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Aviation History
1925
1925 - 0606.PDF
1. 9 D. S. A. C. PavelyHersom 10 11 5. 5. 43 22 21 11 SOCIETY OF MODEL AERONAUTICAL ENGINEERS (London Aero-Models Association) THE competition for the " FLIGHT Cup " took place at the Sudbury flying ground on Saturday, September 12. This was a competition for an entirely new type of model, the chief condition being that the model should consist of a wing only, the motive power being enclosed in the latter (for complete rules see FLIGHT of April 9). Considering the difficulty of the competition, it was not surprising that there were only a few entrants ; nevertheless, the models were distinctly ingenious, two of them proving their qualities quite satisfactorily. The figures of these two machines are given below :-— Best Best Duration Name. Weight. Loading. Duration. x ^Loading Ozs. Sees. 48.9 25.1 Particulars of Mr. Pavely's winning model will be given in FLIGHT at a future date. Mr. B. K. Johnson was obtaining good nights with a twin-tractor model throughout the afternoon, his best flight being 3.18 sees. Saturday next, the 19th, at the Welsh Harp (3 p.m.), the society is holding hydro-aeroplane trials, and will be pleased if anyone outside the Society interested in such trials will turn up and witness the flying. A. E. JONES, Hon. Secretary CORRESPONDENCE The Editor does not hold himself responsible for opinions expressed by correspondents. The names and addresses of the writers, not necessarily for publication, must in all cases accompany letters intended for insertion in these columns. LIGHT 'PLANE CLUBS AND FLYING. [2098] I am sure that all those who are interested in the Light Aeroplane Club movement will have followed, with interest, your editorial notes in FLIGHT, of August 27, and the opinions expressed by your correspondent in the issue of September 3. The difficulties still facing the clubs are very real. The great thing seems to be that we must not forget that they are Light 'Plane Clubs, and that the real light 'plane is still awaited. A fact which is seldom mentioned is that members of the clubs are anxious to fly—that is all ; they do not desire to fly at 90 m.p.h.; the lowest speed at which it is reasonably safe to fly is sufficient. As vou have continuously emphasised, the machine must be cheap, to buy, to run, and to repair, also easy to fly. It need not be highly efficient. Once members have learnt to fly they will possibly develop a liking for more speed, when they must be expected to pay for it in increased charges to meet the added risk of damage. The average member only wishes to be able to fly cheaply. We need low landing speeds, but do we require high top speeds ? Can we not have a really cheap single-seater ? The suggestion that machines of the Caudron type might be used has much to recommend it, though one is afraid that they will have to be new. Provided that it could be readily inspected inside, a fuselage machine might be preferable, however. Each club has an associate or non-flying class of member- ship, and among these there is in most areas a good percent- age of men who have had experience of aeroplane work. The ground engineers employed, and whose work is supervised by representatives of the A.I.D., could have charge of any practical work done. One is led to hope that it will be possible to turn out machines of simple type by the clubs themselves. The objections are fully appreciated, but one feels that much of the success of the clubs depends on such things as this. It appears to be important for the clubs to tackle all prob- lems of this nature, now that the initial difficulty of providing the first machines has been overcome. Wlien they have, after a period of working, proved that their achievements warrant further encouragement, one thinks that this will be forthcoming. I am convinced that a club cannot be carried on for long if the costs are high and the number of members thereby limited. This does not appear to be the method which will achieve the objects of the Light Aeroplane Club Scheme. " AEROEN." SEPTEMBER 17, 1925 IMPORTS AND EXPORTS, 1924-1925 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 January 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 f for 1921, see " FLIGHT " for January 19, 1922 ; for 1922 see " FLIGHT " for January 18, 1923 ; for 1923, see " FLIGHT " for January 17, 1924 ; and for 1924, see " FLIGHT " for January 22, 1925. Imports. Jan. .Feb. . Mar.Apr. . May .June. July. Aug.. 1924. £ .2,213 . 920 11,381 , 373 .3,426 .1,219 .1,510 . 687 1925. i 3,546985 321 560 190 184 469 Exports. 1924. / 52,23926,349 34,11356,998 125,13887,629 179,292247,982 1925. £ 83,728 85,639 56,881 78,041 74,844 71.009 159,262 113,054 Re-Exports. 1924. 1925. £ £ 2,219 29120 9,3556,732 15,278667 870 21,727 6,255 809,740 722,458 19,012 33,213 PUBLICATIONS RECEIVED The Air Pilot Monthly Supplement. No. 10. September, 1925. Air Ministrv, Kingswav, London, W.C. 2. The Gloster. No'. 3. September- October, 1925. Gloucester- shire Aircraft Co., Ltd., Sunningend Works, Cheltenham. British Standard Schedule of Steel for Die Blocks for Drop Forging. British Engineering Standards Association. No. 224, 1925. July, 1925. Crosby, Lockwood and Son. Price Is. net ; post free, Is. Id. Moniteur Officiel du Commerce et de Vlndustrie. No. 149. September 2, 1925. Office Kational du Commerce Exterieur, 22, Avenue Victor Emmanuel III, Paris. Price 2.50 fr. Notiziario Tecnico. No. 2. August, 1925. Commissariato dell'Aeronautica. Dir. Sup. del Genio e delle Costruzioni Aeronautiche, Rome. AERONAUTICAL PATENT SPECIFICATIONS Abbreviations : Cyl. •=• cylinder i 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 1924 Published September 17, 1925 6,840. A. ROHEEACH. Floating trollys for launching and beaching sea-planes. (214,213.) 18,529. A. ROHRBACH. Apparatus for beaching seaplanes. (228,493.) 20,999. BLACKBURN AEROPLANE AND MOTOR CO., LTD., and F. A. BUMPUS.Landing gear for aircraft. (238,711.) 25,659. J. TRNKA. Driving-gear for aircraft propellers. (238,742.) 25,873. BLACKBURN AEROPLANE and MOTOR CO., LTD., F. A. BUMPUS andJ. D. RENNIE. Landing-gear for aircraft. (238,744.) 28,433. VICKERS, LTD., and W. F. BABBIDGE. Structure of i.e. en'Sjnes.(238,755.) FLIGHT The Aircraft Engineer and Airships 36, GREAT QUEEN STREET, KINGSWAY, W.C. 2. Telegraphic address : Telephone : Truditur, Westcent, London. 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. d. 3 Months, Post Free.. 8 3 6 „ „ ..16 6 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 l^al newsvendors, intending readers can obtain each issue direct from the Publishing Office, by forwarding remittance as above. 606
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