Pacific Lumber Company 2-4-2 "Columbian" Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class 5 (Locobase 13615)

Data from Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 27, p.55. Works number was 24317 in June 1904.

Typical wood-burning double-ender tank for the Scotia, Calif redwood logger. Unlike the later logging Prairies, this engine was sold after a short time to the Holmes-Eureka Lumber Company.

Principal Dimensions by Steve Llanso of Sweat House Media
Class5
Locobase ID13,615
RailroadPacific Lumber Company (PALCO)
CountryUSA
Whyte2-4-2T
Number in Class1
Road Numbers5 / 25
GaugeStd
Number Built1
BuilderBurnham, Williams & Co
Year1904
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)7 / 2.13
Engine Wheelbase (ft / m)22.67 / 6.91
Ratio of driving wheelbase to overall engine wheebase 0.31
Overall Wheelbase (engine & tender) (ft / m)22.67 / 6.91
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)67,000 / 30,391
Engine Weight (lbs / kg)94,000 / 42,638
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)94,000
Tender Water Capacity (gals / ML)1500 / 5.68
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)56 / 28
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)44 / 1118
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)16" x 24" / 406x610
Tractive Effort (lbs / kg)18,991 / 8614.18
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.53
Heating Ability
Firebox Area (sq ft / m2)77.70 / 7.22
Grate Area (sq ft / m2)14.40 / 1.34
Evaporative Heating Surface (sq ft / m2)1062 / 98.66
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1062 / 98.66
Evaporative Heating Surface/Cylinder Volume190.15
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2304
Same as above plus superheater percentage2304
Same as above but substitute firebox area for grate area12,432
Power L13047
Power MT200.52

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