Oahu Railway & Land Company 4-6-0 "Ten-wheeler" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class Waialua (Locobase 12310)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 22, p. 1. Works numbers were 16386-16387 in December 1898.

The second of these small Ten-wheelers was named Kahuka. Both locomotives had long careers. Kahuka was scrapped in 1936 while Waialua carried on until 1948.

Specifications by Steve Llanso of Sweat House Media
Locobase ID12,310
RailroadOahu Railway & Land Company
Number in Class2
Road Numbers64, 83
Number Built2
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)11.17
Engine Wheelbase (ft)19.75
Ratio of driving wheelbase to overall engine wheebase 0.57
Overall Wheelbase (engine & tender) (ft)39.92
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)45,000
Engine Weight (lbs)60,000
Tender Loaded Weight (lbs)35,000
Total Engine and Tender Weight (lbs)95,000
Tender Water Capacity (gals)1500
Tender Fuel Capacity (oil/coal) (gals/tons)
Minimum weight of rail (calculated) (lb/yd)25
Geometry Relating to Tractive Effort
Driver Diameter (in)43
Boiler Pressure (psi)160
High Pressure Cylinders (dia x stroke) (in)13" x 18"
Tractive Effort (lbs)9621
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.68
Heating Ability
Firebox Area (sq ft)72.88
Grate Area (sq ft) 9.30
Evaporative Heating Surface (sq ft)730
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)730
Evaporative Heating Surface/Cylinder Volume263.99
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1488
Same as above plus superheater percentage1488
Same as above but substitute firebox area for grate area11,661
Power L14538
Power MT666.97


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