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. 56 (cnum.cnam.fr/CGI/fpage.cgi?8XAE277-11.1/54/100/312/0/0 (accessed 1 September 2005) table.
A contemporaneous report by Anatole Mallet simply noted that this locomotive was being tested by a Paris tramway. Its carrying axle had enough play to allow it to help the motor steer around sharp curves.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 38 |
| Locobase ID | 7401 |
| Railroad | Paris tramways |
| Country | France |
| Whyte | 0-4-2T |
| Number in Class | 1 |
| Road Numbers | |
| Gauge | Std |
| Number Built | 1 |
| Builder | SA Saint Leonard |
| Year | 1877 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | 6.40 / 1.95 |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | 6.40 / 1.95 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 14,892 / 6755 |
| Engine Weight (lbs / kg) | 19,180 / 8700 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 422 / 1.60 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.70 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 12 / 6 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 23.60 / 600 |
| Boiler Pressure (psi / kPa) | 145 / 1000 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 6.89" x 11.81" / 175x300 |
| Tractive Effort (lbs / kg) | 2928 / 1328.12 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.09 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 69 - 1.614" / 41 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 4.27 / 1.30 |
| Firebox Area (sq ft / m2) | 18.29 / 1.70 |
| Grate Area (sq ft / m2) | 3.12 / 0.29 |
| Evaporative Heating Surface (sq ft / m2) | 142 / 13.20 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 142 / 13.20 |
| Evaporative Heating Surface/Cylinder Volume | 278.63 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 452 |
| Same as above plus superheater percentage | 452 |
| Same as above but substitute firebox area for grate area | 2652 |
| Power L1 | 2613 |
| Power MT | 773.66 |