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Aviation History
1911
1911 - 0728.PDF
1/jjGHT] [1318] This little model cost only If. to build. The planes have birch spars J by ^ and are surfaced with tissue paper. The elevator • r- - 1 ) 1 l\ i I i(! -*-' --- ^ %• *; 3fc % JF 1 1 "0 'a 1 1 i H~ 1 1 I 2'-o" ife t—-~ 1 ! -j 1 f L =. s. — 3s is a piece of wood wafer. The machine flies tail first and will cover over 100 ft. rf carefully launched by hand. Dover. E. N. JOYCE. Paper Models. [1319] After experimenting for some time with paper gliders, 1 endeavoured to make a larger model and ultimately attempted to PftopeiXoRW BRftcvsET OF I'M I Is TIN 2. feTRANDfc ELASTIC apply power, with some success. I enclose a sketch of a satisfactory design and append the following note :— The model complete weighs \ oz. Wood propeller j\ in. thick, steamed to shape. Hairpin propeller-shaft. Motive power two strands of elastic. Wings made of drawing paper. D. URQUHART. Dundee. Propeller Mounting. 1320] Replying to let ter 1098. A 10 in. pro peller should be used and 20 strands of TV in. elastic. Mount the propeller as shown in the sketch. B. S. HIRST. Oldham. Model Hydro-Aeroplane. [1321] The first successful flight of a model hydro-aeroplane was made on July 18th, 1911, from one of the Central Park Lakes in New York "by Mr. Francis Lee Herreshoff and Dr. Carleton Dederer. The model is about 30 ins. long, has two surfaces, two motor sticks and rubbers, two propellers, and it floats on three wooden boats which are attached by upright sticks. The model was wound up. placed on the water, and let go. It advanced oh the water for 4 ft. and then left the water. It sustained itself in flight until it reached a height of 15 or 20 ft., at which AUGUST 19, 1911. height it remained while flying in large circles over the land until the power gave out. The distance of the seven flights which it made was estimated by us to average between 200 and 300 ft., though the exact distance was not of primal interest to us. New York City. ® © IMPORTS AND ® C. ® EXPORTS, AEROPLANES, airships, balloons and separately before 1910). January February March... April ... May ... June ... July ... Imports. 1910. 1911. £ £ 2,516 1,196 437 3.129 7,516 11,327 6,305 2,110 846 1,707 7,961 3.225 11,608 9,822 DEDERER, M.D. 1910-11. parts thereof (not shown Exports. 1910. £ 750 2,95° 128 950 400 642 336 1911. £ 1,088 1,786 1,027 807 2,47t 2,432 2,256 Re-Exportation. 1910. 1911. £ £ 550 Nil — — 600 357 1,470 4,343 350 1,972 558 1,682 830 643 37,189 32,516 6,156 11,867 4,358 8,997 ® ® © ® PUBLICATIONS RECEIVED. The Art of Aviation. Second edition, enlarged, 1911. By R. W. A. Brewer. London: Crosby, Lockwood, and Son. Price \os. 6d. net. Catalogue. BUriot Lamps. Bleriot, Ltd., Long Acre, W.C. 0 O © ® Aeronautical Patents Published. Applied for in 1910. Published August i?th, 1911. J. HARGER. Balloon envelopes, &c, to prevent diffusion of gases. N. N. H. VERNHAM. Aeroplanes. S. WALKER. Aeroplanes, &c. Applied for in 1911. Published August 17M, 1911. 10,703. J. R. PORTER. Airships. ® ® ® ® PRINCIPAL CONTENTS. 17,460. 17.634- 28 907. Leader—A Study of Bird Flight The Deperdussin Monoplane (with scale drawings) A Study of Bird Flight. By Dr. E. H. Hankin The Uses of Aeroplanes in Australia From the British Flying Grounds .. School Aero Club Notes Progress of Flight About the Country British Notes of the Week Ae.C.F. Pilot Aviators Vedrines' Record for the Michelin Cup Foreign Aviation News Correspondence.. l'AGE 712 • 713 7l6 719 720 722 • 72 3 724 • 725 • 725 726 . 728 FLIGHT. 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 1 ates:— UNITED KINGDOM. ABROAD. 3 Months, Post Free .. 6 ,. ,, 2 ,» ,, s. d. . 1 8 • I 1 . 6 6 3 Months, Post Free .. 6 » » 12 „ s. d. 2 9 5 6 11 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 newsvendors, intending readers can obtain each issue direct from the Publishing Office, by forwarding remittance as above. 730
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