Alsace-Lorraine 4-6-2 Locomotives in France
Class Details by Steve Llanso of Sweat House Media
Class S16 (Locobase 15510)
Data from SACM diagram UG Type. 187 from Societe Alsacienne de Constructions Mecaniques from locomotive book supplied by Dany Machi up at [
] as
Diagrammes des machines SACM construites a GRAFENSTADEN (October 2007). Works numbers were 7676-7677.
Tube diameter is the interior measurement. External tube diameter was 55 mm (2.17"), external flue diameter was 145 mm (5.71").
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | S16 |
| Locobase ID | 15510 |
| Railroad | Alsace-Lorraine |
| Country | France |
| Whyte | 4-6-2 |
| Number in Class | 2 |
| Road Numbers | 231D 1-231D 2 |
| Gauge | Std |
| Number Built | 2 |
| Builder | SACM |
| Year | 1933 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 13.62 / 4.15 |
| Engine Wheelbase (ft / m) | 36.73 / 11.20 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.37 |
| Overall Wheelbase (engine & tender) (ft / m) | 75.98 / 23.16 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 132,277 / 60,000 |
| Engine Weight (lbs / kg) | 236,776 / 107,400 |
| Tender Loaded Weight (lbs / kg) | 148,261 / 67,250 |
| Total Engine and Tender Weight (lbs / kg) | 385,037 / 174,650 |
| Tender Water Capacity (gals / ML) | 7432 / 28.15 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 10.60 / 10 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 73 / 36.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 76.80 / 1950 |
| Boiler Pressure (psi / kPa) | 290.10 / 2000 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 22.64" x 28.35" / 575x720 |
| Tractive Effort (lbs / kg) | 46,656 / 21162.83 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 2.84 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 137 - 1.969" / 50 |
| Flues (number - dia) (in / mm) | 30 - 5.512" / 140 |
| Flue/Tube length (ft / m) | 19.39 / 5.91 |
| Firebox Area (sq ft / m2) | 201.29 / 18.70 |
| Grate Area (sq ft / m2) | 48.44 / 4.50 |
| Evaporative Heating Surface (sq ft / m2) | 2408 / 223.70 |
| Superheating Surface (sq ft / m2) | 794 / 73.80 |
| Combined Heating Surface (sq ft / m2) | 3202 / 297.50 |
| Evaporative Heating Surface/Cylinder Volume | 182.29 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 14,052 |
| Same as above plus superheater percentage | 17,566 |
| Same as above but substitute firebox area for grate area | 72,993 |
| Power L1 | 29,686 |
| Power MT | 1484.30 |