Buenos Aires Western 2-6-0 Locomotives in Argentina


Class Details by Steve Llanso of Sweat House Media

Class 5 (Locobase 12195)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 20, p. 129. Works number was 14859-14860 in May 1896.

These Vauclain compound locomotives were fitted with relatively large 11 1/2" (292 mm) piston valves.

Principal Dimensions by Steve Llanso of Middle Run Media
Class5
Locobase ID12195
RailroadBuenos Aires Western
CountryArgentina
Whyte2-6-0
Number in Class2
Road Numbers5-6
Gauge5'6"
Number Built2
BuilderBurnham, Williams & Co
Year1896
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)11.75 / 3.58
Engine Wheelbase (ft / m)20.17 / 6.15
Ratio of driving wheelbase to overall engine wheelbase 0.58
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)81,368 / 36,908
Engine Weight (lbs / kg)100,632 / 45,646
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)3000 / 11.36
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)45 / 22.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)56 / 1422
Boiler Pressure (psi / kPa)180 / 1240
High Pressure Cylinders (dia x stroke) (in / mm)13" x 24" / 330x610
Low Pressure Cylinders (dia x stroke) (in / mm)22" x 24" / 559x610
Tractive Effort (lbs / kg)16,427 / 7451.17
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.95
Heating Ability
Tubes (number - dia) (in / mm)244 - 1.875" / 48
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)10.50 / 3.20
Firebox Area (sq ft / m2)95 / 8.83
Grate Area (sq ft / m2)21.50 / 2
Evaporative Heating Surface (sq ft / m2)1316 / 122.30
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1316 / 122.30
Evaporative Heating Surface/Cylinder Volume356.93
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3870
Same as above plus superheater percentage3870
Same as above but substitute firebox area for grate area17,100
Power L12850
Power MT231.66

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