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Aviation History
1913
1913 - 1236.PDF
slight saving in cost. On our present machine we have used unbleached calico, and have proofed it, first with a coat of size and then varnish and petrol. Unfortunately, this has turned out hygroscopic, i.e., is affected very much by changes in the atmosphere. Ours is very tight in damp weather and baggy in dry. I think, therefore, that linseed oil would be a better proofing than petrol and varnish. " We are strongly of the opinion that 150 sq. It. is not nearly enough surface. Estimating the weight of an average pilot at 150 lbs., the machine would 1* loaded 1 lb. per sq. ft., without the weight of the machine. An average glider of that surface would weigh 90 lbs., so that the ultimate loading per sq. ft. would be I'6 lb. Our experience has gone to show that a lightly loaded machine is much more successful than a heavily loaded one. For example, it is quite apparent that the less surface there is the gliding speed will be much faster, and the landings, consequently, more dangerous. The ideal loading is from £ to 1 lb. per sq. ft. On our machine it is 1 lb. to the sq. ft. From some reports in FLIGHT, one gathers that it is a common mistake to build machines with insufficient surface, and for that reason the point cannot be emphasized too much. " It seems a great pity that the various gliding enthusiasts spread about the country cannot be brought into closer touch, as this would lead to the exchange of ideas, and all would benefit. As you may know, it is our intention, given sufficient backing, to build an engine- driven machine, and should this materialise the whole model club movement would invite considerably more respect."—[We are much obliged to Mr. Camm for his interesting letter, and for the valuable information contained therein, and we shall always be glad to hear further from him or from others who have experimented with full- sued gliders. We do not know, however, that we quite agree with our correspondent's final remarks—so long as the power is human muscle well and good, but an engine-driven glider scarcely, we think, comes within the scope of model work, nor can we see that it affects its status in any way.—V.E.J.] #> ® ® ® KITE AND MODEL AEROPLANE ASSOCIATION. Official Notices. British Model Records. 590 yards. 129 sees. Single screw, do Duration . H. Bedford ... 40 sees. Twin screw, riw off ground /Distance ... L.H .Slatter ... 365 .yards. (Duration ... J. E. Louch ... 3 nuns. 49 sees. Single-tractor screw, hand-/Distance ... C. C. Dutton ... 266 yard*. launched \ Duration ... J. E. Louch ... 68 sees. Do., off-ground /DUta?ce - ?• £• Dutton ... 190 yards. I Duration ... J. E. Louch ... 45 sees. Sing^serew hydro., off-|Duralion L. H. Slatter ... 3S -» Single-tractor, do., do. ... Duration ... C. C. Dutton ... 29 sees. Twin screw, do., do. ... Duration ... L. H. Slatter ... 60 sees. Official Trials.—The next official trials will take place on the ground of the 1'addington and Districts Aero Club at Sudbury, on Saturday, 22nd inst. It is hoped thai a good number of would-be record holders will endeavour to break the records, and entries should be sent in at once. Aero Show.—The sub-committee met at the Royal Aero Club, on Friday, 7th, and submitted their suggested programme, which consisted of eight classes, and it is hoped that it will be approved. Affiliation.—All clubs should now send in their applications for affiliation, as special reduced terms for stands will only be made to affiliated clubs at the Show. Also only affiliated clubs will be able to compete for the team prizes which will be offered there, and for the Inter-club Challenge Shield g' Thos. Farrow, Esq. This contest will be run on lines similar to the . Football Cup. Full details will shortly be issued. Twin screw, h^d-launchedl^" ~ jfc J^fKuIber* given by English Correction.—In the results of the tractor competition, held on Saturday, Oct. 18th, the name of the fifth man was printed as having been Mr. J. Louch, whereas it should hare read : 5th, Mr. E. Burton, of the Broadstairs Model Construction Co., with 45 marks, and Mr. Louch 6tb with 40 marks. Kite Competition.