United States Portland Cement Company 0-4-2 Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 6 (Locobase 12877)

Data from "Built for the United States Portland Cement Company," Saturday, October 02, 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. Works number was 61838 in May 1920.

After operating for the SPCCC in Concrete, Colo, the 6 was sold in 1927 to the Ideal Cement Company in (how fitting) Portland, Colo.

Specifications by Steve Llanso of Sweat House Media
Locobase ID12877
RailroadUnited States Portland Cement Company
Number in Class1
Road Numbers6
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase7'
Engine Wheelbase15.08'
Ratio of driving wheelbase to overall engine wheebase 0.46
Overall Wheelbase (engine & tender)15.08'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers78000 lbs
Engine Weight88000 lbs
Tender Light Weight
Total Engine and Tender Weight88000 lbs
Tender Water Capacity1700 gals
Tender Fuel Capacity (oil/coal)1.5 tons
Minimum weight of rail (calculated)65 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter40"
Boiler Pressure190 psi
Cylinders (dia x stroke)14" x 22"
Tractive Effort17410 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.48
Heating Ability
Firebox Area60 sq. ft
Grate Area16.20 sq. ft
Evaporative Heating Surface740 sq. ft
Superheating Surface
Combined Heating Surface740 sq. ft
Evaporative Heating Surface/Cylinder Volume188.79
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 area11400
Power L13361
Power MT189.99

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