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.
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 Middle Run Media | ||
---|---|---|
Class | ED 1/11 | unknown |
Locobase ID | 4333 | 20308 |
Railroad | Kenya-Uganda Railway | Kenya-Uganda Railway |
Country | Kenya | Kenya |
Whyte | 2-6-2T | 2-6-2T |
Number in Class | 26 | 3 |
Road Numbers | 10-36 | |
Gauge | Metre | Metre |
Number Built | 26 | 3 |
Builder | Vulcan Foundry | Nasmyth Wilson |
Year | 1925 | 1914 |
Valve Gear | Walschaert | Walschaert |
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 / 54,867 | 100,520 / 45,595 |
Tender Loaded Weight (lbs / kg) | ||
Total Engine and Tender Weight (lbs / kg) | ||
Tender Water Capacity (gals / ML) | 1440 / 5.45 | 1440 / 5.45 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1240 / 4693 | 1240 / 4693 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 42 / 21 | |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 43 / 1092 | 43 / 1092 |
Boiler Pressure (psi / kPa) | 165 / 1140 | 160 / 1100 |
High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 22" / 381x559 | 15" x 22" / 381x559 |
Tractive Effort (lbs / kg) | 16,145 / 7323.26 | 15,656 / 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 / 1.19 | 12.80 / 1.19 |
Evaporative Heating Surface (sq ft / m2) | 1026 / 95.35 | 1026 / 95.35 |
Superheating Surface (sq ft / m2) | ||
Combined Heating Surface (sq ft / m2) | 1026 / 95.35 | 1026 / 95.35 |
Evaporative Heating Surface/Cylinder Volume | 228.02 | 228.02 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 2112 | 2048 |
Same as above plus superheater percentage | 2112 | 2048 |
Same as above but substitute firebox area for grate area | 21,120 | |
Power L1 | 4296 | |
Power MT |