Vredenburgh Saw Mill Company 4-6-0 "Ten-wheeler" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 5 (Locobase 14055)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 45, p. 48. Works number was 40950 in November 1913.

This big Alabama sawmill in Vredenburgh appears several times in the journals of the day, often as the victim of yet another catastrophic fire. For example, Wood Craft magazine reported in November 1908 that the dry-kilns at its Pine Hill facility, which had been destroyed by fire, had been rebuilt with brick. Years later in February 1920, the namesake mill burned to the ground and was totally destroyed. Vredenburgh quickly rebuilt its mill and by the end of December 1921 was boasting of its enduring success in minimizing lost time due to machinery breakdowns.

This typical logging Ten-wheeler operated on the Vredenburgh rails for about 14 years before being sold to locomotive rebuilder/reseller Southern Iron & Equipment. SI & E in turn sold the engine in July 1928 to Tilghman Lumber. The Carolina Western took over the 5 later.

Specifications by Steve Llanso of Sweat House Media
Locobase ID14,055
RailroadVredenburgh Saw Mill Company
Number in Class1
Road Numbers5
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft)12.83
Engine Wheelbase (ft)23.15
Ratio of driving wheelbase to overall engine wheebase 0.55
Overall Wheelbase (engine & tender) (ft)47.85
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)75,000
Engine Weight (lbs)104,000
Tender Loaded Weight (lbs)80,000
Total Engine and Tender Weight (lbs)184,000
Tender Water Capacity (gals)4000
Tender Fuel Capacity (oil/coal) (gals/tons)7
Minimum weight of rail (calculated) (lb/yd)42
Geometry Relating to Tractive Effort
Driver Diameter (in)50
Boiler Pressure (psi)180
High Pressure Cylinders (dia x stroke) (in)16" x 24"
Tractive Effort (lbs)18,801
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.99
Heating Ability
Firebox Area (sq ft)93
Grate Area (sq ft)15
Evaporative Heating Surface (sq ft)1225
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)1225
Evaporative Heating Surface/Cylinder Volume219.34
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2700
Same as above plus superheater percentage2700
Same as above but substitute firebox area for grate area16,740
Power L14539
Power MT400.27

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