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South Eastern & Chatham classes D und D1
The class D express locomotives were among Wainwright's first designs for the SE&CR. They were colorfully decorated to attract more public attention. They were built by different manufacturers, from 1905 also with Bel...
General
| Property | South Eastern & Chatham classes D und D1 round-topped firebox |
|---|---|
| Built | 1901-1907 |
| Manufacturers | Ashford, Dübs & Co., Sharp, Stewart & Co., Robert Stephenson & Co., Vulcan Foundry |
| Wheel arrangement | 4-4-0 (American) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | South Eastern & Chatham classes D und D1 round-topped firebox |
|---|---|
| Wheelbase | 6.20 m |
| Rigid wheelbase | 3.05 m |
| Total wheelbase | 13.77 m |
| Service weight | 50.8 t |
| Adhesive weight | 33.4 t |
| Axle load | 17.3 t |
| Total weight | 91.1 t |
| Water capacity | 15,002 l |
| Fuel capacity | 5.1 t (coal) |
Boiler
| Property | South Eastern & Chatham classes D und D1 round-topped firebox |
|---|---|
| Grate area | 1.886 m² |
| Firebox surface | 11.52 m² |
| Tube heating surface | 128.299 m² |
| Evaporative heating surface | 139.819 m² |
| Total heating surface | 139.8 m² |
Power plant
| Property | South Eastern & Chatham classes D und D1 round-topped firebox |
|---|---|
| Driver diameter | 2,032 mm |
| Boiler pressure | 12.1 bar |
| Expansion type | simple expansion |
| Cylinders | two, 489 x 660 mm |
Power
| Property | South Eastern & Chatham classes D und D1 round-topped firebox |
|---|---|
| Power source | steam |
| Estimated power | 559 kW (760 PS) |
| Starting effort | 79.7 kN |
Calculated values
| Property | South Eastern & Chatham classes D und D1 round-topped firebox |
|---|---|
| Factor of adhesion | 1 : 4.11 |
| Optimal speed | 43 km/h |
| Power-to-weight ratio | 11.0 kW/t |
| Heating Surface Equivalent | 197.4 m² |
| Cylinder volume/HSE | 1 : 1,256.22 |
| Adhesive weight/Total | 1 : 1.52 |
| Tractive force/Heating surface | 1 : 11.90 |
| Grate area/Heating surface | 1 : 74.14 |
| Firebox/Tube surface | 1 : 11.14 |
