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
Class6
Locobase ID12,877
RailroadUnited States Portland Cement Company
CountryUSA
Whyte0-4-2ST
Number in Class1
Road Numbers6
GaugeStd
Number Built1
BuilderAlco-Cooke
Year1920
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft)7
Engine Wheelbase (ft)15.08
Ratio of driving wheelbase to overall engine wheebase 0.46
Overall Wheelbase (engine & tender) (ft)15.08
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)78,000
Engine Weight (lbs)88,000
Tender Loaded Weight (lbs)
Total Engine and Tender Weight (lbs)88,000
Tender Water Capacity (gals)1700
Tender Fuel Capacity (oil/coal) (gals/tons) 1.50
Minimum weight of rail (calculated) (lb/yd)65
Geometry Relating to Tractive Effort
Driver Diameter (in)40
Boiler Pressure (psi)190
High Pressure Cylinders (dia x stroke) (in)14" x 22"
Tractive Effort (lbs)17,410
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.48
Heating Ability
Firebox Area (sq ft)60
Grate Area (sq ft)16.20
Evaporative Heating Surface (sq ft)740
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)740
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 area11,400
Power L13361
Power MT189.99


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