Data from diagram UG Type 180, Societe Alsacienne de Construction Mecaniques from SACM locomotive book supplied by Dany Machi up at [] as
Diagrammes des machines SACM construites a GRAFENSTADEN (October 2007). See also "Transport ferroviaire dans les Pyrénées-Orientales" in Wikipedia at [], last accessed 21 July 2025. Works number was 7511 in 1929.
Locobase believes he's finally identified the locomotive to which Diagram UG Type 180 refers. He searched through Dietmar Stresow and Jens Merte's SACM production list supplied by Allen Stanley from his extensive Rail Data Exchange collection.
Only one 0-4-4-0 Mallet tank appears as a "voie normale" (standard gauge) locomotive. Although the Pyrenees Orientales is best known for the narrow-gauge "Little Yellow Train", its network in Catalunya west of the Gulf of Lyon near the French-Spanish border included the Perpignan a Villefranche de Conflent standard-gauge line. Heading west from Perpignan beginning in 1869, it opened in several stages until it reached Prades in 1877.
When the Freycinet Plan designated Prades to Olette railway as a line of general interest in 1879, part of its remit included urging the section from Prades to Villefranche be completed as soon as possible. The private company building that line soon went bankrupt. Work on the Prades to Villefranche continued on the standard gauge with the terminus at Villefranche - Vernet-les-Bains opening in 1895.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 13 |
| Locobase ID | 15584 |
| Railroad | Pyrenees Orientales |
| Country | France |
| Whyte | 0-4-4-0T |
| Number in Class | 1 |
| Road Numbers | 13 |
| Gauge | Std |
| Number Built | 1 |
| Builder | SACM |
| Year | 1929 |
| Valve Gear | Heusinger |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 10.50 / 3.20 |
| Engine Wheelbase (ft / m) | 17.06 / 5.20 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.62 |
| Overall Wheelbase (engine & tender) (ft / m) | 17.06 / 5.20 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 91,051 / 41,300 |
| Engine Weight (lbs / kg) | 91,051 / 41,300 |
| 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) | 2.20 / 2 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 38 / 19 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 43.30 / 1100 |
| Boiler Pressure (psi / kPa) | 199.80 / 1360 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 11.02" x 21.65" / 280x550 |
| Tractive Effort (lbs / kg) | 10,312 / 4677.45 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 8.83 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 126 - 1.693" / 43 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11.48 / 3.50 |
| Firebox Area (sq ft / m2) | 61.14 / 5.68 |
| Grate Area (sq ft / m2) | 14.53 / 1.35 |
| Evaporative Heating Surface (sq ft / m2) | 710 / 65.98 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 710 / 65.98 |
| Evaporative Heating Surface/Cylinder Volume | 297.07 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2903 |
| Same as above plus superheater percentage | 2903 |
| Same as above but substitute firebox area for grate area | 12,216 |
| Power L1 | 6128 |
| Power MT | 593.51 |