Kukaiau Plantation 0-4-2 Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class Kukaiau (Locobase 14523)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 54, pp. 402+. See also the Hawaiian Sugar Planters' Association Plantation Archives entry at [] . Works number was 44270 in October 1916.

Even though Baldwin built a number of plantation saddle tanks this small, few ran on such a narrow gauge. So the editor notes the following firebox dimensions to give an idea of the scale: 20 13/16" (529 mm) long, 31 3/8" (797 mm) wide, and 29 1/4" (743 mm) deep. The engine weighed a bit more than other similar engines because its saddle tank was considerably bigger.

Located on the Big Island in Hawai'i, the Kukaiau plantation was founded in 1884 some 38 miles (61 km) from Hilo. Its elevation ranged from 100 to 1,800 feet (30.5 m to 549 metres). At first cane haulage was supplied by cable railway. The steam railway's maximum grade was 2 1/2% on its three miles (4.8 km) of track.

KPC sold its assets to the Hamakua Plantation Company in 1914. Not long after this engine was delivered, the Kukaiau ground its final sugar-cane crop in 1917 and sold off both the mill and its boiling house to a Japanese company for installation on the island of Formosa (later Taiwan, but then a colony of Japan).

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID14523
RailroadKukaiau Plantation
Number in Class1
Road Numbers
Gauge20 in
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 3.33 / 1.01
Engine Wheelbase (ft / m) 7.83 / 2.39
Ratio of driving wheelbase to overall engine wheelbase 0.43
Overall Wheelbase (engine & tender) (ft / m) 7.83 / 2.39
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)13,000 / 5897
Engine Weight (lbs / kg)18,000 / 8165
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)18,000
Tender Water Capacity (gals / ML)250 / 0.95
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)150 / 568
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)150 / 10.30
High Pressure Cylinders (dia x stroke) (in / mm)7" x 10" / 178x254
Tractive Effort (lbs / kg)2603 / 1180.70
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.99
Heating Ability
Tubes (number - dia) (in / mm)46 - 1.5" / 38
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 6.26 / 1.91
Firebox Area (sq ft / m2)20 / 1.86
Grate Area (sq ft / m2) 4.53 / 0.42
Evaporative Heating Surface (sq ft / m2)132 / 12.27
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)132 / 12.27
Evaporative Heating Surface/Cylinder Volume293.33
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation680
Same as above plus superheater percentage680
Same as above but substitute firebox area for grate area3000
Power L13093
Power MT1049.06

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