Paauhau Sugar Plantation Company 0-6-0 "Switcher" Locomotives in the USA
Class Details by Steve Llanso of Sweat House Media
Class 3 (Locobase 14752)
Data from DeGolyer, Volume 63, pp. 229. See also Paauhau Sugar Plantation Company, Hawaiian Sugar Planters Association archives at [
] and Prosper Quentin Tomich, "Sugar Plantations and their Railroad Era, 1879-1947", Hawaii: Perspectives on Hamakua History, (self-published, 2008, ISBN 978-0-615-25676-4), pp. 92-94. Works number was 54410 in January 1921.
This plantation's sugar mill was perched on a cliff 400 feet (121.4 m) above the ocean on the northern coast of the Big Island about 50 miles (80 km) from Hilo. Much of the cane came down from the fields in the foothills on a cane-car gravity-driven system of parallel tracks. As the full car came down one track toward the mill, its cable feed pulled its empty opposite number on the other track back up to the fields.
Water supply was only fitfully supplied by water courses in this part of Hawaii, so Paauhau management contracted with Hawaiian Irrigation Company to deliver 20,000,000 gallons of water per day and built two reservoirs.
The (very) little (very) saddle tank shown in this entry moved cane cars on the level stretches closer to the mill. Prosper Tomich documents this engine's transformation into a prime mover that used a Ford V-8 fueled by gasoline driving the transmission from a Best-60 tractor to turn the rear axle. The original side (coupling) rods turned the other two axles. Berlinda Rapozo Camara remembered later how noisy the engine was as it pulled her car full of schoolchildren to and from school. See Locobase 15492 for another Ford V-8 conversion, this time of a full-sized 2-6-0 in Louisiana.
By 1945, the railway was closed.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 3 |
| Locobase ID | 14752 |
| Railroad | Paauhau Sugar Plantation Company |
| Country | USA |
| Whyte | 0-6-0ST |
| Number in Class | 1 |
| Road Numbers | 3 |
| Gauge | 2'6" |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1921 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 5.25 / 1.60 |
| Engine Wheelbase (ft / m) | 5.25 / 1.60 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 5.25 / 1.60 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 19,000 / 8618 |
| Engine Weight (lbs / kg) | 19,000 / 8618 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 200 / 0.76 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 60 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 11 / 5.50 |
| 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) | 7" x 12" / 178x305 |
| Tractive Effort (lbs / kg) | 3332 / 1511.37 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.70 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 30 - 1.5" / 38 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 7.83 / 2.39 |
| Firebox Area (sq ft / m2) | 20 / 1.86 |
| Grate Area (sq ft / m2) | 4.70 / 0.44 |
| Evaporative Heating Surface (sq ft / m2) | 111 / 10.31 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 111 / 10.31 |
| Evaporative Heating Surface/Cylinder Volume | 209.43 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 752 |
| Same as above plus superheater percentage | 752 |
| Same as above but substitute firebox area for grate area | 3200 |
| Power L1 | 2548 |
| Power MT | 886.95 |