Wisconsin Steel 0-4-0 "Switcher" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 8 (Locobase 8486)

Data from [] (accessed 1 June 2007), archiving an article by Rodney Weaver, "Steelworks Baldwins", Industrial Railway Record, No.60 (June 1975) - pp 52-54. See also DeGolyer, Vol 73, pp. 303+. Works number was 58366 in April 1925.

Weaver tells us that this industrial saddle-tanker had the usual attributes: Stephenson gear, slide valves, air brakes and electric lighting. To highlight the size difference between American and British locomotives with similar duties, the caption under the photo reads, in part:"...A typical Baldwin industrial locomotive of deceptive dimensions it was almost identical in size to a GWR 5700 class pannier tank, which would be considered a large industrial locomotive in Britain."

Principal Dimensions by Steve Llanso of Sweat House Media
Locobase ID8486
RailroadWisconsin Steel
Number in Class1
Road Numbers8
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 7.50 / 2.29
Engine Wheelbase (ft / m) 7.50 / 2.29
Ratio of driving wheelbase to overall engine wheebase1
Overall Wheelbase (engine & tender) (ft / m) 7.50 / 2.29
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)104,340 / 47,328
Engine Weight (lbs / kg)104,340 / 47,328
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)104,340
Tender Water Capacity (gals / ML)1250 / 4.73
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)375 / 1.40
Minimum weight of rail (calculated) (lb/yd / kg/m)87 / 43.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)50 / 1270
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)17" x 24" / 432x610
Tractive Effort (lbs / kg)21,224 / 9627.06
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.92
Heating Ability
Firebox Area (sq ft / m2)72 / 6.69
Grate Area (sq ft / m2)15.90 / 1.48
Evaporative Heating Surface (sq ft / m2)1146 / 106.47
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1146 / 106.47
Evaporative Heating Surface/Cylinder Volume181.76
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 area12,960
Power L13583
Power MT151.41

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