Wiscasset, Waterville & Farmington 2-6-2 "Prairie" Locomotives of the USA


Class Details by Steve Llanso of Sweat House Media

Class 6 (Locobase 12849)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 31, p. 28 Works number was 31691 in September 1907.

6 later was converted to using Southern valve gear.

Specifications by Steve Llanso of Sweat House Media
Class6
Locobase ID12849
RailroadWiscasset, Waterville & Farmington
CountryUSA
Whyte2-6-2
Number in Class1
Road Numbers6
Gauge2'
Number Built1
BuilderBurnham, Williams & Co
Year1907
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase7'
Engine Wheelbase20'
Ratio of driving wheelbase to overall engine wheebase 0.35
Overall Wheelbase (engine & tender)37.50'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers40000 lbs
Engine Weight51500 lbs
Tender Light Weight30000 lbs
Total Engine and Tender Weight81500 lbs
Tender Water Capacity1500 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)22 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter33"
Boiler Pressure180 psi
Cylinders (dia x stroke)12" x 16"
Tractive Effort10682 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.74
Heating Ability
Firebox Area
Grate Area 9.30 sq. ft
Evaporative Heating Surface
Superheating Surface
Combined Heating Surface0
Evaporative Heating Surface/Cylinder Volume
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1674
Same as above plus superheater percentage1674
Same as above but substitute firebox area for grate area0
Power L10
Power MT0


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