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Aviation History
1933
1933 - 0282.PDF
FLIGHT, AUGUST 3, 1933 AIR POST STAMPS By DOUGLAS ARMSTRONG (Editor of " Stamp Collecting ") More Italian Flight Stamps To the list of special stamps created in connection with the Transatlantic flight of the Italian seaplane squadron under leadership of General Balbo must be added three from Iceland in the form of the contemporary 1-, 5- and 10-kroner postage stamps overprinted diagonally, with the inscription " Hopflug Italia, 1933," which were used upon the mail picked up at Rekjavik on the outward flight, and a single provisional surcharge made by the Newfound land post office preparatory to the return trip to Europe, on July 24. Numerous requests having been received for letters to be despatched by the flight when it touched at Shoal Har bour en route for Rome, a limited mail was opened at a charge of $4.50 per -|-oz. letter, and in the absence of an air mail stamp of the required denomination some 8,000 copies of the newly-issued 75 cents vignette were ordered to be surcharged in the corners with the higher value for the occasion. Lithuanian Flyers' Mail Disaster as well as triumph is recorded in the stamps associated with spectacular flights undertaken by intrepid aviators. Newspaper reports of the tragic fate that over took the two Lithuanian airmen on the last lap of their attempted flight from New York to Kovno made reference to the mail which was recovered from their wrecked aero plane, but it does not appear to be generally known that stamps of a distinctive character were provided by the Lithuanian Consulate General in New York for use on letters sent home by Lithuanian compatriots in America. With the sanction of the home authorities, five hundred copies of each of the five values comprising the com memorative air mail stamps of Lithuania (series 1932) were locally overprinted with a small aeroplane device surmount ing the inscription " Darius-Girenas-New York-1933- Kaunas," and arrangements were made with the United States post office at Brooklyn to recognise and accept these stamps for the purpose of the special mail which is said to have comprised about 1,500 letters. They were sold both by the Consulate and the Lithuanian Societies in New York in aid of the funds of the flight, and their status is similar to that of the lie de France emergency air stamps of 1928. Latest Hungarian "Airs" The symbolism that has characterised previous issues of Hungarian aero stamps is even more strikingly developed in the latest series which made its debut on June 20 in four effective designs by the artists Franz Helbing and Fee. Marton, all finely reproduced in photogravure by the National Printing Works at Budapest. The lower values depict a giant passenger aeroplane passing over the valley of the Danube, whilst those of 20 filler and upwards com prise a symbolical figure of " Flight " perched upon the wing of a flying aeroplane, an aeroplane emerging from the Dawn, with the cross of St. Stephen and the mountains Tatra, Fatra and Matra in the foreground, and a figure of Mercury with arms outstretched supporting a propeller. New Philippines Air Mail On the inauguration of an inter-island air mail service connecting Manila with Oliolo and Negros in the Philippine Islands on May 26 last, five of the regular postage stamps now current were adapted to air post purposes by over printing them with the outline of an aeroplane having the words " Air Mail " inscribed on its wings. The lowest value, viz., 2 centavos, is in the old portrait type, but the 4 c, 12 c, 20 c, and 24 c. are all pictorial designs. Forthcoming Aero Stamps From time to time rumours have been current as to an impending issue of Turkish air mail stamps in connection with the Istanbul-Athens-Brindisi service, but all have proved to be ill-founded. Now it is again reported that the Turkish post office is to issue a special stamp for letters to be carried by the Italian seaplane service that will be put in operation shortly between Istanbul and Rome. _ Spain, who discontinued the use of distinctive stamps for air-borne correspondence some years ago, is said to have in active preparation a new series of Government aero stamps in denominations 5 c, 10 c, 25 c, 50 c, 1 p., 2.50 p., 3 p., 5 p., and 10 p., the higher values being re quired for the South American air mail