Bavarian C II

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The Bavarian C II was an early German steam locomotive operated by the Royal Bavarian State Railways (Königlich Bayerische Staatsbahn).

Articulated variant (Stütztender)[edit]

Bavarian C II
Articulated variant
(Stütztender)
Number(s) 189 HERCULES to 199 THESEUS
Quantity 5
Manufacturer Maffei
Year(s) of manufacture 1857–1858
Retired by 1906
Wheel arrangement 0-4-4, 0-6-6
Axle arrangement C2' n2, C3' n2
Track gauge 1,435 mm (4 ft 8 12 in)
Length over buffers 12,369 mm
Service weight 50.0 t
Adhesive weight 34.2 t
Axle load 11.4 t
Top speed 45 km/h
Driving wheel diameter 1,253 mm
No. of cylinders 2
Cylinder bore 457 mm
Piston stroke 660 mm
Boiler Overpressure 8 bar
Grate area 1.40 m2
Evaporative heating area 113.10 m2

The first C IIs were built experimentally as articulated locomotives. The concept was based on an idea that had been developed by Wilhelm von Engerth (c.f. the Engerth locomotive), whereby the boiler barrel was supported by the tender - sometimes called a Stütztender or 'supported tender'. Because the engines did not ride smoothly however, they were converted in 1870. Initially the Stütztender was removed and, in order to balance out the uneven weight distribution on the axles, the first axle was uncoupled, so that the locomotives had a 1B axle arrangement. When, after a few years, the boiler had to be replaced, it was positioned further forward to enable a better distribution of weight. As a result, the former articulated locomotives were then the same as the standard C II locomotives and became six-coupled again.. A total of five were built by Maffei. They were named: HERCULES, HECTOR, ACHILLES, AJAX and THESEUS.

Standard variant[edit]

Bavarian C II
Standard variant
Number(s) 220 JASON to 368 SCHÄRDING
Quantity 68
Manufacturer Maffei, Krauss
Year(s) of manufacture 1861–1868
Retired by 1906
Wheel arrangement 0-6-0
Axle arrangement C n2
Track gauge 1,435 mm (4 ft 8 12 in)
Length over buffers 13,500 mm
Service weight 34.3 t
Adhesive weight 34.3 t
Axle load 12.5 t
Top speed 45 km/h
Driving wheel diameter 1,253 mm
No. of cylinders 2
Cylinder bore 457 mm
Piston stroke 660 mm
Boiler Overpressure 8/10 bar
Grate area 1.35 m2
Evaporative heating area 113.10 m2
Tender 2 T 9.25
Water capacity 9.25 m3

The C II locomotives were needed to handle the growth in goods traffic. The standard variant of the C II series was built as an 0-6-0 engine with a 4-wheeled tender. It was derived from the Class CI.1 and was given an external locomotive frame, horizontal outside cylinders, an internal Stephenson valve gear and a 'long-necked crank' (Langhalskurbel). The transition from boiler barrel to outer firebox had been tapered so that it could fit between the rear axle. Instead of a driver's cab, these locos were given a weather shield (Wetterschirm), similar to those on present-day motorbikes. Their retirement began in 1891 and was complete by the end of the 1920s. Several examples went as wartime reparations to France and Belgium.

They were equipped with a Bavarian 2 T 9,25 tender.

See also[edit]

Sources[edit]

  • von Welser, Ludwig. Bayern Report, Band No. 4. Eisenbahn Journal Archiv. ISBN 3-922404-69-3.