Part of the secret of their longevity may have lain in the relatively large boiler and firebox heating surface in these engines. With superheating, these engines look as though they probably never ran out of steam.
| Specifications | |
|---|---|
| Class | E1 |
| Locobase ID | 3483 |
| Railroad | Cotton Belt (StLSW) |
| Whyte | 4-4-2 |
| Road Numbers | 600-605 |
| Gauge | Std |
| Builder | Baldwin |
| Year | 1909 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase | 6.25' |
| Engine Wheelbase | 26.09' |
| Ratio of driving wheelbase to overall engine wheebase | 0.24 |
| Overall Wheelbase (engine & tender) | 58.60' |
| Axle Loading (Maximum Weight per Axle) | 52900 lbs |
| Weight on Drivers | 105800 lbs |
| Engine Weight | 195000 lbs |
| Tender Light Weight | 169600 lbs |
| Total Engine and Tender Weight | 364600 lbs |
| Tender Water Capacity | 7000 gals |
| Tender Fuel Capacity (oil/coal) | 3200 gals |
| Minimum weight per yard of rail on which locomotive could run | 88 lb rail |
| Geometry Relating to Tractive Effort | |
| Driver Diameter | 70" |
| Boiler Pressure | 185 psi |
| Cylinders (dia x stroke) | 21" x 26" |
| Tractive Effort | 25758 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.11 |
| Heating Ability | |
| Firebox Area | 216 sq. ft |
| Grate Area | 31.20 sq. ft |
| Evaporative Heating Surface | 2109 |
| Superheating Surface | 496 |
| Combined Heating Surface | 2605 |
| Evaporative Heating Surface/Cylinder Volume | 202.34 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 5772 |
| Same as above plus superheater percentage | 6926 |
| Same as above but substitute firebox area for grate area | 47952 |
| Power L1 | 15848 |
| Power MT | 660.47 |
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