Hawaiian Sugar 2-4-2 "Columbian" Locomotives of the USA


Class Details by Steve Llanso of Sweat House Media

Class Hanapepe (Locobase 11738)

Data from Baldwin Locomotive Works Specification for Engines, as digitized by the DeGolyer Library of Southern Methodist University Volume 18, p. 41. Works numbers were 12966 in October 1892 and 13676 in August 1893.

These two sugar-plantation engines were delivered with names Hanapepe and Waialeaa. The specs required each engine to manage 50 cane cars of 3 tons loaded weight each around very tight curves.

The former was sold in August 1941 to Koloa Plantation, which renamed it Kaluahono. 3 went to Grove Farm in January 1943 as their #4.


Class Olokele (Locobase 13002)

Data from Baldwin Locomotive Works Specification for Engines, as digitized by the DeGolyer Library of Southern Methodist University, Vol 29, p. 41. Works number was 28623 in July 1906.

This saddle tank joined two other locomotives of virtually identical dimensions that had been delivered in 1892 (Locobase 11738). Detail differences included a reduction in thickness of the boiler tubes from #13 WG to #12 WG, the use of magnesia sectional lagging on the boiler, Crosby safety valves instead of those manufactured by the works themselves. Baldwin, an increase in the boiler pressure, and a slight difference in weights. The spec continued to require the ability to haul 50 cane cars of 3 tons each.

The 4 was retired in August 1941.

Specifications by Steve Llanso of Sweat House Media
ClassHanapepeOlokele
Locobase ID11738 13002
RailroadHawaiian SugarHawaiian Sugar
CountryHawaiian KingdomUSA
Whyte2-4-2ST2-4-2ST
Number in Class21
Road Numbers2-34
Gauge2'6""2'6""
Number Built21
BuilderBurnham, Williams & CoBurnham, Williams & Co
Year18921906
Valve GearStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase 5.50' 5.50'
Engine Wheelbase18.17'18.17'
Ratio of driving wheelbase to overall engine wheebase 0.30 0.30
Overall Wheelbase (engine & tender)18.17'18.17'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers27000 lbs26500 lbs
Engine Weight43000 lbs44000 lbs
Tender Light Weight
Total Engine and Tender Weight43000 lbs44000 lbs
Tender Water Capacity700 gals700 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)23 lb/yard22 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter33"33"
Boiler Pressure140 psi160 psi
Cylinders (dia x stroke)10" x 16"10" x 16"
Tractive Effort5770 lbs6594 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.68 4.02
Heating Ability
Firebox Area33.50 sq. ft33.50 sq. ft
Grate Area 7.80 sq. ft 7.80 sq. ft
Evaporative Heating Surface292 sq. ft292 sq. ft
Superheating Surface
Combined Heating Surface292 sq. ft292 sq. ft
Evaporative Heating Surface/Cylinder Volume200.76200.76
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation10921248
Same as above plus superheater percentage10921248
Same as above but substitute firebox area for grate area46905360
Power L124332780
Power MT397.32462.55


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