Data from diagram UG, Type 191, Societe Alsacienne de Constructions Mecaniques from locomotive book supplied by Dany Machi up at [] as
Diagrammes des machines SACM construites a GRAFENSTADEN (October 2007). See also Jacques Gandini, "Les locomotives a vapeur", Les Chemins de Fer de Maroc website at [], last accessed 14 November 2013. Works numbers were 7706-7712 and 7715-7722
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 317 |
| Locobase ID | 15615 |
| Railroad | Lung-Hai |
| Country | China |
| Whyte | 2-8-0 |
| Number in Class | 15 |
| Road Numbers | 317-331 |
| Gauge | Std |
| Number Built | 15 |
| Builder | SACM |
| Year | 1935 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 19.69 / 6 |
| Engine Wheelbase (ft / m) | 28.54 / 8.70 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.69 |
| Overall Wheelbase (engine & tender) (ft / m) | 61.02 / 18.60 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 153,882 / 69,800 |
| Engine Weight (lbs / kg) | 178,795 / 81,100 |
| Tender Loaded Weight (lbs / kg) | 138,891 / 63,000 |
| Total Engine and Tender Weight (lbs / kg) | 317,686 / 144,100 |
| Tender Water Capacity (gals / ML) | 7920 / 30 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 11 / 10 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 64 / 32 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 55.10 / 1400 |
| Boiler Pressure (psi / kPa) | 198.70 / 1370 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 23.62" x 25.98" / 600x660 |
| Tractive Effort (lbs / kg) | 44,429 / 20152.68 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.46 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 162 - 1.811" / 46 |
| Flues (number - dia) (in / mm) | 30 - 5.079" / 129 |
| Flue/Tube length (ft / m) | 15.09 / 4.60 |
| Firebox Area (sq ft / m2) | 215.28 / 20 |
| Grate Area (sq ft / m2) | 45.21 / 4.20 |
| Evaporative Heating Surface (sq ft / m2) | 1921 / 178.50 |
| Superheating Surface (sq ft / m2) | 619 / 57.50 |
| Combined Heating Surface (sq ft / m2) | 2540 / 236 |
| Evaporative Heating Surface/Cylinder Volume | 145.80 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 8983 |
| Same as above plus superheater percentage | 11,139 |
| Same as above but substitute firebox area for grate area | 53,042 |
| Power L1 | 11,867 |
| Power MT | 680.06 |