Bone-Guelma 2-10-0 Locomotives in Tunisia
Class Details by Steve Llanso of Sweat House Media
Class 221 (Locobase 14726)
Data from card number 619 "Locomotives de L'Algerie", HMP, 8 Rue de Tournon, Paris, archived at [
], supplemented by "Recent Locomotives for the Bone-Guelma Railway", Locomotive Magazine, Volume XX [20] (15 October1914), p. 226-227
Photo shows a large, tall Decapod with Belpaire firebox, straight boiler pitched high, piston valves, small dome flanked by small sandboxes
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 221 |
| Locobase ID | 14726 |
| Railroad | Bone-Guelma (et Prolongemonts) |
| Country | Tunisia |
| Whyte | 2-10-0 |
| Number in Class | 15 |
| Road Numbers | 221-2354 |
| Gauge | Std |
| Number Built | 15 |
| Builder | SACM |
| Year | 1910 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 144,623 / 65,600 |
| Engine Weight (lbs / kg) | 161,599 / 73,300 |
| Tender Loaded Weight (lbs / kg) | 75,178 / 34,100 |
| Total Engine and Tender Weight (lbs / kg) | 236,777 / 107,400 |
| Tender Water Capacity (gals / ML) | 3168 / 12 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 6.60 / 6 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 48 / 24 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 55.10 / 1400 |
| Boiler Pressure (psi / kPa) | 169.70 / 1170 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 24.41" x 25.59" / 620x650 |
| Tractive Effort (lbs / kg) | 39,917 / 18106.07 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.62 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 152 - 1.772" / 45 |
| Flues (number - dia) (in / mm) | 24 - 5" / 127 |
| Flue/Tube length (ft / m) | 13.78 / 4.20 |
| Firebox Area (sq ft / m2) | 170.07 / 15.80 |
| Grate Area (sq ft / m2) | 29.71 / 2.76 |
| Evaporative Heating Surface (sq ft / m2) | 1553 / 144.32 |
| Superheating Surface (sq ft / m2) | 442 / 41.08 |
| Combined Heating Surface (sq ft / m2) | 1995 / 185.40 |
| Evaporative Heating Surface/Cylinder Volume | 112.04 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 5042 |
| Same as above plus superheater percentage | 6151 |
| Same as above but substitute firebox area for grate area | 35,210 |
| Power L1 | 7175 |
| Power MT | 546.88 |