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.
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|
|Railroad||Hawaiian Sugar||Hawaiian Sugar|
|Number in Class||2||1|
|Builder||Burnham, Williams & Co||Burnham, Williams & Co|
|Locomotive Length and Weight|
|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 Drivers||27000 lbs||26500 lbs|
|Engine Weight||43000 lbs||44000 lbs|
|Tender Light Weight|
|Total Engine and Tender Weight||43000 lbs||44000 lbs|
|Tender Water Capacity||700 gals||700 gals|
|Tender Fuel Capacity (oil/coal)|
|Minimum weight of rail (calculated)||23 lb/yard||22 lb/yard|
|Geometry Relating to Tractive Effort|
|Boiler Pressure||140 psi||160 psi|
|Cylinders (dia x stroke)||10" x 16"||10" x 16"|
|Tractive Effort||5770 lbs||6594 lbs|
|Factor of Adhesion (Weight on Drivers/Tractive Effort)||4.68||4.02|
|Firebox Area||33.50 sq. ft||33.50 sq. ft|
|Grate Area||7.80 sq. ft||7.80 sq. ft|
|Evaporative Heating Surface||292 sq. ft||292 sq. ft|
|Combined Heating Surface||292 sq. ft||292 sq. ft|
|Evaporative Heating Surface/Cylinder Volume||200.76||200.76|
|Computations Relating to Power Output (More Information)|
|Robert LeMassena's Power Computation||1092||1248|
|Same as above plus superheater percentage||1092||1248|
|Same as above but substitute firebox area for grate area||4690||5360|