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Aviation History
1926
1926 - 0068.PDF
ROYAL AERONAUTICAL SOCIETY Lecture.—On February 4, at 7 p.m., an important Joint Meeting with the Institu- tion of Automobile Engineers will be held at the Royal Society of Arts, 18, John Street, Ade'lphi, W.C.'2. At this meeting, the third lecture of the second half of the Sixty-First Session, Mr. Charles L. Law- rance, Vice-President and General Manager of the Wright Aeronautical Corporation, will read a paper on " American Aircraft Engine Development." Mr. Lawrance is paying a special visit to this country in connection with the paper, and his lecture, in view of the recent advance in American engine design, will prove highly informative. Light refreshments will be served at 6.30 p.m. New Branches.—A number of new branches of the Society are already in process of formation, following on the result of the Special General Meeting of the Society held on December 30, 1925. The membership of the first of these new branches to be formed, at Coventry, already exceeds 100. New Grade.—The forms of application to the new technical grade of the Society, Associateship. are now ready. This grade is open to anyone employed in a technical capacity in the manufacture or operation of aircraft who have in the opinion of the Council sufficient qualifications to warrant their election. Full particulars of the rules governing the new grade, and the privileges, may be obtained from the Honorary Secretary. J. LAURENCE PRITCHARD, Honorary Secretary. X X K * CORRESPONDENCE PROPOSED AMATEUR AIRSHIP CLUB F2115] In view of the Government's drastic action by economising at the expense of practical airship research, may I suggest that the scheme recently put forward by Commander Boothby should receive more than passing comment in your valuable columns. It is essential that our airship personnel should not be allowed to become "stagnant." The formation of an Amateur Airship Club on practical lines would, to a small extent, provide a means of overcoming this stagnation, and, further, what in the writer's mind is of more importance, it would encourage the modern youth to take an active interest in the development and control of " lighter-than-air " machines. In conclusion, the writer is of the opinion that Commander Boothby would receive enthusiastic support from all interested in the oldest branch of aviation. H. ALEC S. GOTHARD, F.R.S.A. Bickley, Kent. January 23, 1926. m m x m R.A.F. Officers and Flying Risks IN a memorandum recently issued by the Air Ministry it states that the question of insuring against flying risks is known'to have exercised the minds of officers for some con- siderable time past and that there is reason to believe that particulars of methods by which various life offices are prepared to cover risks are not known. As a result, the Air Ministry has been in negotiation with the British Life Offices Association and has formulated two schemes, Scheme A and Scheme B. Under Scheme A, R.A.F. officers can cover the risks of flying by payment of a fixed annual extra ; this extra varies according to the rank of the officer from five guineas per cent, for pilot officers to 15s. per cent, for an Air Com- modore (no charge being made for officers above that rank), and is payable for a maximum period of five years. Under Scheme B the extra premium depends primarily upon the amount of flying done, the general charge being 9d. per flight per £100 assured, the amount of extra premium payable in any one year being determined by the production of a certified extract from the officer's log book. " Titanine " Lacquers DURING the last few years Titanine-Emaillite, Ltd.—-the makers of the famous aeroplane dopes bearing these names— have conducted exhaustive research work in the production of ihigh-class lacquers, suitable not only for the motor-car trade but for aircraft metal parts. We understand that this work has given highly successful results and that the firm is now in a position to supply lacquers of all types, for which they claim the same pre-eminence that " Titanine " has achieved. They will be pleased to give any of our readers who may be interested full particulars regarding these lacquers. JANUARY 28, 1926 PUBLICATIONS RECEIVED Technical Notes : No. 228.