Tremont & Gulf 4-4-0 "American" Locomotives in 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.

Principal Dimensions by Steve Llanso of Sweat House Media
Locobase ID12,894
RailroadTremont & Gulf
Number in Class1
Road Numbers50
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 8.50 / 2.59
Engine Wheelbase (ft / m)22.58 / 6.88
Ratio of driving wheelbase to overall engine wheebase 0.38
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)76,000 / 34,473
Engine Weight (lbs / kg)113,000 / 51,256
Tender Loaded Weight (lbs / kg)80,000 / 36,287
Total Engine and Tender Weight (lbs / kg)193,000 / 87,543
Tender Water Capacity (gals / ML)4000 / 15.15
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)6
Minimum weight of rail (calculated) (lb/yd / kg/m)63 / 31.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)68 / 1727
Boiler Pressure (psi / kPa)190 / 13.10
High Pressure Cylinders (dia x stroke) (in / mm)18" x 24" / 457x610
Tractive Effort (lbs / kg)18,468 / 8376.95
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.12
Heating Ability
Firebox Area (sq ft / m2)126.50 / 11.76
Grate Area (sq ft / m2)26 / 2.42
Evaporative Heating Surface (sq ft / m2)1740 / 161.71
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1740 / 161.71
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 area24,035
Power L17227
Power MT419.28

All material Copyright ©
Wes Barris