J F Darby Lumber Company 4-6-0 "Ten-wheeler" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 167 (Locobase 14699)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 62, p. 327+. Works number was 52922 in January 1920.

This logging Ten-wheeler was sold in March 1927 to locomotive rebuilder/reseller Georgia Car & Locomotive, which sold it in October 1928 to Groveland, Florida's J Ray Arnold. The lumber company later sold it to the Macon, Dublin & Savannah, which was then part of the Seaboard Air Line.

Specifications by Steve Llanso of Sweat House Media
Locobase ID14699
RailroadJ F Darby Lumber Company
Number in Class1
Road Numbers167 / 110
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase11.33'
Engine Wheelbase22.17'
Ratio of driving wheelbase to overall engine wheebase 0.51
Overall Wheelbase (engine & tender)50.08'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers98500 lbs
Engine Weight126500 lbs
Tender Light Weight100000 lbs
Total Engine and Tender Weight226500 lbs
Tender Water Capacity5000 gals
Tender Fuel Capacity (oil/coal)8 tons
Minimum weight of rail (calculated)55 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter57"
Boiler Pressure185 psi
Cylinders (dia x stroke)18" x 26"
Tractive Effort23240 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.24
Heating Ability
Firebox Area127 sq. ft
Grate Area25.10 sq. ft
Evaporative Heating Surface1783 sq. ft
Superheating Surface
Combined Heating Surface1783 sq. ft
Evaporative Heating Surface/Cylinder Volume232.84
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4644
Same as above plus superheater percentage4644
Same as above but substitute firebox area for grate area23495
Power L15550
Power MT372.66

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