Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 24, p. 76. Works number was 19610 in October 1901.
This mid-size Consolidation served several narrow-gauge line in several states. Holston Valley was a lumber road connecting Bristol with Big Creek in Tennessee. Soon after its arrival on the HVRR, however, it was sold to Virginia's Farmville & Powhatan, which was just then emerging from receivership under the new name Tidewater & Western.
Locobase 13687 describes the unusual end of the T & W in 1917. At that point, the 4 was sold off to locomotive rebuilder/reseller Southern Iron & Equipment. The SI & E sold the engine to the 29.8-mile long West Virginia Midland, which connected Holly Springs and Webster Springs. The WVM operated until 1931.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 4 |
| Locobase ID | 12558 |
| Railroad | Holston Valley |
| Country | USA |
| Whyte | 2-8-0 |
| Number in Class | 1 |
| Road Numbers | 4 |
| Gauge | 3' |
| Number Built | 1 |
| Builder | Burnham, Williams & Co |
| Year | 1901 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 11.50 / 3.51 |
| Engine Wheelbase (ft / m) | 18 / 5.49 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.64 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 58,000 / 26,308 |
| Engine Weight (lbs / kg) | 66,000 / 29,937 |
| Tender Loaded Weight (lbs / kg) | 40,000 / 18,144 |
| Total Engine and Tender Weight (lbs / kg) | 106,000 / 48,081 |
| Tender Water Capacity (gals / ML) | 1600 / 6.06 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 24 / 12 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 37 / 940 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 20" / 381x508 |
| Tractive Effort (lbs / kg) | 18,608 / 8440.46 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.12 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 161 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11.21 / 3.42 |
| Firebox Area (sq ft / m2) | 88.70 / 8.24 |
| Grate Area (sq ft / m2) | 14.20 / 1.32 |
| Evaporative Heating Surface (sq ft / m2) | 1026 / 95.35 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1026 / 95.35 |
| Evaporative Heating Surface/Cylinder Volume | 250.86 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2556 |
| Same as above plus superheater percentage | 2556 |
| Same as above but substitute firebox area for grate area | 15,966 |
| Power L1 | 3988 |
| Power MT | 606.35 |