Phillips & Rangely 0-4-4 "Forney" Locomotives in the USA
Class Details by Steve Llanso of Sweat House Media
Class Isaac Walton (Locobase 1008)
Data from [
] (reviewed 13 Feb 2004) and 1934 Maine Central locomotive tables supplied by Allen Stanley in May 2005 from his extensive Rail Data Exchange. See also DeGolyer, Volume 19, p. 1. Works number was 13276 in March 1893.
When delivered, the 2 had a slimmer, longer boiler containing 68 tubes, each 10 ft 9 1/2 in (3.29 m) long; the smaller firebox presented a 7.66 sq ft (0.71 sq m) grate area. Baldwin estimated the weights at 30,000 lb on the drivers, 40,000 for all four axles. Its adhesion wheelbase spanned 7 feet (2.13 m) ) and 12 ft 10 in (3.91 m) overall.
The P&R later was absorbed by the Sandy River & Rangely Lakes in 1908 and the 2 went to the successor as their 17. Rebuilt in 1915 to the specifications shown above (but withthe power dimensions (cylinder volume, boiler pressure, and driver diameter) unchanged), the two-footer ran until August 1936.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Isaac Walton |
| Locobase ID | 1008 |
| Railroad | Phillips & Rangely |
| Country | USA |
| Whyte | 0-4-4T |
| Number in Class | 1 |
| Road Numbers | 2 / 17 |
| Gauge | 2' |
| Number Built | 1 |
| Builder | Burnham, Williams & Co |
| Year | 1893 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 6 / 1.83 |
| Engine Wheelbase (ft / m) | 18.25 / 5.56 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.33 |
| Overall Wheelbase (engine & tender) (ft / m) | 18.25 / 5.56 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 34,000 / 15,422 |
| Engine Weight (lbs / kg) | 50,000 / 22,680 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 800 / 3.03 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.10 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 28 / 14 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 35 / 889 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 12" x 16" / 305x406 |
| Tractive Effort (lbs / kg) | 8953 / 4061.02 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.80 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 77 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 9.97 / 3.04 |
| Firebox Area (sq ft / m2) | 44.60 / 4.14 |
| Grate Area (sq ft / m2) | 8.90 / 0.83 |
| Evaporative Heating Surface (sq ft / m2) | 448 / 41.64 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 448 / 41.64 |
| Evaporative Heating Surface/Cylinder Volume | 214.35 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1424 |
| Same as above plus superheater percentage | 1424 |
| Same as above but substitute firebox area for grate area | 7136 |
| Power L1 | 2996 |
| Power MT | 388.53 |