page_title: SJ A
section_title: A class tender
hierarchical_section_title: SJ A / Related development / A class tender
caption_attribution_description: IMG_3558
context_page_description: The A class of the Swedish State Railways was a type of steam locomotive built in 1906–1909 for hauling mainline express trains. The 26 locomotives were built to replace older types that could not cope with the increasingly heavy express trains, but soon became insufficient themselves. They were relegated to less important passenger trains, and five were transferred to then-independent Ostkustbanan in the 1920s, but returned when that company was nationalized in 1933.
  OKB and SJ had a total of eight locomotives rebuilt, replacing the trailing wheels with an extra pair of driving wheels. The locomotives that had not been rebuilt were scrapped in the late 1930s, except for number 1001 which is preserved at the Swedish Railway Museum, but the rebuilt ones survived until the early 1970s. OKB also built two locomotives of a related design, but with a smaller driving wheel diameter. These were also taken over by SJ and were in regular use until 1961; one has been preserved.
  The A class locomotives were the first of SJ with superheaters, and have been described as the first modern steam locomotives in Sweden.
context_section_description: The A class locomotives were delivered with six-wheeled C class tenders, but new A class tenders were delivered between 1909 and 1911. It was a bogie tender of the Gölsdorf model, derived from the R class tender, which was based on a tender type of the Austrian railways. The tender had an empty weight of 20.6 metric tons (20.3 long tons; 22.7 short tons), and could carry 6.0 tonnes (5.9 long tons; 6.6 short tons) of coal and 20.0 cubic metres (4,400 imp gal; 5,300 US gal) of water. It became something of a standard type: all the 96 B class locomotives built for SJ were given A class tenders, and later also some locomotives of the C, E, E2, G6 and L classes.
caption: The A class tender was also used with B class locomotives. This image of preserved B 1220 shows the shape of the Gölsdorf type tender.
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