| Specifications | |
|---|---|
| Class | 3' gauge |
| Locobase ID | 967 |
| Railroad | United of Yucatan Rwy |
| Whyte | 4-4-0 |
| Road Numbers | 81 |
| Gauge | 3' |
| Builder | Baldwin |
| Year | 1945 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase | |
| Engine Wheelbase | |
| Ratio of driving wheelbase to overall engine wheebase | |
| Overall Wheelbase (engine & tender) | |
| Axle Loading (Maximum Weight per Axle) | |
| Weight on Drivers | 43000 lbs |
| Engine Weight | 65000 lbs |
| Tender Light Weight | 167000 lbs |
| Total Engine and Tender Weight | 232000 lbs |
| Tender Water Capacity | |
| Tender Fuel Capacity (oil/coal) | |
| Minimum weight per yard of rail on which locomotive could run | 36 lb rail |
| Geometry Relating to Tractive Effort | |
| Driver Diameter | 46" |
| Boiler Pressure | 160 psi |
| Cylinders (dia x stroke) | 13" x 18" |
| Tractive Effort | 8994 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.78 |
| Heating Ability | |
| Firebox Area | 67 sq. ft |
| Grate Area | 9.70 sq. ft |
| Evaporative Heating Surface | 670 |
| Superheating Surface | |
| Combined Heating Surface | 670 |
| Evaporative Heating Surface/Cylinder Volume | 242.29 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1552 |
| Same as above plus superheater percentage | 1552 |
| Same as above but substitute firebox area for grate area | 10720 |
| Power L1 | 4458 |
| Power MT | 457.13 |
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