Intended for freights between Montpelier, Ohio and Decatur, Illinois).
Drury (1993) notes the strong similarities between these Northerns and 25 4-8-2 Mountains delivered by the same builder to the same railroad at the same time for the same service (freights between Montpelier, Ohio and Decatur, Illinois) and adds: "The question 'Why not 50 of one type?' remains unanswered." An article in Railway Age 14 February 1931 doesn't answer the question, certainly, saying only that the chief difference between the two was the larger grate.
Like most Wabash steam, these engines were retired in the mid-1950s
| Specifications | |
|---|---|
| Class | M1 |
| Locobase ID | 1407 |
| Railroad | Wabash |
| Whyte | 4-8-2 |
| Road Numbers | 2800-2824 |
| Gauge | Std |
| Builder | Baldwin |
| Year | 1930 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase | 18.25' |
| Engine Wheelbase | 41.92' |
| Ratio of driving wheelbase to overall engine wheebase | 0.44 |
| Overall Wheelbase (engine & tender) | 83.83' |
| Axle Loading (Maximum Weight per Axle) | 67900 lbs |
| Weight on Drivers | 270400 lbs |
| Engine Weight | 406400 lbs |
| Tender Light Weight | 302000 lbs |
| Total Engine and Tender Weight | 708400 lbs |
| Tender Water Capacity | 15000 gals |
| Tender Fuel Capacity (oil/coal) | 18 tons |
| Minimum weight per yard of rail on which locomotive could run | 112.67 lb rail |
| Geometry Relating to Tractive Effort | |
| Driver Diameter | 70" |
| Boiler Pressure | 235 psi |
| Cylinders (dia x stroke) | 27" x 32" |
| Tractive Effort | 66568 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.06 |
| Heating Ability | |
| Firebox Area | 441 sq. ft |
| Grate Area | 84.20 sq. ft |
| Evaporative Heating Surface | 4561 |
| Superheating Surface | 2004 |
| Combined Heating Surface | 6565 |
| Evaporative Heating Surface/Cylinder Volume | 215.08 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 19787 |
| Same as above plus superheater percentage | 25827.08 |
| Same as above but substitute firebox area for grate area | 135270.12 |
| Power L1 | 32066.22 |
| Power MT | 1045.77 |
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