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Aviation History
1916
1916 - 0021.PDF
JANUARY 6, 1916. l/liGHT AEROPLANE RADIATORS. WHEN a water-cooled engine is employed in an aeroplane not the least important item that occupies a good deal of attention on the part of the designer is the radiator. This has not only to be light, and withal strong enough to withstand vibration, but it must offer as little head resistance as possible. This depends a great deal upon the efficiency of the radiator, for naturally the more efficient the design, the smaller it can be made for the horse-power required. Messrs. Motor Radiators, Ltd., of 80, Faroe Road, Blythe Road, Hammersmith, who are the manufacturers of film and honeycomb and mounted in the top and bottom tanks so that all the tubes form water-tight communications from top to bottom—the tubes being, of course, vertical. The hexagonal ends allow of sufficient space being left between the tubes to enable the air to circulate freely round them and thus cool the water within, while owing to the shape of the tubes the resistance to the air is reduced to a minimum. These radiators can be manufactured in a variety of shapes, according to the requirements and design of the macnine, and for Some of the various radiator patterns, and method of con struction, by Messrs. Motor Radiators, Ltd. type radiators used on many of the well-known makes of motor vehicles, have evolved a design of a radiator which it is claimed is specially suitable for use on aeroplanes. This radiator is built up very much on the principle of the usual type of honeycomb radiator, but differs from the latter in that whereas in the usual arrangement the water circulates round, and the air through the tubes, in the new design the action is reversed, the water being inside the tubes and the air outside. As may be seen in the accompanying sketch, the radiator is composed of a number of thin, streamline tubes stacked together in rows. At the ends of each tube are ferrules of hexagonal section which fit close against the adjacent ones as shown. These are soldered together arrangement either at the front or the side of the fuselage, or in any other convenient position on the machine. A few of the different shapes are shown in the illustration, one of which, it should be noted, is of the unit system on somewhat similar lines to the German Hazet radiator described in last week's issue. More or less of these units are employed according to the horse-power of the engine installed. Motor Radiators, Ltd., also have a special department for carry ing out repairs to radiators, with respect to which it may be re marked that it appears to matter not in the slightest how badly damaged a radiator may be—it will be returned as good as ® ® ® ® As Seen from Above, in the Land of the Huns. — The Volkerschlacht Memorial at Leipzig. * 21
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