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Great Western Railway class 3252 “Duke”
The Duke class consisted of 60 4-4-0 express locomotives designed by William Dean for service in Devon and Cornwall, mainly between Newton Abbot and Penzance. After four Armstrong class prototypes built in 1894, the D...
General
| Property | Great Western Railway class 3252 “Duke”Remove |
|---|---|
| Built | 1895-1899 |
| Manufacturers | Swindon |
| Wheel arrangement | 4-4-0 (American) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Great Western Railway class 3252 “Duke”Remove |
|---|---|
| Wheelbase | 6.78 m |
| Rigid wheelbase | 2.59 m |
| Service weight | 46.7 t |
| Adhesive weight | 28.4 t |
| Axle load | 15.2 t |
| Total weight | 72.9 t |
| Water capacity | 9,093 l |
Boiler
| Property | Great Western Railway class 3252 “Duke”Remove |
|---|---|
| Grate area | 1.775 m² |
| Firebox surface | 10.709 m² |
| Tube heating surface | 119.434 m² |
| Evaporative heating surface | 130.143 m² |
| Total heating surface | 130.1 m² |
Power plant
| Property | Great Western Railway class 3252 “Duke”Remove |
|---|---|
| Driver diameter | 1,714 mm |
| Boiler pressure | 11 bar |
| Expansion type | simple expansion |
| Cylinders | two, 457 x 660 mm |
Power
| Property | Great Western Railway class 3252 “Duke”Remove |
|---|---|
| Power source | steam |
| Starting effort | 75.5 kN |
Calculated values
| Property | Great Western Railway class 3252 “Duke”Remove |
|---|---|
| Factor of adhesion | 1 : 3.70 |
| Heating Surface Equivalent | 183.7 m² |
| Cylinder volume/HSE | 1 : 1,180.48 |
| Adhesive weight/Total | 1 : 1.64 |
| Tractive force/Heating surface | 1 : 12.12 |
| Grate area/Heating surface | 1 : 73.32 |
| Firebox/Tube surface | 1 : 11.15 |
