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

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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. http://1.bp.blogspot.com/_bgDRKmnIMvo/TNF8cFVkgLI/AAAAAAAACa0/Qy0qJUQ0-ws/s1600/18f.jpg, last accessed 15 July 2011.

Specifications by Steve Llanso of Sweat House Media
Class5
Locobase ID12,876
RailroadStandard Soapstone
CountryUSA
Whyte2-4-2ST
Number in Class1
Road Numbers5
GaugeStd
Number Built1
BuilderAlco-Schenectady
Year1928
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 6.25 / 1.90
Engine Wheelbase (ft / m)20.33 / 6.20
Ratio of driving wheelbase to overall engine wheebase 0.31
Overall Wheelbase (engine & tender) (ft / m)20.33 / 6.20
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)56,000 / 25,401
Engine Weight (lbs / kg)76,000 / 34,473
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)76,000
Tender Water Capacity (gals / ML)1600 / 6.06
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT) 1.50 / 1.40
Minimum weight of rail (calculated) (lb/yd / kg/m)47 / 23.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)36 / 914
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)13" x 20" / 330x508
Tractive Effort (lbs / kg)14,365 / 6515.86
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.90
Heating Ability
Firebox Area (sq ft / m2)53 / 4.93
Grate Area (sq ft / m2)12 / 1.12
Evaporative Heating Surface (sq ft / m2)577 / 53.62
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)577 / 53.62
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