Bavarian State 0-8-0 Locomotives in Germany


Class Details by Steve Llanso of Sweat House Media

Class GtL 4/4 / BR 98.8-9 (Locobase 6036)

Data from Christian Lindecke's website [link] (visited 15 May 2004) (translated by Google), US Military Railway Service Equipment Data Book -- German Locomotives supplied by Allen Stanley from his extensive Rail Data Exchange, Wikipedia ([link], last accessed 28 September 2008), supplemented and amended by [link], last accessed on 14 May 2011.

All-adhesion examples of the typical Krauss localbahn locomotive delivered to the K.Bay.Sts.Bahn over 16 years. This little 8-coupled tank came in three batches. The first 53, built from 1911-1922, weighed in at 45,178 kg (99,600 lb) while the next 64 gained about a short ton to measure as shown in the specifications. These were delivered in 1923 (30), 1924 (17), and 1927 (1927). As noted in Locobase 6035, 29 were modified with a leading axle to raise the maximum speed from 40 km/h (25 mph) to 55 km/h.

Described by the Bavarian Branchlines site ([link], 18 May 2004) as "rugged and reliable", virtually all of the class remained in service for many years after World War II, the last being retired in 1969.

NB: Gieseler uses the same boiler data for all of the batches, which seems unlikely. However, the data apparently do apply to that great majority of engines in the class that were delivered in 1922-1927.

On the other hand, Wikipedia and other sources (notably the dampflok-bilder site that presents photographs and data -- [link]) agree on a different set of slightly different data. Heating surface area is given as 60.99 sq m, superheater at 16.93 sq m, for a combined heating surface area of 77.92 sq m).

The differences are small and Locobase chose Gieseler because he also presents the boiler dimensions and tube counts.

The dampflok-bilder site's photos show how little the outward appearance of the design changed over the years

Principal Dimensions by Steve Llanso of Middle Run Media
ClassGtL 4/4 / BR 98.8-9
Locobase ID6036
RailroadBavarian State
CountryGermany
Whyte0-8-0T
Number in Class117
Road Numbers98 801-98 917
GaugeStd
Number Built117
BuilderKrauss
Year1911
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)25,794 / 11,700
Weight on Drivers (lbs / kg)101,853 / 46,200
Engine Weight (lbs / kg)120,152 / 54,500
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)1663 / 6.30
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)3 / 3
Minimum weight of rail (calculated) (lb/yd / kg/m)42 / 21
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)39.40 / 1000
Boiler Pressure (psi / kPa)174 / 1200
High Pressure Cylinders (dia x stroke) (in / mm)18.11" x 20.08" / 460x508
Tractive Effort (lbs / kg)24,721 / 11213.27
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.12
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)13.99 / 1.30
Evaporative Heating Surface (sq ft / m2)661 / 61.40
Superheating Surface (sq ft / m2)203 / 18.90
Combined Heating Surface (sq ft / m2)864 / 80.30
Evaporative Heating Surface/Cylinder Volume110.41
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2434
Same as above plus superheater percentage2994
Same as above but substitute firebox area for grate area
Power L1
Power MT

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