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Aviation History
1909
1909 - 0360.PDF
JUNE 19, 1909. owing, he thought, to their perpetual state of vibration. A monoplane, however, has, of course, roughly speaking, only half the surface for a given span, and consequently it must go faster to achieve the same lift. Later on, •when the art of flying becomes a little more general and better understood, high speed will doubtless be looked upon as an advantage as it is in a motor car, but with the present difficulties in connection with rising off the ground, it needs an unusually intrepid pilot to carry out satisfactory experiments on these lines, so that although there is a distinct fascination about the neatness and clean cut of the machine as a type, its limitations in connection with slow speed tend to militate against its popularity at the present time. In France, the Bleriot and Antoinette monoplanes are also both doing good work, as our readers know, and there is every prospect of interesting developments ensuing with machines such as these; we trust that an opportunity may be found for trying the monoplane properly in England. Rising Direct. The problem of getting direct off the ground without any preliminary run is one that appears to have a stronger fascination to a large number of people than that of actual flight itself, and it is, of course, a very important matter. At Olympia the Lamplough machine was an interesting example of an attempt to solve the problem by means of mechanically-operated aeroplanes arranged to wave to and fro through the air in such a manner as to exert a direct lifting effect on the machine. What may be the ultimate nature of the solution of the lifting problem is by no means certain at the present time, but it has been suggested that even the ordinary biplane might be made to lift itself straight up into the air solely as the result of the induced draught from its propellers, if the draught were created at sufficient velocity and in such a manner as to affect an adequate area. Table of Reference Letters on the Sketches of Aeroplane Types. A A1B 8 Main-planes. Tail.Elevator. Rudder.Stability-planes. E F V •-.•"•••; G HK Engine. Pilot's seat. Propeller ;::.;..,:.:_-,.. _: Keel. Lifting-planes Gold Medal ior British Inventors. WITH a view to encouraging British invention, the Aerial League are offering a gold medal for the most promising model of an airship or aeroplane by a British subject exhibited at the Travel Exhibition at Olympia. £5,000 in a Week. ALTHOUGH it was only founded on Monday week, the Aerial League of Gotha, in Germany, has collected ^5,000 in a week towards the cost of a dock for airships which it is proposed to construct near Gotha. u.-- •... Photo by Dr. IV. /. S. Lachyer. Putney railway and road bridges, viewed from the " Corona" balloon on June 29th, 1908, at an altitude of 1,550 ft. 362 j
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