This single Ten-wheeler went into service with the Clinch's predecessor -- the generically named South & Western Railroad as #1. (The S & W had started business as the Ohio River & Charleston.)
The Clinchfield took over the S & W and its three locomotives in 1908. #1's drivers indicate a line with steep grades and low passenger demand. It was produced to a 19th-century layout that included slide valves and Stephenson gear.
Unlike the slightly later, but updated, G-2s (Locobase 9153), this engine operated into the 1950s. 99 was sold to the Black Mountain Railroad in June 1953 as #3. The Black Mountain sold it to the Yancey Railroad in Burnsville, NC in 1956. Ultimately the 1/99/3 went on display at the Casey Jones Museum.
| Specifications | |
|---|---|
| Class | G-1 |
| Locobase ID | 9152 |
| Railroad | South & Western (Clinch) |
| Whyte | 4-6-0 |
| Road Numbers | 99 |
| Gauge | Std |
| Builder | Burnham, Williams & Co |
| Year | 1905 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase | 13.33' |
| Engine Wheelbase | 24.50' |
| Ratio of driving wheelbase to overall engine wheebase | 0.54 |
| Overall Wheelbase (engine & tender) | 54.75' |
| Axle Loading (Maximum Weight per Axle) | |
| Weight on Drivers | 98000 lbs |
| Engine Weight | 137700 lbs |
| Tender Light Weight | 99300 lbs |
| Total Engine and Tender Weight | 237000 lbs |
| Tender Water Capacity | 4500 gals |
| Tender Fuel Capacity (oil/coal) | 12.5 tons |
| Minimum weight per yard of rail on which locomotive could run | 54.44 lb rail |
| Geometry Relating to Tractive Effort | |
| Driver Diameter | 63" |
| Boiler Pressure | 200 psi |
| Cylinders (dia x stroke) | 19" x 26" |
| Tractive Effort | 25327 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.87 |
| Heating Ability | |
| Firebox Area | |
| Grate Area | 29 sq. ft |
| Evaporative Heating Surface | 2164 |
| Superheating Surface | |
| Combined Heating Surface | 2164 |
| Evaporative Heating Surface/Cylinder Volume | 253.63 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 5800 |
| Same as above plus superheater percentage | 5800 |
| Same as above but substitute firebox area for grate area | 0 |
| Power L1 | 0 |
| Power MT | 0 |
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