DRG Class 02
Encyclopedia
The German DRG Class 02 (Baureihe 02 or BR 02) engines were standard (Einheitslokomotive
n) express train locomotives with the Deutsche Reichsbahn-Gesellschaft
. Number 02 001 was the first Einheitsdampflokomotive
in the DRG
to be completed.
In procuring a standard express train
steam locomotive, the Deutsche Reichsbahn carried out a comparison between a superheated two-cylinder type (the DRG Class 01
) and a four-cylinder compound engine (the Class 02). Ten examples of each type were built from 1925, and the Class 02 vehicles were given operating numbers 02 001 – 02 010. The first eight engines were manufactured in 1925 by the firm of Henschel, two more were built in 1926 by Maffei.
Because the Class 02 steam engines were badly designed, the compound engine could only produce a high level of power at speeds of over 70 km/h. In addition, below 1000 PSi its steam consumption was higher than that of the Class 01.
Compared with the Class 01s, these engines had a complicated, and therefore maintenance-intensive, drive; as a result no more were ordered. From 1937 to 1942 the vehicles were successively converted to two-cylinder operation and regrouped as Class 01s with the new numbers 01 011 and 01 233 – 01 241.
The first eight engines were equipped with 2'2' T 30 tenders; the other two with 2'2 T 32 tenders. Later on, the second tender was coupled to all of the first eight engines as well.
Einheitslokomotive
Einheitslokomotive was the name given to standard classes of German steam locomotives built from 1925 under the direction of the Deutsche Reichsbahn to certain common designs, and also to standard German electric locomotives produced after 1952 for the Deutsche Bundesbahn...
n) express train locomotives with the Deutsche Reichsbahn-Gesellschaft
Deutsche Reichsbahn-Gesellschaft
The Deutsche Reichsbahn – was the name of the German national railway created from the railways of the individual states of the German Empire following the end of World War I....
. Number 02 001 was the first Einheitsdampflokomotive
Einheitsdampflokomotive
The German term Einheitsdampflokomotive, sometimes shortened to Einheitslokomotive or Einheitslok, means standard steam locomotive and refers to the steam engines built in Germany after 1925 under the direction of the Deutsche Reichsbahn-Gesellschaft...
in the DRG
Deutsche Reichsbahn-Gesellschaft
The Deutsche Reichsbahn – was the name of the German national railway created from the railways of the individual states of the German Empire following the end of World War I....
to be completed.
In procuring a standard express train
Express train
Express trains are a form of rail service. Express trains make only a small number of stops, instead of stopping at every single station...
steam locomotive, the Deutsche Reichsbahn carried out a comparison between a superheated two-cylinder type (the DRG Class 01
DRG Class 01
The Deutsche Reichsbahn-Gesellschaft's BR 01 steam locomotives were the first standardised steam express passenger locomotives built by the unified German railway system. They were of 4-6-2 "Pacific" wheel arrangement in the Whyte notation, or 2′C1′ h2 in the UIC classification. The idea of...
) and a four-cylinder compound engine (the Class 02). Ten examples of each type were built from 1925, and the Class 02 vehicles were given operating numbers 02 001 – 02 010. The first eight engines were manufactured in 1925 by the firm of Henschel, two more were built in 1926 by Maffei.
Because the Class 02 steam engines were badly designed, the compound engine could only produce a high level of power at speeds of over 70 km/h. In addition, below 1000 PSi its steam consumption was higher than that of the Class 01.
Compared with the Class 01s, these engines had a complicated, and therefore maintenance-intensive, drive; as a result no more were ordered. From 1937 to 1942 the vehicles were successively converted to two-cylinder operation and regrouped as Class 01s with the new numbers 01 011 and 01 233 – 01 241.
The first eight engines were equipped with 2'2' T 30 tenders; the other two with 2'2 T 32 tenders. Later on, the second tender was coupled to all of the first eight engines as well.
Literature
- Deutsche Eisenbahnen. Weltbild Verlag
- Weisbrod/Petznick: Baureihe 01. Transpress Verlag
- Großes Lok-Portrait 01.05. EK Verlag, Freiburg
- Konrad Koschinski: Legendäre Baureihe 01. Verlagsgruppe Bahn, 2006 (Eisenbahn-Journal: Sonderausgabe 2006,2). ISBN 3-89610-156-0
External links
- Photos of locomotive 02 003
- There is a relevant English-language forum at Railways of Germany