Born et Marensin 0-6-0 Locomotives in France
Class Details by Steve Llanso of Sweat House Media
Class 21 (Locobase 8002)
Data from [
] (accessed 5 December 2006).
This was a pretty substantial design for a secondary-line tank, showing a high boiler pressure, Serve internally finned tubes, piston valves, and a Belpaire firebox. The railway name included several extensions of CFIL lines near the coast (see Locobase 8001). The B et M later joined the CFIL under the banner of the Voies FerrTes des Landes.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 21 |
| Locobase ID | 8002 |
| Railroad | Born et Marensin |
| Country | France |
| Whyte | 0-6-0T |
| Number in Class | 4 |
| Road Numbers | 21-24 |
| Gauge | Std |
| Number Built | 4 |
| Builder | SA Franco-Belge, Raismes |
| Year | 1902 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 11.48 / 3.50 |
| Engine Wheelbase (ft / m) | 11.48 / 3.50 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 11.48 / 3.50 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 72,752 / 33,000 |
| Engine Weight (lbs / kg) | 72,752 / 33,000 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| 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) | 40 / 20 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 53.10 / 1350 |
| Boiler Pressure (psi / kPa) | 217.60 / 1500 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 13.58" x 17.72" / 345x450 (1) |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 20.47" x 17.72" / 520x450 (1) |
| Tractive Effort (lbs / kg) | 7904 / 3585.20 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 9.20 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 67 - 2.7" / |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | |
| Grate Area (sq ft / m2) | 10.76 / 1 |
| Evaporative Heating Surface (sq ft / m2) | 812 / 75.44 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 812 / 75.44 |
| Evaporative Heating Surface/Cylinder Volume | 546.70 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2341 |
| Same as above plus superheater percentage | 2341 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |