Paauhau Sugar Company 0-4-2 Locomotives of the USA


Class Details by Steve Llanso of Sweat House Media

Class 8 (Locobase 11543)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 26, p. 123. Works number 22760 in August 1903

Sold to W F Irwin & Company, this little tank was one of two that pulled trains assembled from the 250 cane cars they had available on the 15 miles of plantation railway. It served the lower levels of the plantation. It was a larger tank than the two described in Locobase 11602.


Class Fannie (Locobase 11602)

Data from Baldwin Locomotive Works Specification for Engines, 1903, as digitized by the DeGolyer Library of Southern Methodist University Vol 26, p. 123. Works numbers were 9907 in March 1889 and 11900 in May 1891. See http://www2.hawaii.edu/~speccoll/p_paauhau.html and http://www2.hawaii.edu/~speccoll/p_kaiwiki.html for accounts of these sugar company operations. See also Prosper Quentin Tomich, "Sugar Plantations and their Railroad Era, 1879-1947", Hawaii: Perspectives on Hamakua History, (self-published, 2008, ISBN 978-0-615-25676-4), pp. 92-94.

These two tanks -- Fannie and Doctor -- were bought in different years by W. G. Irwin for two different sugar plantations. Fannie operated for Paauhau, Doctor (the 1891 engine) was run by Ookala Sugar Company, which later went bankrupt in 1909 and reorganized as Kaiwiki Plantation.

Paauhau is located about 50 miles from the Big Island's capital of Hilo on its northeast coast.

Sold to The University of Hawaii site explains that many of the cars used gravity to run to and from the mill: "Cane was collected on wagons and lifted by derrick to the tramcars. Double tracks extended for a mile down the slope. The loaded car traveled by gravity to the mill on one track and cable connections drew the empty cars back to the fields on the other track. The plantation eventually had five of these tramways in operation, each having the capacity of delivering 300 tons of cane in ten hours."

Prosper Tomich reported that Fannie was retired in 1920 as too expensive to repaire, but unretired in 1937 when Manuel Rapozo, who worked in the Paauhau's machine shop, and an assistant converted her to gasoline power using a Ford V8 engine.

She remained in use until the railway was closed in 1945. Even her apparent demise broke the usual mold. Instead of suffering dissection by welder's torch, Fannie was "pushed ...over the edge of Kawaili'ili'i Gulch near the mill, " says Tomich. "She may still be there, hung up among trees that arrested the intended fall of about 200 feet to the streambed."

Specifications by Steve Llanso of Sweat House Media
Class8Fannie
Locobase ID11,543 11,602
RailroadPaauhau Sugar CompanyPaauhau Sugar Company
CountryUSAHawaiian Kingdom
Whyte0-4-2ST0-4-2T
Number in Class12
Road Numbers8
Gauge2'6""2'6""
Number Built12
BuilderBurnham, Williams & CoBurnham, Williams & Co
Year19031889
Valve GearStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)4 3.67
Engine Wheelbase (ft)10.339
Ratio of driving wheelbase to overall engine wheebase 0.39 0.41
Overall Wheelbase (engine & tender) (ft)10.339
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)23,40010,300
Engine Weight (lbs)29,00015,090
Tender Loaded Weight (lbs)
Total Engine and Tender Weight (lbs)29,00015,090
Tender Water Capacity (gals)350225
Tender Fuel Capacity (oil/coal) (gals/tons)
Minimum weight of rail (calculated) (lb/yd)209
Geometry Relating to Tractive Effort
Driver Diameter (in)3024
Boiler Pressure (psi)150130
High Pressure Cylinders (dia x stroke) (in)9" x 14"7" x 12"
Tractive Effort (lbs)48202707
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.85 3.80
Heating Ability
Firebox Area (sq ft)21.75
Grate Area (sq ft) 7.90 4.50
Evaporative Heating Surface (sq ft)133
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)133
Evaporative Heating Surface/Cylinder Volume248.83
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1185585
Same as above plus superheater percentage1185585
Same as above but substitute firebox area for grate area2828
Power L12352
Power MT1006.85


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