Germain y Sierra, contractors 0-4-2 Locomotives in Chile

Class Details by Steve Llanso of Sweat House Media

Class Gonzalo Urrejola (Locobase 20878)

Data from "Vulcan Iron Works Germain y Sierra Order Data and Photos" supplied in April 2021 by Allen Stanley from his extensive Rail Data Exchange collection; and "Vulcan Iron Works negatives 1971.210" finding aid downloaded from the Hagley Museum website at [], last accessed 25 April, 2021; and Martin Coombs, "Tipo 65 (1st & only batch), 0-4-2ST d/w 914mm 36", cyls. 305x406mm 12"x16", Chilean steam locomotives lists, Part 1 Broad Gauge locos (October 2020), p. 143 -available at [], last accessed 25 April 2021. Vulcan Iron WorksWorks numbers were 1885-1886 in April 1912 and 2182 in June 1913..

Unfortunately, the Vulcan specification did not include heating surface areas or grate area. Locobase estimated the grate area, but is willing to be corrected.

The G y S took delivery of the first two tanks--the second named Juan Castellon--were delivered to Valparaiso in April 1912 with Juan Luis Sanfuentes in 1913. When

Principal Dimensions by Steve Llanso of Sweat House Media

ClassGonzalo Urrejola
Locobase ID20878
RailroadGermain y Sierra, contractors
Number in Class3
Road Numbers1-3/640-642
Number Built3
BuilderVulcan Iron Works
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)5 / 1.52
Engine Wheelbase (ft / m)5 / 4.37
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m)5 / 4.37
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)40,000 / 18,144
Engine Weight (lbs / kg)10,000 / 4536
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)10,000 / 4536
Tender Water Capacity (gals / ML)850 / 3.22
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 0.80 / 0.70
Minimum weight of rail (calculated) (lb/yd / kg/m)33 / 16.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)36 / 914
Boiler Pressure (psi / kPa)165 / 11.70
High Pressure Cylinders (dia x stroke) (in / mm)12" x 16" / 305x406
Tractive Effort (lbs / kg)8976 / 4071.45
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.46
Heating Ability
Tubes (number - dia) (in / mm)98 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 9.38 / 2.86
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)11 / 1.02
Evaporative Heating Surface (sq ft / m2)
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)
Evaporative Heating Surface/Cylinder Volume
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1815
Same as above plus superheater percentage1815
Same as above but substitute firebox area for grate area
Power L1
Power MT

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