Phillips & Rangely 0-4-4 "Forney" Locomotives of 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 Raildata collection. 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.

Specifications by Steve Llanso of Sweat House Media
ClassIsaac Walton
Locobase ID1008
RailroadPhillips & Rangely
Number in Class1
Road Numbers2 / 17
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase6'
Engine Wheelbase18.25'
Ratio of driving wheelbase to overall engine wheebase 0.33
Overall Wheelbase (engine & tender)18.25'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers34000 lbs
Engine Weight50000 lbs
Tender Light Weight
Total Engine and Tender Weight50000 lbs
Tender Water Capacity800 gals
Tender Fuel Capacity (oil/coal)1.1 tons
Minimum weight of rail (calculated)28 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter35"
Boiler Pressure160 psi
Cylinders (dia x stroke)12" x 16"
Tractive Effort8953 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.80
Heating Ability
Firebox Area44.60 sq. ft
Grate Area 8.90 sq. ft
Evaporative Heating Surface448 sq. ft
Superheating Surface
Combined Heating Surface448 sq. ft
Evaporative Heating Surface/Cylinder Volume213.90
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1424
Same as above plus superheater percentage1424
Same as above but substitute firebox area for grate area7136
Power L12990
Power MT387.75


If you have any railroad data such as diagram books, rail station plans or anything else that you would be willing to share, please contact us.