Usina Malvina Dolabella 0-6-0 Locomotives in Brazil


Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 15445)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 79, p. 268+. See also at [link], last accessed 19 September 2013. Works number was 60693 in December 1928.

Supporting Portella & Company's construction of the rail line between Corinto and Montes Claros, a small saddle-tank like this needed to meet certain standards: "Design to be checked carefully to adapt locomotive for rough service and to ensure free steaming with wood burning stack on a maximum haul of 100 metric tons [110 short tons] on a straight grade of 1 1/2%, one mile [1.6 km] long." The stack was to be of "wood burning type, adopted for Brazil" and the spark arrester "to be efficient and of type approved by government."

The Usina Malvina Dolabella was quite new, having opened only in 1925 near Bocaiuva. It was only the second industry to appear in northern Minas Gerais state. It lay in a fertile area that produced cane sugar of high quality. The Rio Jequitai supplied ample water. As the Usina grew, it induced the establishment of other industries such as flour mills, cotton mills, bottling plants, a tar distillery, and a saw mill. As in many company-owned habitations, workers were paid first with "Bor=", a locally "minted" aluminum coin and later with the CTdula ("ballot"- a form of scrip).

Principal Dimensions by Steve Llanso of Middle Run Media
Classunknown
Locobase ID15445
RailroadUsina Malvina Dolabella
CountryBrazil
Whyte0-6-0ST
Number in Class1
Road Numbers
GaugeMetre
Number Built1
BuilderBaldwin
Year1929
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 6.25 / 1.90
Engine Wheelbase (ft / m) 6.25 / 1.90
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m) 6.25 / 1.90
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)26,250 / 11,907
Engine Weight (lbs / kg)26,250 / 11,907
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)26,250 / 11,907
Tender Water Capacity (gals / ML)250 / 0.95
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)15 / 7.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)28 / 711
Boiler Pressure (psi / kPa)160 / 1100
High Pressure Cylinders (dia x stroke) (in / mm)9" x 14" / 229x356
Tractive Effort (lbs / kg)5508 / 2498.39
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.77
Heating Ability
Tubes (number - dia) (in / mm)56 - 1.5" / 38
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 6.88 / 2.10
Firebox Area (sq ft / m2)28 / 2.60
Grate Area (sq ft / m2) 8.10 / 0.75
Evaporative Heating Surface (sq ft / m2)179 / 16.63
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)179 / 16.63
Evaporative Heating Surface/Cylinder Volume173.65
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1296
Same as above plus superheater percentage1296
Same as above but substitute firebox area for grate area4480
Power L12311
Power MT582.27

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