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
Class4051
Locobase ID13152 11502
RailroadWrightsville & TennilleWrightsville & Tennille
CountryUSAUSA
Whyte4-6-04-6-0
Number in Class23
Road Numbers40-4151, 53-54
GaugeStdStd
Number Built23
BuilderBaldwinBurnham, Williams & Co
Year19101901
Valve GearWalschaertStephenson
Locomotive Length and Weight
Driver Wheelbase11.33'11.33'
Engine Wheelbase22.17'21.58'
Ratio of driving wheelbase to overall engine wheebase 0.51 0.53
Overall Wheelbase (engine & tender)51.08'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers99700 lbs85300 lbs
Engine Weight128500 lbs110700 lbs
Tender Light Weight90000 lbs62000 lbs
Total Engine and Tender Weight218500 lbs172700 lbs
Tender Water Capacity4500 gals3000 gals
Tender Fuel Capacity (oil/coal)6 tons tons
Minimum weight of rail (calculated)55 lb/yard47 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter57"56"
Boiler Pressure180 psi170 psi
Cylinders (dia x stroke)18" x 26"17" x 24"
Tractive Effort22612 lbs17897 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.41 4.77
Heating Ability
Firebox Area152 sq. ft146 sq. ft
Grate Area22.40 sq. ft22 sq. ft
Evaporative Heating Surface1717 sq. ft1627 sq. ft
Superheating Surface
Combined Heating Surface1717 sq. ft1627 sq. ft
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 area2736024820
Power L155315931
Power MT366.91459.87


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