Chicago, Hammond & Western 4-6-0 "Ten-wheeler" Locomotives of the USA


Class Details by Steve Llanso of Sweat House Media

Class 709 (Locobase 9942)

Data from "Shields' Ten-Wheeler", Locomotive Engineering, Vol X, No 8 (August 1897), p. 610.

Based on the specifications submitted by Master Mechanic Alexander Shields, this locomotive was designed precisely to handle the transfer traffic that was this railroads's core business. According to the editor,"...it is essential that the engines have great tractive power, combined with as short a wheel-base as possible, on account of the heavy trains to be hauled and the numerous curves that have to be traversed."

The CH & W had been bought soon after it was chartered by the Chicago Junction in 1898; the CJ had also leased the East Chicago Belt and the Terminal Railroad. After the ECB's lease expired in 1907, the CJ reorganized as the Indiana Harbor Belt Railroad

NB: Tube length is an estimate based on the calculation of tube surface area by subtracting reported firebox heating surface from reported total evaporative heating surface.

Specifications by Steve Llanso of Sweat House Media
Class709
Locobase ID9942
RailroadChicago, Hammond & Western
CountryUSA
Whyte4-6-0
Number in Class1
Road Numbers709
GaugeStd
Number Built1
BuilderSchenectady
Year1897
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)14.83
Engine Wheelbase (ft)25.92
Ratio of driving wheelbase to overall engine wheebase 0.57
Overall Wheelbase (engine & tender) (ft)52.79
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)109,000
Engine Weight (lbs)142,000
Tender Loaded Weight (lbs)
Total Engine and Tender Weight (lbs)
Tender Water Capacity (gals)
Tender Fuel Capacity (oil/coal) (gals/tons)
Minimum weight of rail (calculated) (lb/yd)61
Geometry Relating to Tractive Effort
Driver Diameter (in)57
Boiler Pressure (psi)200
High Pressure Cylinders (dia x stroke) (in)20" x 26"
Tractive Effort (lbs)31,018
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.51
Heating Ability
Firebox Area (sq ft)153.30
Grate Area (sq ft)26.80
Evaporative Heating Surface (sq ft)2318
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)2318
Evaporative Heating Surface/Cylinder Volume245.19
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation5360
Same as above plus superheater percentage5360
Same as above but substitute firebox area for grate area30,660
Power L16199
Power MT376.14


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