Jeffersonville, Madison & Indianapolis 0-10-0 Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class Reuben Wells (Locobase 4377)

Complete disagreement among sources about when this locomotive entered service and in what form. The San Diego Railroad Museum website ( says that Reuben Wells executed this eponymous engine in July 1858 as an 0-10-0T. "After having been in service for a number of years," the FAQ continues,"it was rebuilt with four instead of five pair of drivers and was shortened by the cutting off of a section at the rear which had been used for coal and water. Sufficient water capacity was provided by placing a tank over the boiler."

But -- Comstock (1971), Kinert (1966), and White (1972) all say the Wells was built in 1868. Kinert and Comstock both say it began service as an 0-8-0T and had an axle added later. (White doesn't comment.) The locomotive displayed in 1949 at the Chicago Railroad Fair was obviously an 0-10-0T with two long cylindrical water tanks flanking the boiler and coal bunker.

The JM&I later was absorbed by the Pennsylvania System.

Specifications by Steve Llanso of Sweat House Media
ClassReuben Wells
Locobase ID4377
RailroadJeffersonville, Madison & Indianapolis
Number in Class1
Road Numbers
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase18.42'
Engine Wheelbase18.42'
Ratio of driving wheelbase to overall engine wheebase1
Overall Wheelbase (engine & tender)39.87'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers112000 lbs
Engine Weight112000 lbs
Tender Light Weight
Total Engine and Tender Weight112000 lbs
Tender Water Capacity1800 gals
Tender Fuel Capacity (oil/coal)3 tons
Minimum weight of rail (calculated)37 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter49"
Boiler Pressure100 psi
Cylinders (dia x stroke)20" x 24"
Tractive Effort16653 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 6.73
Heating Ability
Firebox Area116 sq. ft
Grate Area15.75 sq. ft
Evaporative Heating Surface1378 sq. ft
Superheating Surface
Combined Heating Surface1378 sq. ft
Evaporative Heating Surface/Cylinder Volume157.91
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1575
Same as above plus superheater percentage1575
Same as above but substitute firebox area for grate area11600
Power L11832
Power MT180.31

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