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 (ft) 7.50
Engine Wheelbase (ft)30.92
Ratio of driving wheelbase to overall engine wheebase 0.24
Overall Wheelbase (engine & tender) (ft)58.67
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)101,430
Engine Weight (lbs)191,530
Tender Loaded Weight (lbs)140,000
Total Engine and Tender Weight (lbs)331,530
Tender Water Capacity (gals)6960
Tender Fuel Capacity (oil/coal) (gals/tons)12
Minimum weight of rail (calculated) (lb/yd)85
Geometry Relating to Tractive Effort
Driver Diameter (in)79
Boiler Pressure (psi)190
High Pressure Cylinders (dia x stroke) (in)21" x 26"
Tractive Effort (lbs)23,440
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.33
Heating Ability
Firebox Area (sq ft)200.40
Grate Area (sq ft)46.30
Evaporative Heating Surface (sq ft)2700
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)2700
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 area38,076
Power L18885
Power MT386.24


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