page_title: 4-6-2
section_title: Metre gauge
hierarchical_section_title: 4-6-2 / Usage / Tunisia / Metre gauge
caption_attribution_description: English: Pacific No. 808 built by SACM for the metre gauge Chemins de Fer Bone a Guelma
context_page_description: Under the Whyte notation for the classification of steam locomotives, 4-6-2 represents the wheel arrangement of four leading wheels on two axles, six powered and coupled driving wheels on three axles and two trailing wheels on one axle. The 4-6-2 locomotive became almost globally known as a Pacific type.
context_section_description: Also in 1914, the Chemins de fer Bône-Guelma ordered five 1,000 mm (3 ft 3 ³⁄₈ in) metre gauge locomotives from SACM. The engine weight in working order was 56.6 metric tonnes, with coupled wheels of 1,500 millimetres (59.1 inches) diameter and two 465 by 610 millimetres (18.3 by 24.0 inches) cylinders.
  They were considered very successful and Tunisian Railways ordered three more in 1928. These were used on the 149 kilometres (93 miles) mainline south from Tunis to Sousse and the 279 kilometres (173 miles) line to Sfax. Between the two World Wars, they were renowned for providing the fastest metre gauge service in the world and speeds of over 100 kilometres per hour (62 miles per hour) were common in ordinary service.
  When the Tunisian Railways dieselised between 1951 and 1955, these locomotives were withdrawn from service and placed in staging, even though as late as in 1952 they still regularly achieved speeds of up to 110 kilometres per hour (68 miles per hour). In 1958, numbers 231.801, 231.805, 231.807 and 231.808 were sold to the Ferrocarril La Robla in Spain. Those which remained in Tunisia were scrapped in 1959. (Also see Spain)
caption: Metre gauge Pacific No. 231.808
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