Wenatchee Valley & Northern 2-6-2 "Prairie" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 102 (Locobase 13438)

Data from DeGolyer Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 32, Volume 32, p. 74. Works number was 33285 in March 1909.

Yet another Baldwin logging Prairie, this one for the 16-mile timber company road based in Wenatchee, Washington. After the WV & N closed in 1916, the engine went to work for the Northern Coast Timber Company.

Specifications by Steve Llanso of Sweat House Media
Locobase ID13438
RailroadWenatchee Valley & Northern
Number in Class1
Road Numbers102
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase11'
Engine Wheelbase26.52'
Ratio of driving wheelbase to overall engine wheebase 0.41
Overall Wheelbase (engine & tender)0
Axle Loading (Maximum Weight per Axle)
Weight on Drivers100000 lbs
Engine Weight130000 lbs
Tender Light Weight60000 lbs
Total Engine and Tender Weight190000 lbs
Tender Water Capacity3000 gals
Tender Fuel Capacity (oil/coal)0
Minimum weight of rail (calculated)56 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter44"
Boiler Pressure180 psi
Cylinders (dia x stroke)18" x 24"
Tractive Effort27039 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.70
Heating Ability
Firebox Area148 sq. ft
Grate Area26.10 sq. ft
Evaporative Heating Surface1805 sq. ft
Superheating Surface0
Combined Heating Surface1805 sq. ft
Evaporative Heating Surface/Cylinder Volume255.36
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4698
Same as above plus superheater percentage4698
Same as above but substitute firebox area for grate area26640
Power L14753
Power MT314.36

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