Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 66, pp. 91+. Works numbers were 58418 in May 1925.
Low-grade lignite could generate BTU levels as low as 9,500 and contain 21% ash. But when it was all that was readily available, it would serve as a fuel. The firebox on this Mike was Woottenesqe in its width (as a percentage of gauge) to handle this friable fuel. It was identical to the 2-8-2s and 4-6-2s of the Antioquia shown in Locobases 15068 and 12691, but both of those classes burned oil.
To help get the most out of the lignite in such a small engine, direct heating surface was augmented by 12 sq ft (1.1 sq m) and superheated steam entered the cylinders through 8" (203 mm) piston valves.
At some later date, the 4 went to the Ferrocarril de Ambalema-IbaguT and ultimately, in 1953, donned the National Railways herald and road number 42.
Principal Dimensions by Steve Llanso of Middle Run Media | |
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Class | 9 |
Locobase ID | 15365 |
Railroad | Caldas |
Country | Colombia |
Whyte | 2-8-2 |
Number in Class | 1 |
Road Numbers | 9 / 42 |
Gauge | 3' |
Number Built | 1 |
Builder | Baldwin |
Year | 1925 |
Valve Gear | Walschaert |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 10 / 3.05 |
Engine Wheelbase (ft / m) | 23.92 / 7.29 |
Ratio of driving wheelbase to overall engine wheelbase | 0.42 |
Overall Wheelbase (engine & tender) (ft / m) | 44.21 / 13.48 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 72,000 / 32,659 |
Engine Weight (lbs / kg) | 96,300 / 43,681 |
Tender Loaded Weight (lbs / kg) | 37,700 / 17,100 |
Total Engine and Tender Weight (lbs / kg) | 134,000 / 60,781 |
Tender Water Capacity (gals / ML) | 1600 / 6.06 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 30 / 15 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 34 / 864 |
Boiler Pressure (psi / kPa) | 180 / 1240 |
High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 18" / 381x457 |
Tractive Effort (lbs / kg) | 18,225 / 8266.73 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.95 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 85 - 2" / 51 |
Flues (number - dia) (in / mm) | 12 - 5.375" / 137 |
Flue/Tube length (ft / m) | 13 / 3.96 |
Firebox Area (sq ft / m2) | 97 / 7.90 |
Grate Area (sq ft / m2) | 28.50 / 2.65 |
Evaporative Heating Surface (sq ft / m2) | 890 / 82.68 |
Superheating Surface (sq ft / m2) | 185 / 17.19 |
Combined Heating Surface (sq ft / m2) | 1075 / 99.87 |
Evaporative Heating Surface/Cylinder Volume | 241.75 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 5130 |
Same as above plus superheater percentage | 6002 |
Same as above but substitute firebox area for grate area | 20,428 |
Power L1 | 8423 |
Power MT | 1031.64 |