Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volumes 32. p. 306. Works number was 32991 in October 1908.
Ernst Wiener, a locomotive broker who supplied such engines to customers all around the Caribbean, delivered this engine to the island of Vieques, which lies off the southeastern Puerto Rican coast. Central Puerto Real occupied part of Vieques's southern coast between Central Playa Grande to the west and Puerto Ferro to the east.
Its troubled history included a long strike in 1915 that prompted Gustavo Mouraille, its owner, to sell the Central to a group (the successors of Enrique Bird Arias). The new owners had obviously leveraged the financing and could not make payments; they lost control to LWGP Armstrong in a 1921 lawsuit over an unpaid mortgage of US$1.73 million.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Puerto Real |
| Locobase ID | 13494 |
| Railroad | Central Puerto Real |
| Country | USA |
| Whyte | 0-4-2ST |
| Number in Class | 1 |
| Road Numbers | 1 |
| Gauge | 90 cm |
| Number Built | 1 |
| Builder | Burnham, Williams & Co |
| Year | 1908 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 3.75 / 1.14 |
| Engine Wheelbase (ft / m) | 9.58 / 2.92 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.39 |
| Overall Wheelbase (engine & tender) (ft / m) | 9.58 / 2.92 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 20,500 / 9299 |
| Engine Weight (lbs / kg) | 25,000 / 11,340 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 250 / 0.95 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 17 / 8.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 28 / 711 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 8" x 12" / 203x305 |
| Tractive Effort (lbs / kg) | 3730 / 1691.90 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.50 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 57 - 1.5" / 38 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 6.66 / 2.03 |
| Firebox Area (sq ft / m2) | 25 / 2.32 |
| Grate Area (sq ft / m2) | 6 / 0.56 |
| Evaporative Heating Surface (sq ft / m2) | 175 / 16.26 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 175 / 16.26 |
| Evaporative Heating Surface/Cylinder Volume | 250 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 960 |
| Same as above plus superheater percentage | 960 |
| Same as above but substitute firebox area for grate area | 4000 |
| Power L1 | 3200 |
| Power MT | 688.27 |