Warrenton 0-4-4 "Forney" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 3 (Locobase 12967)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 29, p.64. See also Roy V Wright (Ed.) 1912 Locomotive Cyclopedia of American Practice, Sixth Edition (New York: Simmons-Boardman Publishing Company, 1912), p. 158. (Thanks to Chris Hohl for his 31 December 2022 email noting the 3's coal capacity.) Works number was 27916 in April 1906.

This little 3-mile (4.8 km) line connected Warrenton with the Raleigh & Gaston Railroad. It was built in preference to allowing the R&G to run through the town itself. Opened in 1884, it offered passenger service for part of its time, while freight service continued to be available until 1985.

The 3 was sold in 1924 to locomotive rebuilder/reseller Southern Iron & Equipment. The SI & E sold the engine to Enterprise Whiteville Lumber Company as their #1.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID12967
Number in Class1
Road Numbers3
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 6.50 / 1.98
Engine Wheelbase (ft / m)17.33 / 5.28
Ratio of driving wheelbase to overall engine wheelbase 0.38
Overall Wheelbase (engine & tender) (ft / m)17.33 / 5.28
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)42,000 / 19,051
Engine Weight (lbs / kg)60,000 / 27,216
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)60,000
Tender Water Capacity (gals / ML)750 / 2.84
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 1.50
Minimum weight of rail (calculated) (lb/yd / kg/m)35 / 17.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)40 / 1016
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)13" x 18" / 330x457
Tractive Effort (lbs / kg)10,343 / 4691.51
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.06
Heating Ability
Tubes (number - dia) (in / mm)88 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)10.17 / 3.10
Firebox Area (sq ft / m2)50.20 / 4.67
Grate Area (sq ft / m2)10.30 / 0.96
Evaporative Heating Surface (sq ft / m2)515 / 47.86
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)515 / 47.86
Evaporative Heating Surface/Cylinder Volume185.92
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1648
Same as above plus superheater percentage1648
Same as above but substitute firebox area for grate area8032
Power L12950
Power MT309.70

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