Originally delivered to the Denver-Grand Junction, these were the Rio Grande's only Pacifics. They served the Grand Junction and successor D&RGW until 1949.
Drury 1993 and http://www.sound.net/~drgw/history/drg2.htm
| Specifications | |
|---|---|
| Class | P-44 |
| Locobase ID | 1430 |
| Railroad | Denver & Rio Grande Western (D&RGW) |
| Whyte | 4-6-2 |
| Road Numbers | 800-805 |
| Gauge | Std |
| Builder | Baldwin |
| Year | 1913 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase | 12.50' |
| Engine Wheelbase | 33.67' |
| Ratio of driving wheelbase to overall engine wheebase | 0.37 |
| Overall Wheelbase (engine & tender) | 65.48' |
| Axle Loading (Maximum Weight per Axle) | 54800 lbs |
| Weight on Drivers | 160440 lbs |
| Engine Weight | 261080 lbs |
| Tender Light Weight | 163500 lbs |
| Total Engine and Tender Weight | 424580 lbs |
| Tender Water Capacity | 9000 gals |
| Tender Fuel Capacity (oil/coal) | 17 tons |
| Minimum weight per yard of rail on which locomotive could run | 89.13 lb rail |
| Geometry Relating to Tractive Effort | |
| Driver Diameter | 67" |
| Boiler Pressure | 200 psi |
| Cylinders (dia x stroke) | 26" x 26" |
| Tractive Effort | 44596 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.60 |
| Heating Ability | |
| Firebox Area | 401 sq. ft |
| Grate Area | 63 sq. ft |
| Evaporative Heating Surface | 3654 |
| Superheating Surface | 778 |
| Combined Heating Surface | 4432 |
| Evaporative Heating Surface/Cylinder Volume | 228.70 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 12600 |
| Same as above plus superheater percentage | 14811.82 |
| Same as above but substitute firebox area for grate area | 94278.43 |
| Power L1 | 17698.05 |
| Power MT | 729.57 |
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