Oconto Company 2-6-2 "Prairie" Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class 6 (Locobase 14057)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 45, p. 54. See also the Master List of Wisconsin Logging Roads archived at http://sassmaster.tripod.com/lang.html . Works number was 40946 in December 1913.

Oconto County is located on the western shore of Green Bay in northeastern Wisconsin. One of the largest single landowners in the county, the Oconto Company was the parent of the Nahma & Northern in northern Michigan.

Principal Dimensions by Steve Llanso of Sweat House Media
Class6
Locobase ID14,057
RailroadOconto Company
CountryUSA
Whyte2-6-2
Number in Class1
Road Numbers6
GaugeStd
Number Built1
BuilderBaldwin
Year1913
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m) 9.33 / 2.84
Engine Wheelbase (ft / m)25 / 7.62
Ratio of driving wheelbase to overall engine wheebase 0.37
Overall Wheelbase (engine & tender) (ft / m)47.50 / 14.48
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)81,000 / 36,741
Engine Weight (lbs / kg)103,000 / 46,720
Tender Loaded Weight (lbs / kg)60,000 / 27,216
Total Engine and Tender Weight (lbs / kg)163,000 / 73,936
Tender Water Capacity (gals / ML)3000 / 11.36
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)6 / 5.50
Minimum weight of rail (calculated) (lb/yd / kg/m)45 / 22.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)46 / 1168
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)16" x 24" / 406x610
Tractive Effort (lbs / kg)20,435 / 9269.17
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.96
Heating Ability
Firebox Area (sq ft / m2)78 / 7.25
Grate Area (sq ft / m2)15.90 / 1.48
Evaporative Heating Surface (sq ft / m2)1329 / 123.47
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1329 / 123.47
Evaporative Heating Surface/Cylinder Volume237.96
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2862
Same as above plus superheater percentage2862
Same as above but substitute firebox area for grate area14,040
Power L14247
Power MT346.78