| 词条 | HNJ Mb |
| 释义 |
| name = HNJ Mb | image= | caption = | powertype = Steam | designer= | builder = NOHAB | builddate = 1931–1936 | whytetype = 4-8-0 | uicclass = 2′D h3 | gauge = {{Track gauge|sg|allk=on}} | leadingdiameter = {{convert|900|mm|ftin|0|abbr=on}} | driverdiameter = {{convert|1400|mm|ftin|0|abbr=on}} | trailingdiameter = | length = {{convert|18000|mm|ftin|0|abbr=on}} | locoweight = {{convert|73.5|t}} | locotenderweight = {{convert|111.5|t}} |fueltype = Coal |fuelcap = {{convert|5.0|t|LT ST}} |watercap = {{convert|15.0|m3|impgal usgal|abbr=on}} | cylindercount = Three | cylindersize = | maxspeed = {{convert|70|km/h|mph|abbr=on}} |tractiveeffort = {{convert|12.1|Mp|kN lbf|abbr=on|lk=on}} | poweroutput = | operator = {{unbulleted list|Halmstad–Nässjö Järnväg|Statens Järnvägar}} | fleetnumbers = | numinclass = 6 | locale= | disposition = Scrapped | notes = References: }} The Mb, later G12 class of Halmstad–Nässjö Järnväg (HNJ), known after nationalization in 1945 as the E9 class of the Swedish State Railways (SJ), was a type of steam locomotive built primarily for freight traffic. They were the basis for the nearly identical SJ E10 class. HistoryThree Mb class three-cylinder 4-8-0 locomotives were built by NOHAB for HNJ in 1931, based on an older type, the 2-8-0 M class built in Germany in 1922.[3] HNJ changed their type designations the year after, and the Mb class became the G12 class, where G meant that they were intended for freight trains (Swedish: godståg).[3] Three more G12 class locomotives were built in 1936. Despite their designation the locomotives were also used in passenger trains.[6] They remained on the HNJ network after nationalization in 1945, but were also used on the line between Alvesta and Borås. SJ referred to the type as the E9 class.[6] They were in service until 1959, and were then placed in reserve. They were scrapped between 1974 and 1976, and none have been preserved.[3] In the 1940s the Swedish State Railways (SJ) saw a need for modern steam locomotives for freight traffic on the Inland Line and in southern Norrland.[6] NOHAB built ten E10 class locomotives in 1947 from the same blueprints, but with some modifications. The E10 class locomotives were in use until the 1960s.[6] References1. ^1 2 3 4 {{cite book |last=Karlsson |first=Lars Olov |date=2008 |title=SJ:s ånglok |trans-title= |url= |language=sv |location= |publisher=Frank Stenvalls Förlag |isbn=978-91-7266-171-4 |page=93 }} [1][2]2. ^1 2 3 {{cite book |last=Karlsson |first=Lars Olov |date=2012 |title=Ånglok vid Sveriges normalspåriga enskilda järnvägar. Del 1. BJ–LyJ |trans-title= |url= |language=sv |location=Malmö |publisher=Frank Stenvalls Förlag |isbn=978-91-7266-182-0 |pages=128–131}} }}{{Swedish stock}} 4 : Steam locomotives of Sweden|4-8-0 locomotives|Freight locomotives|Standard gauge locomotives of Sweden |
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