5991569 GWR, "The Cheltenham Flyer" Engine 5006 "Tregenna Castle" (colour litho) by Micklewright, G.P. (1893-1951); Private Collection; (add.info.: GWR, "The Cheltenham Flyer" Engine 5006 "Tregenna Castle." This train created a world record for steam railway by travelling from Swindon to Paddington at an average speed of 84 miles an hour, whilst the maximum speed on this run was 91.4 miles per hour. Illustration for Railroads with full page colour illustrations by G P Micklewright (1945).); 穢 Look and Learn.