Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 31, p. 28 Works number was 31691 in September 1907.
6 later was converted to using Southern valve gear, which had been patented by designer William S Brown in 1906.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 6 |
| Locobase ID | 12849 |
| Railroad | Wiscasset, Waterville & Farmington |
| Country | USA |
| Whyte | 2-6-2 |
| Number in Class | 1 |
| Road Numbers | 6 |
| Gauge | 2' |
| Number Built | 1 |
| Builder | Burnham, Williams & Co |
| Year | 1907 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7 / 2.13 |
| Engine Wheelbase (ft / m) | 20 / 6.10 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.35 |
| Overall Wheelbase (engine & tender) (ft / m) | 37.50 / 11.43 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 40,000 / 18,144 |
| Engine Weight (lbs / kg) | 51,500 / 23,360 |
| Tender Loaded Weight (lbs / kg) | 30,000 / 13,608 |
| Total Engine and Tender Weight (lbs / kg) | 81,500 / 36,968 |
| Tender Water Capacity (gals / ML) | 1500 / 5.68 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 22 / 11 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 33 / 838 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 12" x 16" / 305x406 |
| Tractive Effort (lbs / kg) | 10,682 / 4845.28 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.74 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 128 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 10.76 / 3.28 |
| Firebox Area (sq ft / m2) | |
| Grate Area (sq ft / m2) | 9.30 / 0.86 |
| Evaporative Heating Surface (sq ft / m2) | |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | |
| Evaporative Heating Surface/Cylinder Volume | |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1674 |
| Same as above plus superheater percentage | 1674 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |