Copper River Land Company 2-6-2 "Prairie" Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class 101 (Locobase 13703)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 27, p. 233. Works number was 35873 in January 1911.

Copper River asked for a locomotive that could negotiate 3% grades and 250-ft radius curves on rails weighing 55-60 lb/yard (27.5-30 kg/metre). This middle-range logging Prairie was the result. For some reason, the spec was emphatic that "Design and construction of boiler to be given special attention".

Marathon County, Wisconsin hosted several railroads, including this line, which was owned by U S Leather. At some point, the CRLC gave title of the 101 to US Leather's associated Rib Lake Lumber Company.

Principal Dimensions by Steve Llanso of Sweat House Media
Class101
Locobase ID13,703
RailroadCopper River Land Company
CountryUSA
Whyte2-6-2
Number in Class1
Road Numbers101
GaugeStd
Number Built1
BuilderBaldwin
Year1911
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 8.33 / 2.54
Engine Wheelbase (ft / m)23.83 / 7.26
Ratio of driving wheelbase to overall engine wheebase 0.35
Overall Wheelbase (engine & tender) (ft / m)46 / 14.02
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)88,000 / 39,916
Engine Weight (lbs / kg)119,000 / 53,978
Tender Loaded Weight (lbs / kg)70,000 / 31,752
Total Engine and Tender Weight (lbs / kg)189,000 / 85,730
Tender Water Capacity (gals / ML)3500 / 13.26
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)7 / 6.40
Minimum weight of rail (calculated) (lb/yd / kg/m)49 / 24.50
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)17" x 24" / 432x610
Tractive Effort (lbs / kg)24,118 / 10939.75
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.65
Heating Ability
Firebox Area (sq ft / m2)116 / 10.78
Grate Area (sq ft / m2)16 / 1.49
Evaporative Heating Surface (sq ft / m2)1556 / 144.56
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1556 / 144.56
Evaporative Heating Surface/Cylinder Volume246.79
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2880
Same as above plus superheater percentage2880
Same as above but substitute firebox area for grate area20,880
Power L14472
Power MT336.10