SJ Da
Encyclopedia
Da is a series of locomotive
s used by Statens Järnvägar
(SJ) of Sweden. 93 units were built by ASEA
between 1953-60. They remained in service until the 1990s.
layout that was by then regarded as obsolete by most other undertakings. It was used as a universal locomotive throughout the SJ system. A more powerful, but slower Dm
series was delivered at the same time for use on Malmbanan
. During the 1970s the Da's were rebuilt, including increased cab comfort. SJ started retiring the locos during the 1980s and had finished the task by the mid 1990s. Some units were bought by Tågfrakt and Tågkompaniet
, later being sold to NetRail. One unit has been preserved by the Swedish Railway Museum
.
Locomotive
A locomotive is a railway vehicle that provides the motive power for a train. The word originates from the Latin loco – "from a place", ablative of locus, "place" + Medieval Latin motivus, "causing motion", and is a shortened form of the term locomotive engine, first used in the early 19th...
s used by Statens Järnvägar
Statens Järnvägar
The Swedish State Railways or SJ, originally the Royal Railway Board , is a former government agency responsible for operating the state railways in Sweden....
(SJ) of Sweden. 93 units were built by ASEA
ASEA
Allmänna Svenska Elektriska Aktiebolaget was a Swedish industry company. It merged with the Swiss Brown, Boveri & Cie in 1988 to form Asea Brown Boveri...
between 1953-60. They remained in service until the 1990s.
History
After the last D-locomotive had been delivered in 1943, SJ needed more locomotives during the late 1940s with new lines being electrified. The solution was the Da, a modernised version of the D-type including the rigid-frame coupling rodCoupling rod
right|thumb|connecting rod and coupling rods attached to a small locomotive driving wheelA coupling rod or side rod connects the driving wheels of a locomotive. Steam locomotives in particular usually have them, but some diesel and electric locomotives, especially older ones and shunters, also have...
layout that was by then regarded as obsolete by most other undertakings. It was used as a universal locomotive throughout the SJ system. A more powerful, but slower Dm
SJ Dm3
Dm and Dm3 is a series of locomotives used by Statens Järnvägar and later Malmtafik i Kiruna for pulling iron ore trains on Malmbanan in Sweden and Ofotbanen in Norway. A total of 39 double-locomotives were delivered between 1953 and 1971, built by ASEA. A further 19 center locomotives were...
series was delivered at the same time for use on Malmbanan
Malmbanan
The Iron Ore Line is a long railway line between Riksgränsen and Boden in Norrbotten County, Sweden. The line contains two branches, from Kiruna to Svappavaara and from Gällivare to Koskullskulle. The term is often colloquially used to also include the Ofoten Line, from Riksgränsen to Narvik in...
. During the 1970s the Da's were rebuilt, including increased cab comfort. SJ started retiring the locos during the 1980s and had finished the task by the mid 1990s. Some units were bought by Tågfrakt and Tågkompaniet
Tågkompaniet
Tågkompaniet or Svenska Tågkompaniet AB is a Swedish railway company that operates franchises in Northern Sweden and Greater Stockholm. The company was founded in 1999 by three former railway employees in Statens Järnvägar and the investment company Småföretagsinvest/Fylkinvest...
, later being sold to NetRail. One unit has been preserved by the Swedish Railway Museum
Swedish Railway Museum
The Swedish Railway Museum, , in Gävle, Gästrikland, Sweden, national museum for Sweden's railway history.The Swedish Railway Museum is tasked with acquiring, preserving and supplying knowledge about Swedish railway history on the basis of the national collection...
.