This Mogul duo worked under a surprising low boiler pressure for the 1890s and like many of the KCS engines had a small firebox.Note the widespread drivers, a result of dropping the firebox between the last two axles.
It was a pattern on the KCS in the 1880s and 1890s -- small fireboxes. Given any group of locomotives with the same wheel arrangement in the same period, a KCS engine would almost always have among the highest ratios of heating surface to grate and the smallest ratio of direct heating surface to total heating surface. And so it was for these Baldwin Moguls.
| Specifications | ||
|---|---|---|
| Class | C | C-1 |
| Locobase ID | 6833 | 6837 |
| Railroad | Kansas City, Nevada & Gulf (KCS) | Kansas City, Pittsburgh & Gulf (KCS) |
| Whyte | 2-6-0 | 2-6-0 |
| Road Numbers | 240-241 | 300-305 |
| Gauge | Std | Std |
| Builder | Burnham, Williams & Co | Burnham, Williams & Co |
| Year | 1892 | 1895 |
| Valve Gear | Stephenson | Stephenson |
| Locomotive Length and Weight | ||
| Driver Wheelbase | 15.17' | 15.42' |
| Engine Wheelbase | 22.96' | 23.50' |
| Ratio of driving wheelbase to overall engine wheebase | 0.66 | 0.66 |
| Overall Wheelbase (engine & tender) | 45.87' | 48.21' |
| Axle Loading (Maximum Weight per Axle) | ||
| Weight on Drivers | 80000 lbs | 100000 lbs |
| Engine Weight | 96000 lbs | 115000 lbs |
| Tender Light Weight | 80000 lbs | 80000 lbs |
| Total Engine and Tender Weight | 176000 lbs | 195000 lbs |
| Tender Water Capacity | 4000 gals | 4000 gals |
| Tender Fuel Capacity (oil/coal) | 9 tons | |
| Minimum weight per yard of rail on which locomotive could run | 44.44 lb rail | 55.56 lb rail |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter | 55" | 55" |
| Boiler Pressure | 130 psi | 174 psi |
| Cylinders (dia x stroke) | 19" x 24" | 19" x 24" |
| Tractive Effort | 17407 lbs | 23298 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.60 | 4.29 |
| Heating Ability | ||
| Firebox Area | 108 sq. ft | 131 sq. ft |
| Grate Area | 17.10 sq. ft | 17.60 sq. ft |
| Evaporative Heating Surface | 1436 | 1612 |
| Superheating Surface | ||
| Combined Heating Surface | 1436 | 1612 |
| Evaporative Heating Surface/Cylinder Volume | 182.33 | 204.68 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 2223 | 3062.40 |
| Same as above plus superheater percentage | 2223 | 3062.40 |
| Same as above but substitute firebox area for grate area | 14040 | 22794 |
| Power L1 | 2989.83 | 4591.11 |
| Power MT | 247.18 | 303.65 |
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