Lyon Cypress Lumber Company 2-6-0 "Mogul" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 5 (Locobase 13140)

Data from Baldwin Locomotive Works Specification for Engines, 1890, as digitized by the DeGolyer Library of Southern Methodist University Volume 30, p. 236. Works number was 30954 in May 1907.

LCLC bought this logging Mogul to serve the logging roads that exploited the cypress stands in Livingston Parish, Louisiana. By 1915, the Garyville company had harvested the last of the cypress, renamed the line Lyon Lumber and turned to hardwood and pine. According to a 1916 Poor's Manual of Industrials (Volume 7, p. 1936), Lyon Lumber extracted timber from their own land in Livingston, Ascension, St. James, St. John the Baptist, St. Helena and Tangipahoa Parishes, La. Mills located at Garyville, La., have a daily capacity of 300,000 ft. Annual production, about 70,000,000 ft.

Principal Dimensions by Steve Llanso of Middle Run Media

Locobase ID13140
RailroadLyon Cypress Lumber Company
Number in Class1
Road Numbers5
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)11 / 3.35
Engine Wheelbase (ft / m)17.67 / 5.39
Ratio of driving wheelbase to overall engine wheelbase 0.62
Overall Wheelbase (engine & tender) (ft / m)45.58 / 13.89
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)61,000 / 27,669
Engine Weight (lbs / kg)72,000 / 32,659
Tender Loaded Weight (lbs / kg)45,000 / 20,412
Total Engine and Tender Weight (lbs / kg)117,000 / 53,071
Tender Water Capacity (gals / ML)2000 / 7.58
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)34 / 17
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)44 / 1118
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)14" x 22" / 356x559
Tractive Effort (lbs / kg)13,328 / 6045.49
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.58
Heating Ability
Tubes (number - dia) (in / mm)150 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)9 / 2.74
Firebox Area (sq ft / m2)76 / 7.06
Grate Area (sq ft / m2)14.40 / 1.34
Evaporative Heating Surface (sq ft / m2)776 / 72.12
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)776 / 72.12
Evaporative Heating Surface/Cylinder Volume197.96
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2304
Same as above plus superheater percentage2304
Same as above but substitute firebox area for grate area12,160
Power L13460
Power MT375.15

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