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Lightweight Tipper Saves . /128 a Year

23rd May 1947, Page 49
23rd May 1947
Page 49
Page 49, 23rd May 1947 — Lightweight Tipper Saves . /128 a Year
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Vulcan Oiler with 36-in. by8-in.Tyres,Built Within 3-ton Unladen Weight Limit and Pay Load

Increased to 6i tons

kfiOST operators of 6-ton tippers Inwould like to fit 36 in. by 8 in. tyres, and would do so if they could, at the same time, keep within the limit of

3 tons unladen weight. This has been achieved by Ford and Slater, Ltd„ Gwendolen Road, Leicesttr, in a Vulcan with a chassis weighing 2 tons, 71 cwt. The reduction in weight has been gained by the use of a light-alloy body and a certain amount of aluminium in the cab.

The machine, with standard body, oil engine and 36 in. by 8 in. tyres, would normally weigh 3 tons 12 cwt., so that there is an economy of at least 4 ton in dead weight, and an increase in payload to 64tons.

Mr. T G. Slater has made use of the figures in Table III of "The Commercial Motor" Tables of Operating Costs to indicate the potential savings resulting from this reduction in weight and in the ability to use 36 in. by 8 in. tyres, which, he said, show a great advantage as regards economy. He is comparing a petrol-engined 5-ton tipper with this Vulcan 6i-ton oilengined tipper. For the purposes of his calculation he has taken the price of a 5-tonner t £600 and the Vulcan at £1,600, and on the basis of 600 miles per week obtains for the 5-tonner a figure of 2.93d. per mile as standing charges, and for the Vulcan, 3,3d. per mile. He then works out a balance sheet of costs as follows: Mr. Slater states that it is within his experience that users having vehicles on 36 in. by 8 in. tyres can comfortably achieve 0.6d. per mile for tyre costs. On the other hand, he thinks that on a tipper, "The Commercial Motor figure of 1.57d. per mile should be increased to 1.75d., as quoted in his balance sheet.

There are advantages, ether than weight-saving, in the use of aluminium for the cab. It provides a good foundation for paint, requiring very little preparation. Moreover, as rust or corrosion does not occur, repainting is less expensive. Aluminium will not splinter like wood in case of accident, and can be straightened. If a section be damaged, a new stock section can be fitted with ease.

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