Kaluhui Wailuku & Hamakuapoko 0-4-2 Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

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 (10 kg/metre), 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.

Principal Dimensions by Steve Llanso of Middle Run Media

Locobase ID11769
RailroadKaluhui Wailuku & Hamakuapoko
CountryHawaiian Kingdom
Number in Class2
Road Numbers
Number Built2
BuilderBurnham, Parry, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 3.75 / 1.14
Engine Wheelbase (ft / m) 9.58 / 2.92
Ratio of driving wheelbase to overall engine wheelbase 0.39
Overall Wheelbase (engine & tender) (ft / m) 9.58 / 2.92
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)
Engine Weight (lbs / kg)16,500 / 7484
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)16,500
Tender Water Capacity (gals / ML)250 / 0.95
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)28 / 711
Boiler Pressure (psi / kPa)130 / 9
High Pressure Cylinders (dia x stroke) (in / mm)8" x 12" / 203x305
Tractive Effort (lbs / kg)3031 / 1374.84
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)58 - 1.5" / 38
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 6.65 / 2.03
Firebox Area (sq ft / m2)25 / 2.32
Grate Area (sq ft / m2) 6.30 / 0.59
Evaporative Heating Surface (sq ft / m2)175 / 16.26
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)175 / 16.26
Evaporative Heating Surface/Cylinder Volume250
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 L12600
Power MT

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