Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 78, pp. 195 and Vol 79, p. 185. Works numbers were 58043 in September 1924, 58324 in March 1925, 59637 in November 1926, and 60610-60611 in September 1928.
These bi-fuel (coal and wood) locomotives had both a saddle tank (600 US gallons/2,271 litres) and a separate tender. They were in fact duplicates of the Valera , the small saddle-tank sold to the Roncajolos' other railway, the FC de la Ceiba (Locobase 15076). As the specifications warn, these locomotives were to operate over rough track.
After the Colon came the Cucuta, America, Maracaibo, and La Grita.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Colon |
| Locobase ID | 15384 |
| Railroad | Gran Ferrocarril del Tachira |
| Country | Venezuela |
| Whyte | 0-6-0ST |
| Number in Class | 5 |
| Road Numbers | 8-12 |
| Gauge | Metre |
| Number Built | 5 |
| Builder | Baldwin |
| Year | 1924 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 8.08 / 2.46 |
| Engine Wheelbase (ft / m) | 8.08 / 2.46 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 29.83 / 9.09 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 49,500 / 22,453 |
| Engine Weight (lbs / kg) | 49,500 / 22,453 |
| Tender Loaded Weight (lbs / kg) | 23,000 / 10,433 |
| Total Engine and Tender Weight (lbs / kg) | 72,500 / 32,886 |
| Tender Water Capacity (gals / ML) | 1700 / 6.44 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 28 / 14 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 33 / 838 |
| Boiler Pressure (psi / kPa) | 185 / 1280 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 11" x 16" / 279x406 |
| Tractive Effort (lbs / kg) | 9225 / 4184.39 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.37 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 110 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 8 / 2.44 |
| Firebox Area (sq ft / m2) | 54 / 5.02 |
| Grate Area (sq ft / m2) | 10.70 / 0.99 |
| Evaporative Heating Surface (sq ft / m2) | 453 / 42.08 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 453 / 42.08 |
| Evaporative Heating Surface/Cylinder Volume | 257.40 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1980 |
| Same as above plus superheater percentage | 1980 |
| Same as above but substitute firebox area for grate area | 9990 |
| Power L1 | 4180 |
| Power MT | 558.50 |