Bavarian C II

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

Articulated variant (Stütztender)

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	0-6-4T, 0-6-6T
Axle arrangement	C2′ n2, C3′ n2
Track gauge	1,435 mm (4 ft 8 ^1⁄2 in)
Length over buffers	12,369 mm (40 ft 7 in)
Service weight	50.0 t (49.2 long tons; 55.1 short tons)
Adhesive weight	34.2 t (33.7 long tons; 37.7 short tons)
Axle load	11.4 t (11.2 long tons; 12.6 short tons)
Top speed	45 km/h (28 mph)
Driving wheel diameter	1,253 mm (4 ft 1 ^3⁄8 in)
No. of cylinders	2
Cylinder bore	457 mm (18 in)
Piston stroke	660 mm (26 in)
Boiler Overpressure	8 kgf/cm^2 (785 kPa; 114 lbf/in^2)
Grate area	1.40 m^2 (15.1 sq ft)
Evaporative heating area	113.10 m^2 (1,217.4 sq ft)

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

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 ^1⁄2 in)
Length over buffers	13,500 mm (44 ft 3 ^1⁄2 in)
Service weight	34.3 t (33.8 long tons; 37.8 short tons)
Adhesive weight	34.3 t (33.8 long tons; 37.8 short tons)
Axle load	12.5 t (12.3 long tons; 13.8 short tons)
Top speed	45 km/h (28 mph)
Driving wheel diameter	1,253 mm (4 ft 1 ^3⁄8 in)
No. of cylinders	2
Cylinder bore	457 mm (18 in)
Piston stroke	660 mm (26 in)
Boiler Overpressure	8 or 10 kgf/cm^2 (785 or 981 kPa; 114 or 142 lbf/in^2)
Grate area	1.35 m^2 (14.5 sq ft)
Evaporative heating area	113.10 m^2 (1,217.4 sq ft)
Tender	2 T 9.25
Water capacity	9.25 m^3 (2,030 imp gal; 2,440 US gal)

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 Bavarian C I class 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

• List of Bavarian locomotives and railbuses

Sources

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