Unspecified 0-8-0 "Switcher" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class Don Juan (Locobase 14038)

Data from []

Zerah Colburn drew a detailed elevation of this freighter at some point in the early 1850s. It had a small haystack smokebox, inclined cylinders, a meager footplate for the driver, and big stack.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassDon Juan
Locobase ID14038
Number in Class1
Road Numbers
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)48,000 / 21,772
Engine Weight (lbs / kg)48,000 / 21,772
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)20 / 10
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)42 / 1067
Boiler Pressure (psi / kPa)100
High Pressure Cylinders (dia x stroke) (in / mm)18" x 20" / 457x508
Tractive Effort (lbs / kg)13,114 / 5948.42
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.66
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)60 / 5.57
Grate Area (sq ft / m2)11.13 / 1.03
Evaporative Heating Surface (sq ft / m2)1042 / 96.80
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1042 / 96.80
Evaporative Heating Surface/Cylinder Volume176.91
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1113
Same as above plus superheater percentage1113
Same as above but substitute firebox area for grate area6000
Power L11595
Power MT293.03

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