FC Gran Oeste Argentino 2-6-0 Locomotives in Argentina


Class Details by Steve Llanso of Sweat House Media

Class 78 (Locobase 3726)

Data from "Argentine Great Western Railway Type 2.6.0", Locomotives Constructed by Kitson & Co, Limited (n.d.). Kitson works numbers were 4052-4061 in 1900 and 4112-4118 in 1902. Beyer Peacock works numbers 4418-4427 in 1902.

These were mixed-traffic simple-expansion engines

Principal Dimensions by Steve Llanso of Middle Run Media
Class78
Locobase ID3726
RailroadFC Gran Oeste Argentino (FCGOA)
CountryArgentina
Whyte2-6-0
Number in Class27
Road Numbers78-104
Gauge5'6"
Number Built27
Builderseveral
Year1900
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)11.75 / 3.58
Engine Wheelbase (ft / m)19.92 / 6.07
Ratio of driving wheelbase to overall engine wheelbase 0.59
Overall Wheelbase (engine & tender) (ft / m)39.25 / 11.96
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)81,088 / 36,781
Engine Weight (lbs / kg)103,488 / 46,941
Tender Loaded Weight (lbs / kg)72,128 / 32,717
Total Engine and Tender Weight (lbs / kg)175,616 / 79,658
Tender Water Capacity (gals / ML)2706 / 10.25
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)5 / 4.50
Minimum weight of rail (calculated) (lb/yd / kg/m)45 / 22.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)62 / 1575
Boiler Pressure (psi / kPa)170 / 1170
High Pressure Cylinders (dia x stroke) (in / mm)17.5" x 24" / 445x610
Tractive Effort (lbs / kg)17,130 / 7770.05
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.73
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)10.75 / 3.28
Firebox Area (sq ft / m2)87 / 8.08
Grate Area (sq ft / m2)20.40 / 1.90
Evaporative Heating Surface (sq ft / m2)1092 / 101.45
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1092 / 101.45
Evaporative Heating Surface/Cylinder Volume163.44
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3468
Same as above plus superheater percentage3468
Same as above but substitute firebox area for grate area14,790
Power L14015
Power MT327.48

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