Central Union 2-4-4 Locomotives in Cuba


Class Details by Steve Llanso of Sweat House Media

Class Tribilin (Locobase 14363)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 54 p. 43. See also Cesar J Ayala, American sugar kingdom: the plantation economy of the Spanish Caribbean 1898-1934 (University of North Carolina Press, 1999). Works number was 43659 in July 1916.

A larger locomotive among the standard line of Baldwin double-ended saddle tank plantation locomotives. Note the extra axle under the rear tank and bunker to carry a bigger fuel supply.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassTribilin
Locobase ID14363
RailroadCentral Union
CountryCuba
Whyte2-4-4ST
Number in Class1
Road Numbers2
GaugeStd
Number Built1
BuilderBaldwin
Year1916
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 6.50 / 1.98
Engine Wheelbase (ft / m)16.25 / 4.95
Ratio of driving wheelbase to overall engine wheelbase 0.40
Overall Wheelbase (engine & tender) (ft / m)16.25 / 4.95
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)44,000 / 19,958
Engine Weight (lbs / kg)84,000 / 38,102
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)84,000 / 38,102
Tender Water Capacity (gals / ML)1300 / 4.92
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 1.50 / 1
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)44 / 1118
Boiler Pressure (psi / kPa)150 / 10.30
High Pressure Cylinders (dia x stroke) (in / mm)13" x 20" / 330x508
Tractive Effort (lbs / kg)9794 / 4442.49
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.49
Heating Ability
Tubes (number - dia) (in / mm)133 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 8.50 / 2.59
Firebox Area (sq ft / m2)73 / 6.78
Grate Area (sq ft / m2)16.60 / 1.54
Evaporative Heating Surface (sq ft / m2)659 / 61.22
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)659 / 61.22
Evaporative Heating Surface/Cylinder Volume214.48
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2490
Same as above plus superheater percentage2490
Same as above but substitute firebox area for grate area10,950
Power L13666
Power MT

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