Wabeno, Otter Lake & Eastern 2-6-2 "Prairie" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class Soperton (Locobase 15050)

Data from Roy V Wright (Ed.) 1912 Locomotive Cyclopedia of American Practice, Sixth Edition (New York: Simmons-Boardman Publishing Company, 1912), p. 168. But see Alco's Negative P-531, supplied by Chris Hohl in a 26 October 2016 email, which shows that the Soperton was built by Alco's Pittsburgh Works. (Many thanks to Chris for spotting the error and supplying the data that enriched the entry.) See also Dick Quinlan, "The Menominee Bay Shore Lumber Co. 'The Big Red Mill'", Chips and Sawdust, No 29, Number 2 (Summer 2004), pp. 3-8 (found at [], last accessed 3 November 2016.) Works number was 45582 in August 1908.

Owned by the Menominee Bay Shore Lumber Company, the WOL&E ran through Forest County from Soperton (the namesake of the 101 and headquarters). Soperton, platted in the woods about 80 miles NW of Green Bay, Wis, was named for the Menominee's president Alex Soper.

Quinlan writes that "was established as a company town. Built in the heart of rich stands of virgin timber, the community--like the lumber company--was geared to last just ten years. Take the timber off the lands and scoot--that was the philosophy of those years." They had 40,000 acres to choose from and felled "wonderful stands" of ash, birch, butternut, cherry, elm, hard maple, and hemlock,

The Soper brothers may have intended to do the same, but, says Quninlan, "they erred in its projected lifetime. It raced with profit through its expected lifetime of ten years--and then remained almost another thirty years." Quinlan details the

The railroad served timber harvesting operations on a 12-mile (19.3 km) road in this area for 25 years before being relocated to Long Lake in Florence county. Much of the MBSLC's land was later sold to the Federal Government "at deflated prices" as it established the Nicolet National Forest.

Principal Dimensions by Steve Llanso of Sweat House Media
Locobase ID15,050
RailroadWabeno, Otter Lake & Eastern
Number in Class1
Road Numbers101
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 9.50 / 2.90
Engine Wheelbase (ft / m)25.75 / 7.85
Ratio of driving wheelbase to overall engine wheebase 0.37
Overall Wheelbase (engine & tender) (ft / m)48.75 / 14.86
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)88,000 / 39,916
Engine Weight (lbs / kg)120,000 / 54,431
Tender Loaded Weight (lbs / kg)80,900 / 36,696
Total Engine and Tender Weight (lbs / kg)200,900 / 91,127
Tender Water Capacity (gals / ML)3600 / 13.64
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)6 / 5.50
Minimum weight of rail (calculated) (lb/yd / kg/m)49 / 24.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)43 / 1092
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)17" x 22" / 432x559
Tractive Effort (lbs / kg)22,623 / 10261.63
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.89
Heating Ability
Firebox Area (sq ft / m2)112 / 10.41
Grate Area (sq ft / m2)21.10 / 1.96
Evaporative Heating Surface (sq ft / m2)1450 / 134.71
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1450 / 134.71
Evaporative Heating Surface/Cylinder Volume250.88
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3798
Same as above plus superheater percentage3798
Same as above but substitute firebox area for grate area20,160
Power L14486
Power MT337.16

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