Hebard Cypress Company 2-4-4 Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class Frederick (Locobase 11091)

Data from Logging Locomotives 1913 (Philadelphia, Pa: Baldwin Locomotive Works, 1913), p 6. See also DeGolyer, Volume 45, p. 10. Works number was 33531 in July 1909.

Compared to the 2-6-0 shown in Locobase 14033, this Hebard Cypress wood-burning Forney (what Baldwin called a "four-coupled double-ender") was a good deal smaller and of the proportions associated with lightly built tram roads. In fact, the engine operated in Pequaming, Mich to move logs for cutting into wood for automobile bodies.

Principal Dimensions by Steve Llanso of Sweat House Media
Locobase ID11,091
RailroadHebard Cypress Company
Number in Class1
Road Numbers
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 6.50 / 1.98
Engine Wheelbase (ft / m)25.75 / 7.85
Ratio of driving wheelbase to overall engine wheebase 0.25
Overall Wheelbase (engine & tender) (ft / m)25.75 / 7.85
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)38,500 / 17,463
Engine Weight (lbs / kg)69,000 / 31,298
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)69,000
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)32 / 16
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)46 / 1168
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)12" x 20" / 305x508
Tractive Effort (lbs / kg)8515 / 3862.34
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.52
Heating Ability
Firebox Area (sq ft / m2)63 / 5.85
Grate Area (sq ft / m2)12.90 / 1.20
Evaporative Heating Surface (sq ft / m2)649 / 60.29
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)649 / 60.29
Evaporative Heating Surface/Cylinder Volume247.90
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2064
Same as above plus superheater percentage2064
Same as above but substitute firebox area for grate area10,080
Power L14517
Power MT517.31

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