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

Class Details by Steve Llanso of Sweat House Media

Class 8 (Locobase 13005)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 29, p 177. Works number was 29037 in September 1906.

GJLC operated 27 miles in a relatively gentle landscape in Bertie County, North Carolina, at least as far as the line's layout went. The specifications noted that grades amounted to 1%-1 1/4% and curves measured 10 degrees in radius (350 feet). This little Mogul was expected to haul 310 tons up the 1% grade.

Specifications by Steve Llanso of Sweat House Media
Locobase ID13,005
RailroadGreenleaf Johnson Lumber Company
Number in Class1
Road Numbers8
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)10.50
Engine Wheelbase (ft)18
Ratio of driving wheelbase to overall engine wheebase 0.58
Overall Wheelbase (engine & tender) (ft)
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)60,000
Engine Weight (lbs)70,000
Tender Loaded Weight (lbs)50,000
Total Engine and Tender Weight (lbs)120,000
Tender Water Capacity (gals)2500
Tender Fuel Capacity (oil/coal) (gals/tons)
Minimum weight of rail (calculated) (lb/yd)33
Geometry Relating to Tractive Effort
Driver Diameter (in)42
Boiler Pressure (psi)160
High Pressure Cylinders (dia x stroke) (in)14" x 22"
Tractive Effort (lbs)13,963
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.30
Heating Ability
Firebox Area (sq ft)83.50
Grate Area (sq ft)15.50
Evaporative Heating Surface (sq ft)962
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)962
Evaporative Heating Surface/Cylinder Volume245.43
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2480
Same as above plus superheater percentage2480
Same as above but substitute firebox area for grate area13,360
Power L13942
Power MT434.53

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