Data from Baldwin Locomotive Works Specification for Engines, as digitized by the DeGolyer Library of Southern Methodist University Volume 14, p. 73. See also "Slope Haulage at Sayreton, Alabama", Colliery Engineer, Volume 43, No 3 (), pp. 155Works number was 9039 in February 1888.
After 1899, the PM&M was reorganized as Thomas & Sayerton Railroad, recognizing the new 4-mile (6.5 km) line connecting the two towns in the Birmingham, Ala area. In November 1904, PM&M sold the 2 to Republic Iron & Steel. The 1913 report said that Republic mined coal from the Sayreton slope on the Mary Lee or "Big Seam" and transported it to the Thomas, Ala coke plant.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Sam |
| Locobase ID | 11660 |
| Railroad | Pioneer Mining & Manufacturing |
| Country | USA |
| Whyte | 0-4-2T |
| Number in Class | 1 |
| Road Numbers | 2 |
| Gauge | 2'6" |
| Number Built | 1 |
| Builder | Burnham, Parry, Williams & Co |
| Year | 1888 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 4.50 / 1.37 |
| Engine Wheelbase (ft / m) | 10.75 / 3.28 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.42 |
| Overall Wheelbase (engine & tender) (ft / m) | 10.75 / 3.28 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 20,000 / 9072 |
| Engine Weight (lbs / kg) | 27,000 / 12,247 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 27,000 |
| Tender Water Capacity (gals / ML) | 400 / 1.52 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 17 / 8.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 35 / 889 |
| Boiler Pressure (psi / kPa) | 130 / 900 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 9" x 16" / 229x406 |
| Tractive Effort (lbs / kg) | 4092 / 1856.10 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.89 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 86 - 1.5" / 38 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 7.97 / 2.43 |
| Firebox Area (sq ft / m2) | 33.30 / 3.09 |
| Grate Area (sq ft / m2) | 8 / 0.74 |
| Evaporative Heating Surface (sq ft / m2) | 295 / 27.42 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 295 / 27.42 |
| Evaporative Heating Surface/Cylinder Volume | 250 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1040 |
| Same as above plus superheater percentage | 1040 |
| Same as above but substitute firebox area for grate area | 4329 |
| Power L1 | 2966 |
| Power MT | 653.89 |