page_title: British Rail Class 42
section_title: D821 'Greyhound'
hierarchical_section_title: British Rail Class 42 / Post-BR use and preservation / D821 'Greyhound'
caption_attribution_description: D821 Warship 'Greyhound', temporarily renamed 'Chris Broadhurst', at Kidderminster
context_page_description: British Railways' Class 42 Warship diesel-hydraulic locomotives were 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 bears a close resemblance, both cosmetically and in the engineering employed, to the original V200 design. Warship locomotives were divided into two batches: those built at BR's Swindon works were numbered in the series D800-D832 and D866-D870, had a maximum tractive effort of 52,400 pounds-force and eventually became British Rail 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.
  Two Class 42s are preserved, D821 and D832.
context_section_description: Around 1971, an approach was made by the Diesel Traction Group seeking to purchase Class 22 D6319. A price was agreed but before the new owners could retrieve their purchase, it was accidentally scrapped at Swindon Works. British Railways, embarrassed, offered the would-be owners their choice of the remaining Warships (D810/D812/D821 and D832) for the same price. D821 was chosen as it was in the best mechanical condition and thus became the first preserved ex-BR mainline diesel locomotive.
caption: D821, temporarily renamed Chris Broadhurst, at Kidderminster, Severn Valley Railway, April 2010
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