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, Vol 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 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 move 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 Sweat House Media
Locobase ID14,752
RailroadPaauhau Sugar Plantation Company
Number in Class1
Road Numbers3
Number Built1
Valve GearStephenson
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 wheebase1
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)19,000
Tender Water Capacity (gals / ML)200 / 0.76
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)60 / 0.20
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 / 11
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
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 Volume207.67
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation752
Same as above plus superheater percentage752
Same as above but substitute firebox area for grate area3200
Power L12526
Power MT879.30

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Wes Barris