Sud 2-4-2 Locomotives in France
Class Details by Steve Llanso of Sweat House Media
Class unknown (Locobase 7426)
Data from Titre Exposition universelle internationale de 1889 a Paris. Rapports du jury internationale. Auteur - Volume France. Ministere du Commerce, de l'industrie. Picard, Alfred, ed. Volume Groupe VI - -Outillage et precedes des industries mecaniques. Electricite (5e partie) Classes 60 a 63. Rapport sur le materiel des chemins de fer. p. 302 ([
] (accessed 1 September 2005).
The Sud operated this double-ender on very light, 25-kg/m (50-lb/yd) rail. Its tonnage rating came to 75 tonnes up a 2.8% grade. The side water tanks rode "a little ahead" ("un peu en avant") of the drivers while the coal bunker was located behind the footplate.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | unknown |
| Locobase ID | 7426 |
| Railroad | Sud |
| Country | France |
| Whyte | 2-4-2T |
| Number in Class | |
| Road Numbers | |
| Gauge | Metre |
| Number Built | |
| Builder | SACM |
| Year | 1889 |
| Valve Gear | Allan |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | 16.08 / 4.90 |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | 16.08 / 4.90 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 44,092 / 20,000 |
| Engine Weight (lbs / kg) | 73,414 / 33,300 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 1056 / 4 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.10 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 37 / 18.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 47.20 / 1200 |
| Boiler Pressure (psi / kPa) | 145 / 1000 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 14.96" x 22.05" / 380x560 |
| Tractive Effort (lbs / kg) | 12,886 / 5845.00 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.42 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 134 - 1.772" / 45 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 12.14 / 3.70 |
| Firebox Area (sq ft / m2) | 49.71 / 4.62 |
| Grate Area (sq ft / m2) | 6.89 / 0.64 |
| Evaporative Heating Surface (sq ft / m2) | 737 / 68.50 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 737 / 68.50 |
| Evaporative Heating Surface/Cylinder Volume | 164.29 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 999 |
| Same as above plus superheater percentage | 999 |
| Same as above but substitute firebox area for grate area | 7208 |
| Power L1 | 2506 |
| Power MT | 250.60 |