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Great Western Railway class 5700 “Pannier Tanks”
The first class of tank locomotives that the GWR had built from the beginning as “Pannier Tanks” was the class 5700. Shortly after this came the lighter class 5400. The special shape of the water tanks got its name fr...
| Great Western Railway class 5700 “Pannier Tanks”Remove | |
|---|---|
| Variant | Standard |
| Built | 1929-1950 |
| Manufacturers | Swindon;Armstrong Whitworth;W. G. Bagnall;Beyer, Peacock & Co.;Kerr, Stuart & Co.;North British;Yorkshire Engine Co. |
| Wheel arrangement | C t |
| Gauge | 1435 mm |
| Length | 9500 mm |
| Service mass | 48262 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Great Western Railway class 5700 “Pannier Tanks” Standard Remove |
|---|---|
| Built | 1929-1950 |
| Manufacturers | Swindon, Armstrong Whitworth, W. G. Bagnall, Beyer, Peacock & Co., Kerr, Stuart & Co., North British, Yorkshire Engine Co. |
| Wheel arrangement | 0-6-0T (Six-coupled) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Great Western Railway class 5700 “Pannier Tanks” Standard Remove |
|---|---|
| Length | 9.50 m |
| Wheelbase | 4.72 m |
| Service mass | 48.3 t |
| Adhesion mass | 48.3 t |
| Rigid wheelbase | 4.72 m |
| Axle load | 17 t |
| Water capacity | 5,455 l |
| Fuel capacity | 3.4 t (coal) |
Boiler
| Property | Great Western Railway class 5700 “Pannier Tanks” Standard Remove |
|---|---|
| Grate area | 1.421 m² |
| Firebox surface | 9.504 m² |
| Tube heating surface | 99.936 m² |
| Evaporative heating surface | 109.44 m² |
| Total heating surface | 109.4 m² |
Power plant
| Property | Great Western Railway class 5700 “Pannier Tanks” Standard Remove |
|---|---|
| Driver diameter | 1,410 mm |
| Boiler pressure | 13.8 bar |
| Expansion type | simple expansion |
| Cylinders | two, 444 x 610 mm |
Power
| Property | Great Western Railway class 5700 “Pannier Tanks” Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 373 kW (507 PS) |
| Starting effort | 100.1 kN |
Calculated values
| Property | Great Western Railway class 5700 “Pannier Tanks” Standard Remove |
|---|---|
| Factor of adhesion | 1 : 4.73 |
| Optimal speed | 23 km/h |
| Power-to-weight ratio | 7.7 kW/t |
| Heating Surface Equivalent | 157.0 m² |
| Cylinder volume/HSE | 1 : 1,205.37 |
| Adhesive weight/Total | 1 : 1.00 |
| Tractive force/Heating surface | 1 : 19.11 |
| Grate area/Heating surface | 1 : 77.02 |
| Firebox/Tube surface | 1 : 10.52 |
