| Specifications | |
|---|---|
| Class | MT-73 |
| Locobase ID | 211 |
| Railroad | Missouri Pacific (MP) |
| Whyte | 4-8-2 |
| Road Numbers | 5335-5344 |
| Gauge | Std |
| Builder | Alco |
| Year | 1927 |
| Valve Gear | Baker |
| Locomotive Length and Weight | |
| Driver Wheelbase | 19.58' |
| Engine Wheelbase | 42.17' |
| Ratio of driving wheelbase to overall engine wheebase | 0.46 |
| Overall Wheelbase (engine & tender) | 88.37' |
| Axle Loading (Maximum Weight per Axle) | |
| Weight on Drivers | 267500 lbs |
| Engine Weight | 396000 lbs |
| Tender Light Weight | 320000 lbs |
| Total Engine and Tender Weight | 716000 lbs |
| Tender Water Capacity | 14000 gals |
| Tender Fuel Capacity (oil/coal) | 18 tons |
| Minimum weight per yard of rail on which locomotive could run | 111.46 lb rail |
| Geometry Relating to Tractive Effort | |
| Driver Diameter | 73" |
| Boiler Pressure | 250 psi |
| Cylinders (dia x stroke) | 27" x 30" |
| Tractive Effort | 63663 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.20 |
| Heating Ability | |
| Firebox Area | 451 sq. ft |
| Grate Area | 84.30 sq. ft |
| Evaporative Heating Surface | 5092 |
| Superheating Surface | 1352 |
| Combined Heating Surface | 6444 |
| Evaporative Heating Surface/Cylinder Volume | 256.13 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 21075 |
| Same as above plus superheater percentage | 25496.69 |
| Same as above but substitute firebox area for grate area | 136405.80 |
| Power L1 | 29857.62 |
| Power MT | 984.29 |
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