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Kenya-Uganda Railway classes EC, EC1 and EC2
The unsatisfactory results of the unreliable and high-maintenance M-class Mallets led the Kenya-Uganda Railway to switch to Garratt-type locomotives. They weighed over 120 tons loaded, had a Belpaire firebox and were ...
| Kenya-Uganda Railway classes EC, EC1 and EC2Remove | |
|---|---|
| Variant | |
| Built | 1931 |
| Manufacturers | North British |
| Wheel arrangement | (2D1)(1D2) t ga |
| Gauge | 1000 mm |
| Length | |
| Service mass | 144380 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Kenya-Uganda Railway classes EC, EC1 and EC2Remove |
|---|---|
| Built | 1931 |
| Manufacturers | North British |
| Wheel arrangement | 4-8-2+2-8-4T (Double Mountain (Garratt)) |
| Gauge | 1,000 mm |
Dimensions and weights
| Property | Kenya-Uganda Railway classes EC, EC1 and EC2Remove |
|---|---|
| Service mass | 144.4 t |
| Adhesion mass | 89.4 t |
| Water capacity | 23,867 l |
| Fuel capacity | 10,796 l (oil) |
Boiler
| Property | Kenya-Uganda Railway classes EC, EC1 and EC2Remove |
|---|---|
| Grate area | 4.051 m² |
| Firebox surface | 18.023 m² |
| Tube heating surface | 172.428 m² |
| Evaporative heating surface | 190.451 m² |
| Superheater surface | 35.303 m² |
| Total heating surface | 225.8 m² |
Power plant
| Property | Kenya-Uganda Railway classes EC, EC1 and EC2Remove |
|---|---|
| Driver diameter | 1,092 mm |
| Boiler pressure | 12.4 bar |
| Expansion type | simple expansion |
| Cylinders | four, 419 x 559 mm |
Power
| Property | Kenya-Uganda Railway classes EC, EC1 and EC2Remove |
|---|---|
| Power source | steam |
| Estimated power | 1,044 kW (1,419 PS) |
| Starting effort | 189.6 kN |
Calculated values
| Property | Kenya-Uganda Railway classes EC, EC1 and EC2Remove |
|---|---|
| Factor of adhesion | 1 : 4.63 |
| Optimal speed | 34 km/h |
| Power-to-weight ratio | 7.2 kW/t |
| Heating Surface Equivalent | 351.2 m² |
| Cylinder volume/HSE | 1 : 878.05 |
| Adhesive weight/Total | 1 : 1.61 |
| Tractive force/Heating surface | 1 : 17.54 |
| Grate area/Heating surface | 1 : 55.73 |
| Firebox/Tube surface | 1 : 9.57 |
| Total/Superheater | 1 : 5.39 |
