Data from A Mallet, "Developpment de L'Application du System Compound", Memoirs ...Societe des Ingenieurs Civils, Annee [Juillet] 1890, Vol II (Paris: SIC, 1890). table pp. 42-43.
Mallet's own two-cylinder cross-compounding system. Locobase believes this locomotive to have been converted from an existing six-coupled simple-expansion engine.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | unknown |
| Locobase ID | 12124 |
| Railroad | Jura-Simplon |
| Country | Switzerland |
| Whyte | 0-6-0 |
| Number in Class | |
| Road Numbers | 502 |
| Gauge | Std |
| Number Built | |
| Builder | JS |
| Year | 1888 |
| Valve Gear | |
| 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) | 79,807 / 36,200 |
| Engine Weight (lbs / kg) | 79,807 / 36,200 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 44 / 22 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 51.60 / 1310 |
| Boiler Pressure (psi / kPa) | 145 / 1000 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 17.72" x 25.59" / 450x650 (1) |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 25.59" x 25.59" / 650x650 (1) |
| Tractive Effort (lbs / kg) | 12,972 / 5884.01 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 6.15 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | |
| Grate Area (sq ft / m2) | 14.63 / 1.36 |
| Evaporative Heating Surface (sq ft / m2) | 1436 / 133.50 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1436 / 133.50 |
| Evaporative Heating Surface/Cylinder Volume | 393.20 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2121 |
| Same as above plus superheater percentage | 2121 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |