Wrightsville & Tennille 4-4-0 "American" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 9 (Locobase 7937)

Data from CofGa 12 - 1925 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Works number was 23233 in November 1903. See Rail Georgia's excellent "biography" of the W & T.

This Georgia railroad often bought locomotives from railroads such as the Central of Georgia when those bigger operations no longer needed such relatively dinky engines. In this case, however, Baldwin delivered an Eight-wheeler to the W & T, which at the time was a 75-mile line that had Tennille at one end and dipped down and to the West well past Wrightsville and through Dublin to Hawkinsville at the other. The "Wiggle and Twist" earned its nickname for its curvy alignment.

The W & T operated the #9 for 20 years, then sold it to the C of Ga, which ran it for another 11 years before scrapping it in November 1934.

Specifications by Steve Llanso of Sweat House Media
Locobase ID7937
RailroadWrightsville & Tennille
Number in Class1
Road Numbers9 / 1587 / 355
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase 9.08'
Engine Wheelbase23.92'
Ratio of driving wheelbase to overall engine wheebase 0.38
Overall Wheelbase (engine & tender)46.45'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers72000 lbs
Engine Weight112000 lbs
Tender Light Weight62000 lbs
Total Engine and Tender Weight174000 lbs
Tender Water Capacity3000 gals
Tender Fuel Capacity (oil/coal)7 tons
Minimum weight of rail (calculated)60 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter62"
Boiler Pressure160 psi
Cylinders (dia x stroke)18" x 24"
Tractive Effort17057 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.22
Heating Ability
Firebox Area148 sq. ft
Grate Area18.60 sq. ft
Evaporative Heating Surface1650 sq. ft
Superheating Surface
Combined Heating Surface1650 sq. ft
Evaporative Heating Surface/Cylinder Volume233.43
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2976
Same as above plus superheater percentage2976
Same as above but substitute firebox area for grate area23680
Power L15590
Power MT342.33

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.