FC de Antioquia 2-8-0 Locomotives in Colombia


Class Details by Steve Llanso of Sweat House Media

Class 25 (Locobase 14007)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 44, p. 235. Works numbers were 39457-39458 in March 1913.

These small superheated, wood-burning Consolidations provided useful power to this high-altitude railway. The specs alerted the builder to the maximum grades of 4 1/2%, minimum radii of 70 metres (230 ft), and truly skinny rails weighing 45 lb/yard (22.5 kg/metre).


Class 9 (Locobase 12588)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 24, p. 159. See also Carlos A Mejias, "La controversia tecnica en la segunda mitad del siglo XIX en Colombia: Los ferrocarriles y el ancho de la trocha," paper presented at the IV Congreso Latinoamericano de Historia de last Ciencias y la Tecnologia, Cali, Colombia, 24-27 January 1995. Works numbers were 19990-19991 in January 1902.

Locobase 12189 notes the challenging profile of the railroad that awaited this pair of Consolidations. Six years after the delivered the small tank locomotive described in that entry, the fuel was still characterized as "very poor wood" and the twists and grades still posed significant obstacles to hauling freight.

In the paper cited above, Mejias reports that Alejandro Lopez, an engineer he describes as "a visionary", specifically criticized this design as a "technical fiasco". An effort to bring the center of gravity as low as possible did in fact reduce derailments, he noted, but the engines were retired early because their wheels beat the lightly built track mercilessly by pounding on the inside faces of the rails

Principal Dimensions by Steve Llanso of Middle Run Media
Class259
Locobase ID14007 12588
RailroadFC de AntioquiaFC de Antioquia
CountryColombiaColombia
Whyte2-8-02-8-0
Number in Class22
Road Numbers25, 299-10
Gauge3'3'
Number Built22
BuilderBaldwinBurnham, Williams & Co
Year19131902
Valve GearWalschaertWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)9 / 2.749 / 2.74
Engine Wheelbase (ft / m)16.50 / 5.0315.92 / 4.85
Ratio of driving wheelbase to overall engine wheelbase 0.55 0.57
Overall Wheelbase (engine & tender) (ft / m)40.79 / 12.4340.58 / 12.37
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)74,000 / 33,56674,500 / 33,793
Engine Weight (lbs / kg)83,000 / 37,64883,500 / 37,875
Tender Loaded Weight (lbs / kg)38,000 / 17,23737,000 / 16,783
Total Engine and Tender Weight (lbs / kg)121,000 / 54,885120,500 / 54,658
Tender Water Capacity (gals / ML)1600 / 6.061500 / 5.68
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)31 / 15.5031 / 15.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)34 / 86434 / 864
Boiler Pressure (psi / kPa)180 / 1240180 / 1240
High Pressure Cylinders (dia x stroke) (in / mm)15" x 18" / 381x45715" x 18" / 381x457
Tractive Effort (lbs / kg)18,225 / 8266.7318,225 / 8266.73
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.06 4.09
Heating Ability
Tubes (number - dia) (in / mm)85 - 2" / 51170 - 2" / 51
Flues (number - dia) (in / mm)12 - 5.375" / 137
Flue/Tube length (ft / m)13 / 3.9613.04 / 3.97
Firebox Area (sq ft / m2)78 / 7.2572.90 / 6.78
Grate Area (sq ft / m2)15.20 / 1.4118.75 / 1.74
Evaporative Heating Surface (sq ft / m2)871 / 80.921226 / 113.94
Superheating Surface (sq ft / m2)178 / 16.54
Combined Heating Surface (sq ft / m2)1049 / 97.461226 / 113.94
Evaporative Heating Surface/Cylinder Volume236.58333.01
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation27363375
Same as above plus superheater percentage32013375
Same as above but substitute firebox area for grate area16,42713,122
Power L179324407
Power MT945.25521.65

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