Data from Wiki PLM [], last accessed on 10 November 2011.
Specifications for 1884 updated version. Both engines were retired in 1905.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 18 \ 516 |
| Locobase ID | 13407 |
| Railroad | Lyon-Marseilles / PLM |
| Country | France |
| Whyte | 2-4-0 |
| Number in Class | 12 |
| Road Numbers | 18-21, 23-25 / 516-521, 563-568 |
| Gauge | Std |
| Number Built | 12 |
| Builder | Koechlin |
| Year | 1848 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 6.04 / 1.84 |
| Engine Wheelbase (ft / m) | 11.48 / 3.50 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.53 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 25,684 / 11,650 |
| Weight on Drivers (lbs / kg) | 51,368 / 23,300 |
| Engine Weight (lbs / kg) | 70,041 / 31,770 |
| 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) | 43 / 21.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 65 / 1650 |
| Boiler Pressure (psi / kPa) | 120.40 / 830 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 16.54" x 22.05" / 420x560 |
| Tractive Effort (lbs / kg) | 9498 / 4308.23 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.41 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | 74.81 / 6.95 |
| Grate Area (sq ft / m2) | 13.89 / 1.29 |
| Evaporative Heating Surface (sq ft / m2) | 1206 / 112.03 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1206 / 112.03 |
| Evaporative Heating Surface/Cylinder Volume | 219.93 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1672 |
| Same as above plus superheater percentage | 1672 |
| Same as above but substitute firebox area for grate area | 9007 |
| Power L1 | 3758 |
| Power MT | 322.57 |