Kahului Railroad 2-6-0 "Mogul" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class Maunaolu (Locobase 11500)

Data from Baldwin Locomotive Works Specification for Engines, 1903, as digitized by the DeGolyer Library of Southern Methodist University Volume 26, p. 246. Works numbers were 23763 in February 1904.

Originally ordered by the Tonopah Railroad, the engine was instead delivered to the Kahului through its sale to Alexander & Baldwin, one of the "Big Five" sugar companies in Hawai'i that had recently taken over both the Kahului and its main rival the Maui Railroad & Steamship Company.

The 5's tonnage ratings included 900 tons on the level, 375 tons up a 1/2% grade, 225 tons up 1% down to 70 tons up a 3% segment.

After more than 30 years of service on the Kahului, #5 started a second career with Walalua Hyric of Tural Co. (of the Waialua Agriculture Company) and took engine #2.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID11500
RailroadKahului Railroad
Number in Class1
Road Numbers5
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 9.33 / 2.84
Engine Wheelbase (ft / m)15.50 / 4.72
Ratio of driving wheelbase to overall engine wheelbase 0.60
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)34,000 / 15,422
Engine Weight (lbs / kg)45,000 / 20,412
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)6000 / 22.73
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)19 / 9.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)40 / 1016
Boiler Pressure (psi / kPa)150 / 10.30
High Pressure Cylinders (dia x stroke) (in / mm)12" x 18" / 305x457
Tractive Effort (lbs / kg)8262 / 3747.58
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.12
Heating Ability
Tubes (number - dia) (in / mm)118 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 8.27 / 2.52
Firebox Area (sq ft / m2)54.50 / 5.07
Grate Area (sq ft / m2)10.60 / 0.99
Evaporative Heating Surface (sq ft / m2)498 / 46.28
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)498 / 46.28
Evaporative Heating Surface/Cylinder Volume211.02
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1590
Same as above plus superheater percentage1590
Same as above but substitute firebox area for grate area8175
Power L13265
Power MT635.13

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