Kahului Railroad 2-6-2 "Prairie" Type Locomotives

Class 12 (Locobase 4417)

Data from narrowmind.railfan.net. Works number was 60690 in December 1928.

Prairie that served the Maui port of Kahului, transporting construction materials inland and pineapples and sugar cane portward. Relatively large oil-burner with straight stack.

A transportation sales website -- http://www.trains-trams-trolleys.com/equipment/small/3017/ (visited 30 Dec 2002) tells us that the locomotive operated for almost 40 years and is said to have been the last steam locomotive operated commercially in Hawaii (in 1966).

After its retirement, the 12 was sold to John Houghton of San Leandro, Calif, who in turn sold it to Chamas, NM-based Scenic Railways. In 1982, the engine was sold again to Midwest Central Railroad, a 1 1/4-mile circle aroung McMillan Park in Mt Pleasant, Iowa. Purchased later by the Silverwood Theme Park in Athol, Idaho and rebuilt in 1988, the locomotive was available for sale in 2002 for $250,000.

12 ultimately wound up on the Georgetown Loop Railroad in Colorado and was rebuilt again to come into compliance with FRA regulations in 2008.

Additional information tells us that stamps issued by this railroad are a collector's item. Many websites talk about the various stamp issues, examples of the only stamps to have been issued by a railroad.

Specifications
Class12
Locobase ID4417
RailroadKahului Railroad
Whyte2-6-2
Road Numbers12
Gauge3'
BuilderBaldwin
Year1929
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase8'
Engine Wheelbase23.17'
Ratio of driving wheelbase to overall engine wheebase 0.35
Overall Wheelbase (engine & tender)
Axle Loading (Maximum Weight per Axle)
Weight on Drivers60200 lbs
Engine Weight81800 lbs
Tender Light Weight49057 lbs
Total Engine and Tender Weight130857 lbs
Tender Water Capacity
Tender Fuel Capacity (oil/coal)
Minimum weight per yard of rail on which locomotive could run33 lb rail
Geometry Relating to Tractive Effort
Driver Diameter40"
Boiler Pressure185 psi
Cylinders (dia x stroke)14" x 20"
Tractive Effort15411 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.91
Heating Ability
Firebox Area
Grate Area17.10 sq. ft
Evaporative Heating Surface1069
Superheating Surface
Combined Heating Surface1069
Evaporative Heating Surface/Cylinder Volume300.00
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3164
Same as above plus superheater percentage3164
Same as above but substitute firebox area for grate area0
Power L10
Power MT0

Credits

Introduction and specifications provided by Steve Llanso of Sweat House Media.