Soledad Plantation 2-8-0 Locomotives in Cuba


Class Details by Steve Llanso of Sweat House Media

Class Aramao (Locobase 14028)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 44, p. 318. See also Thomas Barbour, "Barbour explains work being carried on by Harvard at Soledad Plantation," Harvard Crimson, 31 May 1928. and Marion D Cahan, "The Harvard Garden in Cuba - a Brief History" at [link] . Works number was 33553 in July 1909.

Although a coal burner, the Aramao still needed to use the classic Radley & Hunter cabbage stack to suppress sparks. The engine was one of several delivered to Cuba during this period that were built to the same specifications. It was ordered by Guiler Engineering Company to operate on this 22-mile plantation road near Cienfuegos in western Cuba for decades and was reported to still be in service in 1995.

The Soledad Plantation was well-known to a variety of historians and researchers because of its Harvard connection. The Harvard Botanical Gardens began research into improved varieties of sugar cane in 1901 and later expanded its efforts to include many kinds of tropical plants and crops.

Principal Dimensions by Steve Llanso of Middle Run Media
ClassAramao
Locobase ID14028
RailroadSoledad Plantation
CountryCuba
Whyte2-8-0
Number in Class1
Road Numbers
Gauge2'6"
Number Built1
BuilderBaldwin
Year1909
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 9.83 / 3
Engine Wheelbase (ft / m)17.17 / 5.23
Ratio of driving wheelbase to overall engine wheelbase 0.57
Overall Wheelbase (engine & tender) (ft / m)41.19 / 12.55
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)62,000 / 28,123
Engine Weight (lbs / kg)69,000 / 31,298
Tender Loaded Weight (lbs / kg)50,000 / 22,680
Total Engine and Tender Weight (lbs / kg)119,000 / 53,978
Tender Water Capacity (gals / ML)2500 / 9.47
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)26 / 13
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)36 / 914
Boiler Pressure (psi / kPa)160 / 1100
High Pressure Cylinders (dia x stroke) (in / mm)14" x 20" / 356x508
Tractive Effort (lbs / kg)14,809 / 6717.26
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.19
Heating Ability
Tubes (number - dia) (in / mm)114 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)14 / 4.27
Firebox Area (sq ft / m2)60 / 5.57
Grate Area (sq ft / m2)11 / 1.02
Evaporative Heating Surface (sq ft / m2)905 / 84.08
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)905 / 84.08
Evaporative Heating Surface/Cylinder Volume253.97
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1760
Same as above plus superheater percentage1760
Same as above but substitute firebox area for grate area9600
Power L13246
Power MT461.69

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