Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 79, pp. 114+. Works number was 59969 in April 1927.
This little wood-burning tank used a chubby Rushton Improved spark-arresting cabbage stack to reduce the chance of accidental fires along the right of way. Its relatively long wheelbase put less than 1 1/2 tons per foot on the rail. The specifications shed light on the difficulties met when delivering locomotives to mountainous narrow-gauge lines like the A-I. "Packages to be reduced to minimum sizes and weights for transportation to the interior of Colombia. All small pieces to be packed in boxes weighing 220 lbs (100 kilos) as far as possible."
Principal Dimensions by Steve Llanso of Middle Run Media | |
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Class | 2 |
Locobase ID | 15430 |
Railroad | Ambalema-IbaguT |
Country | Colombia |
Whyte | 2-4-2T |
Number in Class | 1 |
Road Numbers | 2 / |
Gauge | 3' |
Number Built | 1 |
Builder | Baldwin |
Year | 1927 |
Valve Gear | Walschaert |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 5 / 1.52 |
Engine Wheelbase (ft / m) | 19 / 5.79 |
Ratio of driving wheelbase to overall engine wheelbase | 0.26 |
Overall Wheelbase (engine & tender) (ft / m) | 19 / 5.79 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 37,000 / 16,783 |
Engine Weight (lbs / kg) | 55,000 / 24,948 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | |
Tender Water Capacity (gals / ML) | 700 / 2.65 |
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) | 33 / 838 |
Boiler Pressure (psi / kPa) | 165 / 1140 |
High Pressure Cylinders (dia x stroke) (in / mm) | 11" x 16" / 279x406 |
Tractive Effort (lbs / kg) | 8228 / 3732.16 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.50 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 106 - 1.75" / 44 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 8.83 / 2.69 |
Firebox Area (sq ft / m2) | 43 / 3.99 |
Grate Area (sq ft / m2) | 9.50 / 0.88 |
Evaporative Heating Surface (sq ft / m2) | 468 / 43.48 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 468 / 43.48 |
Evaporative Heating Surface/Cylinder Volume | 265.93 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 1568 |
Same as above plus superheater percentage | 1568 |
Same as above but substitute firebox area for grate area | 7095 |
Power L1 | 3522 |
Power MT | 419.71 |