Wheeling & Lake Erie 4-4-2 "Atlantic" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class E-1 (Locobase 7884)

Data from W&LE 8 - 1923 & 10 1924 Locomotive Diagram books supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Works numbers were 30916-30921.

This batch of Atlantics represented typical high-speed engines of the time. Compared to other US 4-4-2s, these had relatively generous firebox areas, smaller than average grates, and about average evaporative heating surface area. The driving and engine wheelbases ran toward the top of the range while the adhesion and engine weights came in around the median. Likewise, tractive effort also met the median.

Specifications by Steve Llanso of Sweat House Media
Locobase ID7884
RailroadWheeling & Lake Erie
Number in Class6
Road Numbers/ 2301-2306
Number Built6
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase 7.50'
Engine Wheelbase30.92'
Ratio of driving wheelbase to overall engine wheebase 0.24
Overall Wheelbase (engine & tender)58.67'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers101430 lbs
Engine Weight191530 lbs
Tender Light Weight140000 lbs
Total Engine and Tender Weight331530 lbs
Tender Water Capacity6960 gals
Tender Fuel Capacity (oil/coal)12 tons
Minimum weight of rail (calculated)85 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter79"
Boiler Pressure190 psi
Cylinders (dia x stroke)21" x 26"
Tractive Effort23440 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.33
Heating Ability
Firebox Area200.40 sq. ft
Grate Area46.30 sq. ft
Evaporative Heating Surface2700 sq. ft
Superheating Surface
Combined Heating Surface2700 sq. ft
Evaporative Heating Surface/Cylinder Volume259.05
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation8797
Same as above plus superheater percentage8797
Same as above but substitute firebox area for grate area38076
Power L18885
Power MT386.24


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