Invention and Engineering

British Rail Class 42

The British Rail Class 42 Warship, originally known as the D800 Warship, is a class of diesel-hydraulic locomotives introduced in 1958. It was apparent at that time that the largest centre of expertise on diesel-hydraulic locomotives was in West Germany. The Western Region of British Railways negotiated a licence with German manufacturers to scale down the German Federal Railway's "V200" design to suit the smaller loading gauge of the British network, and to allow British manufacturers to construct the new locomotives. The resultant design was both cosmetically and functionally similar to the original V200 design. Warship locomotives were divided into two batches: those built at Swindon Works were numbered in the series D800-D832 and D866-D870, had a maximum tractive effort of 52,400 pounds-force (233,000 N) and eventually became the Class 42. 33 others, D833–D865, were constructed by the North British Locomotive Company and became British Rail Class 43. They were allocated to Bristol Bath Road, Plymouth Laira, Newton Abbot and Old Oak Common.

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• ▸Economy
• ▸Bingham Canyon Mine
• ▸History of rockets

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