—Entries for the kite competition for the most practical use to which a kite can be put, to be held on Saturday, Nov. 29th, at Wimbledon, close on aand. 27, Victory Road, Wimbledon. W. H. AKEHURST, Hon. Sec. AFFILIATED MODEL CLUBS DIARY. CLUB reports of chief work done will be published monthly for the future. Secretaries' reports, to be included, must reach the Editor on the last Monday in each month. Aero'Models Assoc (N. Branch) (25, CHURCH CRESCENT, MUSWKLL HILL, N.). Nov. 15TH, monthly competition, speed r.o.g. 3 to 5 p.m.; 16th, practice, 10 a.m. and 3 p.m. ; 20th, indoor meeting, 8 p.m. Leytonstone and District Aero Club (64, LEYSPRING ROAD). Nov. 16TH at 10 a.m., model flying, as usual, near Sand Hills, Wanstead Flats. If wet, meet at clubroom, Nov. 20th, at 8 p.m. Instruction at club- room, subject: Planes and Elevators. Paddington and Districts (77, SWINDERBY ROAD, WEMBLEY). Nov. 15TH, flying at Sudbury, r.o.g. and hand-launched competitions. Wimbledon and District (165, HOLLAND ROAD, W.). Nov, 15TH AND I6TH, flying as usual. UNAFFILIATED CLUB. S. Eastern Model Ae.C (1, RAILWAY APPROACH, BROCKLBY). Nov. 15TH, Woolwich Common, 3.30 p.m. till dusk ; 16th, Klackheath, 7.30 to to a.m. the sehool and presented the prizes secured by pupils during the mstW In a short address Mr. Claude Gxahaine-White satd that William Kerswell, the winner'of the exhibition, was making satis factory progress, and as a further inducement to the boys, he made them the offer of another scholarship. 80 h.p. not 120 h.p. De Dion. FROM the Aircraft Co., Ltd., we learn that the De Dion encine fitted to the new Maurice Farman biplane is of 80 h.p. and not 120 h p as the De Dion Co. notified us. It seemed strange that more enhanced speeds were not attained had the motor been of the greater h.p., although, of course, it is difficult to judge entirely from this, as the elements have so much to say upon the subject. ® ® ® ® IMPORTS AND EXPORTS, 1912-13. AEROPLANES, airships, balloons, and parts thereof (not shown separately before 1910). For 1910 and 1911 figures, see FLIGHT, January 25th, 1912:— Imports. Exports. Re-Exportation. 1912. 1913- '9I2- IQi3- IOI2. 1913. £ £ £ £ £ £ January 619 12,097 2,412 4,005 — 1,510 February 3,110 17,361 36 3.447 — 69° March ... 640 20,425 950 1,924 600 1,042 April ... 4,820 15,593 72 5,524 50 1,413 May ... 7,494 S1.^1 '.35° 3,72° '54 &30 June ... 7,928 14,905 419 1,408 300 1,106 July ... 13,794 14,409 5.376 3,812 967 1,250 August... 8,559 17,993 1.342 2,805 2,040 510 September 6,575 19.409 2,885 6,263 1,626 1,470 October 6,836 21,041 3,128 3,674 605 2,163 60,375 204,534 i7,97o 36,588 6,432 11,984 ® ® ® ® NEW COMPANIES REGISTERED. Blsford Synd., Ltd., 304, High Holborn, W.C.—-Capital ^5,000, in £1 shares. Acquiring certain patents for improvements in dirigible airships and flying machines. Under agreement with P. Bischoff, E. Bischoff, F. Forderer, and F. Jobbins. First directors, F. Jobbins, W. C. E. Hagreen, and J. Whieldon. Nieuport (England), Ltd.—Capital ^4,000, in £1 shares. Acquiring an option for inventions relating to aeroplanes, hydro planes, airships, &c. ® ® ® ® Aeronautical Patents Published. Applied tor In 11112. Published November 13M, 1913. 23,744* N- A. THOMPSON. t Running gear for flying machines. 14,232. T. I 1IP.TEKL.FJ. Wings for aeroplanes. 24,330. F. W. M. KARSTEN. Motorless flying machines. Applied ror In 1918. Published November 13th, 1913. 4,191. F. WELLS. Flying machine. 8,586. JULIUS PINTSCHE AKT.-GES. Lighthouse, &c, lamps for aerial navi gation. 9,356. GES FUR NAUTISCHE INSTHUMENTE AND NEUFELDT AND KUNKE. Automatic controlling mechanism for hydro-aeroplants, &c. 10,882. DONNET AND H. LEVEQUE. Aeroplanes. 11,675. H. FABRE. Marine aeroplane. FLIGHT. 44, ST. MARTIN'S LANE, LONDON, W.C. Telegraphic address: Truditur, London. Telephone: 1828 Gerrard. SUBSCRIPTION RATES. FLIGHT wih be forwarded, post free, at the following rates:— UNITED KINGDOM. ABROAD. t. it 3 Months, Post Free 6 „ » 12 1. a. 3 9 7 6 IS o 3 Months, Post Free ... 6 » » .- 12 s. d. 5 o - 10 O - 20 O 1262 Cheques and Post Office Orders should be made' payable to the Proprietors of FLIGHT 44 St. Martin's Lane, W.C,and crossed London County and Westminster Bank, otherwise no responsibility will be accepted. T * Should any difficulty be experienced in procuring FLIGHT from local newsvendors, intending readers can obtain each issue direct from the Publishing- Office, by forwarding remittance as above
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