North Central 2-8-0 Locomotives in Argentina

Class Details by Steve Llanso of Sweat House Media

Class Pasage (Locobase 3662)

Data provided by Carlos Alberto Fern+ndez Priotti in Bryan Attewell ([] Steam Locomotive simulator program (April 2000). See also DeGolyer, Volume 11, p. 207. Works numbers were 6835-6838, 6846-6847, 6856-6857, 6861, 6866 in July 1883.

Locobase bases the attribution on Gene Connelly's Baldwin production database and a match between Fernandez's data and that of the only set of locomotives I could find in the Baldwin specifications.

The class had names when they first arrived. In addition to Pasage, they were Bermejo, Aconquija, Calchaqui, Puna, Yavi, Guachipas, and Lerma.

Principal Dimensions by Steve Llanso of Middle Run Media

Locobase ID3662
RailroadNorth Central (FCCN)
Number in Class8
Road Numbers32-39
Number Built8
BuilderBurnham, Parry, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)11.75 / 3.58
Engine Wheelbase (ft / m)18.08 / 5.51
Ratio of driving wheelbase to overall engine wheelbase 0.65
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)58,464 / 26,519
Engine Weight (lbs / kg)68,000 / 30,844
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)1600 / 6.06
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 4.40 / 4
Minimum weight of rail (calculated) (lb/yd / kg/m)24 / 12
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)39.40 / 1001
Boiler Pressure (psi / kPa)134.90 / 9.30
High Pressure Cylinders (dia x stroke) (in / mm)16" x 20" / 406x508
Tractive Effort (lbs / kg)14,901 / 6758.99
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.92
Heating Ability
Tubes (number - dia) (in / mm)154 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)10.51 / 3.20
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)16.70 / 1.55
Evaporative Heating Surface (sq ft / m2)974 / 90.49
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)974 / 90.49
Evaporative Heating Surface/Cylinder Volume209.27
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2253
Same as above plus superheater percentage2253
Same as above but substitute firebox area for grate area
Power L1
Power MT

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