California & Oregon Lumber Company 2-6-2 "Prairie" Locomotives in 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.

Principal Dimensions by Steve Llanso of Sweat House Media
Locobase ID15,213
RailroadCalifornia & Oregon Lumber Company
Number in Class1
Road Numbers5 / 2
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)10.25 / 3.12
Engine Wheelbase (ft / m)26.58 / 8.10
Ratio of driving wheelbase to overall engine wheebase 0.39
Overall Wheelbase (engine & tender) (ft / m)49.12 / 14.97
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)111,000 / 50,349
Engine Weight (lbs / kg)140,000 / 63,503
Tender Loaded Weight (lbs / kg)90,400 / 41,005
Total Engine and Tender Weight (lbs / kg)230,400 / 104,508
Tender Water Capacity (gals / ML)4000 / 15.15
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)2000 / 7.60
Minimum weight of rail (calculated) (lb/yd / kg/m)62 / 31
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)44 / 1118
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)18" x 24" / 457x610
Tractive Effort (lbs / kg)27,039 / 12264.70
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.11
Heating Ability
Firebox Area (sq ft / m2)150 / 13.94
Grate Area (sq ft / m2)26.20 / 2.43
Evaporative Heating Surface (sq ft / m2)1804 / 167.60
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1804 / 167.60
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 area27,000
Power L14769
Power MT284.16

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