Cairo-Helouan 2-4-0 Locomotives in Egypt


Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 20745)

Data from E L Ahrons, "Locomotives of the Egyptian State Railways", Locomotive Magazine, Volume XXV [25]. (15 September 1919), pp. 157-160. 1-5 produced in 1889, 6 in 1890, 9 in 1895 and 10 in 1901.

Ahrons explained that the Cairo-Helouan was a private venture incorporated to serve a robust passenger clientele heading for the Helouan spas on the east side of the Nile. These four-coupled passenger tanks did the trick for years with enough success to prompt the railway to order two more at the turn of the century.

By that time, the Egyptian Light Railways had acquired the Cairo-Helouan and the ststaer

Principal Dimensions by Steve Llanso of Middle Run Media

Class1
Locobase ID20745
RailroadCairo-Helouan (Egyptian State)
CountryEgypt
Whyte2-4-0T
Number in Class8
Road Numbers1-6, 9-10/1-8
GaugeStd
Number Built8
BuilderRobert Stephenson & Co
Year1889
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 7.50 / 2.29
Engine Wheelbase (ft / m)13.75 / 4.19
Ratio of driving wheelbase to overall engine wheelbase 0.55
Overall Wheelbase (engine & tender) (ft / m)13.75 / 4.19
Axle Loading (Maximum Weight per Axle) (lbs / kg)30,464 / 13,818
Weight on Drivers (lbs / kg)57,344 / 26,011
Engine Weight (lbs / kg)83,112 / 37,699
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)83,112 / 37,699
Tender Water Capacity (gals / ML)816 / 3.09
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 1.40 / 1
Minimum weight of rail (calculated) (lb/yd / kg/m)48 / 24
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)66 / 1676
Boiler Pressure (psi / kPa)140 / 9.70
High Pressure Cylinders (dia x stroke) (in / mm)15.25" x 22" / 387x559
Tractive Effort (lbs / kg)9225 / 4184.39
Factor of Adhesion (Weight on Drivers/Tractive Effort) 6.22
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)82 / 7.62
Grate Area (sq ft / m2)17.75 / 1.65
Evaporative Heating Surface (sq ft / m2)907 / 84.26
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)907 / 84.26
Evaporative Heating Surface/Cylinder Volume195.02
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2485
Same as above plus superheater percentage2485
Same as above but substitute firebox area for grate area11,480
Power L14361
Power MT335.32

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