FlightGlobal.com
Home
Premium
Archive
Video
Images
Forum
Atlas
Blogs
Jobs
Shop
RSS
Email Newsletters
You are in:
Home
Aviation History
1911
1911 - 1030.PDF
than is desirable during the application of the balancer can be corrected by an application of the elevator. In the drawing attached to my patent specification the balancers are placed in such a position that no such correction would be needed, assuming that the centre of gravity of the aeroplane is situated about one-third of the width of the main plane behind the front edge of the plane, but I am not prepared to assert that this will always be found to be the most ad vantageous position for them. H. S. WlLDEBLOOD, M.I.C.E. Lucknow, India, November i, 1911. Wing Form. [14347 Can any reader give me a formula or rule for •calculating a wing of varying curve, to give the centre of pressure a fixed position irrespective of speed and angle at which the machine is flying ? This is, I believe, the principle of Weiss and Ktrich machines, and is obtained by varying the camber of the planes which sweep backwards and at their tips have a reversed camber. I thought that by this time some expert may have worked out a formula for the curve/ •as to distance from leading edge, &c, the C. of P. will move " about." I wish to replace the ordinary type Bleriot wing, if there is a possible chance of satisfactory- flight. F. A. G. N. The Coanda "Turbo-Propulseur." [^435] Could any of the readers of your valuable paper give me any information about the Coanda " Turbo-pro- pulseur," which was used by Henri Coanda on his biplane shown at the Paris Show, and by the Gregoire Company on some motor sleigfu. ? I am very anxious to obtain one of the above, new or secondhand. Were any " turbo-propulseurs ' ever tried out, if so with what results. I might sav that I wrote to the Coanda Company, but received no reply. I can assure you that I will greatly appreciate any information. 133, Front Street, New York, U.S.A, R. TIMBERLAKE. MODELS. Wire Strainers. (1436] I enclose sketches of a very small and light wire strainer for use on models made from an ordinary pin, about I in. long, which was designed by a friend of mine. The pin is first hooked i r mtK r^e* -over the wire (diagram No. 1), and then turned round until wire is sufficiently tight (diagram No. 2), and fin-dly, to secure all, the second hook is hooked over the wire (diagram No. 3). Nottingham. FRANK S. BENTLEY. " Flying Sticks" and " Freaks." [1437] After perusing a number of Mr. R. F. Mann's letters, I am in doubt as to what type of model Mr. Mann would apply the te/ms '* flying sticks" and "freaks" to, as though he obviously refers to machines built with the object of winning competitions, the facts of the case hardlv seem to bear out this statement. Take, for instance, the open competitions promoted by our leading model club, the Kite and Model Aeroplane Association, at many of which Mr. Mann has himself competed. Those at which I have been present during the past year have been won by machines designed by Mr. Bragg-Smith, Mr. Twining, Messrs. Weston-Hurlin, Ridley, myself and a gentleman whose name has slipped my memory, but who is affectionately alluded to by his friends as " Mack." These being competition winners, some portion of them at least, according to Mr. Mann, should be " freaks," but •does Mr. Mann seriously imply that any one of these machines is more of a " freak " than his own 1 If he does not so imply, it is obvious that his crusade against competition-winning «freaks" and " flying sticks" is really tilting at very mythical windmills. GEORGE ROWLANDS. [1438J Re Mr. Jones' remarks (1413) in FLIGHT, I should like to say that I have been experimenting with models for more than two years now, and am quite well aware of the fact that there are two distinct branches of model flying, and had no intention of confusing same, and had Mr. Mann borne this in mind he would not have made such an unreasonable challenge on an engined model. What I intended to infer was that while I agree that an elastic-driven model is very instructive, I am of the opinion that the constant-power model is of very much'more practical value. Through a slight error on my part or the printer's the claims of my model seem rather ridiculous. My model is driven with 2 (t*o) propellers of 8 in. dia., each provided with 4 strands o elastic. I may say that it flies best with this amount of elastic, and very often it remains aloft until all the turns are run off the elastic. In model flying I found the greatest joy and interest in economising power and minimising resistance. I have only one answer tor those who argue that a model's value as an instructive apparatus is not retarded end not made more a toy by providing it with too much power. What I say is that anything under the sun will fly regard less of its shape or form if it has sufficient power. BUITRE. "FLIGHT" ART PAPER EDITION. IN response to numerous requests, the publishers of FLIGHT have arranged to print a limited number of copies each week upon art paper, thereby enabling the high quality of the illustrations and matter to be fully appreciated. These can only be supplied by subscription, the annual charge, post free, 'being : United Kingdom, 15^. ; Abroad, 20s. Present subscribers can secure these copies by paying the difference pro rata of their unexpired subscriptions. Application should be made to the PUBLISHER, 44, ST. MARTIN'S LANE, W.C. Aeronautical Patents Published. Applied for In 1911. Published November 23rd, 1911. 344. L. BLERIOT. Aeroplanes. 5,666. A. ZSU.W£GER. Registering the course of air-craft. 5,702. D. L. A. GROSCLAUDE Dirigible bal oons. 6,750. R. ESNAULT-PELTERIE. Elastically mounting-wings of monoplane for aut jmatic stability. 10,001. M. RAABE. Automatic stabiliser. 16,137. L. C. BREGUET. Aeroplanes. 16,635. A PHILLIPPB. Dirigible balloons. PRINCIPAL CONTENTS. PAGE Editorial Comment .. .. 3014 The War Office and the British Constructor. A Study of Bird Khght By Dr. E. H. Hanidn, M.A., D.Sc 1015 The Military Aspect of Aviation 1017 British Notes of the We*k .. .. .. .. .. .. .. .. 1020 From the British Flying Grounds .. .. .. .. .. .. .. 1021 Royal Aero Club Notes .." .. .. .. .. .. 1022 Progress of Flight About the Country ;. . .. .. 1023 School Aero Club Notes 1024 The Aeronautical Society .. .. .. .. .. .. 3025 Air Eddies. By " Oiseau Bleu" . .. 1026 Foreign Aviation News .. .. , .. 1027 Model Aen -plane Regulations .. .. .. .. .. .. .. 1028 The First Aerocar .. .. .. .. .. .. .. .. .. 1029 Corr. spondence.. .. .. .. .. .. .. .. 1030 FLIQnT. 44. ST. MARTIN'S LANE, LONDON, W.C. Telegraphic address: Truditur, London. Telephone: 1828 Gerrard. SUBSCRIPTION^RATES. FLIGHT will be forwarded, post free, to any part of the world at the following rates :— UNITKD KINGDOM. ABROAD. r. 3 Months, Post Free .„ 1 6 it 11 2 11 11 • • 3 . 6 d. 8 3 6 3 Months, Post Free .. 6 ,, „ 12 >. s. 2 5 11 d. 9 6 0 Cheques and Post Office Orders should be made payable to the Proprietors of FLIGHT, 44, St. Martin's Lane, W C, and crossed London and County Bank, otherwise no responsibility will be accepted. Should any difficulty be experienced in procuring FLIGHT from local newsrvendors, intending readers can obtain each issue direct from the Publishing Office, by forwarding remittance as above. IO32
Sign up to
Flight Digital Magazine
Flight Print Magazine
Airline Business Magazine
E-newsletters
RSS
Events
