Kenya-Uganda Railway 2-6-4 Locomotives in Kenya

Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 20309)

Data from "New Engines for the Uganda Railway", Locomotive Magazine, Volume XX [20] (15 July 1914), p. 189-190..

Although the LM report doesn't specifically say, this quintet design is the 2-6-2T described in Locobase 20308, but with an enlarged bunker and water capacity for short-haul freight away from the yard.

A photo shows the low boiler with Belpaire firebox and water tanks on the running boards that spanned all three driving axles. At the back of these engines and supported by a four-wheel bogie was another 400 Imperial gallon (480 US gallons) tank under a larger coal bunker.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID20309
RailroadKenya-Uganda Railway
Number in Class5
Road Numbers
Number Built5
BuilderNasmyth Wilson
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)10 / 3.05
Engine Wheelbase (ft / m)28.71 / 8.75
Ratio of driving wheelbase to overall engine wheelbase 0.35
Overall Wheelbase (engine & tender) (ft / m)28.71 / 8.75
Axle Loading (Maximum Weight per Axle) (lbs / kg)20,160 / 9144
Weight on Drivers (lbs / kg)
Engine Weight (lbs / kg)117,264 / 53,190
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)117,264 / 53,190
Tender Water Capacity (gals / ML)1440 / 5.45
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) / 5
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)43 / 1092
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)15" x 22" / 381x559
Tractive Effort (lbs / kg)15,656 / 7101.45
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)211 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 9.25 / 2.82
Firebox Area (sq ft / m2)130 / 12.08
Grate Area (sq ft / m2)12.80 / 1.19
Evaporative Heating Surface (sq ft / m2)1024 / 95.13
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1024 / 95.13
Evaporative Heating Surface/Cylinder Volume227.57
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2048
Same as above plus superheater percentage2048
Same as above but substitute firebox area for grate area20,800
Power L14266
Power MT

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