Fond du Lac, Amboy & Peoria 2-6-0 "Mogul" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class Judge Kinyon (Locobase 16182)

Data from DeGolyer, Volume 8, p. 97. See also Fond du Lac, Amboy & Peoria Railroad in George Woodman Hilton, American Narrow-Gauge Railroads (Stanford University Press, 1990), p. 557. Baldwin works number was 4132 in August 1877.

Another in a string of small Moguls built with the same boiler and firebox, this engine was built for stock with the longer-stroke cylinders, but a slightly narrower grate.The FdLA&P bought it from the stock track in June 1880.

The FdLA&P arose from a grandiose dream to connect the Inland Rivers system available at Peoria with access to the Great Lakes and St Lawrence River at Fond du Lac, Wisconsin. But it never built more than the 30 miles (48 km) from Fond du Lac to Iron Ridge, where it connected with the Chicago, Milwaukee & St Paul. Financial misdeeds stopped all development and the Milwaukee Road soon bought the Fond du Lac branch and converted it to standard gauge in May 1884.

Principal Dimensions by Steve Llanso of Sweat House Media
ClassJudge Kinyon
Locobase ID16,182
RailroadFond du Lac, Amboy & Peoria (CM&StP)
Number in Class1
Road Numbers2/104/414/1403
Number Built1
BuilderBurnham, Parry, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)11.67 / 3.56
Engine Wheelbase (ft / m)17.67 / 5.39
Ratio of driving wheelbase to overall engine wheebase 0.66
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)33,000 / 14,969
Engine Weight (lbs / kg)40,000 / 18,144
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)1200 / 7.58
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)18 / 9
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)37 / 940
Boiler Pressure (psi / kPa)130 / 9
High Pressure Cylinders (dia x stroke) (in / mm)12" x 18" / 305x457
Tractive Effort (lbs / kg)7741 / 3511.26
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.26
Heating Ability
Firebox Area (sq ft / m2)60 / 5.57
Grate Area (sq ft / m2) 8.20 / 0.76
Evaporative Heating Surface (sq ft / m2)451 / 41.90
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)451 / 41.90
Evaporative Heating Surface/Cylinder Volume191.41
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1066
Same as above plus superheater percentage1066
Same as above but substitute firebox area for grate area7800
Power L12555
Power MT512.07

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Wes Barris