Louisiana & Arkansas 2-8-0 "Consolidation" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 201 (Locobase 16006)

Data from Louisiana & Arkansas 1 - 1941 Locomotive Diagrams supplied in August 2013 by Allen Stanley from his extensive Raildata collection.

Originally delivered to the Colorado Midland as Vauclain compounds (Locobase 12470), this class of Consolidations was converted to simple expansion in 1908. Locobase cannot say when the 201s were superheated, so the date given is an estimate. The superheater heating surface area is an estimate as that figure doesn't appear in the diagram. It is based on other Consolidations of similar vintage with identical flue counts, diameters, and lengths.

After the CM closed in 1918, the quintet went to the Louisiana & Arkansas, taking numbers 429, 425-428.

All but 425 were scrapped in 1933-1934. For some reason the 425 wasn't discarded until February 1949, when it was sold to the Comite Southern, a recently formed industrial line connecting a gravel pit to the docks. 425 was scrapped in 1951.

Specifications by Steve Llanso of Sweat House Media
Locobase ID16006
RailroadLouisiana & Arkansas
Number in Class5
Road Numbers429, 425-539
Number Built
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase15.75'
Engine Wheelbase24.33'
Ratio of driving wheelbase to overall engine wheebase 0.65
Overall Wheelbase (engine & tender)59.98'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers159000 lbs
Engine Weight182000 lbs
Tender Light Weight136000 lbs
Total Engine and Tender Weight318000 lbs
Tender Water Capacity6000 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)66 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter60"
Boiler Pressure200 psi
Cylinders (dia x stroke)21" x 30"
Tractive Effort37485 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.24
Heating Ability
Firebox Area172.20 sq. ft
Grate Area35 sq. ft
Evaporative Heating Surface2181 sq. ft
Superheating Surface366 sq. ft
Combined Heating Surface2547 sq. ft
Evaporative Heating Surface/Cylinder Volume181.35
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation7000
Same as above plus superheater percentage7980
Same as above but substitute firebox area for grate area39262
Power L110537
Power MT584.40

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