Melhoramentos de Monte Alto 0-6-2 Locomotives in Brazil


Class Details by Steve Llanso of Sweat House Media

Class Tabaran (Locobase 13775)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 36, p. 293. Works number was 35272 in September 1910.

The second engine to pull passenger and freight trains along the first 9 km (5.6 miles) of this little railway located 370 km (230 miles) northwest of Sao Paulo was this radial tank. It was a bit bigger and more powerful than the saddle tank shown in Locobase 13665.

Principal Dimensions by Steve Llanso of Middle Run Media
ClassTabaran
Locobase ID13775
RailroadMelhoramentos de Monte Alto
CountryBrazil
Whyte0-6-2T
Number in Class1
Road Numbers2
GaugeMetre
Number Built1
BuilderBaldwin
Year1910
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)7 / 2.13
Engine Wheelbase (ft / m)13 / 3.96
Ratio of driving wheelbase to overall engine wheelbase 0.54
Overall Wheelbase (engine & tender) (ft / m)13 / 3.96
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)33,000 / 14,969
Engine Weight (lbs / kg)39,000 / 17,690
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)39,000 / 17,690
Tender Water Capacity (gals / ML)500 / 1.89
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)18 / 9
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)33 / 838
Boiler Pressure (psi / kPa)160 / 1100
High Pressure Cylinders (dia x stroke) (in / mm)10" x 16" / 254x406
Tractive Effort (lbs / kg)6594 / 2990.99
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.00
Heating Ability
Tubes (number - dia) (in / mm)67 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 9.67 / 2.95
Firebox Area (sq ft / m2)27 / 2.51
Grate Area (sq ft / m2) 7.23 / 0.67
Evaporative Heating Surface (sq ft / m2)322 / 29.91
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)322 / 29.91
Evaporative Heating Surface/Cylinder Volume221.39
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1157
Same as above plus superheater percentage1157
Same as above but substitute firebox area for grate area4320
Power L12765
Power MT554.16

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