Sucrerie de Cupim 2-4-0 Locomotives in Brazil


Class Details by Steve Llanso of Sweat House Media

Class 4 (Locobase 12952)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 28 p. 286. Works number was 27731 in March 1906.

The Gray's Harbor Lumber company's 6-wheeler (Locobase 12388) may have seemed small for lumber service, but sugar plantations operated such engines and doubtless the 4 felt at home.

Principal Dimensions by Steve Llanso of Sweat House Media

Class4
Locobase ID12952
RailroadSucrerie de Cupim
CountryBrazil
Whyte2-4-0
Number in Class1
Road Numbers4
GaugeMetre
Number Built1
BuilderBurnham, Williams & Co
Year1906
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 5.50 / 1.68
Engine Wheelbase (ft / m)11.17 / 3.40
Ratio of driving wheelbase to overall engine wheelbase 0.49
Overall Wheelbase (engine & tender) (ft / m)25.21 / 7.68
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)23,600 / 10,705
Engine Weight (lbs / kg)27,300 / 12,383
Tender Loaded Weight (lbs / kg)10,000 / 4536
Total Engine and Tender Weight (lbs / kg)37,300 / 16,919
Tender Water Capacity (gals / ML)400 / 1.52
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)20 / 10
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)33 / 838
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)9" x 14" / 229x356
Tractive Effort (lbs / kg)4673 / 2119.64
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.05
Heating Ability
Tubes (number - dia) (in / mm)79 - 1.5" / 38
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)6 / 1.83
Firebox Area (sq ft / m2)35.80 / 2.40
Grate Area (sq ft / m2) 8.15 / 0.76
Evaporative Heating Surface (sq ft / m2)219 / 20.35
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)219 / 20.35
Evaporative Heating Surface/Cylinder Volume212.45
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1304
Same as above plus superheater percentage1304
Same as above but substitute firebox area for grate area5728
Power L13398
Power MT634.86

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