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Aviation History
1912
1912 - 0407.PDF
V. E. Johnson's steam-driven model. are all strong rubber-sprung. The large skid in front is of bamboo (doubly-sprung). The main plane is of magnalium tubing with brass sockets, single surfaced (Bragg-Smith silk). A sheet of aluminium is used in centre, and a "scoop" is used at rear of boiler to act as a guide to the flame of the lamp, which sometimes extends two or three inches beyond the propeller. So smoothly does the engine run that the model scarcely shakes at all—even with the propeller running 1,500 r.p.m. The model has been designed so as to offer but little head resistance, and should be very fast. The soaring speed (calculated) is 20 m.p.h. Total efficient lifting area about 4^ sq. ft. Total weight fully loaded, including fuel, 3.1 lbs. The main plane has steel skids as protectors at its extremities.' Tin wood used is ash, the wheels aluminium, and umbrella ribs U section have been employed in various places. The main plane is braced with no less than 16 wires and strainers, eight above and eight below, and so admits of a very nice adjustment. The elevator is so arranged that it can be knocked round without losing its angle of elevation (screw adjusted). Should the model prove successful in actual flight, more detailed particulars will be given later. The propeller and general fittings have been supplied by Me5srs. J. Bonn and Co., the silk (for surfacing the planes) by Mr. G. P. Bragg-Smith, who has for some time now made a sociality ot such. Model Club Wanted for Lewes. A. E. Hoadley 41, New Road, Lewes) writes stating that there are plenty of enthusiasts in the above districts, and that a club is badly needed there. Will those interested please communicate ' Replies in Brief. M. L. Roil 1;.—Thanks for communication and photos, which we shall be pleased to use in due course. C. IAN BURRBLL.—We think the skid and protector of your tractor model as per photos excellent, and will reproduce shottly. It is almost precisely similar to one we had devised, but the placing of the vertical chassis in fiont oj the propellers is a decided advantage. A. 1;. HOADLEY.—Consult the Model Engineer, Sept. 14th, 1911, or " Flying and Some of Its Mysteries." Query. B. F. PHISSK.Y.—What gauge of piano wire would you recommend for a plane 28 ins. by 6 ins., having six ribs ? THE KITE AND ® MODEL ® ® ® AEROPLANE OFFICIAL NOTICES. ASSOCIATION. Registration of Model Performances.—The trials fixed for Saturday, May nth, have been cancelled. These were (at the invitation of the Blackheath Aero Club) to have been held on their ground, which has been temporarily closed, and they hope that we shall decide to hold a trial on their ground when re-opened. The next trials will therefore take place on June 15th, place will be decided at council meeting this week. Kite flying competitions on Wimbledon Common, May 25th, at 3 o'clock.—Entries clo?e last post Tuesday, May 21st. The Baden-Powell Challenge Shield for best kite of the year, presented by Major B. Baden-Powell. Prizes : 1st, gold medal, and winner to hold shield for year ; 2nd, silver medal ; 3rd, bronze medal. Open to members only. Rules : 1. Competitors may submit kites of any kind or size. The kites to be raised simultaneously, at the sound of the bugle, when ordered by judges, and each kite, having a cord or wire 300 yards long. The cord or wire may be of any size or kind. 2. A bugle will announce the start and finish of the competition. 3. Competitors must be at the judges' flag at 2.30 sharp, any com petitor not present at that time will l>c disqualified. 4. The judges will measure the angle of kites when in flight. 5. Competitors must note that competition will last until a bugle sounds, and il the kite falls to the ground during that time it will be disqualified. 6. Classification will be made in the following manner:—40 marks for angle of kite, 30 marks for stability, 30 marks for collapsibility, strength and construction. Previous holders : W. Barton, 1909; A. W. Brown, 1910 and 1911. Competitions.—Arrangements have been made to have a flying day at Ilendon, at the invitation of Mr. Claude Grahamc-White, who will give two silver trophies for coni|>etitions ojien to boy scouts. Details will be issued shortly, with date, and other com petitions to be held. W. II. AKEHURST, Hon. Sec. 27, Victory Road, Wimbledon. ® ® ® ® PROGRESS OF FLIGHT ABOUT THE COUNTRY. Notes regarding Clubs must reach the Editor of FLIGHT, 44, St MODEL CLUBS. Aero-Models Assoc. (N. Branch) (Sec, MALCOLM B. ROSS 15, HIGHGATE AVENUE, N.l. ON Saturday at Finchley, H. E. Fletcher flying a model of novel construction. The propellers are ranged one above the other off a vertical A frame. Excellent straight flights were accomplished with this machine, and the stability was very noticeable. R. G. Corder's best official flight, 410 yards in 37 sees. M. B. Ross's machine did over 250 yards, and duration 33 sees. Messrs. H. T. Tosh, I- Tosh, and G. O. Partridge also flying. The latter's model covered 454 yards on the 20th at Finchley. W. G. Pidsley was testing a biplane ; propeller brackets teo weak. Open duration competition at Finchley to-day (Saturday) at 3 p.m. General meeting at 15, Highgate Avenue, N., May 8th, at 7.30 p.m., when the reorganisation of the club will be discussed. Martin's Lane, London, W.C., by first post Tuesday at latest. Baildon and District Aero Club (Hon. Sec, J. C. WHITTAKER, SUMMERSEAT, BAILDON, YORKSHIRE). THIS club has been formed in this district. All persons interested in aviation should apply to the secretary as above. A good prize has been offered for the first model (home made) to fly 250 yards, and another for the first aquaplane to rise off the water. Birmingham Aero Club (Sees., R. COBHAM, G. H. WOOD. 8, FREDERICK ROAD, EDGBASTON). MODEL REroRT.—Meeting, White Lion Fields, Fazelcy, near Tamworth, to-day (Saturday) at 3.30 p.m. Next monthly meeting, non-members invited, at Bell Inn, Phillips Street, May 6th, at 8 p.m. Results, last week's gliding competition: 1st, K. Trykle, 188 ft.; 2nd, W. Lunn, 178 ft. In regard to last week's notes, Mr. Lunn's flight of 25 sees, was 407
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