Goyaz 2-6-0 Locomotives in Brazil


Class Details by Steve Llanso of Sweat House Media

Class Couto Magalhaes (Locobase 13338)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 32, p. 269 and Volume 44, pp 182-183. Works number was 32923-32924 in August 1908 and 37827-37828 in June 1912.

See Locobase 13337 for a discussion of the intent of the Goyaz Railway project.

Principal Dimensions by Steve Llanso of Middle Run Media
ClassCouto Magalhaes
Locobase ID13338
RailroadGoyaz
CountryBrazil
Whyte2-6-0
Number in Class2
Road Numbers3-4, 11-12
GaugeMetre
Number Built2
BuilderBurnham, Williams & Co
Year1908
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)10 / 3.05
Engine Wheelbase (ft / m)16.50 / 5.03
Ratio of driving wheelbase to overall engine wheelbase 0.61
Overall Wheelbase (engine & tender) (ft / m)38.62 / 11.77
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)58,700 / 26,626
Engine Weight (lbs / kg)68,100 / 30,890
Tender Loaded Weight (lbs / kg)36,000 / 16,329
Total Engine and Tender Weight (lbs / kg)104,100 / 47,219
Tender Water Capacity (gals / ML)1800 / 6.82
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)33 / 16.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)42 / 1067
Boiler Pressure (psi / kPa)160 / 1100
High Pressure Cylinders (dia x stroke) (in / mm)15" x 18" / 381x457
Tractive Effort (lbs / kg)13,114 / 5948.42
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.48
Heating Ability
Tubes (number - dia) (in / mm)158 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 9.04 / 2.76
Firebox Area (sq ft / m2)81 / 7.53
Grate Area (sq ft / m2)14.60 / 1.36
Evaporative Heating Surface (sq ft / m2)730 / 67.82
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)730 / 67.82
Evaporative Heating Surface/Cylinder Volume198.29
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2336
Same as above plus superheater percentage2336
Same as above but substitute firebox area for grate area12,960
Power L13453
Power MT389.06

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