Marietta & North Georgia 2-8-0 "Consolidation" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 25 (Locobase 12056)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 18, p 124. Works number was 13108 in December 1892

This lone Vauclain compound Consolidation went with the M&NG when it was transformed into the Atlanta, Knoxville & Northern. In 1898, the 25 was sold to the Texas Central and renumbered 112; it was renumbered 681 when the TC was absorbed by the Missouri-Kansas-Texas. In 1914, the Katy rebuilt the engine with 19" x 24" simple-expanson cylinders.

Specifications by Steve Llanso of Sweat House Media
Locobase ID12056
RailroadMarietta & North Georgia
Number in Class1
Road Numbers25
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase13.67'
Engine Wheelbase21.58'
Ratio of driving wheelbase to overall engine wheebase 0.63
Overall Wheelbase (engine & tender)
Axle Loading (Maximum Weight per Axle)
Weight on Drivers106000 lbs
Engine Weight120000 lbs
Tender Light Weight
Total Engine and Tender Weight
Tender Water Capacity3500 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)44 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter50"
Boiler Pressure180 psi
High Pressure Cylinders (dia x stroke)13" x 24"
Low Pressure Cylinders (dia x stroke)22" x 24" (2)
Tractive Effort18398 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.76
Heating Ability
Firebox Area142.40 sq. ft
Grate Area17.10 sq. ft
Evaporative Heating Surface1726 sq. ft
Superheating Surface
Combined Heating Surface1726 sq. ft
Evaporative Heating Surface/Cylinder Volume468.13
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3078
Same as above plus superheater percentage3078
Same as above but substitute firebox area for grate area25632
Power L13463
Power MT288.10

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