Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 29, p. 202. Works numbers were 28785-28786 in August 1906.
About as small a locomotive as rolled on 8 wheels. The two were produced to the order of the Arthur Koppel Company.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 2 |
| Locobase ID | 13016 |
| Railroad | Sucreries de Porto Rico |
| Country | USA-Puerto Rico |
| Whyte | 0-4-4T |
| Number in Class | 1 |
| Road Numbers | 2-3 |
| Gauge | 60 cm |
| Number Built | 1 |
| Builder | Burnham, Williams & Co |
| Year | 1906 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 3.67 / 1.12 |
| Engine Wheelbase (ft / m) | 11.75 / 3.58 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.31 |
| Overall Wheelbase (engine & tender) (ft / m) | 11.75 / 3.58 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 12,000 / 5443 |
| Engine Weight (lbs / kg) | 21,000 / 9525 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| 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) | 10 / 5 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 26 / 660 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 7" x 12" / 178x305 |
| Tractive Effort (lbs / kg) | 3076 / 1395.25 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.90 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 46 - 1.5" / 38 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 6.17 / 1.88 |
| Firebox Area (sq ft / m2) | 20.10 / 1.87 |
| Grate Area (sq ft / m2) | 3.70 / 0.34 |
| Evaporative Heating Surface (sq ft / m2) | 130 / 12.08 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 130 / 12.08 |
| Evaporative Heating Surface/Cylinder Volume | 245.28 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 592 |
| Same as above plus superheater percentage | 592 |
| Same as above but substitute firebox area for grate area | 3216 |
| Power L1 | 3015 |
| Power MT | 1107.82 |