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Aviation History
1913
1913 - 0024.PDF
\f\ML l*vel , neo*^iv angle of incidence $\ win w Downward di he d f al, <* n epa h ue anole o( incidence at" Uino hps Opu^rd dihedrei angle of incidence <* increased al" (uino hps. %* •jtfggL- ® ® KITE AND MODEL AEROPLANE ASSOCIATION. Official Notices. British Model Records. „ . , , . (Distance ... A. E. Woollard ... 477yards. Hand-launched ... £ Duration ... A. F. Houlberg ... 89 sees. _- . (Distance ... G.Rowlands 232 yards. Off ground iDuration ... A. F. Houlberg ... 51 sees. Hydro, off water ... Duration ... G. P. Bragg-Smith ... 25 sees. Single-tractor screw, (Distance ... H.R.Weston ... 84 yards. hand-launched ...I Duration ... F. W. Jannaway ... 22 sees. Affilialion.—The Bristol and West of England Aero Club (Model Section) have applied for affiliation. Other clubs that are not yet affiliated should send in their applications at once, so that their members can avail themselves of the privileges, which are, viz.: 1. Half entry fee to all competitions ; 2. Reduced fees for registration of model performances; 3. Attend all meetings of the Association : 4. Take part in discussions; 5- Introduce^ guests to the Asso ciation's meetings and discussions other than those of a business character. The affiliation fee is only TOX. 6d. per annum. OJicial Observers.—The council will be pleased to consider applications for the appointment of official observers for districts outside the London district. Any such applications should be forwarded to the hon. secretary, giving the necessary information as to qualifications, &c. Any club applying should state if the club has an anemometer and the necessary appliances and instruments for use in official trials. Notice to Member.-.—All members are reminded that their subscriptions for the ensuing year should be forwarded to the hon. secretary, as all those who intend exhibiting at Olympia must note that the - must be paid when their application forms are sent in so that they can obtain the special advantage of reduced fees for exhibiting. Application forms will be forwarded to any reader wishing to become a member, on application. Official Trials.—All applications for entering these trials on the Aero Models (Northern Branch) ground, at East Finchley, on Saturday, January nth, should be forwarded to the hon. sec. at once. It is hoped that some of the record holders will attempt to beat the existing ones. 27, Victory Road, Wimbledon, S.W. W. H. AKEHURST, Hon. Sec. ® ® ® ® MODEL CLUB DIARY AND REPORTS. 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) (15, HIGHGATE AVENUE, N.). JANUARY IITH, K. and M.A.A. trials for records, at Finchley, 2.30 p.m. The club has decided to take a stand for exhibits at the Olympia Show in February. All intending competitors are asked to advise the secretary, and a start should now be made with all the show machines. As the number of machines to be exhibited is limited to eight, there will, if necessity arises, be a judging of the models, and certain of them eliminated. Full particulars for exhibiting can be obtained, upon application, from the secretary. Monthly Retort.—November 30th, several members out with tractors at Finchley, Mr. Weston and Mr. Hindsley both proving the air-worthiness of their machines in the high wind. Messrs. Fletcher, Ross, Jones and Brown were also making flights, but with 0-1-1-21' types, the best duration being accomplished by Fletcher, with 53 sees. Other members flying, but with indifferent success. December 7th test flights, &c., were made prior to the K. and M.A.A.'s trials for the 14th. Mr. Fairy was present, and according to the behaviour of his machine there was apparently a bad down-wind which allowed of no altitude being obtained. However, he got in some good straights of some 300 yards. Mr. Hindsley was out with his now very antique, but, nevertheless, very capable, tractor, and made several flights of too yards and more, despite the wind. Mr. Fletcher, owing, no doubt, to propeller trouble, experienced considerable difficulty with his new tractor. Mr. Jones' Enfield machine, with which he did so well, was making some rather nice flights, but were always low. December 14th, the day for the K. and M.A.A.'s trials, brought along a wind averaging 46 m.p.h., JANUARY 4, 1913. Each glider was launched four times in each test, to ensure proper observation, and the superiority of No. 4 glider over the rest was most marked. The real instigation of these experiments occurred while seeking to design a machine of a combination of well-known stable wing forms. Such a machine is No. 2 glider, and it is a singular case of how such a combination may prove useless. On a banking move ment taking place, it will be found that the downward pressure caused by the negative angle of incidence at the wing tips are increased by the dihedral on the lowest wing, the opposite effect to that required of a ctable machine. It was on this reasoning that No. 3 glider with reversed dihedral was designed, since, as the machine banks, the negative pressure of the highest wing is increased, producing the desired downward thrust. This machine, however, suffers from an overturning inclination during a side pressure during a wind gust, side-slip, or steep banked turning. No. 4 glider, being the complete reverse of 3 