Wiscasset, Waterville & Farmington 2-4-4 Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 7 (Locobase 12848)

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 31692 in September 1907.

The WW & F Railway succeeded the WW & F Railroad, which went into foreclosure in 1906. By 1916, this small Maine railroad ran from Wiscasset to Albion, a distance of 43.5 miles. In that same year, its net earnings were recorded as $17.

Specifications by Steve Llanso of Sweat House Media
Locobase ID12848
RailroadWiscasset, Waterville & Farmington
Number in Class1
Road Numbers7
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase 4.50'
Engine Wheelbase23.50'
Ratio of driving wheelbase to overall engine wheebase 0.19
Overall Wheelbase (engine & tender)23.50'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers32000 lbs
Engine Weight54000 lbs
Tender Light Weight
Total Engine and Tender Weight54000 lbs
Tender Water Capacity500 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)27 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter33"
Boiler Pressure180 psi
Cylinders (dia x stroke)11" x 14"
Tractive Effort7854 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.07
Heating Ability
Firebox Area52 sq. ft
Grate Area10.90 sq. ft
Evaporative Heating Surface507 sq. ft
Superheating Surface
Combined Heating Surface507 sq. ft
Evaporative Heating Surface/Cylinder Volume329.24
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1962
Same as above plus superheater percentage1962
Same as above but substitute firebox area for grate area9360
Power L14931
Power MT679.44

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.