4-4-0 Steam Locomotives in Argentina

FC Oeste de Buenos Aires


Class Details by Steve Llanso of Sweat House Media

Class 12 (Locobase 3730)

Data provided by Carlos Alberto Fern+ndez Priotti in Bryan Attewell ([] Steam Locomotive simulator program (April 2000).

Compare to the Baldwins delivered to the FCO 5 years earlier, which were probably built for the same service.

Principal Dimensions by Steve Llanso of Middle Run Media
Class12
Locobase ID3730
RailroadFC Oeste de Buenos Aires
CountryArgentina
Whyte4-4-0
Number in Class2
Road Numbers12-13
Gauge5'6"
Number Built2
BuilderSharp, Stewart
Year1902
Valve Gear
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)68,096 / 30,888
Engine Weight (lbs / kg)
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)4 / 4
Minimum weight of rail (calculated) (lb/yd / kg/m)57 / 28.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)72 / 1829
Boiler Pressure (psi / kPa)168.20 / 1160
High Pressure Cylinders (dia x stroke) (in / mm)18" x 24" / 457x610
Tractive Effort (lbs / kg)15,441 / 7003.93
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.41
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)11 / 3.35
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)22.70 / 2.11
Evaporative Heating Surface (sq ft / m2)1281 / 119.05
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1281 / 119.05
Evaporative Heating Surface/Cylinder Volume181.22
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3818
Same as above plus superheater percentage3818
Same as above but substitute firebox area for grate area
Power L1
Power MT

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