Bath & Hammondport 0-4-4 "Forney" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class Frank (Locobase 11771)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 9, p. 252. Baldwin works number was 4971 in February 1880.

A small Forney with a relatively large water capacity, Frank served New York's B & H for about 8 years. When the B & H converted to standard gauge in 1888, Frank moved on to the Sheridan & Shea Company, located nearby.

Specifications by Steve Llanso of Sweat House Media
Locobase ID11,771
RailroadBath & Hammondport
Number in Class1
Road Numbers3
Number Built1
BuilderBurnham, Parry, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)4
Engine Wheelbase (ft)14.33
Ratio of driving wheelbase to overall engine wheebase 0.28
Overall Wheelbase (engine & tender) (ft)14.33
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)16,000
Engine Weight (lbs)25,000
Tender Loaded Weight (lbs)
Total Engine and Tender Weight (lbs)25,000
Tender Water Capacity (gals)600
Tender Fuel Capacity (oil/coal) (gals/tons)
Minimum weight of rail (calculated) (lb/yd)13
Geometry Relating to Tractive Effort
Driver Diameter (in)30
Boiler Pressure (psi)130
High Pressure Cylinders (dia x stroke) (in)9" x 14"
Tractive Effort (lbs)4177
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.83
Heating Ability
Firebox Area (sq ft)27
Grate Area (sq ft) 6.70
Evaporative Heating Surface (sq ft)197
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)197
Evaporative Heating Surface/Cylinder Volume191.11
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation871
Same as above plus superheater percentage871
Same as above but substitute firebox area for grate area3510
Power L12093
Power MT576.78

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.