Chicago & Calumet Terminal 2-8-2 "Mikado" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class E-4/Q (Locobase 15909)

Data from JC Whitredge (Ed) and D L Barnes (posth), Modern Locomotives (New York: The Railroad Gazette, 1901), pp. 209-210. Works numbers were 2252-2255 in March 1893.

Like the other 2-8-2s produced in the early 1890s, this quartet had few of the features that would make the Mikado one of the most widely produced freight locomotives in the 20th Century. Instead, the 101 and her sisters had narrow fireboxes, small boilers and cylinders, and small drivers, which accords with their description as "double-ender freight transfer" locomotives. Yet the trailing truck, while located behind the firebox, pivoted from a point under the firebox and was clearly meant to spread out weight and increase the locomotive's maximum possible curve radius.

They remained with the C&CT and its successors (Chicago Terminal Transfer-1897 and Baltimore & Ohio Chicago Terminal -1907) until they were retired and scrapped in 1917 (396) and 1919 (3). (103-104 were leased by the Wisconsin & Michigan from 1910-1912.)

Principal Dimensions by Steve Llanso of Sweat House Media
Locobase ID15,909
RailroadChicago & Calumet Terminal
Number in Class4
Road Numbers101-104/394-397
Number Built4
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)15 / 4.57
Engine Wheelbase (ft / m)30.50 / 9.30
Ratio of driving wheelbase to overall engine wheebase 0.49
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)120,000 / 54,431
Engine Weight (lbs / kg)148,000 / 67,132
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)50 / 25
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)51 / 1295
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)19" x 26" / 483x660
Tractive Effort (lbs / kg)28,158 / 12772.27
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.26
Heating Ability
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)25.70 / 2.39
Evaporative Heating Surface (sq ft / m2)
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)
Evaporative Heating Surface/Cylinder Volume
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4626
Same as above plus superheater percentage4626
Same as above but substitute firebox area for grate area
Power L1
Power MT

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Wes Barris