One hears a great deal about the development of the
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Freightliner netk. In view of Government policy on borne traffic have you any figures show the development of the French gourou system where complete semiers are actually carried on special railway Its?
Yes. The following figures. compiled by Novatrans, the operating company, illus the growth of piggy-back services on ch Railways: pourou Traffic
Total Traffic Traffic traffic with foreign with countries Britain (tonnes) (tonnes) (tonnes)
754.500 41,000
876.000 180,500 17.500 534.000 141.000 22.500
31 July) figures quoted represent an increase of to 14 per cent per annum for the total c and of between 25 and 35 per cent for nternational traffic. Traffic with Britain iars to be increasing even faster in spite of ur difficulties early last summer.
Kangourou technique was described M July 31 1964, since when several lopments have taken place. There is now tonne (31 tons 9 cwt) carrying capacity a rail flat, Further terminals have been led at Novara, Brussels, Dunkirk and avre.
I have heard that plywood containers are more easily repaired than the steel !Iuminium type. What is your opinion?
Plywood faced with glass-reinforced plastics is claimed to have a number of ntages over steel and aluminium. It is that temporary repair of a side-wall :ture can easily be made by unskilled
J r and that permanent repair is ively simple. Moreover, repairs can be ymed at room temperature and this may )te the necessity of removing the cargo.
is also claimed that the sides are more ult to puncture than steel or aluminium
that the material can be considerably -med under impact without damage. A -med side will readily return to its ial shape.
What is the meaning of high hysteresis as applied to tyre perfor7.e?
AThe majority of car tyres are built of high
hysteresis materials, which give an improvement in skidding resistance on a nonsmooth wet or dry surface of around 20 per cent. Hysteresis is a measure of energy loss during bound and rebound, the rebound of a high-hysteresis tyre being less than the rebound of a low-hysteresis type. If the surface is smooth, high-hysteresis tyres give little or no improvement in skidding resistance compared with other types of tyre having the same tread pattern.
We do not know of any truck tyres incorporating high-hysteresis materials.