Data from "Baldwin 12-Wheeler Ferro-Carril De Yaguajay," Railway Master Mechanic, Vol XXX, #4 (April 1906), p. 121. See also DeGolyer, Volume 28, p. 158. Works number was 26926 in November 1905.
The Yaguajay was a narrow-gauge railroad in the Santa Clara province that served several larger sugar plantations as well as other freight customers over grades that amounted to 3 1/2% in some sections. Baldwin's cabbage-stacked, wood-burning Twelve-wheeler had an outside frame, enough axles to reduce the wheel loading, and a bogie truck to reduce driver flange wear in the sharp curves. In the specification, an additional instruction required the builer to see "that there is ample clearance between eng[ine] and tender, when on curve."
This powerful engine was rated at 112-128 tons up the steepest grade. Its weight called fore "all springs one plate heavier than necessary." Its tender wood and water capacity were required to be sufficient for a run of 35 kilometres (21.7 miles).
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 3 |
| Locobase ID | 10471 |
| Railroad | FC de Yagaujay |
| Country | Cuba |
| Whyte | 4-8-0 |
| Number in Class | 1 |
| Road Numbers | 3 |
| Gauge | 70 cm |
| Number Built | 1 |
| Builder | Burnham, Williams & Co |
| Year | 1905 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 9.83 / 3 |
| Engine Wheelbase (ft / m) | 18.50 / 5.64 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.53 |
| Overall Wheelbase (engine & tender) (ft / m) | 48 / 14.63 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 61,450 / 27,873 |
| Engine Weight (lbs / kg) | 74,450 / 33,770 |
| Tender Loaded Weight (lbs / kg) | 31,550 / 14,311 |
| Total Engine and Tender Weight (lbs / kg) | 106,000 / 48,081 |
| Tender Water Capacity (gals / ML) | 2500 / 9.47 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 26 / 13 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 30 / 762 |
| Boiler Pressure (psi / kPa) | 170 / 1170 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 14" x 16" / 356x406 |
| Tractive Effort (lbs / kg) | 15,105 / 6851.52 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.07 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 100 - 2.25" / 57 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 16.10 / 4.91 |
| Firebox Area (sq ft / m2) | 48.40 / 4.50 |
| Grate Area (sq ft / m2) | 12.10 / 1.12 |
| Evaporative Heating Surface (sq ft / m2) | 986 / 91.64 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 986 / 91.64 |
| Evaporative Heating Surface/Cylinder Volume | 345.88 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2057 |
| Same as above plus superheater percentage | 2057 |
| Same as above but substitute firebox area for grate area | 8228 |
| Power L1 | 3662 |
| Power MT | 525.52 |