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Great Northern (UK) Stirling Single
Patrick Stirling believed that locomotives with large wheels would not only be suitable for higher speeds, but would also achieve better traction. So he borrowed a 2-2-2 locomotive from the Great Eastern and used it t...
General
| Property | Great Northern (UK) Stirling Single 1870 variant |
|---|---|
| Built | 1870 |
| Manufacturers | Doncaster |
| Wheel arrangement | 4-2-2 (Single) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Great Northern (UK) Stirling Single 1870 variant |
|---|---|
| Length | 15.42 m |
| Wheelbase | 6.96 m |
| Rigid wheelbase | 2.64 m |
| Service weight | 39.1 t |
| Adhesive weight | 15.2 t |
| Axle load | 15.2 t |
| Total weight | 66.5 t |
| Water capacity | 12,200 l |
| Fuel capacity | 3.6 t (coal) |
Boiler
| Property | Great Northern (UK) Stirling Single 1870 variant |
|---|---|
| Grate area | 1.635 m² |
| Firebox surface | 11.334 m² |
| Tube heating surface | 96.898 m² |
| Evaporative heating surface | 108.232 m² |
| Total heating surface | 108.2 m² |
Power plant
| Property | Great Northern (UK) Stirling Single 1870 variant |
|---|---|
| Driver diameter | 2,464 mm |
| Boiler pressure | 9.7 bar |
| Expansion type | simple expansion |
| Cylinders | two, 457 x 711 mm |
Power
| Property | Great Northern (UK) Stirling Single 1870 variant |
|---|---|
| Power source | steam |
| Estimated power | 410 kW (557 PS) |
| Starting effort | 49.5 kN |
Calculated values
| Property | Great Northern (UK) Stirling Single 1870 variant |
|---|---|
| Factor of adhesion | 1 : 3.02 |
| Optimal speed | 51 km/h |
| Power-to-weight ratio | 10.5 kW/t |
| Heating Surface Equivalent | 164.9 m² |
| Cylinder volume/HSE | 1 : 1,416.11 |
| Adhesive weight/Total | 1 : 2.56 |
| Tractive force/Heating surface | 1 : 9.55 |
| Grate area/Heating surface | 1 : 66.20 |
| Firebox/Tube surface | 1 : 8.55 |
