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146 
SIR DONALD FORECASTS BIGGER ENGINES
Page 43
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" BELIEVE 8 h.p. per ion is a much I more realistic figure" was the comment of Sir Donald Stokes, chairman and managing director. Ley land Motor Corporation, on proposed levels of power-to-weight ratios. He was sure operators would prefer to achieve this with increased torque rather than a screaming, high-revving engine. The occasion was the annual luncheon of the central London area of the Traders Road Transport Association held on Thursday of last week. .
Later, in reply to a questioner who doubted .the wisdom of official regulations measuring performance by brake horse power rather than maximum torque. Sir Donald said he agreed completely. There was a lot of loose talk on the subject. he commented, jocularly adding: "Some engines would not pull the skin off a rice pudding--1 hope you know the ones I mean!"
Sir Donald was asked whether he thought the growth on the Continent in the operation of large rigid vehicles coupled to drawbar trailers was likely to he followed in the UK with the advent of more motorways. Unequivocally he replied: I personally think they are a positive danger and hope they do not succeed here." He thought the trend here would be towards a 401on-gross hoxyan artic.
" I believe this is going to develop very much indeed " was his view on the application of automatic or semiautomatic transmission to commercial vehicles and he instanced Canadian experience with semi-automatic transmission on 200 h.p. artics travelling at 70 m.p.h. An oil company had several vehicles fitfed with automatic transmission on order in the UK for delivery. next year.
Earlier in his address Sir Donald said we were in a period of fundamental reappraisal of vehicle design following the :intended Construction and Use Regulations, extension of motorway operation and the increasing rationali/alion with the transport industry. This would lead to a demand for bigger vehicles, more powerful engines and brakes. At the same time mileages would rise with a need for more reliability.
Because the Ministry of Transport has "quite suddenit " got tough with truck operators there had been a bunching of demands for spare parts at a time when the demands for vehicles had also increased. Nevertheless, he said, they had been able to keep availability at 95 per cent and in 12 months the position should he very much healthier than now.