Charleston Lumber Company 2-6-0 "Mogul" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 4 (Locobase 12976)

Data from DeGolyer, Volume 29, p. 96. Works number was 28369 in June 1906.

Specifications called for this wood-burner to haul 280 tons up a 1% grade on the Wiggins, South Carolina timber harvester's rails. The Charleston Mill later came under the Westmoreland Lumber Company's control and with it the 4. The 4 would later work for Hilton-Dodge Lumber.

Specifications by Steve Llanso of Sweat House Media
Locobase ID12,976
RailroadCharleston Lumber Company
Number in Class1
Road Numbers4
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)12
Engine Wheelbase (ft)18.83
Ratio of driving wheelbase to overall engine wheebase 0.64
Overall Wheelbase (engine & tender) (ft)41.17
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)48,000
Engine Weight (lbs)59,000
Tender Loaded Weight (lbs)50,000
Total Engine and Tender Weight (lbs)109,000
Tender Water Capacity (gals)2500
Tender Fuel Capacity (oil/coal) (gals/tons)
Minimum weight of rail (calculated) (lb/yd)27
Geometry Relating to Tractive Effort
Driver Diameter (in)42
Boiler Pressure (psi)160
High Pressure Cylinders (dia x stroke) (in)13" x 20"
Tractive Effort (lbs)10,945
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.39
Heating Ability
Firebox Area (sq ft)72
Grate Area (sq ft)11.70
Evaporative Heating Surface (sq ft)608
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)608
Evaporative Heating Surface/Cylinder Volume197.88
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1872
Same as above plus superheater percentage1872
Same as above but substitute firebox area for grate area11,520
Power L13529
Power MT486.26

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