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Kenya-Uganda Railway class EC3
In 1939, the Kenya-Uganda Railway was the first one to order Garratts in the “Double Northern” layout, i.e. with the wheel arrangement 4-8-4+4-8-4. With their weight now being distributed over more axles, a more power...
| Kenya-Uganda Railway class EC3Remove | |
|---|---|
| Variant | Standard |
| Built | 1939-1940 |
| Manufacturers | Beyer, Peacock & Co. |
| Wheel arrangement | (2D2)(2D2) t ga |
| Gauge | 1000 mm |
| Length | |
| Service mass | 188985 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Kenya-Uganda Railway class EC3 Standard Remove |
|---|---|
| Built | 1939-1940 |
| Manufacturers | Beyer, Peacock & Co. |
| Wheel arrangement | 4-8-4+4-8-4T (Double Northern (Garratt)) |
| Gauge | 1,000 mm |
Dimensions and weights
| Property | Kenya-Uganda Railway class EC3 Standard Remove |
|---|---|
| Total wheelbase | 21.46 m |
| Empty mass | 149.1 t |
| Service mass | 189 t |
| Adhesion mass | 95.5 t |
| Rigid wheelbase | 4.57 m |
| Axle load | 11.9 t |
| Water capacity | 27,278 l |
| Fuel capacity | 12.2 t (coal) |
Boiler
| Property | Kenya-Uganda Railway class EC3 Standard Remove |
|---|---|
| Grate area | 4.506 m² |
| Firebox surface | 23.319 m² |
| Tube heating surface | 187.2 m² |
| Evaporative heating surface | 210.518 m² |
| Superheater surface | 44.965 m² |
| Total heating surface | 255.5 m² |
Power plant
| Property | Kenya-Uganda Railway class EC3 Standard Remove |
|---|---|
| Driver diameter | 1,372 mm |
| Boiler pressure | 15.2 bar |
| Expansion type | simple expansion |
| Cylinders | four, 406 x 660 mm |
Power
| Property | Kenya-Uganda Railway class EC3 Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 1,380 kW (1,876 PS) |
| Starting effort | 205.1 kN |
Calculated values
| Property | Kenya-Uganda Railway class EC3 Standard Remove |
|---|---|
| Factor of adhesion | 1 : 4.57 |
| Optimal speed | 42 km/h |
| Power-to-weight ratio | 7.3 kW/t |
| Heating Surface Equivalent | 417.0 m² |
| Cylinder volume/HSE | 1 : 821.64 |
| Adhesive weight/Total | 1 : 1.98 |
| Tractive force/Heating surface | 1 : 16.76 |
| Grate area/Heating surface | 1 : 56.70 |
| Firebox/Tube surface | 1 : 8.03 |
| Total/Superheater | 1 : 4.68 |
