Hawaiian 0-4-4 "Forney" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class Kinau (Locobase 11788)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 10a, p. 215.

Originally to be called Kalamanui, this little tank was renamed in Philadelphia. Kinaut was sold to the Kahului Railroad in September 1884 and renumbered 2.

Some time later, the Kinau gave up one of its trailing trucks in favor of a six-wheel tender, thus becoming an 0-4-2.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID11788
CountryHawaiian Kingdom
Number in Class1
Road Numbers1
Number Built1
BuilderBurnham, Parry, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)4 / 1.22
Engine Wheelbase (ft / m)14.33 / 4.37
Ratio of driving wheelbase to overall engine wheelbase 0.28
Overall Wheelbase (engine & tender) (ft / m)14.33 / 4.37
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)16,000 / 7257
Engine Weight (lbs / kg)23,000 / 10,433
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)23,000
Tender Water Capacity (gals / ML)400 / 1.52
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)13 / 6.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)30 / 762
Boiler Pressure (psi / kPa)130 / 9
High Pressure Cylinders (dia x stroke) (in / mm)9" x 14" / 229x356
Tractive Effort (lbs / kg)4177 / 1894.66
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.83
Heating Ability
Tubes (number - dia) (in / mm)56 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 6.65 / 2.03
Firebox Area (sq ft / m2)27 / 2.51
Grate Area (sq ft / m2) 6.70 / 0.62
Evaporative Heating Surface (sq ft / m2)197 / 18.31
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)197 / 18.31
Evaporative Heating Surface/Cylinder Volume191.26
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation871
Same as above plus superheater percentage871
Same as above but substitute firebox area for grate area3510
Power L12095
Power MT577.33

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