- Bavarian BB II
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Bavarian BB II
DRG Class 98.7
Number(s): DRG 98 701–371 Quantity: 31 Manufacturer: Maffei Year(s) of manufacture: 1899–1908 Retired: 1940 (?) Wheel arrangement: 0-4-4-0 Axle arrangement: B'B n4vt Gauge: 1,435 mm Length over buffers: 10,010 mm Service weight: 42.6 t Adhesive weight: 42.6 t Axle load: 10.7 t Top speed: 45 km/h Indicated Power: 280 kW Driving wheel diameter: 1,006 mm No. of cylinders: 4 LP cylinder bore: 490 mm HP cylinder bore: 310 mm Piston stroke: 530 mm Boiler Overpressure: 12 bar Grate area: 1.40 m² Evaporative heating area: 67.70 m² Locomotive brakes: Vacuum brakes, later compressed air brakes The Bavarian Class BB II engines were Mallet saturated steam locomotives in the service of the Royal Bavarian State Railways (Königlich Bayerische Staats-Eisenbahnen).
They were specially designed for branch lines with tight curves and supplied in two series. The first series comprised 29 engines and was built between 1899 and 1903. The other two maschines were delivered in 1908 to the state railway and were somewhat longer and heavier than the other locomotives.
Although the Deutsche Reichsbahn-Gesellschaft took over all the vehicles in 1925 as DRG Class 98.7, all bar three were retired during the 1930s due to their unsatisfactory riding performance. The last three engines were used after 1940 as industrial locomotives.
One example, the 98 727, was sold in 1943 to the Regensburg factory of Südzucker AG and was given the operating number 4. It was donated in 1972 to the Darmstadt-Kranichstein Railway Museum (Eisenbahnmuseum Darmstadt-Kranichstein) and is still preserved today.
External links
- Photograph of 98 727 as a museum locomotive (1973)
- There is a relevant English-language forum at Railways of Germany
Classes of Bavarian locomotive Early locomotives 
Passenger and express train locomotives Goods train locomotives Tank locomotives Branch line locomotives D VI · D VII · D VIII · D X · D XI · BB II · PtL 2/2 (Maffei) · PtL 2/2 (Krauss) · PtL 3/3 · PtL 3/4 · PtzL 3/4 · GtL 4/4 · (GtL 4/5 - DRG 98.10) · (GtL 4/5 - DRG 98.11)Narrow gauge locomotives Electric locomotives Railbuses Bavarian Ostbahn locomotives A 1 - A 12 · A 13 - A 24 · A 1 - A 2 · B 1 - B 66 · B 67 - B 78 · B 79 - B 90 · B 91 - B 96 · B 97 - B 109 · C 1 - C 12 · C 13 - C 64 · D 1 - D 12 · C 13 - C 14Categories:- Mallet locomotives
- Locomotives of Bavaria
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