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Aviation History
1931
1931 - 0158.PDF
FLIGHT, FEBRUARY 13, 1931 MODELS PUBLICATIONS RECEIVEDA Radiobeacon and Receiving System for Blind Landir, THE SOCIETY OF MODEL AERONAUTICAL Aircraft. By H. Diamond and F. W. Dunmore. U.S.. ENGINEERS (S.M.A.E.) Competitions for 1931.—Members of the S.M.A.E. and.affiliated clubs, or anyone interested in the coming season's competitions, are reminded that any correspondence inconnection with the same should be sent direct to the Com- petition Secretary of the S.M.A.E., Mr. J. Van Hattum," Cloverlands," 18, Stag Lane, Edgware, Middlesex. Particulars and dates of all competitions will be publishedwell in advance, but Mr. Van Hattum (who was appointed Competition Secretary at the annual general meeting inJanuary this year) will be pleased to answer any corre- spondence from intending competitors who wish for any furtherinformation.—S. G. Mullins, Hon. Sec, the S.M.A.E., 72, Westminster Avenue, Thornton Heath, Surrey. THE MODEL AIRCRAFT CLUB (T.M.A.C.) Manchester Squadron No. 51.—All aeromodellists inthis district are invited to get into touch with Mr. J. W. Kenworthy, New Barnes Farm, Barlow Moor Road, WestDidsbury, Manchester, and will be welcome at the flying meetings held at the flying ground, Princess Road,Wilkington, every Sunday morning at 11 a.m. ; opening meeting February 22, 1931. Coventry Squadron No. 9.—Will all Modellists in thedistrict who are interested in model aircraft please get in touch with Mr. M. Pemberton, Y.M.C.A., Coventry. Bunker's Hill, Squadron No. 1.—The inaugural meet-ing will be held on Sunday next, February 15, under the leadership of Mr. W. R. Burnett, nearest station, GoldersGreen, Under-round. 4th Wing, T.M.A.C., Hackney Marsh.—Sixteen mem-bers were present on Sunday, February 8, with 16 fuselage models, and several hours' instructive practice was obtained. The air was lifeless at first, but the wind freshening, somereally fine high flights were achieved. Mr. Batchelor's low- wing, Mr. Wood's high-wing " Dracula," and Messrs. J. and D.Beard's two high-wing Tomtits were deserving of special mention. In the eleven weeks that 4th Wing has been operating,attendance has been highly satisfactory. Very noticeable progress has been made, and the arrival of good flying weathershould find quite a number of members in a position to give a good account of themselves in Inter-Wing Contests. Indoor Flying Meetings.—Will members please takenotice of the following dates :—February 18, 25, March 12, 18, 25, at the Royal Horticultural Hall, Vincent Square,S.W. 1. T.M.A.C. and Sailplane Clubs' Dance.—March 7.Tickets 2s. 6d. Held at the Suffolk Galleries, Pall Mall, S.W., A. E. Jones, hon. sec, 48, Narcissus Road, West Hampstead,N.W. 6. CONSTRUCTOR'S SPECIAL NOTICE De Havilland Notice to Owners and Operators of " Gipsy " engines I, II and III Impulse Starters Fitted to B.T.-H. AG4-4 Magnetos on all " Gipsy" Engines.—A few cases have been reported of delect developing in these impulse starters during running. Arrangements have been made with the makers for the supply ofan improved type of impulse starter. These will bv supplied free of charge by the de Havilland Aircraft Co., Ltd., upon receipt of the old type starter.In any case, a new typo starter should be fitted to the magneto when the •engine is undergoing a complete overhaul. These notes do not refer to the impulse starter fitted to B.T.-H. AG4-2•type magneto. " Gipsy I " engines have been fitted with both AG4-2 and AG4-4 type magnetos, cut " Gipsy II " and " III " engines are fitted withAG4-4 type. The old type of impulse starter is marked either " Vertical," " Inverted,"or " L2B." The improved type is, marked " L2B-II." No. 7. January 29, 1931. "S of ment of Commerce, Bureau of Standards Research Paper ">%Superintendent of Documents, Washington, D.C., X' $\ Price 25 cents. Suilplaning. Soaring Flight Co., 16, Hunter AvenueClarendon, Virginia, U.S.A. Memorandum on Buying Seasons for some of the Principe Goods Imported into Turkey, Palestine, Syria, Iraq, Pet>iuandHejaz and Nejd. No. C.3443. Jan., 1931. Department wOverseas Trade, 35, Old Queen Street, Westminster. S.W \ C'.S. National Advisory Committee