Chicago, Memphis & Gulf 2-6-0 "Mogul" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 5 (Locobase 13879)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 40, p. 1. Works number was 37229 in December 1911.

Originally built as the Dyersburg Northern in wesstern Tennessee, the road connected Dyersburg (about 75 miles northeast of Memphis) with Tiptonville on the Mississippi. When the DN was reorganized as the CM & G in 1909, construction continued northward to Hickman, Ky for a total distance of 49 miles and another port on the eastern bank of the Mississippi.

In the event, the line never reached Chicago, Memphis, or the Gulf under its own herald. In 1913, the Illinois Central bought up all of the CM & G's preferred and common stock. The IC renumbered the 5 as 521 and presumably left it to operate on the CM & G alignment until July 1928, when 521 was sold to locomotive rebuilder/reseller Briggs & Turivas.

Specifications by Steve Llanso of Sweat House Media
Locobase ID13,879
RailroadChicago, Memphis & Gulf
Number in Class1
Road Numbers5
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)12
Engine Wheelbase (ft)20.25
Ratio of driving wheelbase to overall engine wheebase 0.59
Overall Wheelbase (engine & tender) (ft)
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)105,000
Engine Weight (lbs)122,000
Tender Loaded Weight (lbs)80,000
Total Engine and Tender Weight (lbs)202,000
Tender Water Capacity (gals)4000
Tender Fuel Capacity (oil/coal) (gals/tons)6
Minimum weight of rail (calculated) (lb/yd)58
Geometry Relating to Tractive Effort
Driver Diameter (in)50
Boiler Pressure (psi)180
High Pressure Cylinders (dia x stroke) (in)19" x 24"
Tractive Effort (lbs)26,512
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.96
Heating Ability
Firebox Area (sq ft)148
Grate Area (sq ft)22.70
Evaporative Heating Surface (sq ft)1618
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)1618
Evaporative Heating Surface/Cylinder Volume205.44
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4086
Same as above plus superheater percentage4086
Same as above but substitute firebox area for grate area26,640
Power L14491
Power MT282.88

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