Algerian State 2-8-0 Locomotives in Algeria


Class Details by Steve Llanso of Sweat House Media

Class 140 (Locobase 15500)

Data from SACM diagram UG Type 166 from Societe Alsacienne de Constructions Mecaniques from locomotive book supplied by Dany Machi up at [] as

Diagrammes des machines SACM construites a GRAFENSTADEN (October 2007).

Tube diameter is the interior measurement. External tube diameter was 70 mm (2.76")


Class unknown (Locobase 20020)

Data from "Metre Gauge Locomotive, Algerian State Railways," The Locomotive, Volume XXVI [26], No. 331 (15 March 1920), p. 45.

The brief item in LM included the claim that the first engines of this designs gave "such satisfaction in service" that a further batch had been ordered.

Principal Dimensions by Steve Llanso of Sweat House Media

Class140unknown
Locobase ID15500 20020
RailroadAlgerian StateAlgerian State
CountryAlgeriaAlgeria
Whyte2-8-02-8-0
Number in Class
Road Numbers
Gauge105 cmMetre
Number Built
BuilderSACMHawthorn Leslie
Year19251919
Valve GearWalschaertWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)13.78 / 4.2013.78 / 4.20
Engine Wheelbase (ft / m)20.21 / 6.1620.21 / 6.16
Ratio of driving wheelbase to overall engine wheelbase 0.68 0.68
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)88,185 / 40,000
Engine Weight (lbs / kg)103,617 / 47,00077,661 / 35,226
Tender Loaded Weight (lbs / kg)60,032 / 27,230
Total Engine and Tender Weight (lbs / kg)137,693 / 62,456
Tender Water Capacity (gals / ML)2736
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)37 / 18.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)41.70 / 106038 / 965
Boiler Pressure (psi / kPa)174 / 12180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)16.54" x 23.62" / 420x60016" x 20" / 406x508
Tractive Effort (lbs / kg)22,918 / 10395.4420,615 / 9350.82
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.85
Heating Ability
Tubes (number - dia) (in / mm)122 - 2.52" / 64
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)13.78 / 4.20
Firebox Area (sq ft / m2)107.64 / 10
Grate Area (sq ft / m2)26.91 / 2.5015 / 1.39
Evaporative Heating Surface (sq ft / m2)1185 / 110.10906 / 84.17
Superheating Surface (sq ft / m2)549 / 51
Combined Heating Surface (sq ft / m2)1734 / 161.10906 / 84.17
Evaporative Heating Surface/Cylinder Volume201.74194.66
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation46822700
Same as above plus superheater percentage61812700
Same as above but substitute firebox area for grate area24,723
Power L113,720
Power MT1372.00

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