Olowalu Plantation 0-4-2 Locomotives of 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 http://www.olowalu.net/index.cfm?fuseaction=ig.page&PageID=128, 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.

Specifications by Steve Llanso of Sweat House 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 3.33'
Engine Wheelbase 7.83'
Ratio of driving wheelbase to overall engine wheebase 0.43
Overall Wheelbase (engine & tender) 7.83'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers
Engine Weight
Tender Light Weight
Total Engine and Tender Weight0
Tender Water Capacity200 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)0
Geometry Relating to Tractive Effort
Driver Diameter24"
Boiler Pressure130 psi
Cylinders (dia x stroke)7" x 10"
Tractive Effort2256 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Firebox Area19.50 sq. ft
Grate Area 4.60 sq. ft
Evaporative Heating Surface132 sq. ft
Superheating Surface
Combined Heating Surface132 sq. ft
Evaporative Heating Surface/Cylinder Volume296.35
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 L12679
Power MT

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