Marica 2-4-0 Locomotives in Brazil


Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 13865)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 39, pp. 235. Works number was 36302 in March 1911.

The Marica bought this little six-wheeler to meets specs that included 50-lb/yard (25-kg/metre) rail on a line that had a ruling grade of 3% and curves with radii of as low as 197 feet (60 m).

Decades later in 1943, the Central do Brasil renumbered the pair 1047, 1046.

Principal Dimensions by Steve Llanso of Sweat House Media

Class1
Locobase ID13865
RailroadMarica
CountryBrazil
Whyte2-4-0
Number in Class1
Road Numbers1
GaugeMetre
Number Built1
BuilderBaldwin
Year1911
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)7 / 2.13
Engine Wheelbase (ft / m)14.50 / 4.42
Ratio of driving wheelbase to overall engine wheelbase 0.48
Overall Wheelbase (engine & tender) (ft / m)36.52 / 11.13
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)44,000 / 19,958
Engine Weight (lbs / kg)52,000 / 23,587
Tender Loaded Weight (lbs / kg)28,000 / 12,701
Total Engine and Tender Weight (lbs / kg)80,000 / 36,288
Tender Water Capacity (gals / ML)1400 / 5.30
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 2.50 / 2
Minimum weight of rail (calculated) (lb/yd / kg/m)37 / 18.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)42 / 1067
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)13" x 18" / 330x457
Tractive Effort (lbs / kg)9850 / 4467.89
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.47
Heating Ability
Tubes (number - dia) (in / mm)132 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 8.83 / 2.69
Firebox Area (sq ft / m2)60 / 5.57
Grate Area (sq ft / m2)10.20 / 0.95
Evaporative Heating Surface (sq ft / m2)665 / 61.78
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)665 / 61.78
Evaporative Heating Surface/Cylinder Volume240.48
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1632
Same as above plus superheater percentage1632
Same as above but substitute firebox area for grate area9600
Power L13908
Power MT391.62

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