system. Continental reports state that the United States p0St office will introduce at an early date a new 8 cents air mail stamp bearing a picture of the ill-fated naval airship Akron, and that a total of 5 million copies will be printed in black. Air Post Awards at Vienna High awards were conferred upon British air post col lections by the Jury of the International Philatelic Exhibi tion (Wipa), which was concluded at Vienna on July 9 A handsome bronze statuette donated by the Austrian Aero-Technical Union was conferred upon Miss W. Perm Gaskell's famous collection of pioneer air mail stamps and covers, together with a gold plaque from the Exhibition Committee itself. Mrs. Anson McCleverty's collections of mint air mail stamps of the world gained her the prize for the best exhibit entered by a lady in the shape of a fine piece of silver filigree work, in addition to a gold medal in the special class. A silver-gilt medal went to Mr. \V. Lindsay Everard, M.P., whose exhibit was composed of stamps illustrating various types of aircraft, whilst Mr. R. E. R. Dalwick secured a silver medal with his display of air stamps of the British Empire. Bronze medals fell to Mr. J. A. R. Dryden for a specialised collection of the first United Kingdom Aerial Postcards and covers, and to Miss Gertrude Collins for Persian air post stamps and covers. It is curious that, in view of the large number of air post collections entered for the exhibition, no special class was provided, but each was shown in competition with ordinary stamps in the respective sections. m * m m The Terminal Velocity Dive AN important feature of the performance trials of modern fighting aircraft is the diving test, during which the machine is allowed to dive vertically until its terminal velocity is reached. Under these conditions the rate of revolutions of the engine may increase up to 30 per cent, above the normal type approved r.p.m., increasing the dynamic loadings and stresses of vital components by as much as 70 per cent. The Bristol Company have designed their latest fighter-type engine, the " Mercury V-S.2," to meet these conditions. As the present standard schedule of tests for type approval of aircraft engines does not cover these excess speeds, this engine on completion of its official type test was submitted to supplementary high speed tests comprising 1 hr. at 20 per cent, above normal r.p.m. followed by 10 min. at 30 per cent, above normal r.p.m. The test satisfactorily concluded, the engine was stripped and as the official report states: "The special checks taken before and after test do not reveal any appre ciable detrimental effect of the high-speed running." PUBLICATIONS RECEIVED Airsense. By W. O. Manning, F.R.Ae.S. London: Sir Isaac Pitman and Sons, Ltd. Price 3s. 6d. net. ,. ^ Aeronautical Research Committee Reports and Memoranda : No. 1451. H '«'• Tunnel Interference on Streamline Bodies. By C. N. H. Lock and r- <- fohansen. June, 1931. London: H.M. Stationery Office, W.C.2. ">« Is. 3d. net. Air Potter and War Rights. 2nd Edition. By J. M. Spaight. London: Longmans, Green and Co., Ltd. Price 25s. net. . Patents and Trade Marks. By Benj. T. King., C.I.M.E. King's latem Agency, Ltd., 146A, Queen Victoria Street, EX.4. NEW COMPANY REGISTERED RILCO, LTD., Granville House, Arundel St., W.C.2. Capital, £500 in &• shares. Manufacturers of and dealers in reinforced and non-splinter glass, etc. Directors: George B. Riley, 117, Atkins Rd., Clapham W • S.W.12, glass mfr. Harold Edmonds, 3, Kensington Mansions, »•"•" accountant. ai w & m AERONAUTICAL PATENT SPECIFICATIONS Abbreviations : Cyl. = cylinder; i.e. = internal combustion : m. = .^ (The numbers in brackets are those under which the Specification be printed and abridged, etc.) APPLIED FOR IN 1931 Published August 3, 1933 DAIMLER-BENZ AKT.-GES. Aeroplanes. (395,057.) L. L. DKIOGS, JUN. Parachute flares. (395,126.) »TH-P*I"'- FAIREY AVIATION CO., LTD., A. G. FORSYTH and G. J- ="' Dynamos for aircraft. (395,141.) WRICHT. DUNLOP RUBBER CO., LTD., E. F. GOODYEAR and J- Aeroplane wheels and fairings. (395,150.) engines- AEROL ENGINE CORPN. Combustion chambers for i.e. (395,157.) „. msi-M.) E. G. BUDD MANUFACTURING CO. Aircraft bodies. I ic 'aircraft- AIRSPEED, LTD.. and A. H. TILTMAN. Control oi (395,259.) 3,463. 12,379. 16,202. 17,509. 19,236. 25,686. 36,771. 792
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