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Manufacturers Keep Quiet
Page 11
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IN spite of comments which could. be 1 taken as critical of British vehicle ers i manufacturers the papers read at the m. n vehicle stability symposiu on and
control at the Institution of Mechanical o
Engineers n Tuesday (see pages 103 and 104) none of the manufacturers' representatives present came forward, in the discussions which followed the papers, to rebutt the charges. There was, in fact, surprisingly little discussion on the papers which were fairly controversial and a number of those attending left before the evening discussion period. All the contributors to the discussions congratulated the authors of the papers and in most cases enlarged on the comments made, putting forward their own viewpoints. The need for some form of standard in road surfaces was stressed and also the importance of developing anti-wheel-locking devices to prevent rear-wheel skidding. Whilst it was important, in most speakers' opinions, to reduce the susceptibility to rear-wheel locking, a point frequently put forward was that loss of vehicle control was generally due to poor driving. After the evening discussion each of the authors spoke again on the comments made. Dr. Starks, who read a paper on commercial vehicle accidents, added to his previous comments by saying that evidence existed :to show that commercial vehicles had very low braking efficiencies compared with cars. There was a big difference between the good and the bad and this was due to " the care that some manufacturers gave to brake design ". It had been found that with some vehicles it was possible to obtain a large improvement in braking pdbformance by carrying out relatively minor alterations. Dr. Starks said that-it might be that the design or testing of commercialvehicle did not receive the same attention that was given to cars. He criticized the delay existing in some braking systems, primarily on air brakes of heavier vehicles, and said that it was a serious position, which called for more attention to com
mercial vehicle brakes., A.J.W.