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Aviation History
1924
1924 - 0242.PDF
I&3S APRIL 24, 1924 IMPORTS AND EXPORTS, 1923-1924. AEROPLANES, airships, balloons and parts thereof (not shown separately before 1910). For 1910 and 1911 figures see "FLIGHT" for January 25, 1912; for 1912 and 1913, see "FLIGHT" for January 17, 1914; for 1914, see "FLIGHT" for January 15, 1915 ; for 1915, see " FLIGHT " for January 13, 1916; for 1916, see "FLIGHT" for January 11, 1917; for 1917, see " FLIGHT " for Januarv 24, 1918 ; for 1918, see "FLIGHT" for.January 16, 1919"; for 1919, see "FLIGHT" for January 22, 1920 ; for 1920, see " FLIGHT " for January 13, 1921 ; for 1921, see " FLIGHT " for January 19, 1922 ; for 1922 see " FLIGHT " for January 18, 1923 ; and for 1923, see *' FLIGHT " for January 17, 1924. Imports. Exports. Re-Exports. 1923. 1924. 1923. 1924. 1923. 1924. £ £ £ £ £ £ Jan. .. 466 2,213 60,079 52,239 280 2,219 Feb. .. 641 920 120,236 26,349 3,040 335 Mar... 589 11,381 71,945 34,113 689 509 1,696 14,514 252,260 112,701 4,009 3,063 SOCIETY OF MODEL AERONAUTICAL ENGINEERS Research Competition for Self-righting Model Aeroplanes THIS competition is only open to members of the S.M.A.E. or of affiliated clubs. Three prizes are offered—1st, £2 2s. ; 2nd, £1 Is. ; 3rd, 10s. 6d. Rule 1.—Competitor's models must be fusilage gliders designed similar to possible full-sized tractor aeroplanes. Rule 2.—Models should weigh exactly 4 ozs. and have a loading of 4 ozs. per sq. ft. of supporting surface. Any slight deviation from these weights will dnly be permitted at the discretion of the judges. Rule 3.—Models must first be glided from the position chosen for dropping, the judges to decide whether the models are in correct flying trim, a sine qud non. Rule 4.—Any purely automatic self-righting "device may be employed which, in the opinion of the judges, will be applicable to full-sized machines. Any such device to be in operation during the trial glide. Rule 5.—The models in the actual test will be released vertically downwards from a height of between 20 and 30 ft. by a mechanical device manipulated by the competitor or by any other person appointed by the judges. The winning model to be the one which, in the opinion of the judges, recovers flying equilibrium in the least vertical distance without stalling afterwards. The competition to be held on one Saturday in September, the exact date and place to be arranged later. Country members are invited to send their models to the Secretary of the Research Committee, who undertakes to see them put through the test properly. W. E. EVANS, Hon. Sec. Research Committee SIDE-WINDS THE Marconi stand at Wembley, which is situated in Avenue 11, Bays 9-11, in the Electrical Engineering Section "of the Palace of Engineering, contains a great variety of exhibits representing the latest developments and appliances in all branches of wireless science. The stand is shared by Marconi's Wireless Telegraph Co., Ltd., the Marconi Inter national Marine Communication Co., Ltd., the Marconiphone Co., Ltd., and the Marconi Scientific Instrument Co., Ltd. The most prominent feature of the stand is the model of a wireless beam transmitter which, as it revolves, sends out a certain Morse letter for every two points of the compass. These signals are picked up by a special receiving apparatus, independent of the ship's ordinary W/T installation, which does not require any skilled operation. By taking a suc cession of readings at intervals the ship's course can accurately be charted. Three types of aircraft transmitters and receivers, as fitted to the aeroplanes operating the principal air routes, are also included amongst the exhibit^. IT may be of interest to note in connection with the world flights that all machines, both British and American, are provided with " Tabloid " first-aid equipments supplied by Burroughs Welcome and Co. A FULL range of B.T.H. aircraft magnetos—for 8, 9, 12 and 14-cylinder engines—are included in the extensive exhibit of the British Thomson-Houston Co., Ltd. (Rugby), at the Wembley Exhibition, in the Palace