Number 181 was scrapped in 1952 and 180 in 1954.
Data from A&WP - WRA 10 - 1945 Locomotive and Crane Diagrams supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange.
Unlike most of the other classes on the West Point Route, these Mountains went to only one of the two constituents; the Atlanta & West Point did not buy 4-8-2s. They were relatively light and small, but did the job. In World War II, they were sent to the Georgia Railroad (which connected Augusta with Atlanta and was a part of the WPR as well).
These two lasted in Western service until 1952 and 1954.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | M |
| Locobase ID | 3104 |
| Railroad | Western Railway of Alabama (WPR) |
| Country | USA |
| Whyte | 4-8-2 |
| Number in Class | 2 |
| Road Numbers | 180-181 |
| Gauge | Std |
| Number Built | 2 |
| Builder | Alco-Richmond |
| Year | 1920 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 18 / 5.49 |
| Engine Wheelbase (ft / m) | 38.92 / 11.86 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.46 |
| Overall Wheelbase (engine & tender) (ft / m) | 73.94 / 22.54 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 52,500 / 23,814 |
| Weight on Drivers (lbs / kg) | 209,500 / 95,028 |
| Engine Weight (lbs / kg) | 314,000 / 142,428 |
| Tender Loaded Weight (lbs / kg) | 198,700 / 90,129 |
| Total Engine and Tender Weight (lbs / kg) | 512,700 / 232,557 |
| Tender Water Capacity (gals / ML) | 11,000 / 41.67 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 15 / 14 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 87 / 43.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 69 / 1753 |
| Boiler Pressure (psi / kPa) | 190 / 1310 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 27" x 28" / 686x711 |
| Tractive Effort (lbs / kg) | 47,776 / 21670.85 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.39 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 178 - 2.25" / 57 |
| Flues (number - dia) (in / mm) | 36 - 5.5" / 140 |
| Flue/Tube length (ft / m) | 21.54 / 6.57 |
| Firebox Area (sq ft / m2) | 280 / 26.02 |
| Grate Area (sq ft / m2) | 66.70 / 6.20 |
| Evaporative Heating Surface (sq ft / m2) | 3662 / 340.33 |
| Superheating Surface (sq ft / m2) | 817 / 75.93 |
| Combined Heating Surface (sq ft / m2) | 4479 / 416.26 |
| Evaporative Heating Surface/Cylinder Volume | 197.31 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 12,673 |
| Same as above plus superheater percentage | 14,954 |
| Same as above but substitute firebox area for grate area | 62,776 |
| Power L1 | 14,616 |
| Power MT | 615.23 |