Provincial Railways of Buenos Aires 2-6-0 Locomotives in Argentina


Class Details by Steve Llanso of Sweat House Media

Class 105 (Locobase 11685)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 14, 252.

Works numbers were 9709 in December 1888; 9724 in January 1889; 9834, 9837, 9840-9841 in February; 9845, 9857 in March.

This Argentine broad-gauge bought several batches of Moguls from Dubs & Company in the late '80s, but Baldwin managed to snag an order for this octet.

Principal Dimensions by Steve Llanso of Middle Run Media
Class105
Locobase ID11685
RailroadProvincial Railways of Buenos Aires
CountryArgentina
Whyte2-6-0
Number in Class8
Road Numbers105-112
Gauge5'6"
Number Built8
BuilderBurnham, Parry, Williams & Co
Year1888
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)13.92 / 4.24
Engine Wheelbase (ft / m)21.25 / 6.48
Ratio of driving wheelbase to overall engine wheelbase 0.66
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)75,000 / 34,019
Engine Weight (lbs / kg)90,000 / 40,823
Tender Loaded Weight (lbs / kg)56,000 / 25,401
Total Engine and Tender Weight (lbs / kg)146,000 / 66,224
Tender Water Capacity (gals / ML)2700 / 10.23
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)42 / 21
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)54 / 1372
Boiler Pressure (psi / kPa)130 / 900
High Pressure Cylinders (dia x stroke) (in / mm)18" x 24" / 457x610
Tractive Effort (lbs / kg)15,912 / 7217.57
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.71
Heating Ability
Tubes (number - dia) (in / mm)192 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)10.72 / 3.27
Firebox Area (sq ft / m2)93.40 / 8.68
Grate Area (sq ft / m2)16.40 / 1.52
Evaporative Heating Surface (sq ft / m2)1154 / 107.21
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1154 / 107.21
Evaporative Heating Surface/Cylinder Volume163.26
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2132
Same as above plus superheater percentage2132
Same as above but substitute firebox area for grate area12,142
Power L12683
Power MT236.60

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