of Engineering. Rolls-Royce, Ltd. PRESIDING over the seventeenth annual meeting of Rolls-Royce, Ltd. (a summary of the directors' report was published in FLIGHT for April 3 last), Lord Wargrave stated that orders received and in prospect for aero engines and aero-engine parts promised |o show a bigger turnover than last year. The Condor engines, 650 h.p., had passed the Air Ministry's airworthy test, and these engines were already being made for the British Air Service. This was another instance of Mr. F. Henry Royce's genius, and the excellent work of his technical assistants and experimental and works staff and the men who carried out his ideas. In addition to orders from His Majesty's Government, the company's foreign aero business continued to expand, and they were at present carrying out important contracts for the Dominions, foreign governments, and for transport companies at home and abroad. These orders might be attributed to the world-famed reliability of Rolls-Royce aero engines which had been successfully used in many long-distance flights, m m m m PUBLICATIONS RECEIVED International Air Congress Report. London, 1923. Inter- national Air Congress, 7, Albemarle Street, London, W. 1. ' Misu Zinynas. Vol. VI. No. 16. Karo Mokslo Skyrius, Kaunas. Aeronautical Research Committee, Reports and Memoranda. No. 886 (Ae. 117).—Further Experiments on Tandem Aero foils. By W. L. le Page. May, 1923. London: H.M. Stationery Office, Kingsway, W.C. Price Is. net. Technical Notes : No. 168.—Experiments with Fabrics for Covering Airplane wings. By A. Proll. December, 1923. No. 169.—Air Resistance Measurements on Actual Airplane Parts. By C. Wjeselsberger. November, 1923. No. 170.— Reduction in Efficiency of Propellers Due to Slipstream. By Max M. Munk. December, 1923. No. 171.—Compressive Strength of Tapered Airplane Struts. By V. Lewe. Decem ber, 1923. No. 172.—The Nichols Wing-Cutting Equipment. By J. B. Ford. December, 1923.—No. 173.—Significance of the Expression CL3 CV. January, 1924. No. 174.— Airplanes in Horizontal Curvilinear Flight. By H. Kann. January, 1924. No. 175.—Tests on a Model of the D Airplane T 39 of Deutsche Flugzeug Werke. By W. Molthan. January, 1924. No. 176.—Curvilinear Flight of Airplanes. By E. Salkowski. January, 1924. No. 177.—Note on the Relative Effect of the Dihedral and the Sweep Back of Airplane Wings. By Max M. Munk. January, 1924. No. 178.—Triplane Tests. By W. Wieselsberger. February, 1924. No. 179.—Practical Method for Balancing Airplane Moments. By H. Hamburger. February, 1924. U.S. National Advisory Committee for Aeronautics, Washington, D.C., U.S.A. K m m m AERONAUTICAL PATENT SPECIFICATIONS A bbreviations : cyl. = cylinder j I.C. = internal combustion j m. -• motor The numbers in brackets are those under which the Specifications will be printed and abridged, etc. APPLIED FOR IN 1922 Published April 17, 1924 24,956. SIR E. H. T. D'EYNCOURT and others. Aircraft-carrying vessels. (212,951.) 25,055. J. A. HUGHES. Aircraft wings. (212,952.) 34,838. LORD INVERNAIRN (W. BEARDMORE) and A. E. L. CHORLTON. Support ing planes for flying-machines. (212,993.) APPLIED FOR IN 1923 Published April 10, 1924, 9,814. DORNIER METALLBAUTEN GES. and C. DORNIER. Flying-machines. (196,281.) 2fl,957. Soc. ANON, DES ATELIERS D'AVIATION L. BREGUET. Means for supplying combustible mixture to I.C. engines. (203,318.) Published April 17, 1924 6,078. H. L. PENFOLD. Petrol tanks for aircraft. (213,092.) 8,057. J. W. GILLIE and F. H. ALEXANDER. Clinometers. (213,111.) 22,150. FAIREY AVIATION CO., LTD., and C. R. FAIREV. Shock-absorbing apparatus. (213,191.) The Aircraft Engineer and Airships 36, GREAT QUEEN STREET, KINGSWAY, W.C. 2. Telegraphic address : Truditur, Westcent, London. Telephone : Gerrard 1828. SUBSCRIPTION RATES - ' FLIGHT " will be forwarded, post free, at the following rates . UNITED KINGDOM s. d. 3 Months, Post Free .. 7 7 6 „ „ ..15 2 12 „ „ ..30 4 ABROAD* s. 3 Months, Post Free.. 8 6 n „ ..16 12 „ ,. ..33 — d. 3 6 0 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 242
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