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Aviation History
1913
1913 - 1105.PDF
OCTOBER II, 1913. itei the canoe head and catamaran rear. It was not at all suc cessful as a quick riser, but as a weight carrier it was very good. There appeared to be too much dead-heat resistance to enable it to be applied to models. No. 5.—This float is, I believe, used on full-size hydro-aero planes. However, I have made it somewhat different, in that the front section is triangular, with the apex forming the keel. There was very little disturbance ; it lifted quickly, and carried a very considerable weight. (I have refrained from giving any actual data, for the reason that I have appended it in table form). No. 6.—The difference between this float and the previous one is that its section is rectangular, and the entry and trailing edges are not curved. It was by no means as good as No. 5. The rear dipped considerably, and there was a greater number of eddies formed under the trailing edge than in the previous one. Materials. square ; spruce thick ; covering, Spruce spars, TV in sheet ribs, ^'f in. goldbeater's skin Ditto ditto Ditto ditto Spruce spars, J in. square ; spruce sheet ribs, b in. thick ; varnished wood work ; same covering Spruce spars, YH in. square; spruce sheet, triangular ribs, -fa in. thick ; covering, goldbeater's skin Ditto ditto; rectangular ribs with perforations; same covering The Single Propeller Hydro. Competition. We give herewith particulars and illustrations of two of the winning machines, and also of one of Mr. Weston's models, the one not entered for the competition. Mr. L. H. Slatter's Model. Length of machine, 3 ft. 3 ins. ; span, 33 ins. ; chord, 6*25 ins. ; total area, 216 sq. ins. ; total weight, 7 ozs. ; 10 ins. diam. pro- Mr. L. H. Slatter's model. peller ; twin-geared rubber motor, eachiskein consisting of 8 strands of j\ in. strip rubber ; floats, usual Slatter type, i.e., bamboo frame- KITE AND MODEL AEROPLANE ASSOCIATION. Official Notices, Twin screw, hand -launched-! TjJfJ^tion Single screw, do Duration Twin screw, rise off ground j u^^Jion Single-tractor screw, hand- f Distance launched ... . (.Duration Do., off-ground Duration Single screw hydro., off-1Durati0n water J Single-tractor, do., do. ... Duration Twin screw, do., do. ... Duration British Model Records. R. Lucas A. F. Houlberg H. Bedford L. H. Slatter J. E. Louch C. C. Dutton J. E. Louch C. C. Dutton J. E. Louch L. H. Slatter C. C. Dutton L. H. Slatter 590 yards. 129 sees. 49 sees. 36s yards. 2 mins. 49 sees. 266 yards. 68 sees. 190 yards. 45 sees. 35 sees. 29 sees. 45 sees. "Model Engineer*' Exhibition.—The aero section of this exhibition has only attracted an entry of about 50 models. The judging for design and construction will take place on Wednesday, 15th, at 6 p.m. The results of the aero motor tests of the scale models will be announced during the evening. Flying Tests.—The flying tests will take place at the London Aerodrome, on Saturday, Oct. 25th, at 10 a.m. The hydro, tests at Welsh Harp, on same work covered with silk ; track of two leading floats, 10*50 ins. ; e.g. about 3 ins. in front of leading edge of main plane, viz , about half way between front and back floats ; the planes being the same as Mr. Slatter used on his record r.o.g. machine. Best duration in competition, 35 sees. Mr. C. C. Duttoris Tractor Model. Single-screw tractor hydro. Chief dimensions : Total length, 3 ft. 7 ins. ; total weight, 5* ozs. ; weight of rubber, I oz. ; diameter of tractor, 9 ins. ; total area of horizontal surfaces, 156*25 sq. ins. C. C. Dutton's model. Floats : Weight of three floats with cross-bar, I oz. ; breadth ot flotational base, 18 ins. Main plane, set at a positive angle, span, 30 ins., the tail being set at a slight negative angle. Gears : Twin, built of steel wire and brass tubing, weight f oz. Centre of gravity slightly in front of leading edge of main plane. Chassis, steel wire braced to main frame. Best duration in competition, 30 sees. Mr. Weston's Model. Overall length, 34 ins. ; span of main plane, 28 ins. ; chord of main plane, 5 ins. ; elevator of wire, 8 ins. by 2| ins. ; 18 s.w.g. steel wire. Main floats of cane at the leading and trailing edge, Mr. H. Weston's model. the tips of patent black wire 20 s.w.g. Fuselage, Bleriot Canard pattern, with the rubber motors running inside the frame, twin gears being used ; propeller, Wright pattern, 11 ins. diameter, 20 ins. pitch ; total weight of gear \ oz. only, complete with pro peller. The floats are of spruce, sides and tops machined out of one piece, blocked out at intervals, bottom silk covered, 8 ins. in length and 1 in. sq. vertical section ; length of back float, 6 ins. The two main floats being 7*5 ins. apart inside measurements. Complete weight of machine, 6 ozs. » & day, at 3 p.m. The Royal Aero Club have renewed the appointment of this Association for the year 1914. Also the Club has again offered a prize of £5 $s. for a competition to be held during 1914 among members and affiliated club members. Research Work.—Will any member or reader who is willing to undertake research work write the hon. sec. at once? The work will be carried out under the direction of Dr. A. P. Thurston. The winter work has already been mapped out. Competitions.—The tractor competition takes place to-day (Saturday), on Wimbledon Common, on the Plain, Wimbledon side of Windmill, at 3 p.m. Novices' Duration and Stability Competition.—This contest took place on Saturday, Oct. 4th, on Wimbledon Common, and attracted a good entry. The results were : 1st, R. Bird, Paddington Club, 95 marks ; 2nd, D. C. Chown, Wimbledon, 92 ; 3rd, F. W. Powell, Wimbledon, 89 ; 4th, W. E. Evans, Pad dington, 80; 5th, L. G. Tucker, Wimbledon, 77; 6th, F. H. Hawthorne, Leytonstone, 71. Mr. R. Bird won the £1 worth aero requisites, presented by T. W. K. Clarkeand Co., Mr. Chown and Mr. Powell winning respectively the Silver and Bronze Medal of the Association. The judges were Messrs. Akehurst and Slatter. Mrs. W. H. Akehurst presented the prizes to the winners. vodel Competition.—Welsh Harp, Hendon, Oct. 18th, at 3 o'clock. Entries close Saturday, Oct. nth. Duration and stability competition for hydro aeroplanes. Prizes : 1st, Rose Bowl; 2nd, Silver Medal of the Association ; 3rd, Bronze Medal of the Association. Tests: A. Duration of flight; B. Stability. Maximum marks, 100.—60 for test A, 40 for test B. Rules : 1. Competitors mi
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