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Aviation History
1925
1925 - 0817.PDF
Flight, December 17, 1925 AfRC&AFTENGINEER- First Aero Weekly in the World Founder and Editor i STANLEY SPOONER A Journtl devoted to the Interests, Pr»etie«, aid Progress of Aerial Locomotion ftnd Transport OFFICIAL ORGAN OF THE ROYAL AERO CLUB OF THE UNITED KINGDOM No. 886. (No. 51, Vol. XVII.) DECEMBER 17, 1925 rWeekly, Prlca «d.L Post free, 7d. , The Aircraft Engineer and Airships Editorial Offices: 36, GREAT QUEEN STREET, KINGSWAY, W.C.2.Telegrams: Truditur, Westcent, London. Telephone: Gerrard 1828. Annual Subscription Rates, Post Free : United Kingdom .. 30s. 4d. Abroad .. .. 33s. 0d* These rates are subject to any alteration found necessary under abnormal conditions and to increases in postage rates. * Foreign subscriptions must be remitted in British currency. CONTENTS Editorial Comment PACE All-Metal Aeroplanes 817 A New Westlaud Machine 9 Light'Plane and Glider Notes 820 Light'Plane Clubs Doings 1 All-Metal Flying-Boat Hulls 3 Personals 82.S Air Surveying in Burma 826 The Rickenbacker Commercial Aero Engine 828 The Late E. T. Busk 9 In Parliament 83(1 Royal Air Force 831 R.A.F. Intelligence 8H1 Correspondence S32 Aero Golfing Society 832 Imports and Exports 2 DIARY OF FORTHCOMING EVENTS Club Secretaries and others desirous of announcing the dates of important fixtures are invited to send particulars for inclusion in the following list :•— 1926 Jan. 12 Jan.13 Jan. 26 Feb. 9 Feb. 25 Mar. 9 April 13 April 21 Mr. C. Howarth. " Some Aspects o£ Full- Scale Experiments," before Inst.Ae.E. London Aeroplane Ciub Inaugural Dance, Suffolk Galleries, Suffolk St. W.I. Lieut. Olechnovitch. "The Care and Main- tenance of Tools as an Important Factor in Workshop Routine," before Inst.Ae.E. Informal Meeting, Inst.Ae.E. Mr. A. 3. Cobham. " Long-Distance Aero- plane Flights," before R.Ae.S. Mr. 0. E. Simmonds, M.A., A.F.R.Ae.S., M.I.Ae.S. "The Development of CivilMarine Aircraft," before Inst.Ae.E. Mr. S. H. Evans, B.Sc. " The Performance of Modern Aircraft—with special reference to the Variable Wing," before Inst.Ae.E. Inst. Ae.E. visit to Messrs. D. Napier and Son, Acton. EDITORIAL COMMENT. HE subject of all-metal aeroplane construction is very much to the fore at the moment. A paper on this subject by M. E. Dewoitine, the famous French aeroplane designer, was read before the Institution of Aeronautical Engineers on Tuesday of this week, in which the author, who was, unfortu- nately detained in Italy on urgent business and was thus unable to read his paper in person—outlined the All M t history of all-metal construction as it Aeroplanes nas developed in France during the last ten years or so. Space does not permit of publication of the paper this week, but we hope to give a fairly lengthy resume of it in a subsequent issue of FLIGHT. In the meantime, it may be stated that one very strong reason for the pronounced preference which French aircraft designers show for Duralumin is due to the fundamental question of supplies. France has not the high-grade steels used in modern British all-metal aircraft, but the supply of aluminium and its alloys is plentiful in France, and it was there- fore very natural that French designers should turn their attention to this material. In his paper M. Pewoitine did not, perhaps, stress this point, dealing rather with the choice of material from structural considerations. Thus, he mentioned that in a Nieuport machine exhibited at the last Paris Aero Show the spars were in the form of Duralumin beams, and he expressed the opinion that this choice, by a firm who have always been staunch supporters of wood construction, might be accounted for by the fact that, in the particular machine referred to, wood spars would not have provided the necessary strength. In this country, on the other hand, Duralumin has been officially banned for use in highly stressed parts, and, as a result, British designers who wvre faced with the problem of developing all-metal construc- tion, had of necessity to turn their attention to steel. While thus France has successfully developed Duralu- min construction to a very considerable extent, Great Britain has concentrated on steel construction, and, B 2
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