Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 62, p. 415. Works number was 53037 in February 1920.
Baldwin built this superheated logging Consolidation for the Whitney Company, which operated the CRBL. It was a typical 2-8-0 for that service, although its 11" (279 mm) piston valves were on the large size. The rail line presented relatively modest grades of 1-2% and was laid with 60 lb/yard (30 kg/metre) rail. Still, braking power loomed large and the drivers were held back by both air and steam brake systems.
In 1927, the Whitney Company sold Big Jack to Tidewater Logging of Jewell, Ore, it lost its grand number and became #53 and went to work on the 18 mile (29 km) Astoria Southern.
When the AS Rwy closed in 1943, the 53 was sold to the Cowlitz Chehalis & Cascade of Chehalis, Wash and renumbered 25. The CC&C operated the 25 for another decade before donating to the City of Centralia in 1955.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Big Jack |
| Locobase ID | 14719 |
| Railroad | Columbia River Belt Line |
| Country | USA |
| Whyte | 2-8-0 |
| Number in Class | 1 |
| Road Numbers | 2501 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1920 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 14.25 / 4.34 |
| Engine Wheelbase (ft / m) | 21.92 / 6.68 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.65 |
| Overall Wheelbase (engine & tender) (ft / m) | 50.94 / 15.53 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 143,000 / 64,864 |
| Engine Weight (lbs / kg) | 159,000 / 72,121 |
| Tender Loaded Weight (lbs / kg) | 70,000 / 31,752 |
| Total Engine and Tender Weight (lbs / kg) | 229,000 / 103,873 |
| Tender Water Capacity (gals / ML) | 3500 / 13.26 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1200 / 4542 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 60 / 30 |
| 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) | 21" x 26" / 533x660 |
| Tractive Effort (lbs / kg) | 35,086 / 15914.76 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.08 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 157 - 2" / 51 |
| Flues (number - dia) (in / mm) | 24 - 5.375" / 137 |
| Flue/Tube length (ft / m) | 12.87 / 3.92 |
| Firebox Area (sq ft / m2) | 165 / 15.33 |
| Grate Area (sq ft / m2) | 31.40 / 2.92 |
| Evaporative Heating Surface (sq ft / m2) | 1645 / 152.88 |
| Superheating Surface (sq ft / m2) | 348 / 32.34 |
| Combined Heating Surface (sq ft / m2) | 1993 / 185.22 |
| Evaporative Heating Surface/Cylinder Volume | 157.87 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 5652 |
| Same as above plus superheater percentage | 6613 |
| Same as above but substitute firebox area for grate area | 34,749 |
| Power L1 | 8064 |
| Power MT | 497.29 |