Erie 2-8-8-2 "Chesapeake" Locomotives of the USA


Class Details by Steve Llanso of Sweat House Media

Class L1 - modified (Locobase 7745)

Data from Erie 4-1928 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

Locobase 5700 describes the one-of-a-kind camelback 0-8-8-0 pusher locomotive class that served only the Erie. It was just too unusual and Erie likely also felt that the large boiler was simply too big and long for the Mother Hubbard layout. In 1921, they were rebuilt by Baldwin as 2-8-8-2s and fitted with mechanical stokers and superheaters. In this new arrangement, they ranked as small engines except for the generous area of their Wootten firebox. Firebox heating surface now included 54 sq ft (5 sq m) of arch tubes and 96 sq ft (8.9 sq m) in the combustion chamber.

The cab was moved back to a conventional location behind the firebox. The lead truck extended wayyyyy forward of the smokebox -- Locobase wonders about the weight distribution of this design and indeed the diagram shows a relatively low axle loading of 16,130 lb.

In this form they operated throughout the twenties. All three were scrapped in December 1930.

Specifications by Steve Llanso of Sweat House Media
ClassL1 - modified
Locobase ID7745
RailroadErie (ERR)
CountryUSA
Whyte2-8-8-2
Number in Class3
Road Numbers2600-2602
GaugeStd
Number Built
BuilderBaldwin
Year1921
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft)14.25
Engine Wheelbase (ft)53.92
Ratio of driving wheelbase to overall engine wheebase 0.26
Overall Wheelbase (engine & tender) (ft)83.31
Axle Loading (Maximum Weight per Axle) (lbs)53,830
Weight on Drivers (lbs)401,150
Engine Weight (lbs)441,660
Tender Loaded Weight (lbs)167,700
Total Engine and Tender Weight (lbs)609,360
Tender Water Capacity (gals)8500
Tender Fuel Capacity (oil/coal) (gals/tons)16
Minimum weight of rail (calculated) (lb/yd)84
Geometry Relating to Tractive Effort
Driver Diameter (in)51
Boiler Pressure (psi)215
High Pressure Cylinders (dia x stroke) (in)25" x 28"
Low Pressure Cylinders (dia x stroke) (in)39" x 28"
Tractive Effort (lbs)88,890
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.51
Heating Ability
Firebox Area (sq ft)406
Grate Area (sq ft)100
Evaporative Heating Surface (sq ft)4496
Superheating Surface (sq ft)1170
Combined Heating Surface (sq ft)5666
Evaporative Heating Surface/Cylinder Volume282.63
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation21,500
Same as above plus superheater percentage26,015
Same as above but substitute firebox area for grate area105,621
Power L18051
Power MT353.97

Reference


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