Baden IV c

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Baden IV c
Kraichgaubahn Joehlingen 1879.jpg
Number(s) 1 ... 393
Quantity 59
Manufacturer MBG Karlsruhe
Year(s) of manufacture 1875 - 1887
Retired 1901 - 1925
Wheel arrangement 2-4-0
Axle arrangement 1B n2
Length over buffers 14,367 mm
Height 4,150 mm
Wheelbase 2,300 mm, from 1879: 2,200 mm
Overall wheelbase 3,900 mm
Empty weight 31.80 t
Service weight 35.50 t
Adhesive weight 22.50 t
Axle load 11.30 t
Top speed 70 km/h
Coupled wheel diameter 1,680 mm
Leading wheel diameter 1,080 mm
Valve gear Stephenson
No. of cylinders 2
Cylinder bore 435 mm
Piston stroke 610 mm
Boiler Overpressure 9.0 bar
No. of heating tubes 198
Heating tube length 3.300 mm
Grate area 1.47 m2
Radiative heating area 6.03 m2
Tube heating area 86.27 m2
Evaporative heating area 92.30 m2
Locomotive brakes Screw brake, later several had counter-pressure brakes
Train brakes Westinghouse compressed air brake

The steam locomotives of Baden Class IV c were passenger locomotives operated by Grand Duchy of Baden State Railway in the former south German state of Baden.

History[edit]

As part of the procurement of 2-4-0 locomotives in the early 1870s, a total of eight batches of Class IV c engines were ordered. These locomotives were used above all on lines with steep inclines in the Black Forest and the Odenwald. As a result, several engines were equipped with a Riggenbach counter-pressure brake.

Design features[edit]

Then dimensions of these engines were largely the same as those of the Class IV b. However the double frame was dropped and replaced by a simple plate frame. The engine had a very short wheelbase and as a result good curve-running performance. In addition the carrying axle had a side play of 10 mm. It was returned to its centre position by sloping bearing surfaces (geneigte Doppelflächen). The grate area of the firebox turned out to be very small; as a result its steam generation was not particularly satisfactory. Trials with ribbed tubes did not produce any improvements. The large steam dome sat on the rear boiler section.

The outside wet-steam engine had inside valves and drove the first coupled axle. The wheels were sprung with leaf springs located over the top, that were linked by a compensating lever between the coupled wheels.

The vehicles were equipped with tenders of classes 2 T 8 or 2 T 6.67. Several locomotives were equipped with rearward-facing driver's cabs on tenders. This enabled them to work routes without a turntable.

Sources[edit]

  • Hermann Lohr, Georg Thielmann: Lokomotiv-Archiv Baden. transpress, Berlin 1988, ISBN 3-344-00210-4

See also[edit]

External links[edit]