Eastern Province Cement Company 4-6-2 Locomotives in South_Africa


Class Details by Steve Llanso of Sweat House Media

Class 2 (Locobase 15466)

Data from DeGolyer, Volume 79, pp. 546+; see also the Brecon Mountain Railway site at [link], last accessed 10 October 2013; and Bill Hogan, Uloliwe Volume 3, No 11 Baldwin works number was 61269 in March 1930.

The EPCC was a wholly owned subsidiary of the Pretoria Portland Cement Company that opened in 1927. It operated a very narrow gauge railway between the factory at New Brighton in Port Elizabeth and the junction with the Avontuur Railway at Chelsea Junction. Clearly the locomotive buyer for the EPCC was familiar with the South African Railways' NG10 class that had come from Eddystone in 1916 (Locobase 986) and thought it suitable for the EPCC. So the company ordered a duplicate sixteen years later.

It was obviously satisfactory for it was still in service in 1974 when it ran away and wrecked. The UK's Brecon Mountain Railway believed it could restore the locomotive and bought it after the insurance company wrote it off. Restoration, which began in 1990, was "extensive as the loco had suffered severe damage in the accident" according to the BMR's history, but the engine entered museum service in 1997 as an oil-burner. Ten years later the 2 was converted back to coal burning.

Principal Dimensions by Steve Llanso of Middle Run Media
Class2
Locobase ID15466
RailroadEastern Province Cement Company
CountrySouth Africa
Whyte4-6-2
Number in Class1
Road Numbers2
Gauge2'
Number Built1
BuilderBaldwin
Year1930
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m) 6.50 / 1.98
Engine Wheelbase (ft / m)19.62 / 5.98
Ratio of driving wheelbase to overall engine wheelbase 0.33
Overall Wheelbase (engine & tender) (ft / m)40.06
Axle Loading (Maximum Weight per Axle) (lbs / kg)15,250 / 6822
Weight on Drivers (lbs / kg)45,000 / 20,000
Engine Weight (lbs / kg)66,000 / 28,858
Tender Loaded Weight (lbs / kg)47,000 / 18,969
Total Engine and Tender Weight (lbs / kg)113,000 / 47,827
Tender Water Capacity (gals / ML)2040 / 7.73
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)5 / 5
Minimum weight of rail (calculated) (lb/yd / kg/m)25 / 12.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)36 / 914
Boiler Pressure (psi / kPa)180 / 1240
High Pressure Cylinders (dia x stroke) (in / mm)13.5" x 18" / 343x254
Tractive Effort (lbs / kg)13,942 / 6323.99
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.23
Heating Ability
Tubes (number - dia) (in / mm)119 - 1.875" / 48
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)12.53 / 3.82
Firebox Area (sq ft / m2)56 / 5.20
Grate Area (sq ft / m2)14.20 / 1.32
Evaporative Heating Surface (sq ft / m2)783 / 72.74
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)783 / 72.74
Evaporative Heating Surface/Cylinder Volume262.57
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2556
Same as above plus superheater percentage2556
Same as above but substitute firebox area for grate area10,080
Power L13850
Power MT565.85

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