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Aviation History
1927
1927 - 0884.PDF
NOVEMBER 17, 1927 THE IV. INTERNATIONAL AIR CONGRESS THE fourth of the series of International Air Conferenceswas held this year in Rome, and lasted from October 24 to October 30. The Italian Conference was extremely wellorganised, both as regards the social side and from the point of the papers presented. The inauguration was held in theSenatorial Palace at Rome on October 24, Signor Mussolini presiding, and welcoming the visitors. In the afternoonthere was a reception in the Capitol by His Excellency the Governor of Rome. The subjects discussed were divided into various sections,such as Air Navigation, Air Touring, and Propaganda ; Scientific section ; Technical section ; Legal section ; andMedical section. Some highly interesting papers were presented under thevarious sections, and it is obviously impossible for us to refer to more than a very few, and to these only by way of verybrief summaries. The papers were printed in Italian, French and English, and visitors were given copies, as well as sum-maries of all the papers in either of the three languages. In the section dealing with air navigation, a great numberof papers were presented. It is rather regrettable that no English paper was read in this section. Col. E. V. Clark pre-sented a very interesting paper on "' Commercial Aeroplanes in the United States," in which he dealt with the effectswhich the fact that America is confining herself almost entirely to mail routes has had on the development of machines. Maj. R. van Crombrugge dealt with commercial aviationin Belgian Congo, where the King Albert air line operated by the S.A.B.E.N.A. company is doing some really excellentwork, using Belgian-built Handley-Page biplanes. To the scientific section, Maj. H. W. Wimperis contributeda very good paper on " The Progress of Aeronautical Research in Great Britain," in which he outlined the organisationof research in this country, and gave a few examples of the more interesting subjects of research now being carried out,such as on the slotted wing, the tailless aeroplane, the rotating wing aeroplane, supercharged engines, and seaplane work. Of other papers in this section, one by C. Pallavieino on" Tracing of Wing Profiles, and the Connection of Wing with Fuselage," was of considerable interest to such of our readersas have followed Mr. North's articles in THE AIRCRAFT ENGINEER. Mr. Pallavicino outlined a method of tracing acentre line curvature from a group of good symmetrical profiles, using a curve which differed little from a semi-cubicparabola instead of using the circular arc, as is more usually done. On the subject of interference, the author describedhow, by suitably altering the angle between the wing surface and the sides of the fuselage, etc., the aerodynamic efficiencywas increased by 13 per cent, in the case of a monoplane, and by 10 per cent, for a biplane. The Technical Section, as was to be expected, produced In-far the greatest number of papers. Again it was unfortunate that not a single British paper was included. Mr. F. HandleyPage is known to have attended the Congress, and it was probably only his well-known modesty which prevented himfrom reading a paper before such a distinguished gathering. To give our readers an idea of the variety of subjectsdiscussed, we give below a list of the authors and the papers presented by them.Air Navigation Section.—L. Acampora : Formula for the Classification of Commercial Aircraft. L. Adler: CivilAerodromes in Towns. T. Biffi : Means employed in Airship Navigation. P. Boutiron : The coming Evolution of MarineAircraft and their Suitability for the great Sea Airways in the Future. L. Breguet : Calculation of the Cost of AerialTransport. S. Cacopardo : Prohibited Zones. E. V. Clark : Commercial Aeroplanes in the United States of America.E. Faludi : The Problem of Civil Airports. P. Freri : Safety in the Air (the parachute). E. Fusco : International Statis-tics of Commercial Air Traffic. O. Hueff er : Utilisation of Mer- cantile Ports for Civil Air Navigation. J. Lobo d'Avila Lima :Portugal's Contribution to the Development of Air Navigation. E. Mellini : Civil Air Navigation in Relation to Railwayand Postal Transport. C. Musto : Necessity of Organising Air Traffic. D. Naselli : Captains and Engineers of Air Lines. E. Rocco : Hydroaviation, Hydroports of some Italian CivilLines. S.I.S.A. : Report of a Special Type of Fluvial Air- port for the Triest-Turin Airline. A. Solaro : Air Centresfor Touriug in Italy. L. Tarantini: Form and Dimensions of Landing Grounds. L. Tarantini: Proposed Modificationsin the Convention for the Regulation of Air Navigation. F. Troiani : The Opening of a New Airport in Rome. R. VanCrombrugge : Aviation on the Congo. The " King Albert " Airway. M. Ionkheer van den Berch van Heemstede : Memo-randum on the Returns from Aerial Undertakings. Scientific Section.