Data from Titre Exposition universelle internationale de 1878 a Paris. Rapports du jury internationale..Volume Groupe VI - Classe 64. Rapport sur le materiel des chemins de fer. p. 50 (cnum.cnam.fr/CGI/fpage.cgi?8XAE277-11.1/54/100/312/0/0 (accessed 1 September 2005).
The jury doesn't tell us much about this little four-coupled tank except that its service area was to be on a Reseau d'Interet Local. (Locobase will consult a translator ...).
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 858 |
| Locobase ID | 7328 |
| Railroad | |
| Country | Switzerland |
| Whyte | 0-4-0T |
| Number in Class | |
| Road Numbers | |
| Gauge | Std |
| Number Built | |
| Builder | SLM |
| Year | 1878 |
| Valve Gear | Brown |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 5.91 / 1.80 |
| Engine Wheelbase (ft / m) | 5.91 / 1.80 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 5.91 / 1.80 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 27,117 / 12,300 |
| Engine Weight (lbs / kg) | 27,117 / 12,300 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 3432 / 13 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.60 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 23 / 11.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 29.50 / 750 |
| Boiler Pressure (psi / kPa) | 174 / 1200 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 8.66" x 13.78" / 220x350 |
| Tractive Effort (lbs / kg) | 5181 / 2350.06 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.23 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 107 - 1.654" / 42 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 6.04 / 1.84 |
| Firebox Area (sq ft / m2) | 28.51 / 2.65 |
| Grate Area (sq ft / m2) | 8.61 / 0.80 |
| Evaporative Heating Surface (sq ft / m2) | 329 / 30.53 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 329 / 30.53 |
| Evaporative Heating Surface/Cylinder Volume | 350.22 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1498 |
| Same as above plus superheater percentage | 1498 |
| Same as above but substitute firebox area for grate area | 4961 |
| Power L1 | 4294 |
| Power MT | 698.21 |