Evansville & Terre Haute 2-6-0 "Mogul" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 109/509/320 (Locobase 7159)

Data from the C&EI 11 -1911 Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Works numbers were 4516-4517 in June 1891.

Specifications by Steve Llanso of Sweat House Media
Locobase ID7159
RailroadEvansville & Terre Haute
Number in Class4
Road Numbers109-110/509-510/320-321
Number Built2
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)13.83
Engine Wheelbase (ft)21.67
Ratio of driving wheelbase to overall engine wheebase 0.64
Overall Wheelbase (engine & tender) (ft)47.33
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)98,000
Engine Weight (lbs)114,000
Tender Loaded Weight (lbs)70,000
Total Engine and Tender Weight (lbs)184,000
Tender Water Capacity (gals)4000
Tender Fuel Capacity (oil/coal) (gals/tons)7
Minimum weight of rail (calculated) (lb/yd)54
Geometry Relating to Tractive Effort
Driver Diameter (in)55
Boiler Pressure (psi)155
High Pressure Cylinders (dia x stroke) (in)19" x 24"
Tractive Effort (lbs)20,754
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.72
Heating Ability
Firebox Area (sq ft)150
Grate Area (sq ft)27
Evaporative Heating Surface (sq ft)1440
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)1440
Evaporative Heating Surface/Cylinder Volume182.84
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4185
Same as above plus superheater percentage4185
Same as above but substitute firebox area for grate area23,250
Power L13951
Power MT266.65

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