Data from "Logging Locomotives", Record of Recent Construction #96 (Baldwin Locomotive Works, 1918), p. 7. See also DeGolyer, Vol 52, pp. 353+. Works numbers were 43960 in August 1916, 56633 in May 1923. 57610 in January 1924.
This was a typical solution to the limitations posed by the twisting, steep, and lightly built logging roads on steam locomotive power. Add a truck at each end of a switcher to allow operation in either direction without turning the locomotive and to spread the weight over 67% more axles. The result was obviously satisfactory as the railroad added a second engine seven years later, and a third (bought by the Deer Lake's parent, Murphy Timber) in 1924. The latter two had 700-US gallon (2,650-litre) oil bunkers.
The Deer Island ran from the Columbia River to the VanNatta treefarm in eastern Oregon. At several points, the line built tall beanpole and cornstalk trestles to span deep creeks. The road laid 56 lb/yard (28 kg/metre) rail, included 5% grades, and curved up to 25 degrees (radii of 222 feet/67.7 metres).
After an unspecified number of years on the DILC, the 102 went to the Saginaw Logging Company in Valsetz, Ore as their #6. Western Logging bought the 6 years later and renumbered it 106. 101 was sold to Trask Willamette.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | 102 |
Locobase ID | 11005 |
Railroad | Deer Island Logging |
Country | USA |
Whyte | 2-6-2ST |
Number in Class | 1 |
Road Numbers | 102, 101, 103 |
Gauge | Std |
Number Built | 1 |
Builder | Baldwin |
Year | 1916 |
Valve Gear | Walschaert |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 10 / 3.05 |
Engine Wheelbase (ft / m) | 25.75 / 7.85 |
Ratio of driving wheelbase to overall engine wheelbase | 0.39 |
Overall Wheelbase (engine & tender) (ft / m) | 25.75 / 7.85 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 91,000 / 41,277 |
Engine Weight (lbs / kg) | 118,000 / 53,524 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | |
Tender Water Capacity (gals / ML) | 1600 / 6.06 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 550 / 2082 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 51 / 25.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 44 / 1118 |
Boiler Pressure (psi / kPa) | 165 / 1140 |
High Pressure Cylinders (dia x stroke) (in / mm) | 17" x 24" / 432x610 |
Tractive Effort (lbs / kg) | 22,109 / 10028.49 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.12 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 152 - 2" / 51 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 13.54 / 4.13 |
Firebox Area (sq ft / m2) | 80 / 7.43 |
Grate Area (sq ft / m2) | 14.40 / 1.34 |
Evaporative Heating Surface (sq ft / m2) | 1151 / 106.97 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 1151 / 106.97 |
Evaporative Heating Surface/Cylinder Volume | 182.41 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 2376 |
Same as above plus superheater percentage | 2376 |
Same as above but substitute firebox area for grate area | 13,200 |
Power L1 | 2974 |
Power MT | 216.15 |