Almost 50 years after it went into service, this class had very little commentary to accompany it in the diagram book. It seems a dated design for 1897 with the firebox filling the cab, the dome just ahead of the cab but over the second driven axle and a long slender first course to the boiler.
| Specifications | |
|---|---|
| Class | 8 |
| Locobase ID | 7650 |
| Railroad | Chicago & Illinois Midland |
| Whyte | 2-6-0 |
| Road Numbers | 8 |
| Gauge | Std |
| Builder | |
| Year | |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase | 15.33' |
| Engine Wheelbase | 23.50' |
| Ratio of driving wheelbase to overall engine wheebase | 0.65 |
| Overall Wheelbase (engine & tender) | |
| Axle Loading (Maximum Weight per Axle) | |
| Weight on Drivers | 92000 lbs |
| Engine Weight | 104000 lbs |
| Tender Light Weight | 87000 lbs |
| Total Engine and Tender Weight | 191000 lbs |
| Tender Water Capacity | 4500 gals |
| Tender Fuel Capacity (oil/coal) | 8 tons |
| Minimum weight per yard of rail on which locomotive could run | 51.11 lb rail |
| Geometry Relating to Tractive Effort | |
| Driver Diameter | 62" |
| Boiler Pressure | 165 psi |
| Cylinders (dia x stroke) | 19" x 24" |
| Tractive Effort | 19599 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.69 |
| Heating Ability | |
| Firebox Area | 137 sq. ft |
| Grate Area | 35 sq. ft |
| Evaporative Heating Surface | 1567 |
| Superheating Surface | |
| Combined Heating Surface | 1567 |
| Evaporative Heating Surface/Cylinder Volume | 198.96 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 5775 |
| Same as above plus superheater percentage | 5775 |
| Same as above but substitute firebox area for grate area | 22605 |
| Power L1 | 4875.26 |
| Power MT | 350.48 |
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