Built by Alco's Brooks works for the Wabash (see separate entry), but were the property of the Chicago & Eastern Illinois when the C&O bought them during World War II. These were the heaviest of the C&O's Santa Fes; they had the highest factor of adhesion and the largest boilers.
These were produced for the Lehigh Valley as R-1s in November 1919, but that railroad quickly sold them to the Hocking Valley in April 1920 because their small drivers did not match the LV's faster-freight requirements.
Ten of these carried over to the C&O when the latter acquired the HV in 1930; the other 6 went to the Pere Marquette. At some point, tube heating surface decreased after 10 tubes were deleted. As shown, the firebox heating surface includes 4 arch tubes comprising 29 sq ft. 14" piston valves had 8 1/4" maximum travel.
Cylinder horsepower calclulated to be 3,102. Elesco feedwater heater on 2952 only.
The last of these was retired in 1952.
| Specifications | ||
|---|---|---|
| Class | B-3 | F-1 / B-1 |
| Locobase ID | 475 | 477 |
| Railroad | Chesapeake & Ohio (C & O) | Hocking Valley (C & O) |
| Whyte | 2-10-2 | 2-10-2 |
| Road Numbers | 4000-4001 | 130-145 / 2950-2961 |
| Gauge | Std | Std |
| Builder | Alco-Brooks | Baldwin |
| Year | 1917 | 1919 |
| Valve Gear | Walschaert | Walschaert |
| Locomotive Length and Weight | ||
| Driver Wheelbase | 22.83' | 22.50' |
| Engine Wheelbase | 55.83' | 55' |
| Ratio of driving wheelbase to overall engine wheebase | 0.41 | 0.41 |
| Overall Wheelbase (engine & tender) | 89.33' | 93.92' |
| Axle Loading (Maximum Weight per Axle) | 61520 lbs | |
| Weight on Drivers | 316800 lbs | 293560 lbs |
| Engine Weight | 395000 lbs | 374100 lbs |
| Tender Light Weight | 224100 lbs | 224100 lbs |
| Total Engine and Tender Weight | 619100 lbs | 598200 lbs |
| Tender Water Capacity | 16000 gals | 16000 gals |
| Tender Fuel Capacity (oil/coal) | 20 tons | 20 tons |
| Minimum weight per yard of rail on which locomotive could run | 106 lb rail | 98 lb rail |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter | 64" | 63" |
| Boiler Pressure | 210 psi | 205 psi |
| Cylinders (dia x stroke) | 29" x 32" | 29" x 32" |
| Tractive Effort | 75059 lbs | 74435 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.22 | 3.94 |
| Heating Ability | ||
| Firebox Area | 361 sq. ft | 408 sq. ft |
| Grate Area | 80.70 sq. ft | 100 sq. ft |
| Evaporative Heating Surface | 5355 | 4787 |
| Superheating Surface | 1301 | 1179 |
| Combined Heating Surface | 6656 | 5966 |
| Evaporative Heating Surface/Cylinder Volume | 218.90 | 195.68 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 16947 | 20500 |
| Same as above plus superheater percentage | 20336 | 24600 |
| Same as above but substitute firebox area for grate area | 90972 | 100368 |
| Power L1 | 17277 | 15343 |
| Power MT | 601.16 | 576.13 |
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