Entre Rios 2-8-0 Locomotives in Argentina

Class Details by Steve Llanso of Sweat House Media

Class 501 (Locobase 12906)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 28, p.203. Works numbers were 27212-27216 in January 1906 and 34103 in December 1912.

By the time the Entre Rios bought these Consolidation from Baldwin, its ownership had long since changed from the indigenous Central Entrerriano to a British-financed company. From the 379 miles owned by the government in 1892, the FCER had taken over the Primer Entrerriano's Gualeguay Central to Puerto Riaz and opened the Villaguay to Concordia branch. Total mileage topped 700 miles and would grow still more.

A sixth 2-8-0 would arrive in 1910. This one contained a Baldwin smokebox superheater that was credited with 204 sq ft of superheater surface. In fact, the apparatus did not add much heat to the steam and was nothing like as efficient as the Schmidt flue-based system.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID12906
RailroadEntre Rios
Number in Class6
Road Numbers501-506
Number Built6
BuilderBurnham, Williams & Co
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)13.50 / 4.11
Engine Wheelbase (ft / m)20.67 / 6.30
Ratio of driving wheelbase to overall engine wheelbase 0.65
Overall Wheelbase (engine & tender) (ft / m)45.96 / 14.01
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)97,000 / 43,999
Engine Weight (lbs / kg)110,000 / 49,895
Tender Loaded Weight (lbs / kg)90,000 / 40,823
Total Engine and Tender Weight (lbs / kg)200,000 / 90,718
Tender Water Capacity (gals / ML)4800 / 18.18
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)40 / 20
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)50 / 1270
Boiler Pressure (psi / kPa)190 / 13.10
High Pressure Cylinders (dia x stroke) (in / mm)18" x 24" / 457x610
Tractive Effort (lbs / kg)25,116 / 11392.44
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.86
Heating Ability
Tubes (number - dia) (in / mm)190 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)12.52 / 3.82
Firebox Area (sq ft / m2)107 / 9.94
Grate Area (sq ft / m2)22.55 / 2.10
Evaporative Heating Surface (sq ft / m2)1343 / 124.81
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1343 / 124.81
Evaporative Heating Surface/Cylinder Volume190.00
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4285
Same as above plus superheater percentage4285
Same as above but substitute firebox area for grate area20,330
Power L14207
Power MT382.47

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