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Great Western Railway class 2900 “Saint” and also “Scott”, “Lady” and “Court”
In the search for a modern generation of express locomotives for the GWR, Churchward, who had been appointed chief engineer in 1902, undertook a number of trials. The result of this process was the Saint class, which ...
| Great Western Railway class 2900 “Saint” and also “Scott”, “Lady” and “Court”Remove | |
|---|---|
| Variant | Court |
| Built | 1911-1913 |
| Manufacturers | Swindon |
| Wheel arrangement | 2C |
| Gauge | 1435 mm |
| Length | 19210 mm |
| Service mass | 73155 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Great Western Railway class 2900 “Saint” and also “Scott”, “Lady” and “Court”Court |
|---|---|
| Built | 1911-1913 |
| Manufacturers | Swindon |
| Wheel arrangement | 4-6-0 (Ten-wheeler) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Great Western Railway class 2900 “Saint” and also “Scott”, “Lady” and “Court”Court |
|---|---|
| Length | 19.21 m |
| Wheelbase | 8.31 m |
| Service mass | 73.2 t |
| Adhesion mass | 55.7 t |
| Total mass | 113.8 t |
| Rigid wheelbase | 4.50 m |
| Axle load | 18.5 t |
| Water capacity | 15,910 l |
| Fuel capacity | 5.1 t (coal) |
Boiler
| Property | Great Western Railway class 2900 “Saint” and also “Scott”, “Lady” and “Court”Court |
|---|---|
| Grate area | 2.515 m² |
| Firebox surface | 14.38 m² |
| Tube heating surface | 156.655 m² |
| Evaporative heating surface | 171.035 m² |
| Superheater surface | 24.434 m² |
| Total heating surface | 195.5 m² |
Power plant
| Property | Great Western Railway class 2900 “Saint” and also “Scott”, “Lady” and “Court”Court |
|---|---|
| Driver diameter | 2,045 mm |
| Boiler pressure | 15.5 bar |
| Expansion type | simple expansion |
| Cylinders | two, 470 x 762 mm |
Power
| Property | Great Western Railway class 2900 “Saint” and also “Scott”, “Lady” and “Court”Court |
|---|---|
| Power source | steam |
| Estimated power | 1,081 kW (1,470 PS) |
| Starting effort | 108.5 kN |
Calculated values
| Property | Great Western Railway class 2900 “Saint” and also “Scott”, “Lady” and “Court”Court |
|---|---|
| Factor of adhesion | 1 : 5.03 |
| Optimal speed | 61 km/h |
| Power-to-weight ratio | 14.8 kW/t |
| Heating Surface Equivalent | 291.8 m² |
| Cylinder volume/HSE | 1 : 905.72 |
| Adhesive weight/Total | 1 : 1.31 |
| Tractive force/Heating surface | 1 : 11.59 |
| Grate area/Heating surface | 1 : 77.72 |
| Firebox/Tube surface | 1 : 10.89 |
| Total/Superheater | 1 : 7.00 |
