Data from Daniel Kinnear Clark CE,Tramways - Their Construction and Working (London: Crosby, Lockwood & Co, 1878), pp. 388-390. See also
Pulling a single 7-ton tram car on the 4-mile run between the Bastille and the Gard de Mont Parnasse, this little engine could hit 14-15 mph, although the law allowed a maximum of 9 km/h (5 mph). The line had a ruling grade of 1 in 50 (2%) with longer inclines of 1 in 60 (1.67%) to 1 in 70 (1.42%) and the tram's average speed was 8 1/2 mph. Although the boiler was designed for 120 psi, the operator found 90 psi serviceable.
According to Clark, the tram's low speed reduced the draft and thus coke consumption, the average running about 18 1/2 lb per square foot of grate per hour
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | unknown |
| Locobase ID | 8432 |
| Railroad | SudTramways de Paris |
| Country | France |
| Whyte | 0-4-0T |
| Number in Class | 36 |
| Road Numbers | |
| Gauge | Std |
| Number Built | 36 |
| Builder | Merryweather |
| Year | 1877 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 4.58 / 1.40 |
| Engine Wheelbase (ft / m) | 4.58 / 1.40 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 4.58 / 1.40 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 8960 / 4064 |
| Engine Weight (lbs / kg) | 8960 / 4064 |
| 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) | 7 / 3.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 24 / 610 |
| Boiler Pressure (psi / kPa) | 90 / 620 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 6" x 9" / 152x229 |
| Tractive Effort (lbs / kg) | 1033 / 468.56 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 8.67 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 65 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 3 / 0.91 |
| Firebox Area (sq ft / m2) | 16 / 1.49 |
| Grate Area (sq ft / m2) | 3 / 0.28 |
| Evaporative Heating Surface (sq ft / m2) | 105 / 9.76 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 105 / 9.76 |
| Evaporative Heating Surface/Cylinder Volume | 356.51 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 270 |
| Same as above plus superheater percentage | 270 |
| Same as above but substitute firebox area for grate area | 1440 |
| Power L1 | 2261 |
| Power MT | 1112.64 |