NZR F Class - Design

Design

The F class was a tank locomotive with a wheel arrangement of 0-6-0. They operated essentially everywhere on New Zealand's railway network doing a variety of jobs. F class locomotives could haul light passenger trains at speeds up to 70 km/h (40 mph) or pull up to 800 tonnes of freight on flat trackage. Originally the design was meant for use on the Southland Railways, and three prototypes were built by Neilsons of Glasgow in 1872; among these was what would become F 13, now preserved at the Ferrymead Railway in Christchurch.

The engines were originally given names from the works of Sir Walter Scott by order of a Government official. Originally some had New Zealand names; for example F 36 (later F 13) was originally named Clutha, and later renamed Edie Ochiltree. Some were at times classified as the O class as these had Cartazzi axles, but by the nationwide renumbering of 1890 all were classified F. By this time none of the engines carried names any more.

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