DRG Class 87
Encyclopedia
The German Class 87 was a standard (see Einheitsdampflokomotive
) goods train tank locomotive
with the Deutsche Reichsbahn-Gesellschaft
(DRG). It was specifically designed by the firm of Orenstein & Koppel for use in Hamburg Harbour
. The harbour lines had minimal curve radii of only 100 m and high train loads to be moved. The axle load
had to be no more than 17,5 tons. These requirements resulted in an axle count of five axles. In order to keep wear and tear on the running gear within acceptable limits only the middle three wheelsets were linked by coupling rods, the two Luttermöller
outside axles were driven by cogs.
Due to damage the vehicles were partly also operated as 1'D, D1' or 1'C1' engines.
From 1951 they were superseded by DB Class 82
locomotives.
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...
) goods train tank locomotive
Tank locomotive
A tank locomotive or tank engine is a steam locomotive that carries its water in one or more on-board water tanks, instead of pulling it behind it in a tender. It will most likely also have some kind of bunker to hold the fuel. There are several different types of tank locomotive dependent upon...
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....
(DRG). It was specifically designed by the firm of Orenstein & Koppel for use in Hamburg Harbour
Hamburg Harbour
-External links:* * Port of Hamburg: Facts, figures, and outlook* * Currently under construction in the HafenCity* *...
. The harbour lines had minimal curve radii of only 100 m and high train loads to be moved. The axle load
Axle load
The axle load of a wheeled vehicle is the total weight felt by the roadway for all wheels connected to a given axle. Viewed another way, it is the fraction of total vehicle weight resting on a given axle...
had to be no more than 17,5 tons. These requirements resulted in an axle count of five axles. In order to keep wear and tear on the running gear within acceptable limits only the middle three wheelsets were linked by coupling rods, the two Luttermöller
Luttermöller axle
Steam locomotives with several axles or wheelsets connected to one another by coupling rods are not able to negotiate tight curves well. In order to assist such locomotives, the manager of the Orenstein & Koppel factory in Berlin, Dr...
outside axles were driven by cogs.
Due to damage the vehicles were partly also operated as 1'D, D1' or 1'C1' engines.
From 1951 they were superseded by DB Class 82
DB Class 82
The DB Class 82 was a goods train tank locomotive with the Deutsche Bundesbahn in Germany, that was built in the period after the Second World War and was intended for shunting and normal rail services...
locomotives.
External links
- There is a relevant English-language forum at Railways of Germany