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Technical Pointers on
Page 40
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CHASSIS IN
IN such an impressive array of beautiful bodywork, comfortable buses and substantial goods vehicles it is easy for even discriminating operators, and onlookers generally, to miss what is really the most interesting part of the exhibits, i.e., the chassis work. It is, therefore, a good policy on the part of the SALM. and T. to encourage prominent manufacturers collectively to exhibit their chassis in a section of the building set apart for the purpose.
One naturally thinks of "progress in design" in terms of greater engine efficiency, higher power-weight ratios and still greater engine speeds. Whilst these phases of the development of the petrol engine are certainly portrayed in the varions power units shown, there are really more subtle changes in design, all of which tend towards greater refinement in running, than was apparent in the engines shown at the previous Olympia Exhibition in 1929.
Six-cylindered units are coming to the fore—for passenger vehicles they are particularly popular—whilst goods chassis, especially of the large types, are equipped with units which are as refined in operation as those of the best types of passenger vehicle. This attitude towards the general refining of all main components of the power units has been carried through the whole of the chassis, for it is apparent that clutches, gearboxes, transmission lines, brakes, etc., have all received attention from designers. The vehicles shown on the collective-exhibit stands are all better examples of commercial-vehicle-engineering practice than the equivalent machines of a year or so ago, despite the fact that in outward appearance there is little alteration.
Again, the progress of the compression-ignition engine has continued steadily since the Show of 1929, and the numerous examples of this type of unit to be seen in various parts of Olympia, besides in the section set aside for chassis,