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 BT (Locobase 20020)
Data from "Metre Gauge Locomotive, Algerian State Railways," The Locomotive, Volume XXVI [26], No. 331 (15 March 1920), p. 45. Works numbers were 3235-3236 in 1919
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 Middle Run Media | ||
|---|---|---|
| Class | 140 | BT |
| Locobase ID | 15500 | 20020 |
| Railroad | Algerian State | Algerian State |
| Country | Algeria | Algeria |
| Whyte | 2-8-0 | 2-8-0 |
| Number in Class | 2 | |
| Road Numbers | BT 33-BT 34 | |
| Gauge | 105 cm | Metre |
| Number Built | 2 | |
| Builder | SACM | Hawthorn Leslie |
| Year | 1925 | 1919 |
| Valve Gear | Walschaert | Walschaert |
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | 13.78 / 4.20 | 13.78 / 4.20 |
| Engine Wheelbase (ft / m) | 20.21 / 6.16 | 20.21 / 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 / 47,000 | 77,661 / 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 / 1060 | 38 / 965 |
| Boiler Pressure (psi / kPa) | 174 / 1200 | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 16.54" x 23.62" / 420x600 | 16" x 20" / 406x508 |
| Tractive Effort (lbs / kg) | 22,918 / 10395.44 | 20,615 / 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 / 2.50 | 15 / 1.39 |
| Evaporative Heating Surface (sq ft / m2) | 1185 / 110.10 | 906 / 84.17 |
| Superheating Surface (sq ft / m2) | 549 / 51 | |
| Combined Heating Surface (sq ft / m2) | 1734 / 161.10 | 906 / 84.17 |
| Evaporative Heating Surface/Cylinder Volume | 201.74 | 194.66 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 4682 | 2700 |
| Same as above plus superheater percentage | 6181 | 2700 |
| Same as above but substitute firebox area for grate area | 24,723 | |
| Power L1 | 13,720 | |
| Power MT | 1372.00 | |