Columbia & Puget Sound 2-8-0 "Consolidation" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 7 (Locobase 12240)

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.

Specifications by Steve Llanso of Sweat House Media
Locobase ID12,240
RailroadColumbia & Puget Sound
Number in Class3
Road Numbers7-8, 11
Number Built3
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)13.67
Engine Wheelbase (ft)21.33
Ratio of driving wheelbase to overall engine wheebase 0.64
Overall Wheelbase (engine & tender) (ft)
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)100,000
Engine Weight (lbs)115,000
Tender Loaded Weight (lbs)60,000
Total Engine and Tender Weight (lbs)175,000
Tender Water Capacity (gals)3500
Tender Fuel Capacity (oil/coal) (gals/tons)
Minimum weight of rail (calculated) (lb/yd)42
Geometry Relating to Tractive Effort
Driver Diameter (in)50
Boiler Pressure (psi)180
High Pressure Cylinders (dia x stroke) (in)19" x 24"
Tractive Effort (lbs)26,512
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.77
Heating Ability
Firebox Area (sq ft)128
Grate Area (sq ft)23.80
Evaporative Heating Surface (sq ft)1537
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)1537
Evaporative Heating Surface/Cylinder Volume195.15
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4284
Same as above plus superheater percentage4284
Same as above but substitute firebox area for grate area23,040
Power L14146
Power MT365.61

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