These were substantial Consolidations when they went into service on the IM. That railroad was taken over by the state-run Nacional de Mexico in 1911. They were never superheated or otherwise substantially modified. One was scrapped in July 1946; all of the others retired in September 1953.
| Specifications | |
|---|---|
| Class | G-36 |
| Locobase ID | 9487 |
| Railroad | Mexican International |
| Whyte | 2-8-0 |
| Road Numbers | 100-105 / 710-14 / 1440-3 |
| Gauge | Std |
| Builder | Burnham, Williams & Co |
| Year | 1903 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase | |
| Engine Wheelbase | |
| Ratio of driving wheelbase to overall engine wheebase | |
| Overall Wheelbase (engine & tender) | 304' |
| Axle Loading (Maximum Weight per Axle) | |
| Weight on Drivers | 169500 lbs |
| Engine Weight | 185750 lbs |
| Tender Light Weight | 150250 lbs |
| Total Engine and Tender Weight | 336000 lbs |
| Tender Water Capacity | 8000 gals |
| Tender Fuel Capacity (oil/coal) | 2500 gals |
| Minimum weight per yard of rail on which locomotive could run | 70.62 lb rail |
| Geometry Relating to Tractive Effort | |
| Driver Diameter | 57" |
| Boiler Pressure | 200 psi |
| Cylinders (dia x stroke) | 22" x 28" |
| Tractive Effort | 40418 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.19 |
| Heating Ability | |
| Firebox Area | 163 sq. ft |
| Grate Area | 54.30 sq. ft |
| Evaporative Heating Surface | 3053 |
| Superheating Surface | |
| Combined Heating Surface | 3053 |
| Evaporative Heating Surface/Cylinder Volume | 247.83 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 10860 |
| Same as above plus superheater percentage | 10860 |
| Same as above but substitute firebox area for grate area | 32600 |
| Power L1 | 5965.69 |
| Power MT | 310.37 |
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