CFD Vivarais Articulated Locomotives in France
Class Details by Steve Llanso of Sweat House Media
Class Vivarais (Locobase 3797)
Data from [
], supplemented by SACM diagram UG Type 172 from Elsassische Maschinenbau AG from locomotive book supplied by Dany Machi up at [] as
Diagrammes des machines SACM construites a GRAFENSTADEN (October 2007).
The HSB site includes these as a basis of comparison with the HSB engines. These Mallet tanks were actually operated in France. Fire-side diameter of the tubes was 41 mm.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Vivarais |
| Locobase ID | 3797 |
| Railroad | CFD Vivarais |
| Country | France |
| Whyte | 0-6-6-0T |
| Number in Class | 14 |
| Road Numbers | 411 |
| Gauge | Metre |
| Number Built | 14 |
| Builder | SACM |
| Year | 1901 |
| Valve Gear | Heusinger |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7.22 / 2.20 |
| Engine Wheelbase (ft / m) | 21 / 6.40 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.34 |
| Overall Wheelbase (engine & tender) (ft / m) | 21 / 6.40 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 100,013 / 45,365 |
| Engine Weight (lbs / kg) | 100,013 / 45,365 |
| 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) | 1.40 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 28 / 14 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 40.20 / 1021 |
| Boiler Pressure (psi / kPa) | 203.10 / 1400 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 12.2" x 21.69" / 310x551 |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 18.9" x 21.69" / 480x551 |
| Tractive Effort (lbs / kg) | 19,572 / 8877.72 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.11 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 152 - 1.772" / 45 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11.81 / 3.60 |
| Firebox Area (sq ft / m2) | 89.02 / 8.27 |
| Grate Area (sq ft / m2) | 15.50 / 1.44 |
| Evaporative Heating Surface (sq ft / m2) | 848 / 78.75 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 848 / 78.75 |
| Evaporative Heating Surface/Cylinder Volume | 288.96 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3148 |
| Same as above plus superheater percentage | 3148 |
| Same as above but substitute firebox area for grate area | 18,080 |
| Power L1 | 2498 |
| Power MT | 330.39 |