Similar to USRA Light Mikado design and virtually identical to C&IM F-4 class (Locobase 8).
The AC&Y built this class over a surprisingly long time. After taking 2 in 1926, the railroad received 2 more in 1928 as class R-1; these weighed 313,800 lb. Thirteen years later Lima delivered two more as Class R-2 (319,800 lb) with one more coming in 1944 (313,800 lb). The first two were scrapped in 1948 & 1946, respectively. The others carried on until the 1950s.
| Specifications | |
|---|---|
| Class | R-1 |
| Locobase ID | 1 |
| Railroad | Akron, Canton, & Youngstown |
| Whyte | 2-8-2 |
| Road Numbers | 400-406 |
| Gauge | Std |
| Builder | Lima |
| Year | 1926 |
| Valve Gear | Baker |
| Locomotive Length and Weight | |
| Driver Wheelbase | 16.75' |
| Engine Wheelbase | 36.08' |
| Ratio of driving wheelbase to overall engine wheebase | 0.46 |
| Overall Wheelbase (engine & tender) | 70.88' |
| Axle Loading (Maximum Weight per Axle) | |
| Weight on Drivers | 223000 lbs |
| Engine Weight | 313800 lbs |
| Tender Light Weight | 182200 lbs |
| Total Engine and Tender Weight | 496000 lbs |
| Tender Water Capacity | 9500 gals |
| Tender Fuel Capacity (oil/coal) | 12 tons |
| Minimum weight per yard of rail on which locomotive could run | 92.92 lb rail |
| Geometry Relating to Tractive Effort | |
| Driver Diameter | 63" |
| Boiler Pressure | 200 psi |
| Cylinders (dia x stroke) | 26" x 30" |
| Tractive Effort | 54724 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.07 |
| Heating Ability | |
| Firebox Area | 338.30 sq. ft |
| Grate Area | 66.70 sq. ft |
| Evaporative Heating Surface | 3502 |
| Superheating Surface | 940 |
| Combined Heating Surface | 4442 |
| Evaporative Heating Surface/Cylinder Volume | 189.96 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 13340 |
| Same as above plus superheater percentage | 16162.96 |
| Same as above but substitute firebox area for grate area | 81977.96 |
| Power L1 | 15553.18 |
| Power MT | 615.05 |
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