Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 20, p. 108. Purl Lord Bell, Colombia: a commercial and industrial handbook (United States. Dept. of Commerce, Bureau of Foreign and , 1921), p. 296. Works number was 14766 in March 1896.
Just so the shops would know just what level of challenge lay ahead for this little tank-with-tender locomotive, the specs described the fuel as "rather poor wood." And the railway presented the engine with 4-4.2% grades to scale, but relatively gentle curves of 231 metres (less than 5-deg) radii.
Trailing the tender behind the tank engine conferred two benefits, Locobase surmises. In additional to the extra water available in a dry region and room for the 3 cords of wood this locomotive needed to carry, the 700 gallons of water in the side tanks contributed almost 3 tons of adhesive weight.
According to Bell's 1921 report of "expert opinion", many Colombian railways should never have been built or been built elsewhere. The Antioquia qualified: "The Antioquia Railway from Puerto Berrio to Medellin (as yet uncompleted) was also badly located; it should have been constructed down the Porce Valley to the north from Medellin to seek a direct rail outlet to the sea at Cartagena, thus obviating the necessity of the long 400-mile river haul, always slow and costly, and at the same time opening up a rich mining and agricultural section in the Departments of Antioquia and Bolivar.
Principal Dimensions by Steve Llanso of Middle Run Media | |
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Class | Bonifacio Velez |
Locobase ID | 12221 |
Railroad | FC de Antioquia |
Country | Colombia |
Whyte | 2-6-2T |
Number in Class | 1 |
Road Numbers | 1 |
Gauge | 3' |
Number Built | 1 |
Builder | Burnham, Williams & Co |
Year | 1896 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 8.50 / 2.59 |
Engine Wheelbase (ft / m) | 23.92 / 7.29 |
Ratio of driving wheelbase to overall engine wheelbase | 0.36 |
Overall Wheelbase (engine & tender) (ft / m) | 43.33 / 13.21 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 55,000 / 24,948 |
Engine Weight (lbs / kg) | 69,000 / 31,298 |
Tender Loaded Weight (lbs / kg) | 30,000 / 13,608 |
Total Engine and Tender Weight (lbs / kg) | 99,000 / 44,906 |
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) | 31 / 15.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 38 / 965 |
Boiler Pressure (psi / kPa) | 180 / 1240 |
High Pressure Cylinders (dia x stroke) (in / mm) | 14" x 18" / 356x457 |
Tractive Effort (lbs / kg) | 14,205 / 6443.29 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.87 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 95 - 2" / 51 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 12.42 / 3.79 |
Firebox Area (sq ft / m2) | 66 / 6.13 |
Grate Area (sq ft / m2) | 9.40 / 0.87 |
Evaporative Heating Surface (sq ft / m2) | 679 / 63.10 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 679 / 63.10 |
Evaporative Heating Surface/Cylinder Volume | 211.72 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 1692 |
Same as above plus superheater percentage | 1692 |
Same as above but substitute firebox area for grate area | 11,880 |
Power L1 | 3587 |
Power MT | 431.34 |