Arkansas Lumber Company 4-6-0 "Ten-wheeler" Locomotives of 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.

Specifications by Steve Llanso of Sweat House Media
Locobase ID14054
RailroadArkansas Lumber Company
Number in Class1
Road Numbers17
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase11.75'
Engine Wheelbase22.17'
Ratio of driving wheelbase to overall engine wheebase 0.53
Overall Wheelbase (engine & tender)48.92'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers93200 lbs
Engine Weight123000 lbs
Tender Light Weight92000 lbs
Total Engine and Tender Weight215000 lbs
Tender Water Capacity4500 gals
Tender Fuel Capacity (oil/coal)7 tons
Minimum weight of rail (calculated)52 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter54"
Boiler Pressure200 psi
Cylinders (dia x stroke)17" x 24"
Tractive Effort21836 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.27
Heating Ability
Firebox Area147 sq. ft
Grate Area23.50 sq. ft
Evaporative Heating Surface1843 sq. ft
Superheating Surface
Combined Heating Surface1843 sq. ft
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 area29400
Power L17360
Power MT522.30

If you have any railroad data such as diagram books, rail station plans or anything else that you would be willing to share, please contact us.