Central Nuestra Senora del Carmen 2-6-0 Locomotives in Cuba

Class Details by Steve Llanso of Sweat House Media

Class 4 (Locobase 14837)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 64, p. 84 and Vol 72, pp. 15+. See also "Newsletter from Our Havana Office", Louisiana Planter and Sugar Manufacturer, Vol LX, No 18 (4 May 1918), p. 278. Works number were 52586 in November 1919 and 57797 in June 1924.

The CNSdelC was located at Jaruco in La Habana Province just east of the capital. Its mill was given high marks for the "particularly clean and good grade of sugar" in a 1918 report.

The little railway was strictly for moving cane cars. Its 25 lb/yard (12.5 kg/metre) rails suggest as much as do the minimum radii of 68 metres (223 feet). A note in the specifications states that the United Railways of Havana ran its standard-gauge tracks into the Central's yard and that the narrow-gauge tracks were laid inside of the wider set on a common centerline. Thus "no unusual side swing of the couplers is necessary."

The second plantation Mogul had slightly (very slightly) different specs, the biggest difference being a one-ton (907 kg) increase in adhesion weight. The 5 was later sold to the Central Paraguay. After the 1959 Cuban Revolucion and expropriation, the CP was renamed for Rafael Freyre.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID14837
RailroadCentral Nuestra Senora del Carmen
Number in Class2
Road Numbers4-5
Number Built2
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)7 / 2.13
Engine Wheelbase (ft / m)13.50 / 4.11
Ratio of driving wheelbase to overall engine wheelbase 0.52
Overall Wheelbase (engine & tender) (ft / m)36.30 / 11.06
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)37,000 / 16,783
Engine Weight (lbs / kg)45,000 / 20,412
Tender Loaded Weight (lbs / kg)24,000 / 10,886
Total Engine and Tender Weight (lbs / kg)69,000 / 31,298
Tender Water Capacity (gals / ML)1200 / 4.55
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)3 / 3
Minimum weight of rail (calculated) (lb/yd / kg/m)21 / 10.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)36 / 914
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)12" x 16" / 305x406
Tractive Effort (lbs / kg)8704 / 3948.07
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.25
Heating Ability
Tubes (number - dia) (in / mm)73 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)11.33 / 3.45
Firebox Area (sq ft / m2)40 / 3.72
Grate Area (sq ft / m2)8 / 0.74
Evaporative Heating Surface (sq ft / m2)470 / 43.66
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)470 / 43.66
Evaporative Heating Surface/Cylinder Volume224.41
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1280
Same as above plus superheater percentage1280
Same as above but substitute firebox area for grate area6400
Power L13071
Power MT548.95

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