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Aviation History
1910
1910 - 0878.PDF
MODELS. PAPER MODEL BIPLANE. [842] Seeing that you encourage model makers in your valuable paper, I venture to send you a plan and elevation of a model glider made of cartridge paper, which is simple to make and also provides amusement ana instruction in watching how it behaves under varying conditions (indoors). The dimensions are given on the diagram. There is nothing but cartridge paper used in its construc tion, excepting the ailerons, which are of thin writing paper. The main planes are stiffened at the leading edge by a strip of cartridge paper, $ in. wide, to assist in keeping the camber. There are five supports between the two main planes, one at each corner and one at the centre at the rear edge. Both these supports, and the stays from main planes to elevator and tail, are made as follows : Take a strip of cartridge paper 1 in. wide of the required length, and fold it lengthways; cut along the fold for, say, f in. at each end ; in the case of the supports, splay the ends out at right angles to the rest of the strip ; these splayed out ends then to be pasted to upper side of bottom plane and lower side of top plane respectively; in the case of the stays, the elevator, tail, or main planes, >as the case PLAN "lay be, to be slipped between the split ends of the strip, which are then pasted down. The stays and supports should be both pasted inside the fold, as when double they are stronger. If desired, a liner of one thickness of cartridge paper may be inserted into the fold. Steering is effected by bending the ailerons on one side or the other, up or down, as the rudder is immovably pasted to the tail. The end supports between the main planes have a pieoe of cartridge paper pasted on to them, 2 in. by 2 in., and cut to the shape of the camber of the planes. These are to assist lateral stability. It is instructive to watch this model in a side draught, in a room. It appears to have a considerable amount of stability. The diagrams are drawn to £ scale. I was much interested in your answer to letter 605, which explains " pitch " admirably. I must confess that I have had much difficulty in realising what the pitch of a propeller was. In the diagram you give you show the propeller blade as of similar section to the plane of an* aeroplane, i.e., cambered. Has this section been tried for a propeller blade ? If not, I should think it might be worth trial. Surely there are many points of similarity in the action and effect of a propeller blade and that of the main plane of an aeroplane, save that one travels in a circular path and the other in a straight one. Apologising for taking up so much of your time. London. C. A. K. Cox. [It is correct to regard each blade of a propeller as an aeroplane specially designed to travel in a helical path. A two-bladed pro peller thus consists of two aeroplanes acting in the same field, which shows why there is a limit to the useful number of blades that a screw may possess.—ED.] ® ® ,.® ® OUR SPEED-ALARM COMPETITION. Further letters, accompanied by descriptions and drawings, for the Speed Alarm Competition are acknowledged from :— Fredk. Cullen. "D." Driver Brown. W. F. Claxton. A. D. Stacey. "B. W. M.fi Alan Curtiss. P. S. Wilkinson. J. H. Cardew. O. J. Mastrand. FLIGHT PIONEERS. Full page Portraits which have appeared in "Flight." FRAMED, this series makes an unique gallery of our flying men. Most copies can still be obtained irom the Publishers, 44, St. Martin's Lane, W.C., for \\d. each. 1909. S. F. CODY ... J. T. C MOORE BRABAZON ... THE LATE HON. C. S ROLLS FRANK MCCLEAN .. ROGER W. WALLACE MORTIMER SINGER .. LOUIS PAULHAN A. V. ROE HENRY FARMAN HIRAM S. MAXIM Sept". 18 CECIL GRACE CAPT. BERTRAM DICK- .. Nov. 6 SON... HON. ALAN BOYLE ... ,, 13 J. ARMSTRONG DREXEL Dec. 18 LANCELOT D. GIBBS... 1910. JAMES RADLEY Jan. 1 JOHN B. MOISANT ... .. TS J- w- DUNNE ,, 22|ALEC OGILVIE ,, 29' ROBERT LORAINE (MR. Feb. 12 "JONES") Mar. 12 G. A. BARNES 1910. July 9 16 13 Aug. Sept. C GRAHAME-WHITE April 30! EMILE LADOUGNE ... Oct. 17 '5 OFFICIAL RECORDS. Distance and Duration.—Olieslaegers (Belgium), at Rheims, on a Bleriot monoplane with Gnome engine: 244-309 miles in ch. 3m. 5£s. Speed.—J. Radley (Great Britain), at Lanark, on a Bleriot monoplane with Gnome engine : 1 mile in 47I sees. = 75*95 m.p.h. <• Altitude.—Wynmalen, at Mourmelon, on a Henry Farman biplane fitted with Gnome motor: 2,800metres. Aeronautical Patents Published. Applied lor in 1009 Published October xoth, 1910. VICKERS, SONS AND MAXIA, LTD., AND A. A. REMINGTON. preventing loss of weight through consumption of fuel. J. S. HOUGH. Model airships and flying machines. Applied tor in 1010. Published October 10th, 1910. F. HUTH. Flying machines. H. E. MISTIGRY. Cars on airships. Airships DIARY OF FORTHCOMING EVENTS. Foreign Events. 1910. Oct. 15-Nov. 2 Paris Aero Show. Oct. 18-30 Brussels Meeting. Oct. 22-29 American International Meeting, Belmont Park, N.Y. 19x0. Oct. 23-Nov. 1 Liege. Oct. 29 New York. Gordon-Bennett Aviation Cup. Dec. 4-18 Marseilles. PRINCIPAL CONTENTS. Advantage of High Speed Portrait: M. Alpbonse Clement .. The Paulhan Biplane Impressions of Paris Show .. Royal Aero Club Notes Progress of Flight About the Country British Notes of the Week Paris to London by Airship Failure of the Transatlantic Voyage Paris to Brussels and Back.. American Notes Foreign Notes Can We Fly Faster For Less Power ? Correspondence 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 rates:— UNITED KINGDOM. ABROAD. s. d. s. d. 2 9 5 6 3 Months, Post Free ... 1 8 3 Months, Post Free 6 „ ., .- 3 3 6 „ 12 „ „ ... 6 6 12 „ „ ... 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. 876
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