Prescott & Northwestern 2-6-0 "Mogul" Locomotives in the USA
Class Details by Steve Llanso of Sweat House Media
Class 14 (Locobase 13322)
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 32, p. 192. See also the Tap Line Cases summary of this railroad as described in 1914 at [
], last accessed 29 October 2011. Works number was 33159 in January 1909..
Arkansas timber invited new railroad construction and Prescott was established by Ozan Lumber Company as the southernmost terminus of a 31-mile connection with Highland with lines that ran out further into the woods. The Tap Line summary highlighted the how the road was "...substantially and permanently built, with 54 and 63 pound rail laid on gravel ballast" and that it had a substantial percentage of outside business.
The P & NW shipped forest products and cement as well as Elberta peaches from an 2,000-acre orchard established in 1910.
Years later (i.e., after 1940), the railroad sold the 14 to Meriwether Gravel of Lewisville, Ark.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 14 |
| Locobase ID | 13322 |
| Railroad | Prescott & Northwestern |
| Country | USA |
| Whyte | 2-6-0 |
| Number in Class | 1 |
| Road Numbers | 14 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Burnham, Williams & Co |
| Year | 1909 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 12.50 / 3.81 |
| Engine Wheelbase (ft / m) | 20 / 6.10 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.63 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 101,000 / 45,813 |
| Engine Weight (lbs / kg) | 118,500 / 53,751 |
| Tender Loaded Weight (lbs / kg) | 90,000 / 40,823 |
| Total Engine and Tender Weight (lbs / kg) | 208,500 / 94,574 |
| Tender Water Capacity (gals / ML) | 4500 / 17.05 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 56 / 28 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 48 / 1219 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18" x 24" / 457x610 |
| Tractive Effort (lbs / kg) | 24,786 / 11242.75 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.07 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 209 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11 / 3.35 |
| Firebox Area (sq ft / m2) | 111 / 10.31 |
| Grate Area (sq ft / m2) | 20.50 / 1.90 |
| Evaporative Heating Surface (sq ft / m2) | 1306 / 121.33 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1306 / 121.33 |
| Evaporative Heating Surface/Cylinder Volume | 184.72 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3690 |
| Same as above plus superheater percentage | 3690 |
| Same as above but substitute firebox area for grate area | 19,980 |
| Power L1 | 3790 |
| Power MT | 248.18 |