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 ID11,640
RailroadOlowalu Plantation
CountryHawaiian Kingdom
Number in Class2
Road Numbers
Number Built2
BuilderBurnham, Parry, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft) 3.33
Engine Wheelbase (ft) 7.83
Ratio of driving wheelbase to overall engine wheebase 0.43
Overall Wheelbase (engine & tender) (ft) 7.83
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)
Engine Weight (lbs)
Tender Light Weight (lbs)
Total Engine and Tender Weight (lbs)
Tender Water Capacity (gals)200
Tender Fuel Capacity (oil/coal) (gals/tons)
Minimum weight of rail (calculated) (lb/yd)
Geometry Relating to Tractive Effort
Driver Diameter (in)24
Boiler Pressure (psi)130
High Pressure Cylinders (dia x stroke) (in)7" x 10"
Tractive Effort (lbs)2256
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Firebox Area (sq ft)19.50
Grate Area (sq ft) 4.60
Evaporative Heating Surface (sq ft)132
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)132
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

If you have any railroad data such as diagram books, rail station plans or anything else that you would be willing to share, please contact us.