Empire Lumber Company / Enterprise Lumber Company 2-6-2 "Prairie" Locomotives of the USA


Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 14045)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 45, p. 36. (Thanks to Chris Hohl for his December 2014 suggesting that Locobase include a tender's wood capacity.) Works number was 40959 in December 1913.

This wood-burning logging Prairie's tender could haul 3 cords of wood. went to Goldsboro, North Carolina. It was later joined by the Whiteville sister shown in Locobase 14046.


Class 4 (Locobase 13952)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 43, p. 254. Works number was 39326 in February 1913.

Intended for light track, this logging Prairie found a home on the 30-lb/yard (15-kg/metre) rail of this Andalusia, Ala timber company.

Specifications by Steve Llanso of Sweat House Media
Class14
Locobase ID14045 13952
RailroadEnterprise Lumber CompanyEmpire Lumber Company
CountryUSAUSA
Whyte2-6-22-6-2
Number in Class11
Road Numbers14
GaugeStdStd
Number Built11
BuilderBaldwinBaldwin
Year19131913
Valve GearStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase8'8'
Engine Wheelbase22.75'22.75'
Ratio of driving wheelbase to overall engine wheebase 0.35 0.35
Overall Wheelbase (engine & tender)46.08'44.75'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers57000 lbs56500 lbs
Engine Weight78100 lbs76500 lbs
Tender Light Weight60000 lbs44000 lbs
Total Engine and Tender Weight138100 lbs120500 lbs
Tender Water Capacity3000 gals2000 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)32 lb/yard31 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter44"42"
Boiler Pressure180 psi170 psi
Cylinders (dia x stroke)13" x 22"13" x 22"
Tractive Effort12929 lbs12792 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.41 4.42
Heating Ability
Firebox Area74 sq. ft74 sq. ft
Grate Area13.30 sq. ft13.30 sq. ft
Evaporative Heating Surface767 sq. ft767 sq. ft
Superheating Surface
Combined Heating Surface767 sq. ft767 sq. ft
Evaporative Heating Surface/Cylinder Volume226.94226.94
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation23942261
Same as above plus superheater percentage23942261
Same as above but substitute firebox area for grate area1332012580
Power L144414003
Power MT515.30468.59


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