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British Rail Standard class 6 “Clan”
The BR Standard class 6 Pacific was designed after the Standard class 7 “Britannia”. Since the Britannia was too heavy for many lines in Scotland, a new type of locomotives with a better route availability had to be o...
| British Rail Standard class 6 “Clan”Remove | |
|---|---|
| Variant | Standard |
| Built | 1951-1952 |
| Manufacturers | Crewe |
| Wheel arrangement | 2C1 |
| Gauge | 1435 mm |
| Length | 20955 mm |
| Service mass | 89920 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | British Rail Standard class 6 “Clan” Standard Remove |
|---|---|
| Built | 1951-1952 |
| Manufacturers | Crewe |
| Wheel arrangement | 4-6-2 (Pacific) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | British Rail Standard class 6 “Clan” Standard Remove |
|---|---|
| Length | 20.96 m |
| Wheelbase | 10.90 m |
| Service mass | 89.9 t |
| Adhesion mass | 57.9 t |
| Total mass | 129.7 t |
| Rigid wheelbase | 4.27 m |
| Axle load | 19.3 t |
| Water capacity | 19,321 l |
| Fuel capacity | 7.1 t (coal) |
Boiler
| Property | British Rail Standard class 6 “Clan” Standard Remove |
|---|---|
| Grate area | 3.345 m² |
| Firebox surface | 18.116 m² |
| Tube heating surface | 174.472 m² |
| Evaporative heating surface | 192.588 m² |
| Superheater surface | 54.999 m² |
| Total heating surface | 247.6 m² |
Power plant
| Property | British Rail Standard class 6 “Clan” Standard Remove |
|---|---|
| Driver diameter | 1,880 mm |
| Boiler pressure | 15.5 bar |
| Expansion type | simple expansion |
| Cylinders | two, 495 x 711 mm |
Power
| Property | British Rail Standard class 6 “Clan” Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 1,790 kW (2,434 PS) |
| Starting effort | 122.4 kN |
Calculated values
| Property | British Rail Standard class 6 “Clan” Standard Remove |
|---|---|
| Factor of adhesion | 1 : 4.64 |
| Optimal speed | 90 km/h |
| Power-to-weight ratio | 19.9 kW/t |
| Heating Surface Equivalent | 393.2 m² |
| Cylinder volume/HSE | 1 : 697.06 |
| Adhesive weight/Total | 1 : 1.55 |
| Tractive force/Heating surface | 1 : 10.33 |
| Grate area/Heating surface | 1 : 74.02 |
| Firebox/Tube surface | 1 : 9.63 |
| Total/Superheater | 1 : 3.50 |
