Both the builder's date and the boiler pressure are estimates.
Among the few Ten-wheeler classes operated by the N & W, this class had 9 1/2"piston valves and a good-sized boiler. Although procured as a fast-freight engines, they spent most of their career in light-passenger and mixed-traffic service.
| Specifications | ||
|---|---|---|
| Class | V1 | |
| Locobase ID | 9714 | 7822 |
| Railroad | Norfolk & Western | Norfolk & Western |
| Whyte | 4-6-0 | 4-6-0 |
| Road Numbers | 962-966 | |
| Gauge | Std | Std |
| Builder | shops | Alco-Richmond |
| Year | 1890 | 1902 |
| Valve Gear | Stephenson | Stephenson |
| Locomotive Length and Weight | ||
| Driver Wheelbase | 12.50' | |
| Engine Wheelbase | 23.75' | |
| Ratio of driving wheelbase to overall engine wheebase | 0.53 | |
| Overall Wheelbase (engine & tender) | 54.91' | |
| Axle Loading (Maximum Weight per Axle) | 0 | 44500 lbs |
| Weight on Drivers | 97800 lbs | 128025 lbs |
| Engine Weight | 123800 lbs | 162350 lbs |
| Tender Light Weight | 0 | 167500 lbs |
| Total Engine and Tender Weight | 0 | 329850 lbs |
| Tender Water Capacity | 0 | 9000 gals |
| Tender Fuel Capacity (oil/coal) | 0 | 14 tons |
| Minimum weight per yard of rail on which locomotive could run | 54.33 lb rail | 71.12 lb rail |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter | 62" | 62" |
| Boiler Pressure | 140 psi | 200 psi |
| Cylinders (dia x stroke) | 19" x 24" | 19.5" x 28" |
| Tractive Effort | 16629 lbs | 29193 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.88 | 4.39 |
| Heating Ability | ||
| Firebox Area | 151 sq. ft | 183 sq. ft |
| Grate Area | 29 sq. ft | 32.60 sq. ft |
| Evaporative Heating Surface | 1928 | 2403 |
| Superheating Surface | 0 | |
| Combined Heating Surface | 1928 | 2403 |
| Evaporative Heating Surface/Cylinder Volume | 244.80 | 248.28 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 4060 | 6520 |
| Same as above plus superheater percentage | 4060 | 6520 |
| Same as above but substitute firebox area for grate area | 21140 | 36600 |
| Power L1 | 4928.27 | 7085.06 |
| Power MT | 333.28 | 366.02 |
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