Wailuku 2-6-2 "Prairie" Locomotives in 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.

Principal Dimensions by Steve Llanso of Sweat House Media
ClassP C Jones
Locobase ID13,157
Number in Class1
Road Numbers
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 7.75 / 2.36
Engine Wheelbase (ft / m)20.33 / 6.20
Ratio of driving wheelbase to overall engine wheebase 0.38
Overall Wheelbase (engine & tender) (ft / m)20.33 / 6.20
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)41,000 / 18,597
Engine Weight (lbs / kg)57,000 / 25,855
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)57,000
Tender Water Capacity (gals / ML)650 / 2.46
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)250 / 0.90
Minimum weight of rail (calculated) (lb/yd / kg/m)23 / 11.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)33 / 838
Boiler Pressure (psi / kPa)150 / 10.30
High Pressure Cylinders (dia x stroke) (in / mm)12" x 16" / 305x406
Tractive Effort (lbs / kg)8902 / 4037.88
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.61
Heating Ability
Firebox Area (sq ft / m2)38 / 3.53
Grate Area (sq ft / m2) 8.70 / 0.81
Evaporative Heating Surface (sq ft / m2)396 / 36.80
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)396 / 36.80
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

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