Farmers Farm Company 0-4-0 Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 4 (Locobase 15026)

Data from Roy V Wright (Ed.) 1912 Locomotive Cyclopedia of American Practice, Sixth Edition (New York: Simmons-Boardman Publishing Company, 1912), p. 152. Works number was 4850 in April 1911.

Specifications by Steve Llanso of Sweat House Media
Locobase ID15026
RailroadFarmers Farm Company
Number in Class1
Road Numbers4
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase 3.50'
Engine Wheelbase 3.50'
Ratio of driving wheelbase to overall engine wheebase1
Overall Wheelbase (engine & tender) 3.50'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers10000 lbs
Engine Weight10000 lbs
Tender Light Weight
Total Engine and Tender Weight10000 lbs
Tender Water Capacity
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)8 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter20"
Boiler Pressure160 psi
Cylinders (dia x stroke)5" x 10"
Tractive Effort1700 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.88
Heating Ability
Firebox Area13.70 sq. ft
Grate Area 2.52 sq. ft
Evaporative Heating Surface57 sq. ft
Superheating Surface
Combined Heating Surface57 sq. ft
Evaporative Heating Surface/Cylinder Volume250.82
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation403
Same as above plus superheater percentage403
Same as above but substitute firebox area for grate area2192
Power L12945
Power MT1298.52

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