Empire Lumber Company / Enterprise Lumber Company 2-6-2 "Prairie" Locomotives in 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.

Principal Dimensions by Steve Llanso of Sweat House Media
Class14
Locobase ID14,045 13,952
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 Wheelbase (ft / m)8 / 2.448 / 2.44
Engine Wheelbase (ft / m)22.75 / 6.9322.75 / 6.93
Ratio of driving wheelbase to overall engine wheebase 0.35 0.35
Overall Wheelbase (engine & tender) (ft / m)46.08 / 14.0544.75 / 13.64
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)57,000 / 25,85556,500 / 25,628
Engine Weight (lbs / kg)78,100 / 35,42676,500 / 34,700
Tender Loaded Weight (lbs / kg)60,000 / 27,21644,000 / 19,958
Total Engine and Tender Weight (lbs / kg)138,100 / 62,642120,500 / 54,658
Tender Water Capacity (gals / ML)3000 / 11.362000 / 7.58
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)32 / 1631 / 15.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)44 / 111842 / 1067
Boiler Pressure (psi / kPa)180 / 12.40170 / 11.70
High Pressure Cylinders (dia x stroke) (in / mm)13" x 22" / 330x55913" x 22" / 330x559
Tractive Effort (lbs / kg)12,929 / 5864.5012,792 / 5802.36
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.41 4.42
Heating Ability
Firebox Area (sq ft / m2)74 / 6.8774 / 6.87
Grate Area (sq ft / m2)13.30 / 1.2413.30 / 1.24
Evaporative Heating Surface (sq ft / m2)767 / 71.26767 / 71.26
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)767 / 71.26767 / 71.26
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 area13,32012,580
Power L144414003
Power MT515.30468.59