Union Railway of Chattanooga 0-4-4 "Forney" Locomotives in the USA

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Class Details by Steve Llanso of Sweat House Media

Class 17 (Locobase 11880)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 13, p 234. Baldwin works numbers were 8585 in June 1887 and 8676 in July.

The 17 and 18 worked in the Chattanooga area through several name changes such as Chattanooga Union and Belt Railway of Chattanooga. In September 1895, the Alabama Great Southern bought the BRC and took both engines onto its roster as 17-18. 17 later worked for the Woodville Railroad, which operated it until 1910.

18 bounced around the southeast serving lumber companies, although its first post-URofC assignment was the Belt Railway of Chattanooga beginning in 1895. Then the 18 went to the Alabama Great Southern, then to locomotive rebuilder/reseller Southern Iron & Equipment. The SI&E sold the engine to the (I love this name) Norgress & Neefeffee of Morgan City, La as their #1. The N&N sold the 1 to Kile Lumber Company for the Cherokee Lumber Company. Later, CLC sold the by-now worn engine back to SI&E, who sent it on Great Eastern Lumber of Savannah, Ga.

Specifications by Steve Llanso of Sweat House Media
Class17
Locobase ID11,880
RailroadUnion Railway of Chattanooga
CountryUSA
Whyte0-4-4T
Number in Class2
Road Numbers17-18
GaugeStd
Number Built2
BuilderBurnham, Parry, Williams & Co
Year1887
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 wheebase 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)33,000 / 14,969
Engine Weight (lbs / kg)48,000 / 21,772
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)48,000
Tender Water Capacity (gals / ML)650 / 2.46
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)28 / 14
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)44 / 1118
Boiler Pressure (psi / kPa)130 / 9
High Pressure Cylinders (dia x stroke) (in / mm)12" x 18" / 305x457
Tractive Effort (lbs / kg)6509 / 2952.44
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.07
Heating Ability
Firebox Area (sq ft / m2)50 / 4.65
Grate Area (sq ft / m2)10.30 / 0.96
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 Volume190.14
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1339
Same as above plus superheater percentage1339
Same as above but substitute firebox area for grate area6500
Power L12824
Power MT377.32