for Aeronautics Report*. No. 351. Full Scale Wind Tunnel Tests of a Propeller with tk. Diameter Changed by Cutting off the Blade Tips. By D \\ Wood. Price 15 cents. No. 352. Large-scale Aerodvnami Characteristics of Airfoils as Tested in the Variable J)ensit\Wind Tunnel. By E. N. Jacobs and R. F. Anderson. Pri ft20 cents. No. 354. Aircraft Woods : Their Properties Selection, and Characteristics. By L. J. Markwardt. Price 20 cents. No. 355. Comparative Flight Performance with an N.A.C.A. Roots Supercharger and a Turbocentrifwa: Supercharger. By O. W. Schey and A. W. Young. Price 10 cents. No. 358. Temperature Coefficient of the Modulm of Rigidity of Aircraft Instrument Diaphragm and Spnm Materials. By W. G. Brombacher and E. R. Melton. Price 10 cents. No. 359. An Investigation of the Effectiveness o;Ignition Sparks. By M. F. Peters, W. L. Summerville and M Davis. Price 10 cents. No. 360. Pressure Distribution met a Symmetrical Airfoil Section with Trailing Edge Flaps. ByE. N. Jacobs and R. M. Pinkerton. Price 15 cents. iVo. 361, Experimental Determination of Jet Boundary Corrections (oi Airfoil Tests in Four Open Wind Tunnel Jets of DifferentShapes. By M. Knight and T. A. Harris. Price 20 cents. No. 363. Pressure Fluctuations in a Common Rail Fuel In-jection System. By A. M. Rothrock. Price 10 cents. Super- intendent of Documents, Washington, D.C., U.S.A. m m m m NEW COMPANIES REGISTERED CLEWER AERO CLUB COMPANY LTD., ISO, Southampton Ku«W.C.I. Capital £100 in 2s. shares. Objects :—To carry on the business o! club with a view to assisting in the development of civil aviation, etc. Thsubscribers are:—H. Marshall, 33, Harrington Square, N.W.I, landowner W. E. Fry, 208, Windsor House, 46, Victoria Street, S.W.I, merchantM. Gwynne Lloyd, Kepplestone, Forlcase Road, Maidenhead, major (retired Secretary : K. W. Fiddian. W. E. PILLEY & CO., LTD. Capital £500 in £i shares. Objects : Acquiringbusiness of a motor and aeroplane spare part dealer and factor lately carriti on by W. E. Pilley, at 7, Gothic Arcade, Snow Hill, Birmingham. Director.-W. E. Pilley, " Wilkverrnore," Dorridge, Warwickshire. G. L. Horton, " Crosbie Road, Harborne, Birmingham. m m m m AERONAUTICAL PATENT SPECIFICATIONS (Abbreviations : Cyl. = cylinder ; i.e. = internal combustion ; m. = motor--The numbers in brackets are those under which the Specification will be printed and abridged, etc.) APPLIED FOR IN 1929Published, February 12, 1931. 31,168. H. WHITBY. Radiators. (341,421). 31,428. BLACKBURN AEROPLANE & MOTOR CO., LTD., N. W. G. BLACKBWand T. BANCROFT. Tail-trolley for aircraft. (341,517). 32,832. ANCIENS ETABS. BARBIER, BENARD, ET TUREN.VE SOC. AMISGuiding searchlight for signalling aerial routes. (341,577). 33,966. A. HALL-BROWN. Propulsion of aircraft. (341,602). APPLIED FOR IN 1930Published, February 12, 1931. 1.965. ECLIPSE AVIATION CORPORATION. Engine-starting appara'0"'(341,715). 36, FLIGHT, The Aircraft Engineer and Airships. GREAT QUEEN STREET, KINGSWAY, W.C.2 Telephone (2 lines) : Holborn, 3211. Holborn, 1884. Telegraphic address : Truditur, Westcent, London. SUBSCRIPTION RATES POST FREF UNITED Gloster and Cheltenham Branch, R.Ae.S. THE following lectures, etc.. will be delivered before the Gloster andCheltenham branch of the Royal Aeronautical Society:— Feb. 12 Meeting for Prospective Ground Engineer Candidates. Feb. 19 " Heat-Treatment of Steels." Mr. A. L. Williams. Feb. 26 " Motor Fuels and Modern Methods of Testing," Anglo-AmericanOS Co., Ltd. Mar. 5 " Mechanical Testing of .Aircraft Materials," Mr. L. W. Nethercott. Mar. 19 " Care and Maintenance of Engines," Mr. Kier Smith. KINGDOM 5. d. 3 Months 8 3 6 16 6 12 „ 33 0 UNITED STATES OTHER COUNT*1155' s. ' 3 Months $220 3 Months ? .6 „ $4-40 6 „ \' 12 „ $8-75 12 „ *> • Foreign subscriptions must be remitted in British currency. Cheques and Post Office Orders should be made payable tot' Proprietors of " FLIGHT," 36, Great Queen Street, Kings**. W.C.2, and crossed " Westminster Bank." <( „ Hl< Should any difficulty be experienced in procuring " - *? wt, from local newsvendors intending readers can obtain eacn direct from the Publishing Office, by forwarding reft' above. 152
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