Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 31, p. 100. Works numbers were 32292-32293 in November 1907.
Locobase 8389 describes the 25-engine class delivered to the Atlanta, Birmingham & Atlantic beginning in 1904. The last delivery of this design came in August 1907. The similarity of the T&T's two Ten-wheelers shown in the current entry suggests that Baldwin reused the AB&A drawings for a very different setting.
Whatever their origins, the pair served the Nevada line until it closed in 1942. Morrison Knudson bought both locomotives and scrapped them.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 9 |
| Locobase ID | 13232 |
| Railroad | Tonopah & Tidewater |
| Country | USA |
| Whyte | 4-6-0 |
| Number in Class | 2 |
| Road Numbers | 9-10 |
| Gauge | Std |
| Number Built | 2 |
| Builder | Burnham, Williams & Co |
| Year | 1907 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 13.50 / 4.11 |
| Engine Wheelbase (ft / m) | 24.33 / 7.42 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.55 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 111,700 / 50,666 |
| Engine Weight (lbs / kg) | 146,500 / 66,451 |
| Tender Loaded Weight (lbs / kg) | 88,000 / 39,916 |
| Total Engine and Tender Weight (lbs / kg) | 234,500 / 106,367 |
| Tender Water Capacity (gals / ML) | 4500 / 17.05 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2000 / 7570 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 62 / 31 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 63 / 1600 |
| Boiler Pressure (psi / kPa) | 200 / 1380 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 19" x 26" / 483x660 |
| Tractive Effort (lbs / kg) | 25,327 / 11488.15 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.41 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 289 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 14.42 / 4.40 |
| Firebox Area (sq ft / m2) | 166 / 15.42 |
| Grate Area (sq ft / m2) | 28.20 / 2.62 |
| Evaporative Heating Surface (sq ft / m2) | 2333 / 216.82 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 2333 / 216.82 |
| Evaporative Heating Surface/Cylinder Volume | 273.51 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 5640 |
| Same as above plus superheater percentage | 5640 |
| Same as above but substitute firebox area for grate area | 33,200 |
| Power L1 | 7787 |
| Power MT | 461.08 |