Kaluhui Wailuku & Hamakuapoko 0-4-2 Type Locomotives

Class Details by Steve Llanso

Class Kalakaua (Locobase 11769)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 9, p. 234. Works numbers were 4908 in December 1879 and 6102 in March 1882.

The KW&H was a Maui-based railroad that was the first to be opened in the Hawaiian Kingdom when Captain Thomas Hobron cut the ribbon in 1879. Lightly built at 20 lb/yard, the railway nevertheless opened up the sugar and pineapple planations to easy access to the port of Kahului.

And despite the petite dimensions more usually found in a plantation locomotive, the Kalakaua and its 1882 stablemate Claus Spreckels pulled trains providing common-carrier service. The little Forneys would remain in service all over the island well into the 20th Century. The Claus was donated in 1967 to Bernice Pauahi Bishop, who renamed it Kahakaloa. In 1985 it was leased to the Alexander & Baldwin Sugar Museum.

Specifications by Steve Llanso
Locobase ID11769
RailroadKaluhui Wailuku & Hamakuapoko
CountryHawaiian Kingdom
Road Numbers
BuilderBurnham, Parry, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase 3.75'
Engine Wheelbase 9.58'
Ratio of driving wheelbase to overall engine wheebase 0.39
Overall Wheelbase (engine & tender) 9.58'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers
Engine Weight16500 lbs
Tender Light Weight
Total Engine and Tender Weight16500 lbs
Tender Water Capacity250 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated) on which locomotive could run0
Geometry Relating to Tractive Effort
Driver Diameter28"
Boiler Pressure130 psi
Cylinders (dia x stroke)8" x 12"
Tractive Effort3031 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Firebox Area25 sq. ft
Grate Area 6.30 sq. ft
Evaporative Heating Surface175 sq. ft
Superheating Surface
Combined Heating Surface175 sq. ft
Evaporative Heating Surface/Cylinder Volume250.67
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation819
Same as above plus superheater percentage819
Same as above but substitute firebox area for grate area3250
Power L12607
Power MT


Introduction and roster provided by Richard Duley. Class details and specifications provided by Steve Llanso of Sweat House Media.