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Aviation History
1914
1914 - 0821.PDF
JULV 31, 1914. 1/ySHT] Edited by V. E. The Ladies' Model Competition. THE ladies' duration model competition was held on Wimbledon Common on July 25th, under very trying weather conditions, since something like half a gale was blowing during the whole of the time. In spite of this fact some very fine flights were made. The competitors •were permitted to submit models of any kind, either home-made or purchased, but the models must not be under 4 oz*. in weight. A special rising board was provided. The greatest difficulty was ex perienced, as one would naturally expect, under the circumstances, in launching the models. Once up in the air they were carried long distances by the wind, in one or two instances nearly off the Common. In spite of the high wind several of the models fought the wind for some time before turning into it, generally speaking rising to a high altitude whilst doing so. One model looped the loop in magnificent style, coming down to within about a yard of the ground at the finish and then rising again and making a very good flight. The winner was Mrs. Frances Holt, who, flying a Houlberg model, succeeded in making a very fine flight of 67 sees. Miss May Bond and Miss Doris Bond, both flying Bond models, came second and third respectively. Both succeeded in making a single flight of 50 sees., but the former's average was rather the better. Mrs. Jannaway, flying a Jannaway model, accomplished a very long flight and a duration of 35 sees. Miss Powell, flying an Easedale tractor (a fearfully difficult machine for a lady to launch), was never theless successful in obtaining a duration of no less than 34 sees. A very fine performance considering that the machine was a single- screw model, and the day was such a bad one for tractors, that a tractor competition to be held there the same afternoon was post poned in consequence. Miss Dew, flying a Birmic model, accom plished a duration of 31 sees. Taking it altogether the meeting was -quite a success, and we hope to see it repeated. The prizes, which consisted of a silver back brush, a mirror and comb in case, for the first prize ; a case of six teaspoons and tongs for the second, and a biscuit box for the third, were presented by the Women's Patriotic Aerial League. Mr. F. W. Jannaway's Olympla Weight-Lifting Model. The following is a brief description of this model, which has made a very large number of excellent flights : Length, 4 ft. ; span, 4 ft. 3 ins. ; chord, 8 ins. ; elevator, 20 ins. by 4 ins. Weight of machine 19 ozs. carrying a dead load of 5 ozs. Length of rubber motor, 3 ft. 8ins., run on a triple gear of 10strands each. Diameter •of propeller, 13 ins. Fuselage of spruce, C-shaped section, f in. by \ in. and well braced. Planes constructed of 18 gauge steel wire and braced, covered with brown jap silk and proofed. Duration at tiials 23, 28 and 5 fees, respectively. The model was slightly over-elevated in the last trial and came to the ground. One of the chief points of interest about this model is that it is one of the very few really successful models that have been evolved fitted with three equal cogs or a triple gear. It would have been most interesting to have seen what it could have accomplished if a twin gear had been substituted for the triple one. 17." An Interesting German Model. 'The following description and illustrations have been sent us by Mr. Carl Hochhaltinger, of Steyr, Germany :— JOHNSON, M.A. " Being a subscriber to your esteemed paper, I have frequently seen photographs of models, and I take the liberty to send you some photographs of a model which I have made and which works fault lessly. The model in question is an Etrich Taube ; it has a span of one metre and weighs 120 grammes. All control organs are movable, the chassis is sprung, the propeller isf a Chauviere running in ball-bearings. The machine can be dismantled to the smallest details in 3 minutes, and erected again in the same time. Apart from models of the best-known machines such as Bleriot, Farman, Grade, Curtiss, &c, I have also a model balloon to be filled with gas, and having a small electric motor, which drives the two propellers on the left and right. The weight of the balloon complete in flying order, with motor and accumulator, is 600 grammes, the length of the balloon 180 centimetres, with a major diameter of 26 centimetres." [We shall be pleased to receive a photo and some further particulars of the model balloon for publication.] Messrs. T. W. K. Clarke's Compressed Air Motored Machines and Parts. During the present year considerable progress has been made with model aeroplanes driven by compressed air, and quite a large Messrs. T. W. K. Clarke and Co.'s box of parts for com pressed air-driven model, including pump. number of experiments have been made. Many prefer such models, even if their actual flight duration be not so great as that obtained with some rubber driven machines, because the machine is driven by a real engine and not by a twi&ted skein of rubber. Apart from their uses on •mode! aeroplanes, compressed air motors can be used with even greater success to driven model hydroplanes and submarines ; for the latter both steam and petrol cannot be used, and we are compelled to resort to a rubber, spring, electric or compressed air motor. The bubbles of air rising to the surface in the case of the last-named make the model appear so much more like the real thing. Messrs. T. W. lv. Clarke and Co. have a large selection of such motors and accessories in prices ranging from a guinea upwards. Carl Hochhaltinger's Etrich Taube model 821
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