California & Oregon Lumber Company 2-6-2 "Prairie" Locomotives of the USA


Class Details by Steve Llanso of Sweat House Media

Class 5 (Locobase 15213)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 71, p. 217. Works number was 55277 in January 1922.

This oil-burning logging Prairie served a timber harvester based in Brookings, Ore. Founded by John E Brookings (later known for his role in creating the Brookings Institution), the town built the first railroad in Curry County in 1915-1917. The 5 was not big and its boiler was saturated, but it did have outside radial valve gear and 8" (203 mm) piston valves. It was a light railroad with 60 lb/yard (30 kg/metre) rail, imposing 6%, and 30-35 degree curves.

When the C&OLC sold its assets to Westfir Lumber in 1925, the new owners renumbered the 5 as their 2.

Specifications by Steve Llanso of Sweat House Media
Class5
Locobase ID15213
RailroadCalifornia & Oregon Lumber Company
CountryUSA
Whyte2-6-2
Number in Class1
Road Numbers5 / 2
GaugeStd
Number Built1
BuilderBaldwin
Year1922
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase10.25'
Engine Wheelbase26.58'
Ratio of driving wheelbase to overall engine wheebase 0.39
Overall Wheelbase (engine & tender)49.12'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers111000 lbs
Engine Weight140000 lbs
Tender Light Weight90400 lbs
Total Engine and Tender Weight230400 lbs
Tender Water Capacity4000 gals
Tender Fuel Capacity (oil/coal)2000 gals
Minimum weight of rail (calculated)62 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter44"
Boiler Pressure180 psi
Cylinders (dia x stroke)18" x 24"
Tractive Effort27039 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.11
Heating Ability
Firebox Area150 sq. ft
Grate Area26.20 sq. ft
Evaporative Heating Surface1804 sq. ft
Superheating Surface
Combined Heating Surface1804 sq. ft
Evaporative Heating Surface/Cylinder Volume255.21
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4716
Same as above plus superheater percentage4716
Same as above but substitute firebox area for grate area27000
Power L14769
Power MT284.16


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