Portland & Vancouver 2-4-2 "Columbian" Locomotives of the USA


Class Details by Steve Llanso of Sweat House Media

Class 2 (Locobase 11608)

Data from Baldwin Locomotive Works Specification for Engines, 1888, as digitized by the DeGolyer Library of Southern Methodist University Vol 15, p. 56. Works numbers were 9944-9945 in April 1889.

These were steam dummies that pulled cars on Union Avenue of Portland to the Columbia River. The route was electrified in 1892 and these were retired. A fire in October 1896 apparently wrecked both engines.

Specifications by Steve Llanso of Sweat House Media
Class2
Locobase ID11,608
RailroadPortland & Vancouver
CountryUSA
Whyte2-4-2T
Number in Class2
Road Numbers2-3
Gauge3'
Number Built2
BuilderBurnham, Parry, Williams & Co
Year1889
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)5
Engine Wheelbase (ft)18.08
Ratio of driving wheelbase to overall engine wheebase 0.28
Overall Wheelbase (engine & tender) (ft)18.08
Axle Loading (Maximum Weight per Axle) (lbs)14,520
Weight on Drivers (lbs)27,800
Engine Weight (lbs)42,690
Tender Loaded Weight (lbs)
Total Engine and Tender Weight (lbs)
Tender Water Capacity (gals)500
Tender Fuel Capacity (oil/coal) (gals/tons)
Minimum weight of rail (calculated) (lb/yd)23
Geometry Relating to Tractive Effort
Driver Diameter (in)39
Boiler Pressure (psi)130
High Pressure Cylinders (dia x stroke) (in)12" x 16"
Tractive Effort (lbs)6528
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.26
Heating Ability
Firebox Area (sq ft)
Grate Area (sq ft) 7.50
Evaporative Heating Surface (sq ft)
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)
Evaporative Heating Surface/Cylinder Volume
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation975
Same as above plus superheater percentage975
Same as above but substitute firebox area for grate area
Power L1
Power MT


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