Standard Fruit & Steamship 2-6-2 Locomotives in Nicaragua


Class Details by Steve Llanso of Sweat House Media

Class 8 (Locobase 15363)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 78, pp. 136+. See also Richard P Tucker, Insatiable Appetite: The United States and the Ecological Degradation of the Tropical World (Berkeley, CA: University of California Press, 2000), pp. 354-355 Works numbers were 59377, 59394-59395 in August 1926.

Plantation Prairies that used a design also found on logging roads, these were mid-sized locomotives for that service. And indeed these engines were bought for SF&S's Bragmans Bluff Lumber Company as the latter's 8-10. Tucker notes that the BBLC was organized in 1923 when the Varraro brothers bought an existing 80,000 acre pine concession on the Miskito Coast.

The three 2-6-2s would make up part of a stud that served 100 miles (161 km) of private railroads that supported both timber and banana harvesting. The line had 2% grades and 30 degree curves (radii of 191 feet/58.2 metres).

Later they operated on Nicaragua's FC del Pacifico as 12, 11, and 14, respectively.

Principal Dimensions by Steve Llanso of Middle Run Media
Class8
Locobase ID15363
RailroadStandard Fruit & Steamship
CountryNicaragua
Whyte2-6-2
Number in Class1
Road Numbers8-10
GaugeStd
Number Built1
BuilderBaldwin
Year1920
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)10 / 3.05
Engine Wheelbase (ft / m)26 / 7.92
Ratio of driving wheelbase to overall engine wheelbase 0.38
Overall Wheelbase (engine & tender) (ft / m)47.25 / 14.40
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)78,000 / 35,380
Engine Weight (lbs / kg)102,000 / 46,266
Tender Loaded Weight (lbs / kg)68,000 / 30,844
Total Engine and Tender Weight (lbs / kg)170,000 / 77,110
Tender Water Capacity (gals / ML)3000 / 11.36
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)1500 / 5678
Minimum weight of rail (calculated) (lb/yd / kg/m)43 / 21.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)46 / 1168
Boiler Pressure (psi / kPa)180 / 1240
High Pressure Cylinders (dia x stroke) (in / mm)16" x 24" / 406x610
Tractive Effort (lbs / kg)20,435 / 9269.17
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.82
Heating Ability
Tubes (number - dia) (in / mm)178 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)14.75 / 4.50
Firebox Area (sq ft / m2)87 / 8.09
Grate Area (sq ft / m2)20.60 / 1.91
Evaporative Heating Surface (sq ft / m2)1454 / 135.13
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1454 / 135.13
Evaporative Heating Surface/Cylinder Volume260.34
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3708
Same as above plus superheater percentage3708
Same as above but substitute firebox area for grate area15,660
Power L14667
Power MT395.73

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