—C. Alippi : A General Demonstration of the Paradox of Euler, and some Thermo-aerodynamicConsiderations. R. Bilancini and L. Borriello : Provisional Draft for a Meteorological Log-Book. M. Boel : Discardingof Velocity in Birds. D. Camiciotti : The Aerological Station of Vigna di Valle. G. Elliot : Reduction to Sea Levelof the Atmospheric Pressure by Means of Graphic-mechanical Processes. F. Eredia : The Exploration of the Atmosphereby Means of Kites and Balloons. C. Ferrari : Experiences with a Self-Rotating Screw. M. Giraul : Notes on the Varia-tion of Pressures and Velocity in a Viscous Fluid. M. Goeta : Plan for a Modern Laboratory for the Scientific Developmentof Thermo-Aerodynamics. E. Herrera : A Serious Incon- venience in Open Aerodynamic Tunnels. V. F. Hess :The Discovery of Cosmic Radiation on the Occasion of Balloon Ascents of the Austrian Aero Club in 1911 and 1912.A. Iotti da Badia Polesine : Remarks on Aerodynamics and Physiology of the Flight of Birds. S. Kawada : On thefundamental Principles of the Vortex Theory of the Air- screw. C. Pallavicino : Tracing of Wing Profiles, and theConnection of Wing with Fuselage. M. Panetti : Deduction of the Polar of a Machine from the Polar of the PrincipalSupporting Surface. E. Pistolesi : Contribution to the Study of an Airscrew in a Lateral Wind. P. Puvrez : Im-proved Means of Measuring used in the Wind Tunnel at Rhode St. Genese (Belgium). Scuola Ingegneria Torino : Log-arithmic Diagrams of Screws. Grouped into 25 families with Reference to the Ratio of the Pitch to the Diameter. T.Suhara : Distribution and Oscillation of the Temperature in the Principal Parts of an Aeroplane Engine. Van derHegge Zyhen : Experiments on the Distribution of the Velocity. Pressure on the Strata Surrounding a Wing fora two-dimensional Current. Visani : The Use of Aerolo- gical Observations for Defining the Anemological Regimenof a Region. K. Wada : On Frictional Resistance on Fluid of Small Viscosity. H. \V. Wimperis : The Progress ofAeronautical Research in Great Britain. Technical Section.—G. Almagia : Launching of Aircraft—The Catapult. E. Angeloni. Some Considerations with Respect to Flying at Extremely High Altitudes. S. Bedendo :Schemes for Determining the Reaction of the Controls. L. Biondi : Tests in Flight of Aircraft Controlled with Resultsfrom Ground Tests. N. Bonaretti : Notes on Elektron and Its Use. F. Bonifacio : Problem Connected with Safety,Means of Sauvetage and various Apparatics on Board Com- mercial Aircraft. L. Cagnotto : Catapults for Launching ofHydroplanes. M. Corelli : Inquiry about some Experi- ments and Particulars Made for the Testing ol AviationPetrol. D. Cosci : Calculations of the Functional Perform- ances of an Airscrew Based on the Consideration of theEffective Angle of Incidence. R. de Glymes : Application of the Airscrew " Schul " to Aircraft. G. Dompe : Esti-mating the Baricentric Vertical of the Gas Volume of an Air- ship. P. Dupont : Introduction to the Study of the Biplane.Mutual Action of two Non-contiguous Bodies. A. Eula and A. Viti : Calculation of the Radius of Action of Aeroplanesand Recent Transoceanic Flights. F. Franck : Disturb- ances Caused by Ignition Circuits in the Wireless Circuits onAeroplanes. G. Gabrielli : An Approximate Method of Projecting Airscrews. N. Galante : On the Calculation ofLong Compressed Prisms along the Axis. Grard : Light and Ultra-Light Alloys in the Thermical Zone of Work in AviationMaterial. C. Gustosa : What is Required to Facilitate the Development of multi-motor Seaplanes. F. Haus : Influenceof Static Longitudinal Stability on the Trajectory of Aero- planes. F. Haus : Concerning Light Metals. G. Lehr :Supercharged and Subcharged Aircraft Engines. A. Levi Cases : Particular Problems Concerning the General Con-struction of the Heavy Oil Motors as Regards Air Navigation. L. Lo Curto : Characteristics of the Principal Light Alloys.G. Magaldi : Aerial Navigation and Launching Mechanism. G. Montelucci : On the Protection of Iron by Use of Cadmium.Use of the Eutectic Alloy Cadmium-Zinc for the Coating of Steel Wires for High-Resistance Cables. E. Pistolesi : Calcu-lation of the Elastic Line of the Propeller. G. B. Pitscheider : Restrictions on the Choice of Materials Used in AeronauticalConstruction. E. Puvrez: Contribution to the Problem of the Choosing of Wings. F. H. Reynekcr : Some Remarkson the Principles Underlying the Determination of the Load Factors Employed in Calculating the Resistance of Aircraft.L. Sante da Rios : On the Lift of an Air-Screw with a Ring. L. Stipa : Auto-Cooling Motors for High Altitudes. Van derMass : Some Experiments on the Longitudinal Stability of Aeroplanes. F. E. Wolf : Some Observations about theProperties of Materials for Construction, as an Estimating Basis for Aircraft. P. Zonta : On the Technics of RadioApparatus on Board. 800
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