Egyptian State 2-8-0 Locomotives in Egypt


Class Details by Steve Llanso of Sweat House Media

Class Class 11 (Locobase 10279)

Data from "New Goods Engine, Egyptian State Railways," The Locomotive Magazine, Volume VIII (21 Feb 1903), p. 133. See also "Competition of American and English Locomotives in Egypt", Railway and Locomotive Engineering, Volume 14, No 8 (August 1901), p.341; "Egyptian Experimental Locomotives", Engineer, Volume 93 (7 February 1902), pp. 137-138.the extended series "The Egyptian Government Railways and Locomotives" beginning on 20 June 1903, pp. 430-432;

The ESR's F H Trevithick was a highly respected locomotive superintendent from a well-known locomotive family. His perception of the need for more power led to his design and purchase of this powerful class. The Belpaire firebox, low running board, outside cylinders with tail rods created a burly look.

Trevithick chose to purchase one 2-8-0 from Dubs and one from the American company Brooks Locomotive Works of Dunkirk, NY.


Class Class 12 (Locobase 10347)

Data from "Consolidation Locomotive, Egyptian State Ry," The Locomotive Magazine, Vol VIII, No 110 (27 June 1903), p. 444 . See also the extended series "The Egyptian Government Railways and Locomotives" beginning on 20 June 1903, pp. 430-432; and "Egyptian Experimental Locomotives", Engineer, Volume 93 (7 February 1902), pp. 137-138. Works number was 3518 in May 1900.

Compared to the Dubs engines that arrived in Egypt in the same year (Locobase 10279), this design was just a bit smaller. The Belpaire firebox was noticeable as was the long main rod that reached to the third coupled axle. 21.7 sq ft (2 sq m) of the firebox heating surface came from arch tubes.


Class unknown (Locobase 8581)

Data from [], a reprint of the Vulcan magazine last accessed 14 July 2007.

The article describes these as being very similar to those of the War Department then operating in Egypt and a comparison of the data shows that they were nearly identical. The Belpaire firebox was fitted with a single Nicholson thermic syphon.

NB: Tube length is an estimate based on the calculation of tube surface area by subtracting reported firebox heating surface from reported total evaporative heating surface

Principal Dimensions by Steve Llanso of Sweat House Media

ClassClass 11Class 12unknown
Locobase ID10279 10347 8581
RailroadEgyptian StateEgyptian StateEgyptian State
CountryEgyptEgyptEgypt
Whyte2-8-02-8-02-8-0
Number in Class120
Road Numbers701700/101/16
GaugeStdStdStd
Number Built120
BuilderDubs & CoBrooksVulcan Foundry
Year190019001952
Valve GearStephensonStephensonWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)16.42 / 515.50 / 4.7217.25 / 5.26
Engine Wheelbase (ft / m)24.92 / 7.6024.1725.92 / 7.90
Ratio of driving wheelbase to overall engine wheelbase 0.66 0.64 0.67
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)35,280 / 16,003
Weight on Drivers (lbs / kg)132,384 / 60,048129,920 / 58,931145,600 / 66,043
Engine Weight (lbs / kg)145,824 / 66,145148,960 / 67,567169,344 / 76,813
Tender Loaded Weight (lbs / kg)89,040 / 40,38889,600 / 40,642158,144 / 71,733
Total Engine and Tender Weight (lbs / kg)234,864 / 106,533238,560 / 108,209327,488 / 148,546
Tender Water Capacity (gals / ML)4800 / 18.184800 / 18.186600 / 25
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)2880 / 10,901
Minimum weight of rail (calculated) (lb/yd / kg/m)55 / 27.5054 / 2761 / 30.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)54 / 137254 / 137256.50 / 1435
Boiler Pressure (psi / kPa)180 / 12.40180 / 12.40225 / 15.50
High Pressure Cylinders (dia x stroke) (in / mm)21" x 26" / 533x66020" x 26" / 508x66018.5" x 28" / 470x711
Tractive Effort (lbs / kg)32,487 / 14735.8729,467 / 13366.0232,438 / 14713.65
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.07 4.41 4.49
Heating Ability
Tubes (number - dia) (in / mm)260 - 2" / 51202 - 1.75" / 44
Flues (number - dia) (in / mm)21 - 5.25" / 133
Flue/Tube length (ft / m)14.5812.33 / 3.76
Firebox Area (sq ft / m2)176.80 / 16.43166 / 15.43177 / 16.45
Grate Area (sq ft / m2)30 / 2.7921.70 / 2.0230 / 2.79
Evaporative Heating Surface (sq ft / m2)2201 / 204.482134 / 198.331659 / 154.18
Superheating Surface (sq ft / m2)174 / 16.17
Combined Heating Surface (sq ft / m2)2201 / 204.482134 / 198.331833 / 170.35
Evaporative Heating Surface/Cylinder Volume211.17225.73190.44
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation540039066750
Same as above plus superheater percentage540039067358
Same as above but substitute firebox area for grate area31,82429,88043,409
Power L1479550799996
Power MT319.41344.74605.42

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