Gainesville & Gulf 4-4-0 "American" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 6 (Locobase 16235)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 21, p. 54 Works numbers were 15464 in August 1897.

Essentially identical to the Detroit & Lima Northern delivered a few months earlier (Locobase 16233), this wood-burning Eight-wheeler had smaller drivers, higher boiler pressure, and a larger tender.

Formerly the Gainesville Rocky Point & Micanopy, the G&G emerged in 1895 after reorganization. It was reorganized again as the Tampa & Jacksonville in 1907. A few years later, the locomotive apparently went to locomotive rebuilder/reseller Southern Iron & Equipment for a rebuild, but remained with the T& J. In 1927, the T&J was once again renamed, this time as Gainesville, Rocky Point & Micanopy.

The 100 remained on the road through all of the changes and was only scrapped after the GRP&M was abandoned in 1944.

Specifications by Steve Llanso of Sweat House Media
Locobase ID16235
RailroadGainesville & Gulf
Number in Class1
Road Numbers100
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase 8.50'
Engine Wheelbase22.75'
Ratio of driving wheelbase to overall engine wheebase 0.37
Overall Wheelbase (engine & tender)
Axle Loading (Maximum Weight per Axle)
Weight on Drivers56000 lbs
Engine Weight85000 lbs
Tender Light Weight70000 lbs
Total Engine and Tender Weight155000 lbs
Tender Water Capacity3500 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)47 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter56"
Boiler Pressure190 psi
Cylinders (dia x stroke)16" x 24"
Tractive Effort17719 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.16
Heating Ability
Firebox Area118.90 sq. ft
Grate Area16.50 sq. ft
Evaporative Heating Surface1159 sq. ft
Superheating Surface
Combined Heating Surface1159 sq. ft
Evaporative Heating Surface/Cylinder Volume207.52
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3135
Same as above plus superheater percentage3135
Same as above but substitute firebox area for grate area22591
Power L15568
Power MT438.40

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.