Wrightsville & Tennille 4-6-0 "Ten-wheeler" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 40 (Locobase 13152)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 34, p.180. Baldwin works numbers were 34527 in April 1910 and 36564 in May 1911.

Both locomotives were the last new engines to be bought by the W & T. 40 later operate on the Georgia Northern as their 101. 41 was sold to the Wadley Southern Railway, but retained its road number.

Class 51 (Locobase 11502)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 26, p. 242. Works numbers were 18692 in February 1901, 23771 in February 1904, and 31132 in June 1907.

After its service with the W & T, the 53 went to the Wadley Southern, another Georgia shortline. The 54 apparently remained on the W & T throughout its career.

Specifications by Steve Llanso of Sweat House Media
Locobase ID13,152 11,502
RailroadWrightsville & TennilleWrightsville & Tennille
Number in Class23
Road Numbers40-4151, 53-54
Number Built23
BuilderBaldwinBurnham, Williams & Co
Valve GearWalschaertStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)11.3311.33
Engine Wheelbase (ft)22.1721.58
Ratio of driving wheelbase to overall engine wheebase 0.51 0.53
Overall Wheelbase (engine & tender) (ft)51.08
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)99,70085,300
Engine Weight (lbs)128,500110,700
Tender Loaded Weight (lbs)90,00062,000
Total Engine and Tender Weight (lbs)218,500172,700
Tender Water Capacity (gals)45003000
Tender Fuel Capacity (oil/coal) (gals/tons)6
Minimum weight of rail (calculated) (lb/yd)5547
Geometry Relating to Tractive Effort
Driver Diameter (in)5756
Boiler Pressure (psi)180170
High Pressure Cylinders (dia x stroke) (in)18" x 26"17" x 24"
Tractive Effort (lbs)22,61217,897
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.41 4.77
Heating Ability
Firebox Area (sq ft)152146
Grate Area (sq ft)22.4022
Evaporative Heating Surface (sq ft)17171627
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)17171627
Evaporative Heating Surface/Cylinder Volume224.22258.05
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation40323740
Same as above plus superheater percentage40323740
Same as above but substitute firebox area for grate area27,36024,820
Power L155315931
Power MT366.91459.87

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