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")
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 | |