Porto Alegre a Novo Hamburgo 2-4-0 Locomotives in Brazil

Class Details by Steve Llanso of Sweat House Media

Class Sao Leopoldo (Locobase 20100)

Data from Lionel Wiener, "Locomotives of the Rio Grande do Sul", Locomotive Magazine, Volume 18 (15 July 1912), pp. 257-258. Works number was 2534 in 1889.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassSao Leopoldo
Locobase ID20100
RailroadPorto Alegre a Novo Hamburgo
Number in Class1
Road Numbers5
Number Built1
BuilderDubs & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)
Engine Weight (lbs / kg)31,360 / 14,225
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)31,360 / 14,225
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)66 / 1676
Boiler Pressure (psi / kPa)130 / 9
High Pressure Cylinders (dia x stroke) (in / mm)10.25" x 18" / 260x457
Tractive Effort (lbs / kg)3166 / 1436.08
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)95 / 8.83
Grate Area (sq ft / m2) 7.16 / 0.67
Evaporative Heating Surface (sq ft / m2)358 / 33.26
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)358 / 33.26
Evaporative Heating Surface/Cylinder Volume208.25
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation931
Same as above plus superheater percentage931
Same as above but substitute firebox area for grate area12,350
Power L16929
Power MT

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