Localbahn AG / K.Bay.Sts.B 0-6-2 Locomotives in Germany


Class Details by Steve Llanso of Sweat House Media

Class PtL 3/4 / BR 98.561 (Locobase 5811)

Data from Christian Lindecke's website [] (visited 2 Jan 2004) (translated by Google). Additional data from US Military Railway Service Equipment Data Book -- German Locomotives supplied by Allen Stanley from his extensive Rail Data Exchange in March 2004.

Built for "localbahn" service -- short-haul around the cities -- this class was based on the earlier and much more numerous D XI class. Like the D XI, these engines had Krauss-Helmholtz trucks.

They went into service with the LAG in 1900 as a trio. The other 5 were supplied to K.Bay.Sts.B in 1914, by which time the LAG engines had been incorporated into the larger railway as well. Built for "localbahn" service -- short-haul around the cities -- this class was based on the earlier and much more numerous D XI class. Like the D XI, these engines had Krauss-Helmholtz trucks.

When the DRG began numbering in 1923, all of the class was still in service. They ran for decades as 98 561-568 until retirement in 1951-1954.

The RMS databook shows 667 sq ft (ca. 62 sq m) plus 54 sq ft (5 sq m) of firebox heating surface. Lindecke shows the 62 sq m figure as the total EHS.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassPtL 3/4 / BR 98.561
Locobase ID5811
RailroadLocalbahn AG / K.Bay.Sts.B
CountryGermany
Whyte0-6-2T
Number in Class8
Road Numbers
GaugeStd
Number Built8
BuilderKrauss Maffei
Year1900
Valve GearHeusinger
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)24,030 / 10,900
Weight on Drivers (lbs / kg)71,650 / 32,500
Engine Weight (lbs / kg)90,610 / 41,100
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)90,610 / 41,100
Tender Water Capacity (gals / ML)1135 / 4.30
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 1.70 / 2
Minimum weight of rail (calculated) (lb/yd / kg/m)40 / 20
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)39.60 / 1006
Boiler Pressure (psi / kPa)174 / 12
High Pressure Cylinders (dia x stroke) (in / mm)14.76" x 20" / 375x508
Tractive Effort (lbs / kg)16,273 / 7381.32
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.40
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)14.42 / 1.34
Evaporative Heating Surface (sq ft / m2)672 / 62.43
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)672 / 62.43
Evaporative Heating Surface/Cylinder Volume169.66
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2509
Same as above plus superheater percentage2509
Same as above but substitute firebox area for grate area
Power L1
Power MT

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