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Aviation History
1920
1920 - 0098.PDF
JANUARY 22, 1920 Si The Voisin type X " Flight " Copyngbi Si Si Si Si with 80 h.p. le Rhone engine. The fuselage is, as usual, of monocoque construction, and the two seats are placed close together in a single cockpit, the passenger sitting with a leg on each side of the pilot as in the earlier Morane-Saulnier monoplanes. This arrangement, while not, perhaps, being particularly comfortable, has the advantage of saving space, while conversation between pilot and passenger is facilitated. The 80 h.p. le Rhone engine is mounted inside an aluminium cowl, open at the front, and there is a spinner in front of the propeller boss. This leaves an opening for the air-screw between cowl and spinner, and one noticed that the spinner in this, and in the Type XXX machine, was mounted on ball-bearings. Consequently, if the spinner is not absolutely balanced, it will probably not revolve with the screw, or at any rate, not so fast as the screw, and there is, therefore, no tendency for it to burst, as has been known to happen with spinners mounted on and revolving with the propeller. As in the other Spads, the wings of the Type XXIX are characterised by a straight bottom plane and a back-swept top plane. The struts are of the same type as in the Limousine, but the bracing is in £he form of stranded cables, the lift cables being in duplicate, with a thin wood lath in between them to form a fairing. The under-carriage is of the usual Spad type. Underneath the wings of the huge Bleriot " Mammouth " was shown a small Spad single-seater sporting machine, with 45 h.p. Anzani engine. This biplane is known as the type XXX, and has a very strong family resemblance to the other Spads. There is the same back-swept top plane, the mono- coque body and the inter-plane struts. It is a very pretty and business-looking machine, as will be seen from the accompanying photograph. The spinner on this machine is somewhat smaller, probably to admit more air to the stationary engine than is required for the rotary of the Type XXIX. A two-branch exhaust collector conducts the exhaust-gases to a silencer placed some little distance aft under the fuselage, as shown in one of the accompanying sketches. As a sporting machine, the Type XXX should have a strong appeal, especially as the fuel consumption is low for the speed of the machine, and the landing speed is stated to be considerably below 40 m.p.h. Vickers, Ltd. As a result of the unfortunate accident, in which Sir John Alcock lost his life, Messrs. Vickers, Ltd., were unable to show their " Viking " flying boat with retractable land under- carriage. Some photographs of this machine were, however, exhibited on the stand, and a silhouette of the " Viking " was published on page 1,643 0I our issue ol December 25, 1919. This machine was of very unusual design, the boat having two s'teps far apart, the rear one of which carried a small tail skid, for use when the machine was used on land. Two wheels were mounted on the sides of the boat, and were so arranged that they could be raised and lowered by the pilot. This, combined land and sea under-carriage is a feature which will have to be closely studied, and one trusts that Messrs. Vickers, Ltd. will build another " Viking " incorporating this feature. In addition to a number of excellent photographs and models of various Vickers machines, there was shown on this stand the fore part of the cabin of a Vickers Vimy-Commercial, and a number of metal parts and accessories, such as magnetos. The Voisin Exhibit As we were able to announce in our issue of December 25, 1919, Gabriel Voisin did not show any new machines, his exhibits being confined to a type X pusher bomber, which looked somewhat antiquated and out of place in a peace-time aero show. The machine is of no particular interest, except from a historical point of view. An excellent scale model of an old triplane was also shown, of which we publish a photograph. Finally, in addition to a number of smaller scale models, Voisins exhibited a model of a pneumatic hangar for aircraft, about which it is difficult to form an opinion until one has seen the full-size article. Westland Aircraft Works As a result of the fog, which kept the Westland machine at Lympne for days, the Westland stand was empty when the Paris show opened. However, by making the crossing en the first day that was at all possible for flying, Captain Keep managed to get the Westland Limousine to le Bourget and hence, in the dark of night, to the Grand Palais. As soon as the machine was erected the Westland stand became a Si Si !S Si Si Si Si S> The Voisin tri- plane of 1915 : A very fine model Of this machine was shown, as illustrated in our photograph " Flight" Copyright Si Si Si Si
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