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

Class Details by Steve Llanso of Sweat House Media

Class 2 (Locobase 12688)

Data from DeGolyer, Volume 27, p. 1. See also W R Hicks, "A Short History of the Emmitsburg Railroad", Emmitsburg Area Historical Society, [], last accessed 7 June 2011. Works number was 24104 in April 1904.

Hicks tells us that Emmitsburg, Maryland lay on the route to Pittsburgh. Incorporated in 1868, the railroad followed a relatively easy path over the 7.3 miles between Emmitsburg and Rocky Ridge. The ERR struggled from the time it opened in 1875 and by 1890 was reorganized with fresh blood and money. Hicks reports that the iron rails originally laid were replaced with 10-lb steel rail; in fact, another article on the site gives the weight as 60 lb/yard, a much more likely figure.

The ERR gave the general manager permission to dispose of the 2 on 27 December 1912. Gene Connelly records the engine as being sold to the East Berlin Railway in February 1916.

Principal Dimensions by Steve Llanso of Sweat House Media
Locobase ID12,688
Number in Class1
Road Numbers2
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)6 / 1.83
Engine Wheelbase (ft / m)17.42 / 5.31
Ratio of driving wheelbase to overall engine wheebase 0.34
Overall Wheelbase (engine & tender) (ft / m)17.42 / 5.31
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)46,000 / 20,865
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)900 / 3.41
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)38 / 19
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)44 / 1118
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)13" x 20" / 330x508
Tractive Effort (lbs / kg)10,447 / 4738.69
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.40
Heating Ability
Firebox Area (sq ft / m2)57.50 / 5.34
Grate Area (sq ft / m2) 9.57 / 0.89
Evaporative Heating Surface (sq ft / m2)592 / 55
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)592 / 55
Evaporative Heating Surface/Cylinder Volume192.68
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1531
Same as above plus superheater percentage1531
Same as above but substitute firebox area for grate area9200
Power L13359
Power MT321.97

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