Chicago & West Michigan 4-4-0 "American" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 117 (Locobase 9511)

Data from "Haskell's Locomotive" Railway and Locomotive Engineering, July 1899, page 315.

Mr B Haskell, Superintendent of Motive Power, designed this small locomotive that had a relatively low cylinder volume. They were reported to achieve 60 engine-miles/ton vs the 40 em/ton put up by 17" cylinder engines

Specifications by Steve Llanso of Sweat House Media
Locobase ID9511
RailroadChicago & West Michigan
Number in Class4
Road Numbers117
Number Built4
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase8'
Engine Wheelbase22.67'
Ratio of driving wheelbase to overall engine wheebase 0.35
Overall Wheelbase (engine & tender)
Axle Loading (Maximum Weight per Axle)
Weight on Drivers51350 lbs
Engine Weight89000 lbs
Tender Light Weight
Total Engine and Tender Weight
Tender Water Capacity
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)43 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter60"
Boiler Pressure180 psi
Cylinders (dia x stroke)16" x 24"
Tractive Effort15667 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.28
Heating Ability
Firebox Area
Grate Area16 sq. ft
Evaporative Heating Surface1867 sq. ft
Superheating Surface
Combined Heating Surface1867 sq. ft
Evaporative Heating Surface/Cylinder Volume334.29
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2880
Same as above plus superheater percentage2880
Same as above but substitute firebox area for grate area0
Power L10
Power MT0

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