This single Consolidation was originally ordered by the Buffalo & Susquehanna, but that railroad couldn't pay for it. So the C & IM bought it instead. The design sported 12" piston valves and the firebox heating surface included 26 sq ft of arch tubes.
The C & IM had been established only 5 years earlier as a joint venture between Chicago Edison and Commonwealth Electric (both controlled by utilities magnate Samuel Insull) and the Peabody Coal Company.
| Specifications | |
|---|---|
| Class | C-1 |
| Locobase ID | 7652 |
| Railroad | Chicago & Illinois Midland |
| Whyte | 2-8-0 |
| Road Numbers | 510 |
| Gauge | Std |
| Builder | Alco-Brooks |
| Year | 1910 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase | 14.25' |
| Engine Wheelbase | 22.08' |
| Ratio of driving wheelbase to overall engine wheebase | 0.65 |
| Overall Wheelbase (engine & tender) | 54.20' |
| Axle Loading (Maximum Weight per Axle) | |
| Weight on Drivers | 170520 lbs |
| Engine Weight | 194280 lbs |
| Tender Light Weight | 125740 lbs |
| Total Engine and Tender Weight | 320020 lbs |
| Tender Water Capacity | 6200 gals |
| Tender Fuel Capacity (oil/coal) | 12 tons |
| Minimum weight per yard of rail on which locomotive could run | 71.05 lb rail |
| Geometry Relating to Tractive Effort | |
| Driver Diameter | 51" |
| Boiler Pressure | 190 psi |
| Cylinders (dia x stroke) | 21" x 28" |
| Tractive Effort | 39102 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.36 |
| Heating Ability | |
| Firebox Area | 205 sq. ft |
| Grate Area | 54.29 sq. ft |
| Evaporative Heating Surface | 2095 |
| Superheating Surface | 450 |
| Combined Heating Surface | 2545 |
| Evaporative Heating Surface/Cylinder Volume | 186.64 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 10315.10 |
| Same as above plus superheater percentage | 12138.99 |
| Same as above but substitute firebox area for grate area | 45837.03 |
| Power L1 | 10316.18 |
| Power MT | 533.50 |
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