Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 48, p. 239 and 241. Works numbers were 38271 in September 1912, 38965 in December, and 39698 in April 1913.
C A Smith Lumber and Manufacturing Company was based in Oregon and like many other logging companies of the time found that their profile and traffic levels overmatched the traditional 6-coupled engines (2-6-2 or 4-6-0, for example). The trio of 2-8-2s shown in this entry followed a Baldwin design already in use by several companies.
The working conditions weren't as onerous as many other timber venues: Maximum grade reached 2%, the sharpest curves bent at only 11 degrees (521-ft/159-m radius), and the rails weighed 60 lb/yard (30 kg/metre), a relatively hefty figure. 101 used soft coal while 102 burned the lower-calorie lignite. A note in 103's spec shows that the grate bars and fingers had 5/8" (15.9 mm) openings to hold the finer lumps of coal.
Smith-Powers was renamed Coos Bay Lumber Company in 1921. In 1926, 101 went to work for Puget Sound Pulp. It was scrapped at Mt Vernon, Wash. in 1941. 102, on the other hand, remained with Coos Bay until 1942, when it was drafted by the US Army and given road number 6813.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 101 |
| Locobase ID | 13906 |
| Railroad | Smith-Powers Logging Company |
| Country | USA |
| Whyte | 2-8-2 |
| Number in Class | 3 |
| Road Numbers | 101-103 |
| Gauge | Std |
| Number Built | 3 |
| Builder | Baldwin |
| Year | 1912 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 12.08 / 3.68 |
| Engine Wheelbase (ft / m) | 27.25 / 8.31 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.44 |
| Overall Wheelbase (engine & tender) (ft / m) | 49.96 / 15.23 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 113,500 / 50,349 |
| Engine Weight (lbs / kg) | 141,100 / 63,049 |
| Tender Loaded Weight (lbs / kg) | 84,000 / 31,752 |
| Total Engine and Tender Weight (lbs / kg) | 225,100 / 94,801 |
| Tender Water Capacity (gals / ML) | 4200 / 13.26 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 7 / 6 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 47 / 23.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 44 / 1118 |
| Boiler Pressure (psi / kPa) | 185 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18" x 24" / 457x610 |
| Tractive Effort (lbs / kg) | 27,790 / 12605.35 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.08 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 291 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 13 / 3.96 |
| Firebox Area (sq ft / m2) | 140 / 13.01 |
| Grate Area (sq ft / m2) | 25.50 / 2.37 |
| Evaporative Heating Surface (sq ft / m2) | 2108 / 195.84 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 2108 / 195.84 |
| Evaporative Heating Surface/Cylinder Volume | 298.16 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 4718 |
| Same as above plus superheater percentage | 4718 |
| Same as above but substitute firebox area for grate area | 25,900 |
| Power L1 | 5388 |
| Power MT | 418.63 |