Compania Comercial y Salitera La Aguada 2-4-2 Locomotives in Chile


Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 12911)

Data from Baldwin Locomotive Works Specification for Engines, as digitized by the DeGolyer Library of Southern Methodist University Volume 28, p.215. Works numbers were 27257-27258 in January 1906.

This nitrate-mining company was based at La Aguada southwest of Santiago and Pisagua much farther north.

Principal Dimensions by Steve Llanso of Middle Run Media

Class1
Locobase ID12911
RailroadCompania Comercial y Salitera La Aguada
CountryChile
Whyte2-4-2ST
Number in Class2
Road Numbers1-2
Gauge2'6"
Number Built2
BuilderBurnham, Williams & Co
Year1906
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 5.50 / 1.68
Engine Wheelbase (ft / m)18.17 / 5.54
Ratio of driving wheelbase to overall engine wheelbase 0.30
Overall Wheelbase (engine & tender) (ft / m)18.17 / 5.54
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)26,400 / 11,975
Engine Weight (lbs / kg)40,320 / 18,289
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)40,320 / 18,289
Tender Water Capacity (gals / ML)500 / 1.89
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)22 / 11
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)37 / 940
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)10" x 16" / 254x406
Tractive Effort (lbs / kg)5881 / 2667.58
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.49
Heating Ability
Tubes (number - dia) (in / mm)70 - 1.5" / 38
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 9.50 / 2.90
Firebox Area (sq ft / m2)33.50 / 3.11
Grate Area (sq ft / m2) 7.70 / 0.72
Evaporative Heating Surface (sq ft / m2)292 / 27.13
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)292 / 27.13
Evaporative Heating Surface/Cylinder Volume200.76
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1232
Same as above plus superheater percentage1232
Same as above but substitute firebox area for grate area5360
Power L13117
Power MT520.59

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