Standard Soapstone 2-4-2 "Columbian" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 5 (Locobase 12876)

Data from "Built for the Standard Soapstone Corporation," Tuesday, October 05, 2010. Image from ALCO Light Locomotive Parts and General Products Catalog No. 10057. Archived at American Locomotive Company Photos from the Joseph A. Smith Collection., last accessed 15 July 2011.

Specifications by Steve Llanso of Sweat House Media
Locobase ID12876
RailroadStandard Soapstone
Number in Class1
Road Numbers5
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase 6.25'
Engine Wheelbase20.33'
Ratio of driving wheelbase to overall engine wheebase 0.31
Overall Wheelbase (engine & tender)20.33'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers56000 lbs
Engine Weight76000 lbs
Tender Light Weight
Total Engine and Tender Weight76000 lbs
Tender Water Capacity1600 gals
Tender Fuel Capacity (oil/coal)1.5 tons
Minimum weight of rail (calculated)47 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter36"
Boiler Pressure180 psi
Cylinders (dia x stroke)13" x 20"
Tractive Effort14365 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.90
Heating Ability
Firebox Area53 sq. ft
Grate Area12 sq. ft
Evaporative Heating Surface577 sq. ft
Superheating Surface
Combined Heating Surface577 sq. ft
Evaporative Heating Surface/Cylinder Volume187.79
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2160
Same as above plus superheater percentage2160
Same as above but substitute firebox area for grate area9540
Power L12960
Power MT233.06

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