Locobases 12319-12320 showed several narrow-gauge saddle tanks of very similar dimensions that had gone to work on Hawaiian plantations a few years before the Lawai arrived. Its 200-psi boiler significantly boosted the power available to the skinny-rail system on which it worked.
In 1934, the Lawai went to the Lilue Plantation as the Iliahi.
Sugar producers Alexander & Baldwin bought this plantation radial tank for a southern Kauai sugar company (see Locobase 12406 for a history of the plantation). The specification pages discuss several construction details designed to reduce the risk of accidental fires in addition to the fitting of a standard Radley & Hunter flared stack. The ash pan was fitted with netting to catch hot ash and two dampers with a water pipe leading from the tank and arranged to sprinkle water. The smokebox was extended so that the cleaning door was at least 30 inches (762 mm) from the center line of the stack. Water blowers on the bottom and sides blew out ashes, a heavy netting screen mounted above the top row of tubes as a spark arrester was to be "conveniently arranged" to allow for the cleaning of tubes.
This engine wound up on the Lihue Plantation sometime after 1939.
|Specifications by Steve Llanso of Sweat House Media|
|Railroad||McBryde Sugar||McBryde Sugar|
|Number in Class||3||1|
|Builder||Burnham, Williams & Co||Baldwin|
|Locomotive Length and Weight|
|Ratio of driving wheelbase to overall engine wheebase||0.54||0.50|
|Overall Wheelbase (engine & tender)||13'||14.08'|
|Axle Loading (Maximum Weight per Axle)|
|Weight on Drivers||41000 lbs||45000 lbs|
|Engine Weight||48000 lbs||52000 lbs|
|Tender Light Weight|
|Total Engine and Tender Weight||48000 lbs||52000 lbs|
|Tender Water Capacity||750 gals||800 gals|
|Tender Fuel Capacity (oil/coal)|
|Minimum weight of rail (calculated)||23 lb/yard||25 lb/yard|
|Geometry Relating to Tractive Effort|
|Boiler Pressure||200 psi||165 psi|
|Cylinders (dia x stroke)||11" x 16"||10" x 16"|
|Tractive Effort||9973 lbs||6800 lbs|
|Factor of Adhesion (Weight on Drivers/Tractive Effort)||4.11||6.62|
|Firebox Area||35.73 sq. ft||40 sq. ft|
|Grate Area||7.38 sq. ft||10.60 sq. ft|
|Evaporative Heating Surface||336 sq. ft||442 sq. ft|
|Combined Heating Surface||336 sq. ft||442 sq. ft|
|Evaporative Heating Surface/Cylinder Volume||190.92||303.90|
|Computations Relating to Power Output (More Information)|
|Robert LeMassena's Power Computation||1476||1749|
|Same as above plus superheater percentage||1476||1749|
|Same as above but substitute firebox area for grate area||7146||6600|