Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 45, p. 22. (Thanks to Chris Hohl for his 9 May 2015 email and spreadsheet pointing out the lack of an entry for the number 6 and for supplying the detail.) Works number was 38085 in August 1912.
This was one of the typical Baldwin light logging Prairies built in the 19teens. Rail weights on this North Carolina logging railroad were a very light 25-30 lb/yard (12.5-15 kg/metre) rail.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 6 |
| Locobase ID | 16081 |
| Railroad | Rowland Lumber Company |
| Country | USA |
| Whyte | 2-6-2 |
| Number in Class | 1 |
| Road Numbers | 6 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1912 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7.83 / 2.39 |
| Engine Wheelbase (ft / m) | 20.58 / 6.27 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.38 |
| Overall Wheelbase (engine & tender) (ft / m) | 39.69 / 12.10 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 37,500 / 17,010 |
| Engine Weight (lbs / kg) | 51,000 / 23,133 |
| Tender Loaded Weight (lbs / kg) | 37,000 / 16,783 |
| Total Engine and Tender Weight (lbs / kg) | 88,000 / 39,916 |
| Tender Water Capacity (gals / ML) | 2000 / 7.58 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 21 / 10.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 36 / 914 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 11" x 16" / 279x406 |
| Tractive Effort (lbs / kg) | 7314 / 3317.58 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.13 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 83 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 10.08 / 3.07 |
| Firebox Area (sq ft / m2) | 55 / 5.11 |
| Grate Area (sq ft / m2) | 14 / 1.30 |
| Evaporative Heating Surface (sq ft / m2) | 435 / 40.41 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 435 / 40.41 |
| Evaporative Heating Surface/Cylinder Volume | 247.16 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2240 |
| Same as above plus superheater percentage | 2240 |
| Same as above but substitute firebox area for grate area | 8800 |
| Power L1 | 3873 |
| Power MT | 683.08 |