Locobase 5700 describes the one-of-a-kind camelback 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 included 54 sq ft of arch tubes and 96 sq ft in the combustion chamber.
The firebox heating surface now included 96 sq ft of combustion chamber area and 54 sq ft of arch tubes. 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 until 1930.
| Specifications | |
|---|---|
| Class | L1 - modified |
| Locobase ID | 7745 |
| Railroad | Erie (ERR) |
| Whyte | 2-8-8-2 |
| Road Numbers | 2600-2602 |
| Gauge | Std |
| Builder | Baldwin |
| Year | 1921 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase | 14.25' |
| Engine Wheelbase | 53.92' |
| 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 Drivers | 401150 lbs |
| Engine Weight | 441660 lbs |
| Tender Light Weight | 167700 lbs |
| Total Engine and Tender Weight | 609360 lbs |
| Tender Water Capacity | 8500 gals |
| Tender Fuel Capacity (oil/coal) | 16 tons |
| Minimum weight per yard of rail on which locomotive could run | 83.57 lb rail |
| Geometry Relating to Tractive Effort | |
| Driver Diameter | 51" |
| Boiler Pressure | 215 psi |
| Cylinders (dia x stroke) | 25" x 28" |
| Low Pressure Cylinders (dia x stroke) | 39" x 28" |
| Tractive Effort | 88890 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.51 |
| Heating Ability | |
| Firebox Area | 406 sq. ft |
| Grate Area | 100 sq. ft |
| Evaporative Heating Surface | 4496 |
| Superheating Surface | 1170 |
| Combined Heating Surface | 5666 |
| Evaporative Heating Surface/Cylinder Volume | 282.63 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 21500 |
| Same as above plus superheater percentage | 25939.64 |
| Same as above but substitute firebox area for grate area | 105314.94 |
| Power L1 | 8051.40 |
| Power MT | 353.99 |
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