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

Class Details by Steve Llanso of Sweat House Media

Class 50 (Locobase 12894)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 41, p. 200. (Thanks to Chris Hohl for his 20 April 2015 email reporting the tender's fuel capacity.) Works number was 38054 in July 1912.

In the specifications for this Eight-wheeler, the M&NA is given as the railroad that ordered the engine just months after an earlier #1 was diverted to the Missouri & North Arkansas as their 23 (Locobase 13268). But apparently because the railroad had taken advantage of the earlier engine's availability, the second 1 was sold to the Tremont & Gulf as their #50.

The T&G held onto the locomotive until the year matched the road number in 1950.

Specifications by Steve Llanso of Sweat House Media
Locobase ID12894
RailroadTremont & Gulf
Number in Class1
Road Numbers50
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase 8.50'
Engine Wheelbase22.58'
Ratio of driving wheelbase to overall engine wheebase 0.38
Overall Wheelbase (engine & tender)
Axle Loading (Maximum Weight per Axle)
Weight on Drivers76000 lbs
Engine Weight113000 lbs
Tender Light Weight80000 lbs
Total Engine and Tender Weight193000 lbs
Tender Water Capacity4000 gals
Tender Fuel Capacity (oil/coal)6 tons
Minimum weight of rail (calculated)63 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter68"
Boiler Pressure190 psi
Cylinders (dia x stroke)18" x 24"
Tractive Effort18468 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.12
Heating Ability
Firebox Area126.50 sq. ft
Grate Area26 sq. ft
Evaporative Heating Surface1740 sq. ft
Superheating Surface
Combined Heating Surface1740 sq. ft
Evaporative Heating Surface/Cylinder Volume246.16
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4940
Same as above plus superheater percentage4940
Same as above but substitute firebox area for grate area24035
Power L17227
Power MT419.28

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.