H T Farrell 2-6-0 "Mogul" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 14943)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 65, p. 117. Works number was 54025 in November 1920.

This oil-burning Mogul was built for the stock track, apparently in anticipation of orders from Cuban sugar centrals for what had become a standard plantation locomotive. Plano, Texas's HT Farrell needed a 2-6-0 of modest power to move freight and the 1 proved to be the right size.

So Baldwin made sure the engine satisfied US regulations (e.g., the boiler was no longer described as "for export") and ensured that the details were "arranged so that locomotive can be easily changed to burn coal fuel." The 1 was to "operate in a gravel pit near Dallas, Tex, and must meed all requirements of the ICC and the US Safety Appliance standards." Also, all springs were to be made "one plate heavier than usual."

It was later sold to concrete manufacturer Gifford Hill Company, which may have used it at its Holley plant near Allamoore, Tex.

Specifications by Steve Llanso of Sweat House Media
Locobase ID14,943
RailroadH T Farrell
Number in Class1
Road Numbers1
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft)11.50
Engine Wheelbase (ft)19.33
Ratio of driving wheelbase to overall engine wheebase 0.59
Overall Wheelbase (engine & tender) (ft)46.29
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)97,000
Engine Weight (lbs)112,500
Tender Loaded Weight (lbs)85,000
Total Engine and Tender Weight (lbs)197,500
Tender Water Capacity (gals)4000
Tender Fuel Capacity (oil/coal) (gals/tons)1800
Minimum weight of rail (calculated) (lb/yd)54
Geometry Relating to Tractive Effort
Driver Diameter (in)52
Boiler Pressure (psi)180
High Pressure Cylinders (dia x stroke) (in)18" x 24"
Tractive Effort (lbs)22,879
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.24
Heating Ability
Firebox Area (sq ft)103
Grate Area (sq ft)21.30
Evaporative Heating Surface (sq ft)1355
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)1355
Evaporative Heating Surface/Cylinder Volume191.69
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3834
Same as above plus superheater percentage3834
Same as above but substitute firebox area for grate area18,540
Power L14127
Power MT281.40

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