Chesapeake & Ohio 0-4-4 "Forney" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class B-1 (Locobase 11151)

Data from Schenectady Locomotive Works, Illustrated Catalogue of Simple and Compound Locomotives (Philadelphia: J B Lippincott, 1897), pp. 194-195. Works numbers were 2719-2720 in 1889.

Rolling on an unusual wheel arrangement on any railroad, this pair of Forneys held on to their original numbers until the second decade of the 20th Century. Then they were renumbered three times in two years.

1003 was sold in March 1912 to J T Gardner. 1004 was renumbered three more times in 1912-1913 to 1304, 44, and 48. As the latter number, the 48 was sent to the scrapper in November 1913.

Specifications by Steve Llanso of Sweat House Media
Locobase ID11,151
RailroadChesapeake & Ohio (C&O)
Number in Class2
Road Numbers20-21/802-803/902-903/1003-1004
Number Built2
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft) 7.50
Engine Wheelbase (ft)23.58
Ratio of driving wheelbase to overall engine wheebase 0.32
Overall Wheelbase (engine & tender) (ft)23.58
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)75,000
Engine Weight (lbs)110,000
Tender Loaded Weight (lbs)
Total Engine and Tender Weight (lbs)110,000
Tender Water Capacity (gals)1500
Tender Fuel Capacity (oil/coal) (gals/tons)
Minimum weight of rail (calculated) (lb/yd)63
Geometry Relating to Tractive Effort
Driver Diameter (in)57
Boiler Pressure (psi)150
High Pressure Cylinders (dia x stroke) (in)17" x 24"
Tractive Effort (lbs)15,515
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.83
Heating Ability
Firebox Area (sq ft)110.30
Grate Area (sq ft)14.30
Evaporative Heating Surface (sq ft)1228
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)1228
Evaporative Heating Surface/Cylinder Volume194.77
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2145
Same as above plus superheater percentage2145
Same as above but substitute firebox area for grate area16,545
Power L14022
Power MT236.45


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