A. T. Goldie Gardner 1936 and 1950 he set over 100 international and local speed records throughout England, Europe and the USA. In September 1948 immediately before the announcement of Jaguar's new engine since named XK he broke the flying mile, kilometre and five-kilometre Class E records on the new motor road near Ostend. At the time it was considered remarkable that his engine was unsupercharged. The same engine was used, an experimental Jaguar 2-litre 4-cylinder modified to suit the class requirements. The new records were: mile 173.678 mph, kilometre 177.112 mph and five kilometres 170.523 mph. In 1951 at Bonneville Salt Flats, Utah,
Triumph Model H Model H was fitted with a 499 cc air-cooled four-stroke single-cylinder engine. It was also the first Triumph not to be fitted with pedals, so was a true motorcycle. Engine differences from the previous Model A included a single cam wheel with two cams replacing separate cam wheels for the inlet and exhaust valve, and new design of cylinder casting. Valve head diameter was enlarged and the valves were spaced further apart. The Model H was fitted with a Sturmey-Archer three-speed countershaft gearbox operated by a hand gear change lever. More than 30,000 Triumph Model H motorcycles had been produced