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 Wheelbase14.25'
Engine Wheelbase53.92'
Ratio of driving wheelbase to overall engine wheebase 0.26
Overall Wheelbase (engine & tender)83.31'
Axle Loading (Maximum Weight per Axle)53830 lbs
Weight on Drivers401150 lbs
Engine Weight441660 lbs
Tender Light Weight167700 lbs
Total Engine and Tender Weight609360 lbs
Tender Water Capacity8500 gals
Tender Fuel Capacity (oil/coal)16 tons
Minimum weight of rail (calculated)84 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter51"
Boiler Pressure215 psi
High Pressure Cylinders (dia x stroke)25" x 28"
Low Pressure Cylinders (dia x stroke)39" x 28" (2)
Tractive Effort88890 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.51
Heating Ability
Firebox Area406 sq. ft
Grate Area100 sq. ft
Evaporative Heating Surface4496 sq. ft
Superheating Surface1170 sq. ft
Combined Heating Surface5666 sq. ft
Evaporative Heating Surface/Cylinder Volume282.63
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation21500
Same as above plus superheater percentage26015
Same as above but substitute firebox area for grate area105621
Power L18051
Power MT353.97

Reference


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