Ingenio Mercedes 0-4-2 Locomotives in Argentina
Class Details by Steve Llanso of Sweat House Media
Class Isaias Padilla (Locobase 15193)
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 66, p 432. See also an unusual view of Tucuman, The Garden of the Argentine Republic, in "Christina's" blog "The Thinking Stomach, "Argentina: Tucuman" entry dated 15 August 2010 at [
] . Works numbers were 54141-54142 in November 1920.
Located in Tucuman Province about 675 miles (1,085 km) northwest of Buenos Aires, the IM bought this wood-burning tank based on a design in widespread use. It was fitted with the Rushton Improved cabbage stack to swallow sparks. The second engine was named Jose Padilla.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Isaias Padilla |
| Locobase ID | 15193 |
| Railroad | Ingenio Mercedes |
| Country | Argentina |
| Whyte | 0-4-2T |
| Number in Class | 4 |
| Road Numbers | |
| Gauge | Metre |
| Number Built | 4 |
| Builder | Baldwin |
| Year | 1923 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 4.50 / 1.37 |
| Engine Wheelbase (ft / m) | 11 / 3.35 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.41 |
| Overall Wheelbase (engine & tender) (ft / m) | 11 / 3.35 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 35,200 / 15,966 |
| Engine Weight (lbs / kg) | 40,200 / 18,234 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 40,200 / 18,234 |
| Tender Water Capacity (gals / ML) | 500 / 1.89 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 29 / 14.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 33 / 838 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 10" x 16" / 254x406 |
| Tractive Effort (lbs / kg) | 6594 / 2990.99 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.34 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 83 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 7.67 / 2.34 |
| Firebox Area (sq ft / m2) | 35 / 3.25 |
| Grate Area (sq ft / m2) | 7 / 0.65 |
| Evaporative Heating Surface (sq ft / m2) | 323 / 30.01 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 323 / 30.01 |
| Evaporative Heating Surface/Cylinder Volume | 222.08 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1120 |
| Same as above plus superheater percentage | 1120 |
| Same as above but substitute firebox area for grate area | 5600 |
| Power L1 | 3013 |
| Power MT | 377.42 |