EF de Braganta 0-4-2 Locomotives in Brazil


Class Details by Steve Llanso of Sweat House Media

Class 16 (Locobase 12885)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 28, p. 176. Works numbers were 27084 in December 1905 and September 1907.

Amsinck & Company, locomotive dealers, bought these two engines. The second of the two was named Maguary.

NB: The Baldwin specs do not show calculated heating surface areas. The evaporative and direct (firebox) heating surfaces in the fields above are estimates based on a comparison with another locomotive with the same tube count, diameter, and length. The fireboxes of the two designs had identical measurements down to 1/8".

Principal Dimensions by Steve Llanso of Middle Run Media
Class16
Locobase ID12885
RailroadEF de Braganta
CountryBrazil
Whyte0-4-2T
Number in Class2
Road Numbers16, 18
GaugeMetre
Number Built2
BuilderBurnham, Williams & Co
Year1905
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)5 / 1.52
Engine Wheelbase (ft / m)11.50 / 3.51
Ratio of driving wheelbase to overall engine wheelbase 0.43
Overall Wheelbase (engine & tender) (ft / m)11.50 / 3.51
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)34,000 / 15,422
Engine Weight (lbs / kg)40,000 / 18,144
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
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)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) 4.78
Heating Ability
Tubes (number - dia) (in / mm)91 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 8.79 / 2.68
Firebox Area (sq ft / m2)37.90 / 3.52
Grate Area (sq ft / m2)7 / 0.65
Evaporative Heating Surface (sq ft / m2)405 / 37.63
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)405 / 37.63
Evaporative Heating Surface/Cylinder Volume230.13
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1120
Same as above plus superheater percentage1120
Same as above but substitute firebox area for grate area6064
Power L13333
Power MT432.24

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