Baden IV c

Baden IV c
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

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

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

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

See also

• Grand Duchy of Baden State Railway
• List of Baden locomotives and railbuses