Nassaui Kleinbahn AG 0-10-0 Locomotives in Germany


Class Details by Steve Llanso of Sweat House Media

Class 15 (II) (Locobase 7499)

Data from Paul Dorscheimer's website -- [link], accessed 22 May 2006. Works number was 11502 in 1951.

After World War II, the writing was on the wall for the NKAG, but the little werkbahn kept on for a while. This low-drivered design put more weight on the drivers without substantially increasing the axle loading over the six- and eight-coupleds that already served the Rhineland schmalspur. Possibly the "over-square" cylinders (piston stroke shorter than the diameter) allowed for operations around sharper curves.

It didn't operate long on that line, being sold to the Brotalbahn in April 1957, which ran the locomotive as III until October 1966.

Principal Dimensions by Steve Llanso of Middle Run Media
Class15 (II)
Locobase ID7499
RailroadNassaui Kleinbahn AG
CountryGermany
Whyte0-10-0T
Number in Class1
Road Numbers15
GaugeMetre
Number Built1
BuilderJung
Year1951
Valve GearHeusinger
Locomotive Length and Weight
Driver Wheelbase (ft / m)15.75 / 4.80
Engine Wheelbase (ft / m)15.75 / 4.80
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m)15.75 / 4.80
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)110,231 / 50,000
Engine Weight (lbs / kg)110,231 / 50,000
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)1584 / 6
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 2.20 / 2
Minimum weight of rail (calculated) (lb/yd / kg/m)37 / 18.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)39.40 / 1000
Boiler Pressure (psi / kPa)232.10 / 1600
High Pressure Cylinders (dia x stroke) (in / mm)19.69" x 17.72" / 500x450
Tractive Effort (lbs / kg)34,400 / 15603.60
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.20
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)19.69 / 1.83
Evaporative Heating Surface (sq ft / m2)831 / 77.27
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)831 / 77.27
Evaporative Heating Surface/Cylinder Volume133.07
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4570
Same as above plus superheater percentage4570
Same as above but substitute firebox area for grate area
Power L1
Power MT

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