Hesse State 4-4-0 Locomotives in Germany


Class Details by Steve Llanso of Sweat House Media

Class Drache (Locobase 10203)

Data from "The Works of Messrs Henschel & Sohn, Cassel", The Locomotive Magazine, Vol VI (September 1901), p. 152.

This was the very first Henschel locomotive (i.e., works number 1) and it left the factory in July 1848. It had the familiar four-sided firebox and long boiler of the time, closely spaced leading truck axles, regulator (throttle) placed well forward by the stack, and inside motion lnked to outside cylinders using rocker arms.

Principal Dimensions by Steve Llanso of Middle Run Media

ClassDrache
Locobase ID10203
RailroadHesse State
CountryGermany
Whyte4-4-0
Number in Class1
Road Numbers
GaugeStd
Number Built1
BuilderHenschel & Sohn
Year1848
Valve GearGab
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)16.02 / 4.88
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)
Engine Weight (lbs / kg)55,104 / 24,995
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)60 / 1524
Boiler Pressure (psi / kPa)114 / 7.90
High Pressure Cylinders (dia x stroke) (in / mm)15" x 24" / 381x610
Tractive Effort (lbs / kg)8721 / 3955.78
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)10.80 / 1
Evaporative Heating Surface (sq ft / m2)837 / 77.79
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)837 / 77.79
Evaporative Heating Surface/Cylinder Volume170.51
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1231
Same as above plus superheater percentage1231
Same as above but substitute firebox area for grate area
Power L1
Power MT

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