Vredenburgh Saw Mill Company 4-6-0 "Ten-Wheeler" Locomotives in 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.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID14055
RailroadVredenburgh Saw Mill Company
Number in Class1
Road Numbers5
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)12.83 / 3.91
Engine Wheelbase (ft / m)23.15 / 7
Ratio of driving wheelbase to overall engine wheelbase 0.55
Overall Wheelbase (engine & tender) (ft / m)47.85 / 14.68
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)75,000 / 32,659
Engine Weight (lbs / kg)104,000 / 45,359
Tender Loaded Weight (lbs / kg)80,000 / 40,823
Total Engine and Tender Weight (lbs / kg)184,000 / 86,182
Tender Water Capacity (gals / ML)4000 / 17.05
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)7 / 6
Minimum weight of rail (calculated) (lb/yd / kg/m)42 / 21
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)50 / 1422
Boiler Pressure (psi / kPa)180 / 13.80
High Pressure Cylinders (dia x stroke) (in / mm)16" x 24" / 406x610
Tractive Effort (lbs / kg)18,801 / 8528.00
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.99
Heating Ability
Tubes (number - dia) (in / mm)178 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)12.23 / 3.73
Firebox Area (sq ft / m2)93 / 8.64
Grate Area (sq ft / m2)15 / 1.39
Evaporative Heating Surface (sq ft / m2)1225 / 113.85
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1225 / 113.85
Evaporative Heating Surface/Cylinder Volume219.14
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 L14535
Power MT399.92

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