Decauville 0-4-0 Locomotives in France
Class Details by Steve Llanso of Sweat House Media
Class Progres (Locobase 5100)
Data from perso.chanteraines.mageo.com/lvdc0017/carnet2.htm (August 2002), updated to [
] (21 July 2005).. Obviously designed for light-rail industrial use, this little teakettle could negotiate 15-meter (45-ft) curves.
A table from this site (which drew it from the Decauville catalogue) shows the speed-tonnage tradeoffs:
Metric tons at 8 km/h (5 mph), 81% of nominal BP and indicated tractive effort of 1,226 kg (2,703 lb):
Grade
0 5 10 15 20 25 30 35 40
104 66.5 48.56 37.5 29.5 25 20.5 18 15.5
Metric tons at 12 km/h (7.5 mph), 48% of nominal BP and indicated tractive effort of 1,008 kg (2,222 lb):
Grade
0 5 10 15 20 25 30 35 40
84 53 38.5 29.5 24 19.5 16.5 11 11.5
Metric tons at 17 km/h (10.6 mph), 38% of nominal BP and indicated tractive effort of 879 kg (1,938 lb):
Grade
0 5 10 15 20 25 30 35 40
72 46 33.5 25 19.5 16 13.5 11 9.5
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Progres |
| Locobase ID | 5100 |
| Railroad | Decauville |
| Country | France |
| Whyte | 0-4-0T |
| Number in Class | |
| Road Numbers | |
| Gauge | 60 cm |
| Number Built | |
| Builder | Decauville |
| Year | 1910 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 3.48 / 1.06 |
| Engine Wheelbase (ft / m) | 3.48 / 1.06 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 14,881 / 6750 |
| Engine Weight (lbs / kg) | 14,881 / 6750 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 14,881 / 6750 |
| Tender Water Capacity (gals / ML) | 264 / 1 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.30 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 12 / 6 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 23.60 / 599 |
| Boiler Pressure (psi / kPa) | 181.30 / 1250 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 6.89" x 9.84" / 175x250 |
| Tractive Effort (lbs / kg) | 3050 / 1383.46 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.88 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 63 - 1.57" / 40 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 4.81 / 1.47 |
| Firebox Area (sq ft / m2) | 16.79 / 1.56 |
| Grate Area (sq ft / m2) | 3.23 / 0.30 |
| Evaporative Heating Surface (sq ft / m2) | 129 / 12 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 129 / 12 |
| Evaporative Heating Surface/Cylinder Volume | 303.79 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 586 |
| Same as above plus superheater percentage | 586 |
| Same as above but substitute firebox area for grate area | 3044 |
| Power L1 | 3576 |
| Power MT | 1059.57 |