Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 23, p. 67. Works numbers were 17882-17886 in June 1900.
Formal name for the enterprise operating the Sfax-Gafsa railway was the Compagnie des Phosphates et du Chemin de Fer de Gafsa.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 41 |
| Locobase ID | 12432 |
| Railroad | Sfax-Gafsa |
| Country | Tunisia |
| Whyte | 2-6-0 |
| Number in Class | 5 |
| Road Numbers | 41-45 |
| Gauge | Metre |
| Number Built | 5 |
| Builder | Burnham, Williams & Co |
| Year | 1900 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 9.50 / 2.90 |
| Engine Wheelbase (ft / m) | 16.67 / 5.08 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.57 |
| Overall Wheelbase (engine & tender) (ft / m) | 36.67 / 11.18 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 62,000 / 28,123 |
| Engine Weight (lbs / kg) | 72,000 / 32,659 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 2120 / 8.03 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 34 / 17 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 47.20 / 1199 |
| Boiler Pressure (psi / kPa) | 169.70 / 1170 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 20" / 381x508 |
| Tractive Effort (lbs / kg) | 13,752 / 6237.81 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.51 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 207 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 9.33 / 2.84 |
| Firebox Area (sq ft / m2) | 80.20 / 7.45 |
| Grate Area (sq ft / m2) | 13.10 / 1.22 |
| Evaporative Heating Surface (sq ft / m2) | 950 / 88.29 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 950 / 88.29 |
| Evaporative Heating Surface/Cylinder Volume | 232.24 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2223 |
| Same as above plus superheater percentage | 2223 |
| Same as above but substitute firebox area for grate area | 13,610 |
| Power L1 | 4409 |
| Power MT | 470.33 |