FC del Sud de Buenos Aires 4-4-0 Locomotives in Argentina


Class Details by Steve Llanso of Sweat House Media

Class 6E (Locobase 3746)

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

These were originally delivered to the FC Buenos Aires a Ensenada.


Class unknown (Locobase 20833)

Data from "Rolling Stock on the Great Southern Railway, Buenos Ayres", Engineer, Volume 23 (22 February 1867), p. 166.

At the time Engineer showed illustrations of the engine and its passenger carriages, the Sud extended from Buenos Ayres [sic] 78 miles (126 km) south to Chascomas making nine intermediate stops. Virtually all of the way ran level with just one section of 1 in 90 and easy curves. Rails weighed 90 lb/yard (45 kg/metre) and were laid on the ground with no ballast. Over this profile the RS tanks were tasked to take 21 wagons up 1 in 200 (0.5%) at 25 mph (40 kph).

Fuel was imported and thus coal economy was paramount and these engines were credited with consumption rates averaging 9-10 lb/mile (2.53-2.87 kg/km). Under the boiler, compensation levers equalized the bogie and the lead driving axle.

Principal Dimensions by Steve Llanso of Middle Run Media
Class6Eunknown
Locobase ID3746 20833
RailroadFC del Sud de Buenos Aires (FCS)FC del Sud de Buenos Aires (FCS)
CountryArgentinaArgentina
Whyte4-4-04-4-0T
Number in Class68
Road Numbers233-238
GaugeStd5'6"
Number Built68
BuilderKitson & CoRobert Stephenson & Co
Year18891865
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)58,576 / 26,57058,576 / 26,570
Engine Weight (lbs / kg)56,000 / 25,401
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)1600 / 6.06720 / 2.73
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 5.60 / 5
Minimum weight of rail (calculated) (lb/yd / kg/m)49 / 24.5049 / 24.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)54 / 137260 / 1524
Boiler Pressure (psi / kPa)152.30 / 1050120 / 830
High Pressure Cylinders (dia x stroke) (in / mm)18" x 26" / 457x66013" x 22" / 330x559
Tractive Effort (lbs / kg)20,195 / 9160.316321 / 2867.16
Factor of Adhesion (Weight on Drivers/Tractive Effort) 2.90 9.27
Heating Ability
Tubes (number - dia) (in / mm)143 - 1.875" / 48
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)10.42 / 3.1810.12 / 3.08
Firebox Area (sq ft / m2)64 / 5.95
Grate Area (sq ft / m2)18.90 / 1.76
Evaporative Heating Surface (sq ft / m2)1014 / 94.24758 / 70.42
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1014 / 94.24758 / 70.42
Evaporative Heating Surface/Cylinder Volume132.42224.28
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2878
Same as above plus superheater percentage2878
Same as above but substitute firebox area for grate area7680
Power L13827
Power MT288.07

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