Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 79, pp. 70+. Works numbers were 60586-60589 in August 1928.
These were small Mikados, even smaller than the numerous saturated-boiler Consolidations shown in Locobase 15258. They shared a lot of dimensions with those 2-8-0s, but had superheated boilers and 8" (203 mm) piston valves. At the same time, the IRCA bought somewhat larger 2-8-2s, which appear in Locobase 15424.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 140 |
| Locobase ID | 15423 |
| Railroad | International Railway of Central America |
| Country | El Salvador |
| Whyte | 2-8-2 |
| Number in Class | 4 |
| Road Numbers | 140-143 / 126-129 |
| Gauge | 3' |
| Number Built | 4 |
| Builder | Baldwin |
| Year | 1928 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 11 / 3.35 |
| Engine Wheelbase (ft / m) | 25 / 7.62 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.44 |
| Overall Wheelbase (engine & tender) (ft / m) | 47.62 / 14.51 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 81,000 / 36,741 |
| Engine Weight (lbs / kg) | 101,000 / 45,813 |
| Tender Loaded Weight (lbs / kg) | 70,000 / 31,752 |
| Total Engine and Tender Weight (lbs / kg) | 171,000 / 77,565 |
| Tender Water Capacity (gals / ML) | 3000 / 11.36 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1500 / 5678 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 34 / 17 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 40 / 1016 |
| Boiler Pressure (psi / kPa) | 185 / 1280 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 16" x 20" / 406x508 |
| Tractive Effort (lbs / kg) | 20,128 / 9129.92 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.02 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 90 - 2" / 51 |
| Flues (number - dia) (in / mm) | 15 - 5.375" / 137 |
| Flue/Tube length (ft / m) | 14.17 / 4.32 |
| Firebox Area (sq ft / m2) | 81 / 7.53 |
| Grate Area (sq ft / m2) | 18.70 / 1.74 |
| Evaporative Heating Surface (sq ft / m2) | 1042 / 96.84 |
| Superheating Surface (sq ft / m2) | 235 / 21.84 |
| Combined Heating Surface (sq ft / m2) | 1277 / 118.68 |
| Evaporative Heating Surface/Cylinder Volume | 223.88 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3460 |
| Same as above plus superheater percentage | 4082 |
| Same as above but substitute firebox area for grate area | 17,682 |
| Power L1 | 9439 |
| Power MT | 1027.63 |