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South Eastern class Q
For new suburban lines in London, James Stirling designed a tank locomotive with a 0-4-4T wheel arrangement, which was based on the G&SWR class 1, which he had designed earlier. The 34 locomotives that were built firs...
| South Eastern class QRemove | |
|---|---|
| Variant | |
| Built | 1881-1897 |
| Manufacturers | Neilson & Co.;Ashford;Sharp, Stewart & Co. |
| Wheel arrangement | B2 t |
| Gauge | 1435 mm |
| Length | |
| Service mass | 49431 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | South Eastern class QRemove |
|---|---|
| Built | 1881-1897 |
| Manufacturers | Neilson & Co., Ashford, Sharp, Stewart & Co. |
| Wheel arrangement | 0-4-4T (Forney) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | South Eastern class QRemove |
|---|---|
| Wheelbase | 6.71 m |
| Service mass | 49.4 t |
| Adhesion mass | 30.1 t |
| Rigid wheelbase | 2.26 m |
| Axle load | 16.3 t |
| Water capacity | 4,773 l |
| Fuel capacity | 1.5 t (coal) |
Boiler
| Property | South Eastern class QRemove |
|---|---|
| Grate area | 1.463 m² |
| Firebox surface | 8.57 m² |
| Tube heating surface | 77.086 m² |
| Evaporative heating surface | 85.657 m² |
| Total heating surface | 85.7 m² |
Power plant
| Property | South Eastern class QRemove |
|---|---|
| Driver diameter | 1,676 mm |
| Boiler pressure | 9.7 bar |
| Expansion type | simple expansion |
| Cylinders | two, 457 x 660 mm |
Power
| Property | South Eastern class QRemove |
|---|---|
| Power source | steam |
| Estimated power | 261 kW (355 PS) |
| Starting effort | 67.6 kN |
Calculated values
| Property | South Eastern class QRemove |
|---|---|
| Factor of adhesion | 1 : 4.37 |
| Optimal speed | 24 km/h |
| Power-to-weight ratio | 5.3 kW/t |
| Heating Surface Equivalent | 128.5 m² |
| Cylinder volume/HSE | 1 : 1,687.39 |
| Adhesive weight/Total | 1 : 1.64 |
| Tractive force/Heating surface | 1 : 16.47 |
| Grate area/Heating surface | 1 : 58.55 |
| Firebox/Tube surface | 1 : 8.99 |
