Erie 2-8-8-2 "Chesapeake" Locomotives in 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 Rail Data Exchange.

Locobase 5700 describes the trio constituting the one-of-a-kind camelback 0-8-8-0 pusher locomotive type 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 well 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 (5,956 kg).

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

Principal Dimensions by Steve Llanso of Sweat House Media

ClassL1 - modified
Locobase ID7745
RailroadErie (ERR)
Number in Class3
Road Numbers2600-2602
Number Built
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)28.50 / 8.69
Engine Wheelbase (ft / m)53.92 / 16.43
Ratio of driving wheelbase to overall engine wheelbase 0.53
Overall Wheelbase (engine & tender) (ft / m)83.31 / 25.39
Axle Loading (Maximum Weight per Axle) (lbs / kg)53,830 / 24,417
Weight on Drivers (lbs / kg)401,150 / 181,959
Engine Weight (lbs / kg)441,660 / 200,334
Tender Loaded Weight (lbs / kg)167,700 / 76,068
Total Engine and Tender Weight (lbs / kg)609,360 / 276,402
Tender Water Capacity (gals / ML)8500 / 32.20
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)16 / 15
Minimum weight of rail (calculated) (lb/yd / kg/m)84 / 42
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)51 / 1295
Boiler Pressure (psi / kPa)215 / 14.80
High Pressure Cylinders (dia x stroke) (in / mm)25" x 28" / 635x711
Low Pressure Cylinders (dia x stroke) (in / mm)39" x 28" / 991x711
Tractive Effort (lbs / kg)88,890 / 40319.87
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.51
Heating Ability
Tubes (number - dia) (in / mm)222 - 2.25" / 57
Flues (number - dia) (in / mm)45 - 5.5" / 140
Flue/Tube length (ft / m)21 / 6.40
Firebox Area (sq ft / m2)406 / 37.72
Grate Area (sq ft / m2)100 / 9.29
Evaporative Heating Surface (sq ft / m2)4496 / 417.84
Superheating Surface (sq ft / m2)1170 / 108.74
Combined Heating Surface (sq ft / m2)5666 / 526.58
Evaporative Heating Surface/Cylinder Volume282.65
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

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Wes Barris