Konigliche Militaireisenbahn 2-4-0 Locomotives in Germany

Class Details by Steve Llanso of Sweat House Media

Class 9 (Locobase 21065)

Data from "2/3 gek. Guterzug-Locomotive fur normal Spurweite-Konigliche Militareisenbahn und Pruessis Staatsbahnen", (Tegel bei Berlin, 1878), p. 30. Works numbers were 4355 in March 1892.

The Kaiserliche und Königliche Eisenbahn-Bau Kompanie unit (German Imperial Railway Construction Company) used engines like this to support reconstruction of damaged right of way. It operated in the East during World War I.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID21065
RailroadKonigliche Militaireisenbahn
Number in Class3
Road Numbers9/203
Number Built3
Valve GearAllan
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)
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)92,594 / 42,000
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)92,594 / 42,000
Tender Water Capacity (gals / ML)1188 / 4.50
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 1.70 / 1.50
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)61.80 / 1570
Boiler Pressure (psi / kPa)174 / 12
High Pressure Cylinders (dia x stroke) (in / mm)16.54" x 24.02" / 420x610
Tractive Effort (lbs / kg)15,726 / 7133.20
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)14.75 / 1.37
Evaporative Heating Surface (sq ft / m2)976 / 90.67
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)976 / 90.67
Evaporative Heating Surface/Cylinder Volume163.39
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2567
Same as above plus superheater percentage2567
Same as above but substitute firebox area for grate area
Power L1
Power MT

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