Central Vannina 0-6-2 Locomotives in USA-Puerto_Rico

Class Details by Steve Llanso of Sweat House Media

Class Guaynabo (Locobase 14180)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 31, p. 13 and Vol 49, p. 71. See also Cesar J Ayala, American sugar kingdom: the plantation economy of the Spanish Caribbean 1898-1934 (University of North Carolina Press, 1999), p. 144. Works numbers were 31705 in September 1907 and 33594 in July 1909.

The Central Vannina was incorporated by Vannina Central Inc in 1911 to serve plantations and a mill in the Rio Piedras region of Puerto Rico. Linked by a 12 km (7.5 mile) line to Guaynabo, the mill was rated at startup as capable of processing 600 tons of cane per day. Along with the charter came a revocable permit to draw 200 litres (53 US gallons) per second from the Rio Piedras.

As metre-gauge radial tanks went, the Guaynabo was of middling size and power.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID14180
RailroadCentral Vannina
CountryUSA-Puerto Rico
Number in Class1
Road Numbers4
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 7.33 / 2.23
Engine Wheelbase (ft / m)14.43 / 4.40
Ratio of driving wheelbase to overall engine wheelbase 0.51
Overall Wheelbase (engine & tender) (ft / m)14.43 / 4.40
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)40,000 / 18,144
Engine Weight (lbs / kg)46,000 / 20,865
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)46,000
Tender Water Capacity (gals / ML)500 / 1.89
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)22 / 11
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)11" x 16" / 279x406
Tractive Effort (lbs / kg)7979 / 3619.22
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.01
Heating Ability
Tubes (number - dia) (in / mm)85 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)10.25 / 3.12
Firebox Area (sq ft / m2)46 / 4.27
Grate Area (sq ft / m2) 9.30 / 0.86
Evaporative Heating Surface (sq ft / m2)442 / 41.06
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)442 / 41.06
Evaporative Heating Surface/Cylinder Volume251.14
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1488
Same as above plus superheater percentage1488
Same as above but substitute firebox area for grate area7360
Power L13360
Power MT555.56

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