I noted with interest Mr. Pyle’s letter to the Minister of Transport. The report in the Daily Telegraph, on which he based his comment, left out one important point about our demonstration, this was that the tyres, which were seen and photographed aquaplaning on the heavy vehicle, had smooth treads, the purpose of the demonstration was to show the danger of using tyres that are worn smooth.
Providing that truck tyres, of Dunlop or any other make, have a reasonable amount of pattern remaining, aquaplaning will not occur in the normal range of truck speeds. The advantage of Highway 70 over other tyres on braking distance and cornering ability was a quite separate demonstration, showing the advances in truck tyre to improve truck safety.
D. W. BADGER. Development Manager, Giant & Earthmover Tyres,Fort Dunlop. Dunlop Rubber Co. Ltd.