EF de Braganta 2-6-0 Locomotives in Brazil


Class Details by Steve Llanso of Sweat House Media

Class Anhanga (Locobase 14207)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 49, 174. Works numbers were 40463-40465 in August 1913.

This trio--named Anhanga, Capanema, and Caneta--repeated the well-proven, wood-burning small-Mogul design that Amsinck had first purchased for Braganta in 1891 (Locobase 12059). Like their predecessors, these were more "European" than the usual narrow-gauge freighters from Baldwin in their use of Allan straight-link motion and the Belpaire screw reverser.

Although delivered as wood-burners, the class was the subject of a "Hereafter" note written 30 November 1913 that described the replacement of the Radley & Hunter balloon stack with a straight stack mounted on an extended smokebox that held deflector plates and netting. The note also said that a Pyle Electric headlight "may be required" as would be wheel covers. This latter point may have addressed a maintenance issue posed by the original specification that all driving and tender wheels have a five-pointed red star painted on the centers.


Class Lauro Sodre (Locobase 12059)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 17, p. 161; see also Vol 22, p. 45. Works numbers were 11559, 11568 in January 1891; 12937, 12949 in September; 13619 in August 1893; 14304-14305 in April 1895, 16480-16483 in January 1899.

Braganta went back to Baldwin for more Moguls 4 years after they'd taken delivery of the Princesa Izabel and her sisters (Locobase 11574). These were bigger locomotives with more pressure in the boiler. They also featured Allan straight-link motion and the Belpaire screw reverser, a combination more often seen in Continental railroading in Europe.

After the Lauro Sodre came the Para, Salinas, Braganta, and Cintra. In 1899, another quartet arrived with the names Jambu Association, Caripy, Guatipuru, and Maracana.

The 1899 specs noted that that quartet was required to haul 120 metric tons (130 short tons) up a 2 1/2% grade and around curves of 100 metres/328 feet radii ( 17 1/2 degrees curvature).


Class Princeza Izabel (Locobase 11574)

Data from Baldwin Locomotive Works Specification for Engines, 1888, as digitized by the DeGolyer Library of Southern Methodist University Vol 15, p. 12. Works numbers were 9811 and 9822 in February 1889.

The second locomotive bore the name Conselheiro Joao Alfredo. The Braganta was based in Para State and linked its capital of BelTm with Spo Brás. Its total mileage came to 222 km (138 miles).

Principal Dimensions by Steve Llanso of Middle Run Media
ClassAnhangaLauro SodrePrinceza Izabel
Locobase ID14207 12059 11574
RailroadEF de BragantaEF de BragantaEF de Braganta
CountryBrazilBrazilBrazil
Whyte2-6-02-6-02-6-0
Number in Class3122
Road Numbers23-251-12
GaugeMetreMetreMetre
Number Built3122
BuilderBaldwinBurnham, Williams & CoBurnham, Parry, Williams & Co
Year191318931889
Valve GearAllanAllanStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)12.67 / 3.8612.67 / 3.8612 / 3.66
Engine Wheelbase (ft / m)19.08 / 5.8219.08 / 5.8212 / 3.66
Ratio of driving wheelbase to overall engine wheelbase 0.66 0.661
Overall Wheelbase (engine & tender) (ft / m)38.0818.33 / 5.59
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)53,00039,000 / 17,690
Engine Weight (lbs / kg)63,00046,000 / 20,865
Tender Loaded Weight (lbs / kg)44,000
Total Engine and Tender Weight (lbs / kg)107,000
Tender Water Capacity (gals / ML)2200 / 8.332200 / 8.331400 / 5.30
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 4.50
Minimum weight of rail (calculated) (lb/yd / kg/m)29 / 14.5022 / 11
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)42 / 106742 / 106741 / 1041
Boiler Pressure (psi / kPa)160 / 1030150 / 1030130 / 900
High Pressure Cylinders (dia x stroke) (in / mm)15" x 18" / 381x45715" x 18" / 381x45713" x 18" / 330x457
Tractive Effort (lbs / kg)13,114 / 5948.4212,295 / 5576.928199 / 3719.01
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.04 4.76
Heating Ability
Tubes (number - dia) (in / mm)221 - 1.5" / 38221 - 1.5" / 38156 - 1.5" / 38
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 8.31 / 2.53 8.31 / 2.53 8.42 / 2.57
Firebox Area (sq ft / m2)66.93 / 6.2266.93 / 6.22
Grate Area (sq ft / m2)11.20 / 1.0411.20 / 1.0410 / 0.93
Evaporative Heating Surface (sq ft / m2)788 / 73.23788 / 73.23
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)788 / 73.23788 / 73.23
Evaporative Heating Surface/Cylinder Volume214.04214.04
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation179216801300
Same as above plus superheater percentage179216801300
Same as above but substitute firebox area for grate area10,70910,040
Power L134153202
Power MT426.16

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