Data from DeGolyer, Vol 54, p. 243. Works number was 45935 in July 1917.
Locobase can't say for sure if this was the first Type E superheater to be installed, but it must have one of the earliest. The double-loop superheater served a little plantation Mogul and its separate specification within the Baldwin spec shows that only two of the tubes in the boiler were as small as 2" (50.8 mm) diameter. Six more tubes measured 3" (76.2 mm) and the 24 flues that held the twelve double-looped elements had the same diameter. The firebox burned anthracite coal and the smokebox was topped by a cabbage stack. Six inch (254 mm) piston valves admitted the steam to the cylinders. At the time of La Borda's arrival in Santo Domingo District, the San Jose, while still one of the smallest plantations in the DR, was expected to grow considerably in the next couple of years. It offered what must have seemed impossibly tight curve radii of 85 feet/25.9 metres.
Principal Dimensions by Steve Llanso of Sweat House Media | |
|---|---|
| Class | La Borda |
| Locobase ID | 14479 |
| Railroad | San Jose |
| Country | Dominican Republic |
| Whyte | 2-6-0 |
| Number in Class | 1 |
| Road Numbers | 3 |
| Gauge | 2'6" |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1917 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7 / 2.13 |
| Engine Wheelbase (ft / m) | 12.75 / 3.89 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.55 |
| Overall Wheelbase (engine & tender) (ft / m) | 35.85 / 10.93 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 37,000 / 16,783 |
| Engine Weight (lbs / kg) | 43,000 / 19,504 |
| Tender Loaded Weight (lbs / kg) | 41,000 / 18,597 |
| Total Engine and Tender Weight (lbs / kg) | 84,000 / 38,101 |
| Tender Water Capacity (gals / ML) | 1800 / 6.82 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3.50 / 3 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 21 / 10.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 33 / 838 |
| Boiler Pressure (psi / kPa) | 185 / 12.80 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 11" x 16" / 279x406 |
| Tractive Effort (lbs / kg) | 9225 / 4184.39 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.01 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 2 - 2" / 51 |
| Flues (number - dia) (in / mm) | 30 - 3" / 76 |
| Flue/Tube length (ft / m) | 10.50 / 3.20 |
| Firebox Area (sq ft / m2) | 31 / 2.88 |
| Grate Area (sq ft / m2) | 7.50 / 0.70 |
| Evaporative Heating Surface (sq ft / m2) | 287 / 26.66 |
| Superheating Surface (sq ft / m2) | 90 |
| Combined Heating Surface (sq ft / m2) | 377 / 26.66 |
| Evaporative Heating Surface/Cylinder Volume | 163.08 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1388 |
| Same as above plus superheater percentage | 1721 |
| Same as above but substitute firebox area for grate area | 7111 |
| Power L1 | 7239 |
| Power MT | 1293.99 |