—The Flettner Rotor Ship in the Light of the Kutta-Joukowski Theory and of Experimental Results. By F. Rizzo. October, 1925. No. 229.—An Altitude Chamber for the Study and Calibration of Aero- nautical Instruments. By H. J. E. Reid and O. E. Kirchner. November, 1925. U.S. National Advisory Committee for Aeronautics, Washington, D.C., U.S.A. International Meteorological Organisation : Report of the Meetmg in London, April 16-22, 1925, of the Commission for the Exploration of the Upper Air. Air Ministry, Meteorological Office. M.O.281. H.M. Stationery Office, Kingsway, London, W.C. 2. Price 25. net. Aeronautical Research Committee, Reports and Memoranda.— No. 980 Ae. 193.).—The Rolling and Yawing Moments of an Aerofoil in Straight Flight. By H. Glauert, M.A. July, 1925. H.M. Stationery Office, Kingsway, London, W.C. 2. Price 3d. net. No. 4 Apprentices Wing Magazine. Vol. IV, No. III. Christmas, 1925. The Boys' Wing Magazine, R.A.F., Cran- well, Lines. The Official Gazette of the United States Patent Office. December 15, 1925. Vol. 341, No. 3. United States Patent Office, Washington, D.C., U.S.A. The Canadian Patent Office Record. Vol. L1II. Nos. 49 awe? 50. December 8 and 15, 1925. Canadian Patent Office, Ottawa, Canada. Price 25 cents each. La Gxterra y su Prcparacicm. November, 1925. Vol. X, No. 5. Estado Mayor Central del Ejercito, Madrid. Automobile Worm Gearing. David Brown and Sons (Huddeis- field) Ltd., Park Works, Lockwood, Huddersneld. Notiziario Tecnico. No. 6. December, 1925. XTfncio di Stato Maggiore della R. Aeronautica, Direzione della Rivista Aeronautica, Via Torino, 39, Rome. Official Gazette of the United States Patent Office. December 22, 1925. Vol. 341. No. 4. United States Patent Office. Washington, DC, U.S.A. L' Annuaire du Bureau des Longitudes poitr 1926. Gauthier- Villars et Cie., 55, Ouai des Grands-Augustins, Paris. Price 8fr. net. Winged Defense.—By \Ym. Mitchell. New York and London : G. P. Putnam's Sons. Price 10s. 6d. net. The Official Gazette of the United States Patent Office, December 29, 1925.—The United LStates Patent Office, Washington, D.C., U.S.A. AERONAUTICAL PATENT SPECIFICATIONS Abbreviations : Cyl. •= cylinder; i.e. •= internal combustion : m. — motor.The numbers in brackets are those under which the Specifications will be printed and abridged, etc. APPLIED FOR IN 1924Published January 28, 1926 25,443. BRISTOL AEROPLANE CO., LTD.. V>. L. GAFEF.IT art! J. HAIL. Ecdksfor vehicles. (245,229.) APPLIED FOR INI 1925Published January 28, 1926 1,149. G. W. BRYANT and F. P. BEVIS. Rotary i.e. engines, etc. (245,277.) 5,085. ENGLISH ELECTRIC CO., LTD., W. E. M. AYRES and E. H. H. HASSLER.Method of and apparatus for balancing of bodies. (245,305.) 5,215. W. DE WASMVNrvr. Valve-packing devices for revolving cylinderengines. (230,071.) 14,702. Cm ^'APPLICATIONS MECAXIQUES. Fastenings for stiock absorber(235,219.) 17,643. H. JUNKERS. Screw propellers. (237,245.) FLIGHT The Aircraft Engineer and Airships 36, GREAT QUEEN STREET, KINGSWAY, W.C.2. Telegraphic address: Traditur, Westcent, London. Telephone : Gerrard 1828. SUBSCRIPTION RATES " FLIGHT" will be forwarded, post free, at the following rates :— UNITED KINGDOM ABROAD* s. d. s. d. 3 Months, Post Free ..77 3 Months, Post Free .. 8 3 6 „ „ ..15 2 6 ,. „ ..16 6 12 „ „ ..30 4 12 „ „ ..33 0 * Foreign subscriptions must be remitted in British currency. Cheques and Post Office Orders should be made payable to the Proprietors of " FLIGHT," 36, Great Queen Street, Kingsway, W.C. 2, and crossed Westminster Bank Should any difficulty be experienced in procuring " FLIGHT " from local newsvendors, intending readers can obtain each issue direct from the J'ublishing Office, by forwarding remittance as above. 56
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