FC de C+cuta / FC de Caldas 2-4-2 Locomotives in Colombia


Class Details by Steve Llanso of Sweat House Media

Class Tonchala (Locobase 14500)

Data from DeGolyer, Vol 54, pp. 304. Works number was 41307 in April 1914.

Yglesia, Lobo & Company bought this tiny double-ender tank to run on 30 lb/yard (15 kg/metre) rail and scale 2 1/2% grades.


Class Zapata (Locobase 14501)

Data from DeGolyer, Vol 54, pp. 308. See also Gabriel Poveda, "El Ferrocarril de Caldas", DYNA 70, Nro 139, pp. 139 (Medellin, Colombia: Julio de 2003) at [link]. Works number was 42964 in February 1916.

Ordered by broker Meckle & Company, this engine was similar to the Cucuta saddle-tank double-ender bought two years earlier (Locobase 14500). Like the Tonchala, this wood-burner also was to run "forward and backward."

The specs give a good outline of the railway on which the Zapata (named for civil engineer Felipe Zapata Cuenca) was to operate. It would be 75 miles (121 km) long when completed and use 55 lb/yard (27.5 kg/metre) rail. As it climbed out of the valley of the Rio Cauaca toward Pereira (1920), Villamaria (1925), and Manizales (1927), the line's maximum grade would reach 3% and curves would have radii as tight as 236 feet (71.9 metres) or 24 degrees. Water tanks were spaced 10 1/2 miles (16.9 km) apart. Also, "Locomotive to work at altitude of 6,500 feet [1,981 metres] above sea level." And the Radley & Hunter stack and spark arrestor were "to be efficient to avoid fires."

Principal Dimensions by Steve Llanso of Middle Run Media
ClassTonchalaZapata
Locobase ID14500 14501
RailroadFC de C+cutaFC de Caldas
CountryColombiaColombia
Whyte2-4-2ST2-4-2ST
Number in Class11
Road Numbers171
GaugeMetre3'
Number Built11
BuilderBaldwinBaldwin
Year19141916
Valve GearStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 4.50 / 1.37 4.50 / 1.37
Engine Wheelbase (ft / m)15.83 / 4.8215.83 / 4.82
Ratio of driving wheelbase to overall engine wheelbase 0.28 0.28
Overall Wheelbase (engine & tender) (ft / m)15.83 / 4.8215.83 / 4.82
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)17,000 / 771119,000 / 8618
Engine Weight (lbs / kg)28,000 / 12,70130,900 / 14,016
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)28,000 / 12,70130,900 / 14,016
Tender Water Capacity (gals / ML)400 / 1.52400 / 1.52
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)14 / 716 / 8
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)37 / 94037 / 940
Boiler Pressure (psi / kPa)150 / 1030150 / 1030
High Pressure Cylinders (dia x stroke) (in / mm)8" x 12" / 203x3058" x 12" / 203x305
Tractive Effort (lbs / kg)2646 / 1200.212646 / 1200.21
Factor of Adhesion (Weight on Drivers/Tractive Effort) 6.42 7.18
Heating Ability
Tubes (number - dia) (in / mm)56 - 1.75" / 4456 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 7.35 / 2.24 7.35 / 2.24
Firebox Area (sq ft / m2)30.40 / 2.8230 / 2.79
Grate Area (sq ft / m2) 5.60 / 0.52 4.70 / 0.44
Evaporative Heating Surface (sq ft / m2)217 / 20.16216 / 20.07
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)217 / 20.16216 / 20.07
Evaporative Heating Surface/Cylinder Volume310.83309.40
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation840705
Same as above plus superheater percentage840705
Same as above but substitute firebox area for grate area45604500
Power L148894849
Power MT1268.051125.28

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