Hutchinson Sugar Plantation 0-4-2 Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class Honuapo (Locobase 14524)

Data from Baldwin Locomotive Works Specification for Engines, as digitized by the DeGolyer Library of Southern Methodist University, Volume 54, p. 404. See also Melody Lassalle, "Sugar Plantation Histories: Island of Hawaii" at Island Routes, and the Hawaiian Sugar Planters' Association Plantation Archives entry at . Works number was 45438 in April 1917.

Hutchinson had been established 65 miles(105 km) southwest of Hilo on the Big Island of Hawai'i in 1868, making it one of the oldest sugar plantations in the islands as well as the one that lay farthest south. Renamed Naalehu Sugar Plantation for the mill's town soon afterward, it reverted to HSP in 1879 when Hutchinson died and William G Irwin and Claud Spreckels bought the assets.

The Plantation Archives entry notes that this was a small plantation that nonetheless grew cane on 7 1/2 sq miles (1,943 hectares) from sea level to 2,000 feet (610 metres). The altitude and variable rainfall affected growing times, say the authors: "The bulk of the cane lands were above the 1,600-ft.[488 metre] level. The cane at the lower levels of the plantation matured in 18 months, whereas, the cane at higher elevations required from 24 to 30 months to mature."

In addition to the eight miles (13 km) of railway, the plantation used 70 miles (113 km) of flumes to transport the cane to the mill.

C Brewer & Company bought the company in 1910, but retained the name.

Specifications by Steve Llanso of Sweat House Media
Locobase ID14,524
RailroadHutchinson Sugar Plantation
Number in Class1
Road NumbersHonuapo
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft) 3.75
Engine Wheelbase (ft) 9.58
Ratio of driving wheelbase to overall engine wheebase 0.39
Overall Wheelbase (engine & tender) (ft) 9.58
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)20,500
Engine Weight (lbs)26,700
Tender Light Weight (lbs)
Total Engine and Tender Weight (lbs)26,700
Tender Water Capacity (gals)300
Tender Fuel Capacity (oil/coal) (gals/tons)
Minimum weight of rail (calculated) (lb/yd)17
Geometry Relating to Tractive Effort
Driver Diameter (in)26
Boiler Pressure (psi)150
High Pressure Cylinders (dia x stroke) (in)8" x 12"
Tractive Effort (lbs)3766
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.44
Heating Ability
Firebox Area (sq ft)25
Grate Area (sq ft)6
Evaporative Heating Surface (sq ft)175
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)175
Evaporative Heating Surface/Cylinder Volume250.67
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation900
Same as above plus superheater percentage900
Same as above but substitute firebox area for grate area3750
Power L12793
Power MT600.73

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