Therezopolis 2-4-0 Locomotives in Brazil


Class Details by Steve Llanso of Sweat House Media

Class 2 (Locobase 12114)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 19, p. 120. Works numbers were 14939 in July 1896.

Although ordered at the same time as two identical Moguls for the Melhoramento (Locobase 12111), this engine wasn't actually produced until 2 years later.

Principal Dimensions by Steve Llanso of Sweat House Media

Class2
Locobase ID12114
RailroadTherezopolis
CountryBrazil
Whyte2-4-0
Number in Class1
Road Numbers2
GaugeMetre
Number Built1
BuilderBurnham, Williams & Co
Year1894
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)6 / 1.83
Engine Wheelbase (ft / m)12.42 / 3.79
Ratio of driving wheelbase to overall engine wheelbase 0.48
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)26,000 / 11,793
Engine Weight (lbs / kg)32,000 / 14,515
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)800 / 3.03
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)22 / 11
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)37 / 940
Boiler Pressure (psi / kPa)135 / 9.30
High Pressure Cylinders (dia x stroke) (in / mm)11" x 16" / 279x406
Tractive Effort (lbs / kg)6004 / 2723.37
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.33
Heating Ability
Tubes (number - dia) (in / mm)111 - 1.5" / 38
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 6.58 / 2.01
Firebox Area (sq ft / m2)40.30 / 3.74
Grate Area (sq ft / m2) 9.20 / 0.85
Evaporative Heating Surface (sq ft / m2)324 / 30.10
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)324 / 30.10
Evaporative Heating Surface/Cylinder Volume184.10
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1242
Same as above plus superheater percentage1242
Same as above but substitute firebox area for grate area5441
Power L12486
Power MT421.59

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