John L Roper Lumber Company 2-8-0 "Consolidation" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 105 (Locobase 14962)

Data from DeGolyer, Volume 65, pp. 243+. Works number was 53695 in September 1920.

Locobase 13177 describes JLRLC's large timber business and shows a Mogul that served the 150 miles (242 km) of logging roads. This logging Consolidation followed that engine and a Baldwin Prairie.

The 105 was later sold to Arkansas Land and Lumber. AL&L sold it to Sumter Lumber Company in Sumter, SC.

Principal Dimensions by Steve Llanso of Sweat House Media
Locobase ID14,962
RailroadJohn L Roper Lumber Company
Number in Class1
Road Numbers105
Number Built1
Valve GearSouthern
Locomotive Length and Weight
Driver Wheelbase (ft / m)14.50 / 4.42
Engine Wheelbase (ft / m)22.33 / 6.81
Ratio of driving wheelbase to overall engine wheebase 0.65
Overall Wheelbase (engine & tender) (ft / m)51.58 / 15.72
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)110,400 / 50,077
Engine Weight (lbs / kg)126,500 / 57,380
Tender Loaded Weight (lbs / kg)90,000 / 40,823
Total Engine and Tender Weight (lbs / kg)216,500 / 98,203
Tender Water Capacity (gals / ML)4500 / 17.05
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)7 / 6.40
Minimum weight of rail (calculated) (lb/yd / kg/m)46 / 23
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)48 / 1219
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)19" x 24" / 483x610
Tractive Effort (lbs / kg)27,617 / 12526.88
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.00
Heating Ability
Firebox Area (sq ft / m2)114 / 10.59
Grate Area (sq ft / m2)26.20 / 2.43
Evaporative Heating Surface (sq ft / m2)1601 / 148.74
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1601 / 148.74
Evaporative Heating Surface/Cylinder Volume203.28
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4716
Same as above plus superheater percentage4716
Same as above but substitute firebox area for grate area20,520
Power L13969
Power MT317.03

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Wes Barris