Vittoria a Minas 2-8-0 Locomotives in Brazil

Class Details by Steve Llanso of Sweat House Media

Class 7 (Locobase 13458)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 40, p. 133. See also Numistoria's "Victoria-Minas Railway Company (1902)" bond description at [], last accessed 2 March 2023.Works numbers were 38309-38310 in September 1912.

The VaM's route included the cities Belo Horizonte, Minas Gerais and Vitória, Espírito Santo. It comprised the Peçanha in Araxa and Victoria in Peçanha in a merger. .Formed to built a line from Vittoria in Espiritu Santo to Diamantina in Minas Gerais, the project benefited from the Braxilian government's promise of a 6% return on capital over 30 year period. But after 1914, the government never paid the guarantee.

Two other lines, one going from Santa-Anna dos Ferros to Itabira do Matto-Dentro and the other from Curralinha to Diamantina.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID13458
RailroadVittoria a Minas (CVM)
Number in Class2
Road Numbers7, 5 / 271, 270 / 1271, 1270
Number Built2
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)12.25 / 3.73
Engine Wheelbase (ft / m)18.92 / 5.77
Ratio of driving wheelbase to overall engine wheelbase 0.65
Overall Wheelbase (engine & tender) (ft / m)45.25 / 13.79
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)73,000 / 33,112
Engine Weight (lbs / kg)82,000 / 37,195
Tender Loaded Weight (lbs / kg)44,000 / 19,958
Total Engine and Tender Weight (lbs / kg)126,000 / 57,153
Tender Water Capacity (gals / ML)2200 / 8.33
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)30 / 15
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)42 / 1067
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)16" x 20" / 406x508
Tractive Effort (lbs / kg)16,579 / 7520.12
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.40
Heating Ability
Tubes (number - dia) (in / mm)154 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)11.58 / 3.53
Firebox Area (sq ft / m2)89 / 8.27
Grate Area (sq ft / m2)15.50 / 1.44
Evaporative Heating Surface (sq ft / m2)1016 / 94.39
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1016 / 94.39
Evaporative Heating Surface/Cylinder Volume218.30
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2480
Same as above plus superheater percentage2480
Same as above but substitute firebox area for grate area14,240
Power L13516
Power MT424.74

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