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


Class Details by Steve Llanso of Sweat House Media

Class ED 1/11 (Locobase 4333)

Some data from Dr. Jonathan Smith's data tables at [] ...Works numbers were 3886-3891, 3917-3931 in 1925; , 4079-4080 in 1926, 4490-4493 in 1930.

Nairobi museum's website [] (accessed November 2002) says these saturated-steam Prairie tanks were originally purchased as switchers (shunters), but they were often seen pulling branch-line trains.

East African Railways pulled them into the 11 class and renumbered them 1101-1131 when the very similar Tanganyika Railway STs were included.


Class unknown (Locobase 20308)

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

The LM report briefly describes this trio as shunters (switchers). The photo shows a low boiler with Belpaire firebox and water tanks on the running boards that spanned all three driving axles. These tanks were fitted with an unusual valve that ensured they would overflow if the weight of the water pushed the locomotive over the nine-long-ton axle loading limit.

By 1920, the three had been converted to oil burning.

See Locobase 20309 for the 2-6-4T shunter-short haul enlargement.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassED 1/11unknown
Locobase ID4333 20308
RailroadKenya-Uganda RailwayKenya-Uganda Railway
CountryKenyaKenya
Whyte2-6-2T2-6-2T
Number in Class263
Road Numbers10-36
GaugeMetreMetre
Number Built263
BuilderVulcan FoundryNasmyth Wilson
Year19251914
Valve GearWalschaertWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)10 / 3.05
Engine Wheelbase (ft / m)24 / 7.32
Ratio of driving wheelbase to overall engine wheelbase 0.42
Overall Wheelbase (engine & tender) (ft / m)24 / 7.32
Axle Loading (Maximum Weight per Axle) (lbs / kg)20,160 / 9144
Weight on Drivers (lbs / kg)76,160 / 34,546
Engine Weight (lbs / kg)120,960 / 54,867100,520 / 45,595
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)120,960 / 54,867100,520 / 45,595
Tender Water Capacity (gals / ML)1440 / 5.451440 / 5.45
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)1240 / 46931240 / 4693
Minimum weight of rail (calculated) (lb/yd / kg/m)42 / 21
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)43 / 109243 / 1092
Boiler Pressure (psi / kPa)165 / 11.40160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)15" x 22" / 381x55915" x 22" / 381x559
Tractive Effort (lbs / kg)16,145 / 7323.2615,656 / 7101.45
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.72
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)132 / 12.27
Grate Area (sq ft / m2)12.80 / 1.1912.80 / 1.19
Evaporative Heating Surface (sq ft / m2)1026 / 95.351026 / 95.35
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1026 / 95.351026 / 95.35
Evaporative Heating Surface/Cylinder Volume228.02228.02
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation21122048
Same as above plus superheater percentage21122048
Same as above but substitute firebox area for grate area21,120
Power L14296
Power MT

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