Wailuku 2-6-2 "Prairie" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class P C Jones (Locobase 13157)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 30, p. 261. Works number was 31574 in August 1907.

Another Maui-based sugar grower, this plantation purchased its first Baldwin in 1896 and took possession of this Prairie tank 9 years later.

Specifications by Steve Llanso of Sweat House Media
ClassP C Jones
Locobase ID13157
Number in Class1
Road Numbers
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase 7.75'
Engine Wheelbase20.33'
Ratio of driving wheelbase to overall engine wheebase 0.38
Overall Wheelbase (engine & tender)20.33'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers41000 lbs
Engine Weight57000 lbs
Tender Light Weight
Total Engine and Tender Weight57000 lbs
Tender Water Capacity650 gals
Tender Fuel Capacity (oil/coal)250 gals
Minimum weight of rail (calculated)23 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter33"
Boiler Pressure150 psi
Cylinders (dia x stroke)12" x 16"
Tractive Effort8902 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.61
Heating Ability
Firebox Area38 sq. ft
Grate Area 8.70 sq. ft
Evaporative Heating Surface396 sq. ft
Superheating Surface
Combined Heating Surface396 sq. ft
Evaporative Heating Surface/Cylinder Volume189.08
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1305
Same as above plus superheater percentage1305
Same as above but substitute firebox area for grate area5700
Power L12308
Power MT372.31

If you have any railroad data such as diagram books, rail station plans or anything else that you would be willing to share, please contact us.