Usina do Queimado 2-6-0 Locomotives in Brazil

Class Details by Steve Llanso of Sweat House Media

Class 3 (Locobase 15274)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 72, pp. 161+. Works number was 57616 in March 1924.

A sugar plantation in Rio de Janeiro State in southeastern Brazil, the UdoQ presented few challenges to a wood-burning Mogul. Its ruling grade, for example, was a mere 1/2%. The usual precautions were taken against scattering sparks by fitting the engine with a Rushton Improved spark arresting cabbage stack of the "Rushton self-cleaning type".

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID15274
RailroadUsina do Queimado
Number in Class1
Road Numbers3
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)9 / 2.74
Engine Wheelbase (ft / m)15 / 4.57
Ratio of driving wheelbase to overall engine wheelbase 0.60
Overall Wheelbase (engine & tender) (ft / m)36.75 / 11.20
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)42,000 / 19,051
Engine Weight (lbs / kg)48,500 / 21,999
Tender Loaded Weight (lbs / kg)41,000 / 18,597
Total Engine and Tender Weight (lbs / kg)89,500 / 40,596
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)23 / 11.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)36 / 914
Boiler Pressure (psi / kPa)170 / 11.70
High Pressure Cylinders (dia x stroke) (in / mm)12" x 18" / 305x457
Tractive Effort (lbs / kg)10,404 / 4719.18
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.04
Heating Ability
Tubes (number - dia) (in / mm)108 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 8.83 / 2.69
Firebox Area (sq ft / m2)68 / 6.32
Grate Area (sq ft / m2)10.60 / 0.98
Evaporative Heating Surface (sq ft / m2)561 / 52.12
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)561 / 52.12
Evaporative Heating Surface/Cylinder Volume238.10
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1802
Same as above plus superheater percentage1802
Same as above but substitute firebox area for grate area11,560
Power L13900
Power MT614.14

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Wes Barris