Ouachita Valley Railway 2-8-0 "Consolidation" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 5 (Locobase 13708)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 36, p. 115. See also the Tap Line Case summaries at http://www.ttarchive.com/library/Articles/TapLineCase_OachitaValley.html and the Arkansas Tap Line's web page at http://peace.saumag.edu/swark/articles/ahq/arkansas/taplines/taplines339.html, last accessed 10 January 2012. Works number was 34994 in July 1910.

Freeman-Smith Lumber Company bought this little Ten-wheeler for its Arkansas operation, which included a 28-mile main line from Millville, where it linked to the Cotton Belt, southeast to Stark, where it met the Rock Island. The ICC's Tap Line Case summary notes that only 430 tons of freight in 1912 were not directly connected to the lumber company's logging operations. Morover, the train rode on 30-lb (15-kg/metre) rail.

The Arkansas Tap Line summary notes that the ICC nevertheless pronounced the OVRwy a common carrier and noted critically that the rate charged to the Rock Island was substantially more favorable than the one made available to the Cotton Belt.

The OV Rwy responded to the decision by restructuring itself as an industrial road.

The Ouachita Valley's parent would later sell the 5 to the Ogemaw Lumber Company in Arkansas in 1920. OLC operated the 5 until at least 1934.

Specifications by Steve Llanso of Sweat House Media
Locobase ID13708
RailroadOuachita Valley Railway
Number in Class1
Road Numbers5
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase12.50'
Engine Wheelbase19.33'
Ratio of driving wheelbase to overall engine wheebase 0.65
Overall Wheelbase (engine & tender)
Axle Loading (Maximum Weight per Axle)
Weight on Drivers75000 lbs
Engine Weight85000 lbs
Tender Light Weight70000 lbs
Total Engine and Tender Weight155000 lbs
Tender Water Capacity3500 gals
Tender Fuel Capacity (oil/coal)6 tons
Minimum weight of rail (calculated)31 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter44"
Boiler Pressure175 psi
Cylinders (dia x stroke)16" x 22"
Tractive Effort19040 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.94
Heating Ability
Firebox Area92 sq. ft
Grate Area16.60 sq. ft
Evaporative Heating Surface972 sq. ft
Superheating Surface
Combined Heating Surface972 sq. ft
Evaporative Heating Surface/Cylinder Volume189.86
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2905
Same as above plus superheater percentage2905
Same as above but substitute firebox area for grate area16100
Power L13590
Power MT422.11

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