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Aviation History
1935
1935 - 0419.PDF
FEBRUARY 21, 1935- FLIGHT. 21 MODELS A Parachute-dropping Biplane : Club News : Competitions for 1935 «i Mr. M. R. Knight's " Kaylet" bi plane and, on the right, details of his ingenious parachute release arrangement. MODERN MODELS The Knight "Kaylet" Biplane A GENERAL-PURPOSE, all-weather biplane—which has been much in evidence during the past season at Hack ney Marshes, Stag Lane, and Wimbledon—designed by Mr. M. R. Knight, joint Hon. Secretary of the Model Aircraft Club (T.M.A.C.), the "Kaylet" is constructed of birch and spruce, with balsa ribs. The top and bottom wings are of equal span, of.comparatively high aspect ratio, tapering sharply towards the tips along the leading edge—not unlike those of recent De Havilland commercial machines. The wings are mounted on the top and bottom of the fuselage by the usual elastic bands, allowing them to be .knocked back-in the event of collisions or heavy landings. A single inter-plane strut is fitted each side of the fuselage, each .strut being mounted in a socket on the lower wing and not actually joining the upper wing, so that although the strutting definitely steadies the wing structure—especially in a wind— no damage to wings or struts results when the wings are acci dentally displaced. The fuselage is multi-sided instead of slab-sided, with open cockpit and cabin windows. The undercarriage is of the usual steel wire " rocker " type, collapsible. In the model illus trated the tail unit consists of a separate fin and tail plane constructed of 22 S.W.G. steel wire covered with " alu- miniumed " oiled silk, but a built-up double-surfaced tail unit has also been successfully employed This model is fitted for parachute releasing, the parachute being carried, folded, in a flap pocket under the fuselage and released in the following manner: The flap is held closed by an elastic band which fits over the extremity of a length ot wire extending downwards from the propeller nose-piece. When fully wound the tension of the rubber motor holds the nose-piece firmly in position, but as the motor unwinds the tension of the flap elastic pulls the wire rearwards (slightly dis placing the nose-piece, which is now held less firmly in posi tion) until the elastic slips off and thus allows the flap to open. releasing the parachute. As many as four parachutes have been released at the same time—on one occasion during an R.O.G. flight. The " Kaylet" has a good speed and climb, especially with an 8in. propeller—roin. and I2in. propellers giving longer flights—and its best duration has been 65 seconds. Some forty different people have "piloted" this model. It has a flat glide, is very stable and easy to fly. A new version is now under construction. The principal characteristics are: — Overall length ... ... 24in. Stagger ... Jin. Dihedral (top) 4 cleg., (bottom) 0 ceg Duration 65 sees. Span ... Chord Gap (max.) ... Weight ... 33in. ... If—3fin. 3?in. ... 6oz. A T MODEL PETROL ENGINES PUBLIC lecture and discussion on " Miniature Internal Combustion Engines " will be held at the Junior Insti tution of Engineers, 39. Victoria Street. London, S.W.i, on Thursday, March 7, at 7.30 p.m. The speaker will be Mr. pgarT. Westbury, M.J.Inst.E.—well known to aeromodelists h-and the chairman will be Professor A. M. Low. All persons Interested in modern developments of small internal combusion Fgmes for model aircraft, power boats and other purposes Pould find attendance well worth while. S.M.A.E. ANNUAL GENERAL MEETING HE Annual General Meeting of the Society of Model Aero- nautical Engineers was held on February 13, when the ' cretary- s and Treasurer's Reports were adopted. The season ta« r one of exceptional interest: the Wakefield Cup bid vv" Great Britain by Mr. Allman, of the Leamington kmer ' M-A.C, against a field of British, French and kh Rti conlPetltors: British models, flown by proxy, gained Lnh 9 and Ioth Peaces in the Moffett International Shield' C°nteSt' held at Akron- U-S-A- ! the Farrow Inter-Club totest attW°n ^y the Manchester M.A. Society; the seaplane bme reall -1 numerous entries, and was responsible lor fess an/ eXCf AiRhts; the power contest showed pro- r-owden • Mr ^ ted in a record being established by Capt. Pe first of t J°W' °f the Blackheath M.F.C., set up a record, fT"e follow?™i6* winSless fuselage Autogiros. ^f: PresiH f "fhcers were elected to serve for ensuing loulbers r 7- Pr- A- P- Thurston; vice-presidents, A. F. 6. «*. Oeoffrey Smithj MBE . chairmanj B. K. John- T^HE son; vice-chairman, R. N. Bullock; hon. secretary, E. F. H. Cosh, 35, Maple Crest, Sidcup; treasurer, W. E. Evans; com petition secretaries, B. K. Johnson, S. G. Mullins; competition reports secretary, M. R. Knight: technical secretary, R. N. Bullock; council, R. Langlev, A 1. Stevens, A. M. Willis, H. York, L. A. Wood. COMPETITIONS FOR 1935 S.M.A.E. has announced the following competitions to held during the present year: — 22 —Eliminating Trials for Moffett Trophy (St. Louis, U.S.A., June 29), at Fairey's Aerodrome, 3 p.m. 12.—Gamage Cup (General Duration), Wimbledon Common, 3 p.m. 16.—" Model Engineer " Cup No. 1 (Gliding), Iving- hoe Beacon, Tring, 3 p.m. 7—Sir John Shelley Cup (Power-driven), Fairey's Aerodrome, 3 p.m 4.—National Cup (S.M.A.E. Cup), Fairey's Aero drome, 3 p.m. 5.—International Wakefield Cup, Fairey's Aerodrome, 4 p.m. (Eliminating trials, n a.m.) 25.—C.S.S.A. Cup (Scale Models), Blackheath, 3 p.m. 8.—Lady Shelley Cup (Seaplanes). Danson Park, Bex- ley Heath, 3 p.m. 29.—Flight Cup (Speed), ground to be announced later. Farrow Shield Inter-Club Contest. Dates (up to Oct. 31) and grounds fixed by affiliated clubs. be April May June July Aug. Aug. Aug. Sept. Sept.
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