Sudan Railways class 110
Sudan 1911 4 produced
Among the few Atlantic express locomotives built for cape gauge were four locomotives built in 1911 by Robert Stephenson & Co. for the Sudan Government Railways. As specified by chief mechanical engineer C.G. Hodgson, the Belpaire firebox had a wide grate. The four-axle bogie tender had nearly the same weight as the locomotive and had a large capacity of water and coal for long runs at high speeds. Remarkably, there were no sanders, as the sandy climate apparently provided sufficient friction.
Technical data
General
- Built
- 1911
- Manufacturers
- Robert Stephenson & Co.
- Wheel arrangement
- 4-4-2 (Atlantic)
- Gauge
- 1,067 mm (Cape gauge)
Dimensions and weights
- Wheelbase
- 7.32 m
- Service mass
- 54.2 t
- Adhesion mass
- 31.2 t
- Rigid wheelbase
- 1.75 m
- Axle load
- 15.7 t
- Water capacity
- 20,797 l
- Fuel capacity
- 9.7 t (coal)
Boiler
- Grate area
- 2.299 m²
- Firebox surface
- 10.405 m²
- Tube heating surface
- 130.622 m²
- Evaporative heating surface
- 141.027 m²
- Total heating surface
- 141.0 m²
Power plant
- Driver diameter
- 1,588 mm
- Boiler pressure
- 12.4 bar
- Expansion type
- simple expansion
- Cylinders
- two, 457 x 660 mm
Power
- Power source
- steam
- Estimated power
- 559 kW (760 PS)
- Starting effort
- 91.7 kN
Calculated values
- Factor of adhesion
- 1 : 3.34
- Optimal speed
- 37 km/h
- Power-to-weight ratio
- 10.3 kW/t
- Heating Surface Equivalent
- 193.1 m²
- Cylinder volume/HSE
- 1 : 1,123.22
- Adhesive weight/Total
- 1 : 1.73
- Tractive force/Heating surface
- 1 : 13.58
- Grate area/Heating surface
- 1 : 61.34
- Firebox/Tube surface
- 1 : 12.55
