Olowalu Plantation 0-4-2 Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class Olowalu (Locobase 11640)

Data from Baldwin Locomotive Works Specification for Engines, 1888, as digitized by the DeGolyer Library of Southern Methodist University Vol 15, p.179. See also the history of Olowalu town on Maui at [], last accessed 7 July 2011.

Works number was 10389 in October 1889. Six years later, the plantation line ordered a second locomotive differing only in its 140-psi boiler pressure. Its works number was 26449 in September 1905.

Olowalu Plantation later fell under the Pioneer Mill Company's umbrella of plantations.

Principal Dimensions by Steve Llanso of Middle Run Media

Locobase ID11640
RailroadOlowalu Plantation
CountryHawaiian Kingdom
Number in Class2
Road Numbers
Number Built2
BuilderBurnham, Parry, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 3.33 / 1.01
Engine Wheelbase (ft / m) 7.83 / 2.39
Ratio of driving wheelbase to overall engine wheelbase 0.43
Overall Wheelbase (engine & tender) (ft / m) 7.83 / 2.39
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)
Engine Weight (lbs / kg)
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)200 / 0.76
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)24 / 610
Boiler Pressure (psi / kPa)130 / 9
High Pressure Cylinders (dia x stroke) (in / mm)7" x 10" / 178x254
Tractive Effort (lbs / kg)2256 / 1023.31
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)46 - 1.5" / 38
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 6.26 / 1.91
Firebox Area (sq ft / m2)19.50 / 1.81
Grate Area (sq ft / m2) 4.60 / 0.43
Evaporative Heating Surface (sq ft / m2)132 / 12.26
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)132 / 12.26
Evaporative Heating Surface/Cylinder Volume293.33
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation598
Same as above plus superheater percentage598
Same as above but substitute firebox area for grate area2535
Power L12652
Power MT

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