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Aviation History
1931
1931 - 0496.PDF
FLIGHT, MAY 22, 1931 InterchangeabilityA NOVEL test which demonstrated the exceptionalinterchangeability of the Bristol Jupiter series F engine was recently carried out at Bristol under the control of theresident Inspector of the Aeronautical Inspection Direc- torate. This was designed to demonstrate the interchange-ability of components and sub-assemblies of the same type from one engine to another, and also the interchange-ability of components taken from the spare parts stores. Six engines were allocated, three being the Jupiter seriesVII F. supercharged type, and three the Jupiter series VIII F. geared type. After these engines had completed their endurance tests,they were completely stripped and laid out separately in their various units and component parts. The engineswere then taken over by the A.I.D. Inspectors, and it was left with them to deal with the interchanging of com-ponents. After the engines were reassembled, the Bristol Co. were informed that an interchange of no less than1,500 parts had been effected. This reassembly was carried out without any difficulty or extra fitting adjustment. Theassembled engines were then submitted to further endur- ance and performance tests, and again stripped down andinspected. The results were striking, for of the 1,500 parts interchanged the only part rejected was a hand-starterbevel pinion replaced owing to the uneven bearing of the teeth. The most conclusive part of the demonstration wasafforded by the fact that the six engines with the inter- changed parts were afterwards accepted by the Air Ministrywithout question. The Guild of Air Pilots and Air Navigators IT is not generally realised that all commercial pilotsholding " B " licences are. eligible to join the Guild as Associates without waiting for five-year qualifications. TheAssociateship gives all privileges of membership except voting rights, and the annual subscription is £2 2s.Air Navigators' Examination : Successful Candidates THE Air Ministry announces: —The following candi-dates, whose names are given in alphabetical order, have passed the examination for Second Class Civil Air Navi-gators' Licences, held on March 30 and 31, and April 1 and 2, 1931 : — Candidates examined at London.—Sgt. S. A. C. Baker,Lt.-Commdr. G. D. Dudgeon-Strt-tton, K.N., Dr. C. C. Fenton, Capt. G. W. Ferguson, Mr. E. Fulford Flt.-Lt G. L. Gandy, Sgt. J. P. Kirton, Flt.-Lt. H. G. Loch,Mr. C. W. Martin, Mr. J. K. Morton, F/O. J. S Newall Flt.-Lt. H. M. Schofield. Flt.-Lt. J. H. Sender, Mr. J.Spafford, Flt.-Lt. G. I. Thomson, F/O. F. Townsend, Flt.-Lt. C. F. Uwins. Candidates examined at Cairo.—F/O. A. K. H. BinleyFlt.-Lt. S. J. Stocks. Candidate examined at Baghdad.—Mr. P. J. Tweedie.The subjects of the examination were:—International legislation—Form of the Earth, Maps and Charts—Meteoro-logy—Dead Reckoning and Direction Finding W/T Navi- gation—Magnet ism and Compasses—Visual Signalling:Morse Flashing, Semaphore and International Procedure. Forty-one candidates were examined at the London centre,four at Cairo and one at Baghdad. Handley Page Slots for Switzerland THK Federal Military Department of Switzerland hasadopted the Ilandley Page slotted wing device, which will be fitted to certain types of Swiss aircraft.Mr. Punch's Good Joke JUST as we had re-lit our office fires we received thewelcome copy of Punch Almanack—sorry! we mean Summer Number. While we received it coldly, by thetime we had finished looking through its 48 pages (exclud- ing advertisements) of black and white and coloured fare,we were well warmed up with laughing. If Summer has not come, a good substitute has—and ridiculously cheapat one shilling! Models: Wakefield International Cup Trials THE above trials, which were postponed on Saturday,May Mi. owing to the weather, will be held on Saturday, May 30, on Wimbledon Common from 3 p.m. to 6 p.m.The postponement has made time very short, and models to be sent to America will be chosen, if at all possible,immediately after the trials. Successful competitors will be asked to let Mr. W. E. Evans, of the Society of ModelAeronautical Engineers, have their models on Monday, June 1, packed in a box with instructions for the helpof those who will be flying them in America. Should the trials have to be postponed again on May 30, they willbe held on Sunday, May 31. PUBLICATIONS RECEIVED Avigation. By