Brazil Railway 2-8-2 Locomotives in Brazil

Class Details by Steve Llanso of Sweat House Media

Class 15 (Locobase 15179)

Data from DeGolyer, Volume 66, pp. 356+. See Todd S Diacon, Millenarian Vision, Capitalist Reality: Brazilñs Contestado Rebellion, 1912v1916 (Durham, NC: Duke University Press, 1991). Works number was 53569 in August 1920.

The Southern Brazil Lumber & Colonization Company, which had its headquarters at Tres Barras in Parana, was incorporated to exploit the timber resources on either side of a railway that straddled the disputed border between the southern Brazilian states of Parana and Santa Catarina. The concession included 6,000,000 acres (9,375 sq mi/24,300 sq km) from the federal government and over 1/2 million more acres (781 sq m) that the company acquired on its own.

Originally authorized in 1890 as a link between Sao Paulo and Santa Maria (the latter in Rio Grande do Sul State), the railway's construction finally began in 1908 and attracted as many as 8,000 workers from urban areas.

Therein lay the source of the Contestado War, waged between settlers who had been drawn by Parana State and landowners who were empowered by favorable laws to develop as much land as possible. Diacon's book offers a good overview of the origins and conduct of this four-year struggle.

By the time this small wood-burning Mikado, the only engine supplied to the SBLC by Baldwin, the issue had been settled and development continued apace. It was a wood-burner and sported a Rushton Improved spark-arresting cabbage stack, reinforcing the stipulation that "special precaution must be taken as woods catch fire very easily."

15 was intended for light 45 lb/yard (22.5 kg/metre) track and was tasked with climbing 2 1/2% grades and getting around curves with radii of 120 metres (394 feet). Its use of the relatively rare Southern valve gear is notable.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID15179
RailroadBrazil Railway
Number in Class1
Road Numbers15
Number Built1
Valve GearSouthern
Locomotive Length and Weight
Driver Wheelbase (ft / m)11 / 3.35
Engine Wheelbase (ft / m)25.67 / 7.82
Ratio of driving wheelbase to overall engine wheelbase 0.43
Overall Wheelbase (engine & tender) (ft / m)46.96 / 14.31
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)84,000 / 38,102
Engine Weight (lbs / kg)102,000 / 46,266
Tender Loaded Weight (lbs / kg)63,500 / 28,803
Total Engine and Tender Weight (lbs / kg)165,500 / 75,069
Tender Water Capacity (gals / ML)3000 / 11.36
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)35 / 17.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)38 / 965
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)16" x 20" / 406x508
Tractive Effort (lbs / kg)20,615 / 9350.82
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.07
Heating Ability
Tubes (number - dia) (in / mm)179 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)14.67 / 4.47
Firebox Area (sq ft / m2)88 / 8.18
Grate Area (sq ft / m2)22 / 2.04
Evaporative Heating Surface (sq ft / m2)1455 / 135.17
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1455 / 135.17
Evaporative Heating Surface/Cylinder Volume312.62
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3960
Same as above plus superheater percentage3960
Same as above but substitute firebox area for grate area15,840
Power L14642
Power MT487.33

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Wes Barris