Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 28, p. 183. Works number was 27147 in December 1905.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Progreso |
| Locobase ID | 12886 |
| Railroad | Pacifico |
| Country | Nicaragua |
| Whyte | 2-6-0 |
| Number in Class | 1 |
| Road Numbers | Uno |
| Gauge | Metre |
| Number Built | 1 |
| Builder | Burnham, Williams & Co |
| Year | 1905 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 11.92 / 3.63 |
| Engine Wheelbase (ft / m) | 19.42 / 5.92 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.61 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 78,000 / 35,380 |
| Engine Weight (lbs / kg) | 91,500 / 41,504 |
| Tender Loaded Weight (lbs / kg) | 73,000 / 33,112 |
| Total Engine and Tender Weight (lbs / kg) | 164,500 / 74,616 |
| Tender Water Capacity (gals / ML) | 3000 / 11.36 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 43 / 21.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 54 / 1372 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 17" x 24" / 432x610 |
| Tractive Effort (lbs / kg) | 19,652 / 8914.01 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.97 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 190 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11.08 / 3.38 |
| Firebox Area (sq ft / m2) | 102.40 / 9.52 |
| Grate Area (sq ft / m2) | 17 / 1.58 |
| Evaporative Heating Surface (sq ft / m2) | 1197 / 111.25 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1197 / 111.25 |
| Evaporative Heating Surface/Cylinder Volume | 189.85 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3060 |
| Same as above plus superheater percentage | 3060 |
| Same as above but substitute firebox area for grate area | 18,432 |
| Power L1 | 4391 |
| Power MT | 372.33 |