Graham Farish 371-606 Class 42'Warship' D820'Grenville' BR Green (Late Crest). British Railways' (BR) Type 4 Warship class diesel-hydraulic locomotives were introduced in 1958, built at BR's Swindon works and numbered in the series D800 to D832 and from D866 to D870, eventually becoming British Rail Class 42. They were allocated to Bristol Bath Road, Plymouth Laira, Newton Abbot and Old Oak Common. The D800s were originally intended for the Paddington-Birmingham Snow Hill route and tests proved that their extra weight and po. (c)2017 Jadlam Racing Ltd.