page_title: 4-4-0
section_title: Narrow gauge
hierarchical_section_title: 4-4-0 / Usage / South Africa / Narrow gauge
caption_attribution_description: English: SAR Class NG6 106 (4-4-0), Fort Beaufort
context_page_description: 4-4-0 is a locomotive type with a classification that uses the Whyte notation for the classification of steam locomotives by wheel arrangement and represents the arrangement: four leading wheels on two axles, four powered and coupled driving wheels on two axles, and a lack of trailing wheels. Due to the large number of the type that were produced and used in the United States, the 4-4-0 is most commonly known as the American type, but the type subsequently also became popular in the United Kingdom, where large numbers were produced.
  Almost every major railroad that operated in North America in the first half of the 19th century owned and operated locomotives of this type.
  The first use of the name American to describe locomotives of this wheel arrangement was made by Railroad Gazette in April 1872. Prior to that, this wheel arrangement was known as a standard or eight-wheeler.
  This locomotive type was so successful on railroads in the United States of America that many earlier 4-2-0 and 2-4-0 locomotives were rebuilt as 4-4-0s by the middle of the 19th century.
context_section_description: In 1907 and 1910, the Tongaat Sugar Estates in Natal acquired two 4-4-0 tank locomotives from W. G. Bagnall for their 2 ft (610 mm) gauge line. These locomotives had 9 by 14 inches (229 by 356 millimetres) cylinders. A further eleven similar locomotives, but with 10 by 15 inches (254 by 381 millimetres) cylinders, were delivered from the same manufacturer between 1926 and 1946.
  In 1915, thirteen of the Beira Railway’s retired narrow gauge Falcon F2 and F4 locomotives were acquired from Mozambique by the Union Defence Forces for use in South Africa, where they replaced locomotives that had been commandeered for the war effort in German South West Africa during the First World War. At the end of the war, these locomotives were staged until they were placed back in service by the South African Railways (SAR) in 1921. When a system of grouping narrow gauge locomotives into classes was eventually introduced by the SAR between 1928 and 1930, they were classified as Class NG6.
  In 1936, Bagnall built a single 4-4-0 tank locomotive, named Burnside and with 11 ¹⁄₂ by 15 inches (292 by 381 millimetres) cylinders, for the 2 ft 0 ¹⁄₂ in (622 mm) gauge line of the Natal Estates sugar plantation at Mount Edgecombe in Natal.
caption: SAR Class NG6 no. 106
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