Central Monserrate 2-4-0 Locomotives in USA-Puerto_Rico


Class Details by Steve Llanso of Sweat House Media

Class Rita (Locobase 13278)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 32 p. 29. See also the Manati website at [link], last accessed 18 October 2011. Works number was 27731 in March 1906.

Sugar plantations in Puerto Rico proliferated after the American annexation in 1898. La Hacienda Monserrate near Manati had a long history even before that event, with the first cane being planted in 1845. The Manati account of this hacienda notes that the two brothers -- Jaime y Federico Calaf -- then operating the Monserrate took notice of North American technological advances in sugar processing, the enormous plantations, and the advantages of a domestic market in North America. They began an extensive overhaul and modernization of their operation.

Among the upgrades was the rail line that connected the Central to the terminal in Morovis known as La Alianza de Don Agustfn Collazo. This little six-wheeler was purchased by Ernest Wiener, an equipment broker, for that line. It was identical to a few 2-4-0s then in service in the US and Brazil.

Principal Dimensions by Steve Llanso of Middle Run Media
ClassRita
Locobase ID13278
RailroadCentral Monserrate
CountryUSA-Puerto Rico
Whyte2-4-0
Number in Class1
Road Numbers2
GaugeMetre
Number Built1
BuilderBurnham, Williams & Co
Year1908
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)24,000 / 10,886
Engine Weight (lbs / kg)28,000 / 12,701
Tender Loaded Weight (lbs / kg)10,000 / 4536
Total Engine and Tender Weight (lbs / kg)38,000 / 17,237
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 / 1100
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) 5.14
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 / 3.33
Grate Area (sq ft / m2) 8.10 / 0.75
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 Volume212.62
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1296
Same as above plus superheater percentage1296
Same as above but substitute firebox area for grate area5728
Power L13400
Power MT624.64

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