Usina Tahy 2-4-0 Locomotives in Brazil


Class Details by Steve Llanso of Sweat House Media

Class Renata (Locobase 15182)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 66, pp. 363+ Works number was 53202 in April 1920.

A wood-burning Six-wheeler with a fat Rushton Improved cabbage stack that served a sugar plantation in Rio de Janeiro State. It reportedly operated on that railway at least until 1972.

Principal Dimensions by Steve Llanso of Middle Run Media
ClassRenata
Locobase ID15182
RailroadUsina Tahy
CountryBrazil
Whyte2-4-0
Number in Class1
Road Numbers
GaugeMetre
Number Built1
BuilderBaldwin
Year1920
Valve GearWalschaert
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)27.50 / 8.38
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)33,000 / 14,969
Engine Weight (lbs / kg)39,500 / 17,917
Tender Loaded Weight (lbs / kg)22,500 / 10,206
Total Engine and Tender Weight (lbs / kg)62,000 / 28,123
Tender Water Capacity (gals / ML)1000 / 3.79
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)600 / 2271
Minimum weight of rail (calculated) (lb/yd / kg/m)28 / 14
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)11" x 16" / 279x406
Tractive Effort (lbs / kg)7116 / 3227.77
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.64
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 / 3.72
Grate Area (sq ft / m2) 9.20 / 0.86
Evaporative Heating Surface (sq ft / m2)323 / 30.02
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)323 / 30.02
Evaporative Heating Surface/Cylinder Volume183.54
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1472
Same as above plus superheater percentage1472
Same as above but substitute firebox area for grate area6400
Power L12932
Power MT391.75

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