Data from Baldwin Locomotive Works datacard as digitized by the DeGolyer Library of Southern Methodist University, Volume 43, p. 173. Works numbers were 31472 in August 1907 and 39058 in January 1913.
The PS&BR was chartered as a common-carrier and these two Baldwins were the first new locomotives on the road. Although it conveyed general freight and even a few passengers, its layout was dictated by the lumber business. Maximum grades reached 6% and curves bent around at 25 degrees.
By 1914, the 23 1/2 mile (37.8 km) long railway reported to the Washington State Public Service Commission that in addition to the logs it moved down the Skagit River, it received 5,042 tons of crude oil, machinery, and general supplies and 12,402 tons of sand and gravel.
The 1 never left and was scrapped in July 1957, fifteen years after PS&BR stopped operating as a common carrier. The 2 was donated for display at Sedro-Woolley, Wash in 1956.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 1 |
| Locobase ID | 15114 |
| Railroad | Puget Sound & Baker River |
| Country | USA |
| Whyte | 4-6-0 |
| Number in Class | 2 |
| Road Numbers | 1-2 |
| Gauge | Std |
| Number Built | 2 |
| Builder | Burnham, Williams & Co |
| Year | 1907 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 11 / 3.35 |
| Engine Wheelbase (ft / m) | 21.25 / 6.48 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.52 |
| Overall Wheelbase (engine & tender) (ft / m) | 45.92 / 14 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 84,000 / 38,102 |
| Engine Weight (lbs / kg) | 104,000 / 47,174 |
| Tender Loaded Weight (lbs / kg) | 60,000 / 27,216 |
| Total Engine and Tender Weight (lbs / kg) | 164,000 / 74,390 |
| Tender Water Capacity (gals / ML) | 3000 / 11.36 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 47 / 23.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 46 / 1168 |
| Boiler Pressure (psi / kPa) | 170 / 1170 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 16" x 24" / 406x610 |
| Tractive Effort (lbs / kg) | 19,300 / 8754.34 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.35 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 190 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 12.75 / 3.89 |
| Firebox Area (sq ft / m2) | 120 / 11.15 |
| Grate Area (sq ft / m2) | 19.70 / 1.83 |
| Evaporative Heating Surface (sq ft / m2) | 1380 / 128.21 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1380 / 128.21 |
| Evaporative Heating Surface/Cylinder Volume | 246.87 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3349 |
| Same as above plus superheater percentage | 3349 |
| Same as above but substitute firebox area for grate area | 20,400 |
| Power L1 | 4616 |
| Power MT | 363.45 |