Bradley Jones. New York: John ilev& Sons, Inc. London: Chapman & Hall, Ltd. p rjc13s. 6(/. net. The Alliance Record. March, 1931. Printing TradAlliance, 8, Farringdon Avenue, London, E.C. Aluminium : Its Production, Properties and ApplicationThe British Aluminium Co., Ltd., Adelaide House, King William Street, London, E.G. 4.Hints for Commercial Visitors to Portuguese West Africa No. C.3467. Department of Overseas Trade, 35, Old QueenStreet, London, S.W. 1. The Air Weapon. By C. F. Snowden Gamble. Vol. INov., 1783-Aug., 1914. Oxford University Press. London: Humphrey Milford. Price 12s. 6d. Aerial A.B.C. December, 1930-February, 1931. AerialA.B.C., Ltd., 4, Duke Street, Adelphi, London, W.C.2. Price Is.A.B.C. of Gliding and Sailflying. By Major V. W. Page London : Chapman and Hall, Ltd. Price 10s. &d. net. Transactions of the Institution of Engineers and Shipbuilder?in Scotland. Vol. LXXIV. Part IV. Feb., 1931. Institution of Engineers and Shipbuilders in Scotland, Elmbank Crescent.Glasgow. Price 55. NEW COMPANIES REGISTERED AERONAUTICAL EDUCATIONAL TRUST, LTD., 102, Sidney Street.Chelsea, S.W.3.—Capital £2,000 in Is. shares. Under agreement with Brook- lands Aviation, Ltd., and British School of Motoring, Ltd. Instructors inaviation, aerial navigation, aerial and ground signalling, dealers in and importers and exporters of aircraft and aircraft engines, transporters ofpassengers and Roods by air, etc. Directors: H.D.Davis. S. C. H. Roberts. 15, Cathedral Mansions, Victoria, S.W. (principal of the Automobile Engi-neering Training College). E. A. Jones (c/o Brooklands Aviation, Ltd.. Brooklands Aerodrome, Byfleet,'Surrey),director, and flying instructor. G. D.Dugiud. A. P. Bradley. All the above directors shall retire at the first ordinary general meeting, and thereafter, unless or until the company otherwise determine two directors shall be appointed by Brooklands Aviation Ltd. ; two by British School of Motoring, Ltd. ; and one by Brookland^Estate Co. BENNIE S. COHEN AND SON (AVIATION INSURANCE), LTD..39, Lombard Street, E.C.3.—Capital £1,000 in £1 shares. Under agreement with Bennie S. Cohen and Son, Ltd., insurance brokers and agents, etc.Directors: E. L. Lumley (chairman), " Oakhurst," Hildenborough, Kent; (director, Bennie S. Cohen and Son, Ltd.). E. J. Quarrington, 11, ShirleyRoad, Wallington, Surrey ; (director, E. J. Quarrington and Co., Ltd.). SCARBOROUGH AERO CLUB CO., LTD., Greensmith Chambers, 29,St. Nicholas Street, Scarborough.—Capital, £1,000 in £1 shares. Objects: 'o establish and maintain a flying club in Scarborough or elsewhere. Direc-tors : A. E. Thompson, 67, Esplanade, Scarborough, motor engineer. R. P. Robinson, 79a, Waterhouse Lane, Scarborough, motor engineer. A. B.Smith, 1, Royal Crescent, Scarborough, traveller. H. Scriminger, Mayrield, Seamer, Yorkshire, entertainment manager. TECHNICAL LIGHTS AND EQUIPMENT CO., LTD., Audrey House.Ely Place, E.C.I.—Capital £100 in £1 shares. Manufacturers, assemblep and marketers of marine, aviation and other technical equipment as formerlycarried on by G. Davidson. Sole director : G. Davidson, 156, Sloane_Street. S.W.I. m m m « AERONAUTICAL PATENT SPECIFICATIONS Abbreviations: Cyl. = cylinder ; i.e. = internal combustion ; m. - motors. The numbers in brackets are those under which the Specification will be printed and abridged, etc.) APPLIED FOR IN 1930. Published May 21, 1931 , , 1,321. F. WHITTLE. Propulsion of aircraft and other vehicles. (347,.SIXM. 11,912. E. G. BL-DD MANUFACTURING CO. Trusses, particularly for use u> aircraft. (347,471.) , < • 13,439. BOULTON & PAUL, LTD., and J. D. NORTH. Aeroplane wms- (347,488.) 16,784. H. JUNKERS. Valves of i.e. engines. (347,517.) 36, FLIGHT, The Aircraft Engineer and Airships. GREAT QUEEN STREET, KINGSWAY, W.C.2. Telephone (2 lines) : Holborn, 3211. Holbom, 1884. Telegraphic address : Truditur, Westcent, London. SUBSCRIPTION RATES POST FREE UNITED KINGDOMs. d. 3 Months 8 36 16 6 12 >, 33 0 UNITED STATES 3 Months $2-206 „ $4-40 12 „ |8-75 OTHER 3 Months 6 12 17 35 • Foreign subscriptions must be remitted in British currenc: Cheques and Post Office Orders should be made __ Proprietors of " FLIGHT," 36, Great Queen Street W.C.2, and crossed " Westminster Bank." Should any difficulty be experienced in procuring • from local newsvendors intending readers can obtain i- direct from the Publishing Office, by forwarding rent' above. 466
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