Power
| Property | London, Midland & Scottish Garratt Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 1,119 kW (1,521 PS) |
| Starting effort | 202.9 kN |
Calculated values
| Property | London, Midland & Scottish Garratt Standard Remove |
|---|---|
| Factor of adhesion | 1 : 5.70 |
| Optimal speed | 34 km/h |
| Power-to-weight ratio | 7.4 kW/t |
| Heating Surface Equivalent | 376.4 m² |
| Cylinder volume/HSE | 1 : 1,216.94 |
| Adhesive weight/Total | 1 : 1.28 |
| Tractive force/Heating surface | 1 : 17.30 |
| Grate area/Heating surface | 1 : 59.26 |
| Firebox/Tube surface | 1 : 10.68 |
| Total/Superheater | 1 : 4.27 |
