Paulista 0-4-2 Locomotives in Brazil


Class Details by Steve Llanso of Sweat House Media

Class 3 (Locobase 12149)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 19, p. 231. Works number was 14288 in April 1895.

The specifications say that this tank was headed for the Descalvadense Section, where the sharpest curves were measured at 131-ft radius or 40 degrees.

Principal Dimensions by Steve Llanso of Middle Run Media
Class3
Locobase ID12149
RailroadPaulista
CountryBrazil
Whyte0-4-2T
Number in Class1
Road Numbers3 / 952
Gauge60 cm
Number Built1
BuilderBurnham, Williams & Co
Year1895
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 4.50 / 1.37
Engine Wheelbase (ft / m)10.75 / 3.28
Ratio of driving wheelbase to overall engine wheelbase 0.42
Overall Wheelbase (engine & tender) (ft / m)10.75 / 3.28
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)20,000 / 9072
Engine Weight (lbs / kg)27,000
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)400 / 1.52
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)17 / 8.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)37 / 940
Boiler Pressure (psi / kPa)160 / 1100
High Pressure Cylinders (dia x stroke) (in / mm)9" x 16" / 229x406
Tractive Effort (lbs / kg)4764 / 2160.92
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.20
Heating Ability
Tubes (number - dia) (in / mm)61 - 1.5" / 38
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 7.90 / 2.41
Firebox Area (sq ft / m2)34.60 / 3.22
Grate Area (sq ft / m2) 6.80 / 0.63
Evaporative Heating Surface (sq ft / m2)221 / 20.54
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)221 / 20.54
Evaporative Heating Surface/Cylinder Volume187.59
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1088
Same as above plus superheater percentage1088
Same as above but substitute firebox area for grate area5536
Power L13300
Power MT727.52

All material Copyright © SteamLocomotive.com
Wes Barris