Data from DeGolyer, Vol 53, pp. 20+. Works number was 45248 in February 1917.
This wood-burning logging Mikado used a Radley & Hunter spark-arresting stack. Its purview covered the Enterprise, Ore timber harvester's range and included the need to take 100 short tons of trailing load up a 6% maximum grades and negotiate 25 degree curves (radii of 231 feet/70.4 metres) while rolling on standard 56 lb/yard (28 kg/metre) rail. The 3 was later sold to the Columbia & Colitz as their 102 and went on to serve that line's successor Weyerhaeuser Timber Company.
| Principal Dimensions by Steve Llanso of Sweat House Media | |
|---|---|
| Class | 3 |
| Locobase ID | 14,323 |
| Railroad | East Oregon Lumber Company |
| Country | USA |
| Whyte | 2-8-2 |
| Number in Class | 1 |
| Road Numbers | 3 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1917 |
| Valve Gear | Walschaert |
| 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 wheebase | 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) | 111,000 / 50,349 |
| Engine Weight (lbs / kg) | 139,000 / 63,049 |
| Tender Loaded Weight (lbs / kg) | 80,000 / 36,287 |
| Total Engine and Tender Weight (lbs / kg) | 219,000 / 99,336 |
| Tender Water Capacity (gals / ML) | 4000 / 15.15 |
| Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 46 / 23 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 44 / 1118 |
| Boiler Pressure (psi / kPa) | 180 / 12.40 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18" x 24" / 457x610 |
| Tractive Effort (lbs / kg) | 27,039 / 12264.70 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.11 |
| Heating Ability | |
| 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 | 298.22 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 4590 |
| Same as above plus superheater percentage | 4590 |
| Same as above but substitute firebox area for grate area | 25,200 |
| Power L1 | 5244 |
| Power MT | 416.61 |