Greenleaf Johnson Lumber Company 2-6-0 "Mogul" Locomotives in 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.

Principal Dimensions by Steve Llanso of Sweat House Media

Class8
Locobase ID13005
RailroadGreenleaf Johnson Lumber Company
CountryUSA
Whyte2-6-0
Number in Class1
Road Numbers8
Gauge3'6"
Number Built1
BuilderBurnham, Williams & Co
Year1906
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)10.50 / 3.20
Engine Wheelbase (ft / m)18 / 5.49
Ratio of driving wheelbase to overall engine wheelbase 0.58
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)60,000 / 27,216
Engine Weight (lbs / kg)70,000 / 31,752
Tender Loaded Weight (lbs / kg)50,000 / 22,680
Total Engine and Tender Weight (lbs / kg)120,000 / 54,432
Tender Water Capacity (gals / ML)2500 / 9.47
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)33 / 16.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)42 / 1067
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)14" x 22" / 356x559
Tractive Effort (lbs / kg)13,963 / 6333.52
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.30
Heating Ability
Tubes (number - dia) (in / mm)200 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 9.67 / 2.95
Firebox Area (sq ft / m2)83.50 / 7.76
Grate Area (sq ft / m2)15.50 / 1.44
Evaporative Heating Surface (sq ft / m2)962 / 89.41
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)962 / 89.41
Evaporative Heating Surface/Cylinder Volume245.41
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 L13941
Power MT434.42

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