Data from Baldwin Locomotive Works datacard as digitized by the DeGolyer Library of Southern Methodist University. Works numbers were 15439-15440 in July 1897 and 19298
in July 1901.
The C&PS was operated by the Pacific Coast (described briefly in Locobase 12079). All of this design of Consolidations experienced a change of status in 1916. The 8 adopted the parent Pacific Coast herald in March. The 7 was sold to McKenna Lumber Company for $6,000 in July; that company retired its engine in 1932.
Both were scrapped in July 1940.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 7 |
| Locobase ID | 12240 |
| Railroad | Columbia & Puget Sound |
| Country | USA |
| Whyte | 2-8-0 |
| Number in Class | 3 |
| Road Numbers | 7-8, 11 |
| Gauge | Std |
| Number Built | 3 |
| Builder | Burnham, Williams & Co |
| Year | 1897 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 13.67 / 4.17 |
| Engine Wheelbase (ft / m) | 21.33 / 6.50 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.64 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 100,000 / 45,359 |
| Engine Weight (lbs / kg) | 115,000 / 52,163 |
| Tender Loaded Weight (lbs / kg) | 60,000 / 27,216 |
| Total Engine and Tender Weight (lbs / kg) | 175,000 / 79,379 |
| Tender Water Capacity (gals / ML) | 3500 / 13.26 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 42 / 21 |
| 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) | 19" x 24" / 483x610 |
| Tractive Effort (lbs / kg) | 26,512 / 12025.66 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.77 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 183 - 2.25" / 57 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 13.25 / 4.04 |
| Firebox Area (sq ft / m2) | 128 / 11.90 |
| Grate Area (sq ft / m2) | 23.80 / 2.21 |
| Evaporative Heating Surface (sq ft / m2) | 1537 / 142.84 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1537 / 142.84 |
| Evaporative Heating Surface/Cylinder Volume | 195.05 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 4284 |
| Same as above plus superheater percentage | 4284 |
| Same as above but substitute firebox area for grate area | 23,040 |
| Power L1 | 4144 |
| Power MT | 365.44 |