Arkansas Lumber Company 4-6-0 "Ten-Wheeler" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 17 (Locobase 14054)

Data from Baldwin Negative 4978 as digitized by the DeGolyer Library of Southern Methodist University and archived at,320. Works number was 41296 in April 1914.

When the ALC had extracted more than 20 years of service out of this typical Baldwin logging Ten-wheeler, it sold it to the Reader Railroad of Reader, Arkansas. The Reader later sold the engine to Meriwether Gravel Company.

Principal Dimensions by Steve Llanso of Sweat House Media
Locobase ID14,054
RailroadArkansas Lumber Company
Number in Class1
Road Numbers17
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)11.75 / 3.58
Engine Wheelbase (ft / m)22.17 / 6.76
Ratio of driving wheelbase to overall engine wheebase 0.53
Overall Wheelbase (engine & tender) (ft / m)48.92 / 14.91
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)93,200 / 42,275
Engine Weight (lbs / kg)123,000 / 55,792
Tender Loaded Weight (lbs / kg)92,000 / 41,731
Total Engine and Tender Weight (lbs / kg)215,000 / 97,523
Tender Water Capacity (gals / ML)4500 / 17.05
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)7 / 6.40
Minimum weight of rail (calculated) (lb/yd / kg/m)52 / 26
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)54 / 1372
Boiler Pressure (psi / kPa)200 / 13.80
High Pressure Cylinders (dia x stroke) (in / mm)17" x 24" / 432x610
Tractive Effort (lbs / kg)21,836 / 9904.65
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.27
Heating Ability
Firebox Area (sq ft / m2)147 / 13.66
Grate Area (sq ft / m2)23.50 / 2.18
Evaporative Heating Surface (sq ft / m2)1843 / 171.22
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1843 / 171.22
Evaporative Heating Surface/Cylinder Volume292.31
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4700
Same as above plus superheater percentage4700
Same as above but substitute firebox area for grate area29,400
Power L17360
Power MT522.30

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Wes Barris