Alsace-Lorraine 2-10-2 Locomotives in France
Class Details by Steve Llanso of Sweat House Media
Class G16 / 151A (Locobase 13351)
Data from "Locomotives Type 151A.A & L (G16)" supplied by "papyglob" on 20 July 2011 to the Les Trains de l'Histoire blog at [
], last accessed 2 November 2011.
Perhaps aspiring to the same impressive levels of tractive effort as the 151As of the PLM (Locobase 2503), the two engines of the Alsace-Lorraine came a few years later and had three large simple-expansion cylinders and smaller drivers. The firebox had a combustion chamber and a CAIP feedwater heater, ACIF water-treatment system, and Kylchap double-chimney were fitted. The rear bissel truck held a booster that assisted starting effort until the locomotive had reached 30 km/h (18.6 mph).
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | G16 / 151A |
| Locobase ID | 13351 |
| Railroad | Alsace-Lorraine |
| Country | France |
| Whyte | 2-10-2 |
| Number in Class | 2 |
| Road Numbers | 5901-5902 |
| Gauge | Std |
| Number Built | 2 |
| Builder | SACM |
| Year | 1936 |
| Valve Gear | Caprotti |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 21.39 / 6.52 |
| Engine Wheelbase (ft / m) | 39.90 / 12.16 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.54 |
| Overall Wheelbase (engine & tender) (ft / m) | 70.54 / 21.50 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 44,092 / 20,000 |
| Weight on Drivers (lbs / kg) | 220,462 / 100,000 |
| Engine Weight (lbs / kg) | 295,419 / 134,000 |
| Tender Loaded Weight (lbs / kg) | 139,993 / 63,500 |
| Total Engine and Tender Weight (lbs / kg) | 435,412 / 197,500 |
| Tender Water Capacity (gals / ML) | 6600 / 25 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 7.70 / 7 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 73 / 36.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 59.10 / 1500 |
| Boiler Pressure (psi / kPa) | 290.10 / 2000 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 22.64" x 28.35" / 575x720 (3) |
| Tractive Effort (lbs / kg) | 90,944 / 41251.55 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 2.42 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 138 - 2.165" / 55 |
| Flues (number - dia) (in / mm) | 35 - 5.827" / 148 |
| Flue/Tube length (ft / m) | 19.39 / 5.91 |
| Firebox Area (sq ft / m2) | 270.39 / 25.12 |
| Grate Area (sq ft / m2) | 53.82 / 5 |
| Evaporative Heating Surface (sq ft / m2) | 2639 / 245.19 |
| Superheating Surface (sq ft / m2) | 1092 / 101.47 |
| Combined Heating Surface (sq ft / m2) | 3731 / 346.66 |
| Evaporative Heating Surface/Cylinder Volume | 133.19 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 15,613 |
| Same as above plus superheater percentage | 20,141 |
| Same as above but substitute firebox area for grate area | 101,188 |
| Power L1 | 19,929 |
| Power MT | 996.45 |