Usina Bulh)es 0-6-2 Locomotives in Brazil


Class Details by Steve Llanso of Sweat House Media

Class 4 (Locobase 15446)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 79, p. 271+. See also the blog entry at "Usinas de Pernambuco--Jaboatpo dos Guararapes", 17 noviembre 2012[link], last accessed 20 September 2013. Works number was 60839 in May 1929.

Directed toward plantation service, the 4 was a bi-fuel (wood or coal) saddle tank that rolled on the sugar mill's 15 kg/metre (30 ft/yard) rail up 2 1/2% grades that were combined with curve radii of 70 metres.

The mill was located in the town of Jaboatpo dos Guararapes in Pernambuco State, a little more than 20 km (12.4 miles from the port of Recife. At the time when this saddle tank arrived, the Usina's railway covered 27 km (16.75 miles) and operated four locomotives and 44 8-10 tonne (8.8-11 ton) sugar cars. The mill could process 400 tonnes (440 tons) of sugar cane or 3,000 litres (793 US gallons) of alcohol every 24 hours.

Principal Dimensions by Steve Llanso of Middle Run Media
Class4
Locobase ID15446
RailroadUsina Bulh)es
CountryBrazil
Whyte0-6-2ST
Number in Class1
Road Numbers4
Gauge75 cm
Number Built1
BuilderBaldwin
Year1929
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m) 6.83 / 2.08
Engine Wheelbase (ft / m)13.08 / 3.99
Ratio of driving wheelbase to overall engine wheelbase 0.52
Overall Wheelbase (engine & tender) (ft / m)13.08 / 3.99
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)29,000 / 13,154
Engine Weight (lbs / kg)35,100 / 15,921
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)250 / 0.95
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)16 / 8
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)33 / 838
Boiler Pressure (psi / kPa)180 / 1240
High Pressure Cylinders (dia x stroke) (in / mm)9" x 16" / 229x406
Tractive Effort (lbs / kg)6009 / 2725.64
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.83
Heating Ability
Tubes (number - dia) (in / mm)56 - 1.75" / 44
Flues (number - dia) (in / mm)1 - 2.25" / 57
Flue/Tube length (ft / m) 9.50 / 2.90
Firebox Area (sq ft / m2)31 / 2.88
Grate Area (sq ft / m2) 7.10 / 0.66
Evaporative Heating Surface (sq ft / m2)279 / 25.92
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)279 / 25.92
Evaporative Heating Surface/Cylinder Volume236.82
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1278
Same as above plus superheater percentage1278
Same as above but substitute firebox area for grate area5580
Power L13647
Power MT831.75

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