Kukaiau Plantation 0-4-2 Locomotives of 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 http://www2.hawaii.edu/~speccoll/p_hamakua.html . 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).

Specifications 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 3.33'
Engine Wheelbase 7.83'
Ratio of driving wheelbase to overall engine wheebase 0.43
Overall Wheelbase (engine & tender) 7.83'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers13000 lbs
Engine Weight18000 lbs
Tender Light Weight
Total Engine and Tender Weight18000 lbs
Tender Water Capacity250 gals
Tender Fuel Capacity (oil/coal)150 gals
Minimum weight of rail (calculated)11 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter24"
Boiler Pressure150 psi
Cylinders (dia x stroke)7" x 10"
Tractive Effort2603 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.99
Heating Ability
Firebox Area20 sq. ft
Grate Area 4.53 sq. ft
Evaporative Heating Surface132 sq. ft
Superheating Surface
Combined Heating Surface132 sq. ft
Evaporative Heating Surface/Cylinder Volume296.35
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 L13125
Power MT1059.91

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