Missouri & North Arkansas 2-8-0 "Consolidation" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 10 (Locobase 11409)

Data from 1903 MO & NA locomotive diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection. See also Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 29, p. 149. See Locobase 6638 for a short history of the road, including a discussion of the 1914 accident that took 43 lives. Works numbers were 31314, 31335-31338 in July 1907.

Specifications by Steve Llanso of Sweat House Media
Locobase ID11409
RailroadMissouri & North Arkansas
Number in Class5
Road Numbers10-14
Number Built5
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase15.33'
Engine Wheelbase23.67'
Ratio of driving wheelbase to overall engine wheebase 0.65
Overall Wheelbase (engine & tender)
Axle Loading (Maximum Weight per Axle)
Weight on Drivers164000 lbs
Engine Weight182000 lbs
Tender Light Weight120000 lbs
Total Engine and Tender Weight302000 lbs
Tender Water Capacity6000 gals
Tender Fuel Capacity (oil/coal)14 tons
Minimum weight of rail (calculated)68 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter56"
Boiler Pressure180 psi
Cylinders (dia x stroke)22" x 28"
Tractive Effort37026 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.43
Heating Ability
Firebox Area194.90 sq. ft
Grate Area34.90 sq. ft
Evaporative Heating Surface2792 sq. ft
Superheating Surface
Combined Heating Surface2792 sq. ft
Evaporative Heating Surface/Cylinder Volume226.64
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation6282
Same as above plus superheater percentage6282
Same as above but substitute firebox area for grate area35082
Power L15137
Power MT276.22

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