Little River / Louisiana Railway 2-6-2 "Prairie" Locomotives of the USA


Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 12850)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 28, p. 148. Works number was 26583 in November 1905.

This logging Prairie was identical to the Trout Creek locomotives shown in Locobase 12739. The 1 was bought by the Grant Land and Lumber Company of Texarkana, Ark, which was formed to take over the interests held by William Buchanan. In 1912, the system was reorganized as Grant Timber & Manufacturing and the engine took road number 5.


Class 105 (Locobase 12738)

Data from DeGolyer, Volume 27, p. 168. Works number was 24862 in December 1904.

In the mid-1920s, the Little River sold this logging Prairie to locomotive rebuilder/reseller Georgia Car & Locomotive. GC&L's reconditioning led to the engine's beginning a second career in cypress harvesting. Wilson Cypress of Palatka, Fla bought the locomotive in March 1928 as their 100. Wilson sold the 100 to the Cummer Sons Cypress and that company scrapped in February 1959.


Class 8 (Locobase 13887)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 40, p. 130. Works number was 37049 in October 1911.

Not too long before the L Ry was reorganized by its owner Grant Timber & Manufacturing, it took delivery of this logging Prairie, which was about half again as large as the #1 of 1905 (Locobase 12850).

Note that the specs have a note about strengthening the equalizer beam back of the rear drivers; this problem shows up in several entries during this year. In addition, the equalizer fulcrum positioned between the main and rear driving axles also needed to be made wrot iron and of stronger section.

Locobase observes in 13886 that this recurring comment may have represented an earlier ill-considered design change.

Specifications by Steve Llanso of Sweat House Media
Class11058
Locobase ID12850 12738 13887
RailroadLouisiana RailwayLittle RiverLouisiana Railway
CountryUSAUSAUSA
Whyte2-6-22-6-22-6-2
Number in Class111
Road Numbers11058
GaugeStdStdStd
Number Built111
BuilderBurnham, Williams & CoBurnham, Williams & CoBaldwin
Year190519041911
Valve GearStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase 9.17' 9.17'10.33'
Engine Wheelbase23.75'23.75'26.58'
Ratio of driving wheelbase to overall engine wheebase 0.39 0.39 0.39
Overall Wheelbase (engine & tender)50.15'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers61000 lbs66000 lbs81000 lbs
Engine Weight83000 lbs87000 lbs109000 lbs
Tender Light Weight63000 lbs56000 lbs80000 lbs
Total Engine and Tender Weight146000 lbs143000 lbs189000 lbs
Tender Water Capacity3500 gals2800 gals4000 gals
Tender Fuel Capacity (oil/coal)8 tons
Minimum weight of rail (calculated)34 lb/yard37 lb/yard45 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter46"46"50"
Boiler Pressure180 psi180 psi180 psi
Cylinders (dia x stroke)15" x 20"15" x 20"16" x 24"
Tractive Effort14967 lbs14967 lbs18801 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.08 4.41 4.31
Heating Ability
Firebox Area82.20 sq. ft82 sq. ft108 sq. ft
Grate Area14.13 sq. ft14 sq. ft16.70 sq. ft
Evaporative Heating Surface991 sq. ft990 sq. ft1545 sq. ft
Superheating Surface
Combined Heating Surface991 sq. ft990 sq. ft1545 sq. ft
Evaporative Heating Surface/Cylinder Volume242.26242.02276.63
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation254325203006
Same as above plus superheater percentage254325203006
Same as above but substitute firebox area for grate area147961476019440
Power L1473047235600
Power MT512.85473.29457.25


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