Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volumes 26, p. 268 and 31, p. 107. Works numbers were 23883 in March 1904 and 32249 in November 1907.
For some reason the first of these two little Moguls carried the builder's number on the number plate - certainly inflated the public image of the rolling stock of this Williams, Ariz lumber railroad. The 3's specifications show a heavier engine with a relatively precise adhesion weight estimate of 90,850 lb and an engine weight of 106,730 lb.
The S & ML of Arizona was a subsidiary of the Michigan lumber company; it obtained a lease of forest lands on the northern rim of the Grand Canyon in 1911 and these 2-6-0s operated in the high desert well into the 1950s.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | August Lindstrom |
| Locobase ID | 11493 |
| Railroad | Saginaw & Manistee Lumber Company |
| Country | USA |
| Whyte | 2-6-0 |
| Number in Class | 2 |
| Road Numbers | 23883 / 2-3 |
| Gauge | Std |
| Number Built | 2 |
| Builder | Burnham, Williams & Co |
| Year | 1904 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 11.50 / 3.51 |
| Engine Wheelbase (ft / m) | 19.33 / 5.89 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.59 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 86,000 / 39,009 |
| Engine Weight (lbs / kg) | 102,000 / 46,266 |
| Tender Loaded Weight (lbs / kg) | 100,000 / 45,359 |
| Total Engine and Tender Weight (lbs / kg) | 202,000 / 91,625 |
| Tender Water Capacity (gals / ML) | 5000 / 18.94 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 48 / 24 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 50 / 1270 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18" x 24" / 457x610 |
| Tractive Effort (lbs / kg) | 23,795 / 10793.24 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.61 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 200 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11 / 3.35 |
| Firebox Area (sq ft / m2) | 118.90 / 11.05 |
| Grate Area (sq ft / m2) | 20.70 / 1.92 |
| Evaporative Heating Surface (sq ft / m2) | 1263 / 117.38 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1263 / 117.38 |
| Evaporative Heating Surface/Cylinder Volume | 178.64 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3726 |
| Same as above plus superheater percentage | 3726 |
| Same as above but substitute firebox area for grate area | 21,402 |
| Power L1 | 3941 |
| Power MT | 303.08 |