in having upward dihedral and the angle of incidence greater at the wing tips than the centre portion of the main plane, gives a greater righting movement than if the incidence were the same all along the plane. My next experiments will be to add to the last type of glider anything that shall be found best to prevent the nose-diving after a very steep bank, without inter fering with its present good stability, prior to building large propelled models of its type. ® ® so that, after consideration, the two observers, Mr. Akehurst and Mr. Fairy, declared them void, and arranged to postpone them till January on the same ground. Mr. Weston managed to get his twin-propelled biplane well away twice, thus providing some rather spectacular flying. December 21st, at Finchley, there was a very good crowd of members, but the best flying of the afternoon was undoubtedly provided by Mr. Hindsley with his tractor mono. This machine frequently covered the greater part of the distance across the ground, with durations varying from 25 to 35 sees. Mr. Hindsley had re-surfaced the main plane (which is double-surfaced), and the success which he obtained was very likely due to this. Messrs. H. E. Fletcher, B. Brown, E. R. Jones, and G. O. Partridge were giving very creditable performances with their various machines. Colwyn Bay Model Aero Club (3, HILLSIDE RD., COLWYN BAY). THE committee on the 23rd inst. accepted the resignation of the joint-sees., Messrs. Bradley and Hall, Mr. Smethurst being elected in their place. Monthly Report.—Qahe an interested crowd witnessed a meeting held on the promenade on Boxing Day. F. Jackson, 1-1-P1-0 r.o.g., obtained good short flights. D. Allen, 1-1- P1-0 r.o.g., flying low. Although too windy for hand- launched machines, J. Smethurst put in good flight with his 1-1-P2-0. All communications to be addressed to " Secretary," 3, Hillside Road, Colwyn Bay. Croydon and District Aero Club (Sec, 136A, HIGH STREET). Monthly Report.—Although the weather has not been favourable during December, a fair amount of flying has been done. A notable performance was a flight by Mr. D. Pavely's tractor monoplane, built up fuselage, of 115 yards. This model flies with its tail " well up " and is very stable. Other tractor models have been made by Messrs. Bell, Thumwood, Mullins, Carter and Hart, and fair results have been obtained. Mr. Hart's large r.o.g. monoplane has also performed well, but owing to a slight warp on the planes, flies in circles. However, this has now been corrected. A very fine scale model Caudron biplane has been constructed by Mr. C. Smither, and another fine tractor monoplane by Mr. D. Pavely. Mr. Minot, a new member, is constructing a 5-ft. span hydro- monoplane, and we expect great things from it. Mr. P. Hart is constructing a hydro-biplane of the Burgess type, but with Caudron pattern planes. Several new members have joined, and with "Xmas funds" coming in, a glider will be made for the nrw year. In fact, things are very " bright" for 1913. Leytonstone and District Aero Club (64, LEYSPRING ROAD. ) FLYING, week-end as usual. Monthly Report.—The last month has seen a decided advance in the class of models, and tractors and r.o.g.'s are now rather the rule than the exception. The weather throughout the month has been very discouraging, consequently the attendances have not been large, although on several occasions Messrs. Louch, Bond, Gittus, Marmim and others of the late Hackney and District Aero Club helped to swell our numbers, Mr. Bond making the best flight of the month with 81 sees, and out of sight. The construction of models for the coming exhibition at Olympia is claiming a good deal of attention in thewoik- shop, so that, although comparatively little flying has been done, the indoor energy during the month looks well for the near future. Paddington and Districts (77. SWINDERBY ROAD, WEMBLEY). Monthly Report.—The work of members during December has been almost entirely confined to designing and procuring the necessary materials for the models to be constructed for the forthcoming aero show at Olympia, Mr. V. E. Johnson's lecture on hydro-aeroplanes on December 28th was successfully- carried through, much valuable information on this subject being gained by_ the audience. The 70 lantern slides illustrating the lecturer's remarks were depicted on the screen exceedingly well by Mr. H. W. White. The annual general meeting of the club will be held probably on Saturday, January 18th, when a full attendance of members is requested. S. Eastern Model Ae.C. (1, RAILWAY APPROACH, BROCKLEY). JAN. 4TH, at Kidbrooke, 2 p.m. to 4.30 p.m. Jan. 5th, at Blackheatb, 7.30 a.m. to 10 a.m.; at Woolwich Common, 10.15 a.m. to 12.30 p.m. ; at Chislehurst, 2 p.m. to 4.30 p.m., on the Common and Cricket Ground (by members of the Chislehurst and District Aero Club). Monthly Report.—Dating the past few weeks the members of tbis> recently formed club have put in a considerable amount of serious work in spite of the wretched weather which has prevailed during the greater part of the time, and which has not been " quite the thing " for the type of models chiefly in evidence, viz., tractor monoplanes and biplanes, the majority of which are fitted with built-up fuselages and substantial landing chassis. Mr. A. D. Nichols has 34
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