DRG Class 89.0

DRG Class 89.0
Number(s):	DRG 89 001–010
Quantity:	10
Manufacturer:	Berliner Maschinenbau, previously Louis Schwartzkopff, Henschel
Year(s) of manufacture:	1934 (6 units) 1937 (4 units)
Retired:	1968
Wheel arrangement:	0-6-0
Axle arrangement:	C n2t (001–003) C h2t (004–010)
Type:	Gt 33.15
Gauge:	1,435 mm
Length over buffers:	9,600 mm
Service weight:	46,6 t
Adhesive weight:	46.6 t
Axle load:	15.6 t
Top speed:	45 km/h
Indicated Power:	235 kW (wet steam) 385 kW (superheated steam)
Driving wheel diameter:	1,100 mm
No. of cylinders:	2
Cylinder bore:	420 mm
Piston stroke:	550 mm
Boiler Overpressure:	14 bar
Grate area:	1.42 m²
Superheater area:	24.10 m²
Evaporative heating area:	67.86 m²
Water capacity:	4.5 m³ (wet steam), 4.8 m³ (superheated)
Fuel:	2.6 t coal
Brakes:	Knorr automatic, single-chamber, compressed-air brakes
Parking brake:	Counterweight brake

The DRG Class 89.0 was a goods train tank engine of standard design (see Einheitsdampflokomotive) built for the Deutsche Reichsbahn (DRG).

History

It was the smallest standard locomotive in service with the Reichsbahn. Whilst numbers 89 001 - 89 003 were supplied as saturated steam engines, the remaining seven were superheated locomotives. After the Second World War half the machines went to the Polish State Railway (PKP) and half to the East German Deutsche Reichsbahn (DR). The last engine 89 008 was taken out of service in 1968 at Dresden-Altstadt locomotive depot (Bahnbetriebswerk or Bw) and remains preserved in the Dresden Transport Museum as a heritage locomotive. Since 1992 the engine has been in the ownership of the Mecklenburg Railway Friends (Mecklenburgischen Eisenbahnfreunde) in Schwerin.

Although this engine was never in service with the Deutsche Bundesbahn, interestingly it is in the DB's transport directory.

Model Railway

A Z scale model of the Class 89.0 locomotive is the smallest mass-manufactured locomotive model in the world and has been used as the symbol for this model railway gauge.

There has also been a model by the firm of Märklin for decades in H0 scale. The DB variant of this model has no real prototype, however, because this engine was never in the DB's fleet.

Literature

Horst J. Obermayer: Taschenbuch Deutsche Dampflokomotiven, Regelspur. Franckh'sche Verlagshandlung, Stuttgart 1969; ISBN 3-440-05530-2

See also

• List of DRG locomotives and railbuses

External links

• Technical drawings and date for the Class 89.0 goods train tank locomotive at dlok.de
• Photos and date for 89 008
• There is a relevant English-language forum at Railways of Germany