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NZR RM class (railcar) : ウィキペディア英語版 | NZR RM class (Thomas Transmission) The NZR RM class Thomas Transmission railcar was an experimental electro-mechanical railcar operated by the New Zealand Railways Department (NZR). It was introduced to service in 1916 and therefore was one of the earliest railcars to operate in New Zealand. == Development ==
In the early 20th century, NZR sought a means of providing economic services on lowly trafficked services including some suburban routes and to provide a faster alternative to mixed trains on rural lines. It aimed to develop a light and self-contained vehicle that could operate economically even with low passenger levels. The first true railcar, the MacEwan Pratt petrol railcar of 1912, did not pass its tests and never entered revenue service. It was followed by the Westinghouse railcar in 1914, which did enter revenue service but proved unreliable. Accordingly, in 1916, NZR developed its third railcar, the Thomas Transmission railcar. It was classified as RM 2; the Westinghouse railcar had previously re-used the MacEwan-Pratt railcar's classification of RM 1.〔Jones, ''Where Railcars Roamed'', p. 6.〕
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