CF de Fer de Hermes a Beaumont 0-6-2 Locomotives in France
Class Details by Steve Llanso of Sweat House Media
Class unknown (Locobase 9174)
Data from M D Banderali, "Conditions d'Etablissement du Materiel Roulant de la Ligne de Hermes a Beaumont (Voie de 1m00)", Revue gTnTrale des chemins de fer, Volume 4, 2me Semestre, pp. 167-177 and A. Sampite, Les Chemins de Fer a Faible Trafic en France (Paris: Baudry et Cie, 1888), p. 49. See also [
] for a history of these Freycinet Plan railways
This railway, located in the Oise et Seine-et-Oise Departments, was the very first metre-gauge railway to be built in France. (Sampite notes that there were narrow-gauge industrial lines, but this was the first common carrier.). It connected stations on the Nord with ribbons of 20-kg/metre (40-lb/yard) iron rail that proved insufficiently resistant to lateral movements and was replaced by steel rail of the same weight. Turntables measuring 4.8 meters (15.75 feet) in diameter were located at each end of the line.
The principal difference between the meter-gauge engines shown here and the smaller types of six-coupled tanks used on standard-gauge lignes d'interet locaux was the size of the drivers. One can suppose that such a light, narrow line would be limited in top speed anyway, so maximizing tractive effort by adopting a small driver made sense.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | unknown |
| Locobase ID | 9174 |
| Railroad | CF de Fer de Hermes a Beaumont |
| Country | France |
| Whyte | 0-6-2T |
| Number in Class | 4 |
| Road Numbers | |
| Gauge | Metre |
| Number Built | 4 |
| Builder | |
| Year | 1880 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 6.79 / 2.07 |
| Engine Wheelbase (ft / m) | 13.02 / 3.97 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.52 |
| Overall Wheelbase (engine & tender) (ft / m) | 13.02 / 3.97 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 14,991 / 6800 |
| Weight on Drivers (lbs / kg) | 44,092 / 20,000 |
| Engine Weight (lbs / kg) | 52,249 / 23,700 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 52,249 / 23,700 |
| Tender Water Capacity (gals / ML) | 792 / 3 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.10 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 24 / 12 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 35.40 / 900 |
| Boiler Pressure (psi / kPa) | 120.40 / 830 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 13.78" x 18.11" / 350x460 |
| Tractive Effort (lbs / kg) | 9942 / 4509.62 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.43 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 123 - 1.614" / 41 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 10.40 / 3.17 |
| Firebox Area (sq ft / m2) | 43.06 / 4 |
| Grate Area (sq ft / m2) | 10.76 / 1 |
| Evaporative Heating Surface (sq ft / m2) | 584 / 54.22 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 584 / 54.22 |
| Evaporative Heating Surface/Cylinder Volume | 186.82 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1296 |
| Same as above plus superheater percentage | 1296 |
| Same as above but substitute firebox area for grate area | 5184 |
| Power L1 | 1816 |
| Power MT | 272.40 |