Data from See also Gustav Reder (Michael Reynolds, trans), The world of steam locomotives (New York: Putnam, 1974).
The first of several dozen "Samsons" built for the Loire railroad (an amalgamation of the Saint Etienne-Lyons and Andrezieux-Roanne Railroads). Most of them were built in France by Schneider and Creusot-Loire. Papin modified Samson locomotives to place the cylinders under the boiler driving forward to turn a crank to which the connecting rods were attached. It was eventually given an additional carrying axle at the rear (making it an 0-4-2).
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Samson |
| Locobase ID | 592 |
| Railroad | Loire |
| Country | France |
| Whyte | 0-4-0 |
| Number in Class | |
| Road Numbers | |
| Gauge | Std |
| Number Built | |
| Builder | Robert Stephenson & Co |
| Year | 1832 |
| 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) | 22,046 / 10,000 |
| Engine Weight (lbs / kg) | 22,046 / 10,000 |
| 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) | 18 / 9 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 54 / 1372 |
| Boiler Pressure (psi / kPa) | 40 / 280 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 14" x 16" / 356x406 |
| Tractive Effort (lbs / kg) | 1975 / 895.85 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 11.16 |
| 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) | 10.40 / 0.97 |
| Evaporative Heating Surface (sq ft / m2) | 468 / 43.49 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 468 / 43.49 |
| Evaporative Heating Surface/Cylinder Volume | 164.17 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 416 |
| Same as above plus superheater percentage | 416 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |