Entre Rios 2-6-0 Locomotives in Argentina

Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 15859)

Data from R Herbert La Page, "On Compound Locomotives", Railway Engineer, Vol X, No 3 (March 1889), pp. 67-79.

Herbert wrote that this engine was one of six Moguls sent out to the Entre Rios and the only one to use the von Borries-Worsdell cross-compound system then coming into vogue. The key feature in the design was the automatic intercepting valve that allowed live steam into the LP cylinder for starting and used the exhaust steam to close that valve once the locomotive began moving.

(Locobase cannot confirm that the other five used two 16" x 24" cylinders.)

Herbert's long article goes into considerable detail about the advantages of compounding and, given its relatively early publication, is a valuable look at the burgeoning stud of two-cylinder compounds in several countries.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID15859
RailroadEntre Rios
Number in Class1
Road Numbers
Number Built1
BuilderDubs & 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)54 / 27
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)45 / 1143
Boiler Pressure (psi / kPa)175 / 12.10
High Pressure Cylinders (dia x stroke) (in / mm)16" x 24" / 406x610 (1)
Low Pressure Cylinders (dia x stroke) (in / mm)23" x 24" / 584x610 (1)
Tractive Effort (lbs / kg)13,686 / 6207.87
Factor of Adhesion (Weight on Drivers/Tractive Effort) 7.09
Heating Ability
Tubes (number - dia) (in / mm)171 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)10.25 / 3.12
Firebox Area (sq ft / m2)104 / 9.66
Grate Area (sq ft / m2)18 / 1.67
Evaporative Heating Surface (sq ft / m2)1016 / 94.39
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1016 / 94.39
Evaporative Heating Surface/Cylinder Volume363.83
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3150
Same as above plus superheater percentage3150
Same as above but substitute firebox area for grate area18,200
Power L13494
Power MT238.24

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