Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 28, p. 284. Works number was 27694 in February 1906, 34030 in November 1909, and 36980 in November 1911.
A unifying characteristic of most sugar-plantation locomotives was their tiny size. The Decluy and her sisters (2 wasn't named, but 3 carried the name Coloso) served a plantation that had been refining sugar since 1875 in the vicinity of Aguadilla on the northwest coast of Puerto Rico. As the company passed through German, Puerto Rican, and, at the time of the purchase, French hands, its 4,370 acres were cropped about 500 acres at a time. In 1915, ownership passed to an American group.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Decluy |
| Locobase ID | 12951 |
| Railroad | Central Sucrerie Coloso |
| Country | USA-Puerto Rico |
| Whyte | 0-4-2T |
| Number in Class | 3 |
| Road Numbers | 1-3 |
| Gauge | 50 cm |
| Number Built | 3 |
| Builder | Burnham, Williams & Co |
| Year | 1906 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 3 / 0.91 |
| Engine Wheelbase (ft / m) | 7.75 / 2.36 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.39 |
| Overall Wheelbase (engine & tender) (ft / m) | 7.75 / 2.36 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 11,000 / 4990 |
| Engine Weight (lbs / kg) | 15,000 / 6804 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 150 / 0.57 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 9 / 4.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 24 / 610 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 6" x 10" / 152x254 |
| Tractive Effort (lbs / kg) | 2040 / 925.33 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.39 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 44 - 1.5" / 38 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 5.25 / 1.60 |
| Firebox Area (sq ft / m2) | 17.30 / 1.61 |
| Grate Area (sq ft / m2) | 3.90 / 0.36 |
| Evaporative Heating Surface (sq ft / m2) | 107 / 9.94 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 107 / 9.94 |
| Evaporative Heating Surface/Cylinder Volume | 324.24 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 624 |
| Same as above plus superheater percentage | 624 |
| Same as above but substitute firebox area for grate area | 2768 |
| Power L1 | 3753 |
| Power MT | 1504.35 |