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Passing Comments
Page 68
Page 69
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ONE would have thought that the first thing to be considered in running a haulage business would be the keeping of accurate costs, but, in practice, this is often the last matter to receive attention. In a recent instance a haulier who was being examined in bankruptcy, and who, staffing in 1925, had owned 12 lorries, stated that he had never attempted to ascertain his running costs.
WARWICKSHIRE appears to have a particular
animus against the motorist. There are 27 motor prosecutions per constable per annum in this county against 11 in the area said to be the next highest on the list in this respect, and yet the county benefits to a very considerable extent from its motor factories. Another example of trying to kill the goose that lays the golden eggs. PRACTICAL tests with tar concrete have shown that, if laid properly, this material is capable of standing very heavy traffic conditions. If further developments occur in this direction they will constitute a considerable help to British coal and stone.
THE flying schools are now accepting quite a num ber of pupils who are engaged in the road-transport industry. One of the prominent schools now has several road-transport men learning to fly, and states that the interest can be definitely traced to the Air Transport supplements in The Commercial Motor.
AT the M.T.T.A. Conference at Blackpool, a resolu tion was passed to the effect that the Government should be asked to defer for three years the extra taxation on gas-driven vehicles. It wag the view of the council that oil-driven vehicles were already established, so that no special plea need be made on their behalf.
TO-MORROW the tramways of the London County Council will De transferred to the London Passenger Transport Board. Whether this will extend or shorten their life is a problem which is engaging many minds.' It looks very much, however-, as if the Board is acquiring a doubtful asset which will have a constantly diminishing value. The system to-day covers 167 miles of route, 123 with conduit and 44 with overhead wiring. There are also through-running facilities on 92 miles of line. The staff numbers 13,000 and the wages bill is 12,500,000 per annum. The system carries some 700,000,000 passengers a year. THE appalling handicap of taxation is manifested by a statement made by Mr. W. S.Vreathall, the chairman of Ribble Motor Services, Ltd., at the concern's recent annual general meeting. For the year under review, he said, /200,000 had been paid in taxation of one sort or another—a sum equivalent to 25 per cent, of the entire share capital.
AMONGST the new apparatus shown to visitors last Tuesday at the annual inspection of the National Physical Laboratory were two new wind tunnels giving a wind speed of 140 m.p.h. against the previous maximum of 75 m.p.h. Each tunnel will take a model of 6 ft. span.
A DEVELOPMENT of these is the compressed-air tunnel, where a wind speed of about 60 m.p.h. is attained at 25 atmospheres pressure. This wind, blowing upon a model of 1-10 scale, simulates the conditions of a machine flying at 150 m.p.h. This tunnel is 50 ft. long, 17 ft. in diameter, built of 21-in. steel and weighs 310 tons. Each end casting withstands a pressure of 5,000 tons.
THE buffeting of aeroplane tails is a phenomenon not generally understood, and can be simply explained by saying that, under certain conditions, a wing sheds a succession of eddies at fairly regular intervals, and these may strike the tail plane if it occupies an unfavourable position in relation to the wings. Severe tail vibration may result, especially if it be forced into sympathetic vibration. It has been shown that if the wings be badly faired into the body, the tail shaking is considerably increased in normal flight.