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Aviation History
1925
1925 - 0558.PDF
AIR POST STAMPS By DOUGLAS B. ARMSTRONG Another Catalogue HARD upon the heels of the first English catalogue of the World's Air Posts (recently noticed in FLIGHT) comes the fourth edition of Champions' Catalogue Historique et Descriptif des Timbres de la Poste Aerienne, 1925 (Prix 25 fr.), hitherto the only one of its kind. The present edition is a bulky volume, due to the fact that the very ample descriptive notes are rendered in both French and English. Not only the prices have been revised, but much additional information embodied in the text. The former show some sensationsl advances, even at 85 ff. to the pound. The only serious fault we have to find is the method of dividing the work into three watertight compartments devoted respectively to official and semi-official air stamps, and cachets. This is a decided hindrance to ready reference and destroys moreover the chronological order of the flights. Apart from this small defect, however, it is an invaluable work of reference for aero-philatelists, and the chapter dealing with the Balloon Posts of the Sieges of Paris and Metz is admirable. America-Bermuda Air Mails SOMETHING like 2,000 letters were carried by the dirigible " Los Angeles " (late Z.R.3) when on her maiden trip from Lakehurst to Bermuda on February 20. As no landing could be made they were dropped by parachute, receiving the Hamilton (Bermuda) post-mark of the next day, February 21. Three bags of air mail were brought from Bermuda, how- ever, on the return journey of the second trial trip, the letters showing in addition to the Hamilton postmark of April 16, a two-line cachet in black, inscribed " BERMUDA FIRST OVERSEAS AIR MAIL." A small mail was also carried by the " Los Angeles " to Porto Rico on May 3, and another brought back on the return flight. Flown covers were impressed with a four line cachet in green, reading " By airship ' Los Angeles ' from Port Rico to Lakehurst." The postmarks are, San Juan P.R., May 6th and New York (City Hall), May 11th. Warsaw—Danzig AERIAL propaganda stamps issued by the Polish League of Aerial Defence (Liga Obrony Powictrznej Panstwa) were used in connection with the opening of a Warsaw-Danzig air post service on March 10, 1925. Of various values and colours, they represent a direct contribution to a fund for providing a Polish air fleet. One type consists merely of a winged propellor device in a small square frame, but a later issue has an upright rectangular vignette of an aeroplane flying over Warsaw. Both designs incorporate the signi- ficant initials of the League " L.O.P.P." New York-Chicago Night Flights A SMALL amount of mail matter was carried on the experi- mental night flights between Bellefont and Bryan (Ohio) and Lakehurst, N.J., prior to the establishment of the regular night mail service on July 1. Such letters bore the impres- sion of a special cachet encircling the words " Test Flight." A special cancellation was also applied to letters carried from New York to Chicago on the initial night-flight, but the description has not yet been received. Amundsen Flight Cards THE special mail carried by Amundsen on his ill-fated trans-Polar flight, consisting of some thousands of souvenir cards, was salved in its entirety, and is now being distributed through the Norwegian post office. The cards, which have alreadv been described in this column, bear, in addition to the impressed private stamp of the expedition, ordinary postage and air post stamps of Norway, postmarked at King's Bay, Spitzbergen (where the expedition had its headquarters), on June 18, 1925. Air post collectors will be eager to add to their collections these interesting relics of a splendid failure. M W. ffl M The Institute of Metals THE programme of the annual autumn meeting of the Institute of Metals, which has just been issued, is an attractive one. Held in Glasgow, the meeting begins on September 1 with a lecture by Sir John Dewrance, K.B.E., on " Education, Research and Standardisation." The mornings of Sep- tember 2 and 3 will be de\oted to the reading and discussion of no fewer than sixteen papers dealing with many differing aspects of metallurgical work. In the afternoons, visits will be paid to works in the Glasgow district and in the evening of September 2, a reception is to be given by the Lord Provost and Corporation of Glasgow. The concluding day of the meeting, September 4, is set apart for a visit to the Trossachs AUGUST 27, 1925 and Loch Lomond. A copy of the programme, giving fulldetails of the arrangements and of a membership election to be completed in time for the meeting, can be obtainedon application to the Secretary, Mr. G. Shaw Scott, M.Sc, 36, Victoria Street, London, S.W.I. Cellon at Lyrnpne CELLON (RICHMOND), LTD., never, it seems, misses animportant aviation meeting, and at the recent Lympne August Meeting the following machines were " doped withCellon " :—Cranwell light aeroplane (winner of the single- seater Light Aeroplane scratch speed race), Bristol, Hawkerand Parnall Pixie. The Royal Air Force Memorial Fund THE usual fortnightly meeting of the Grants Sub-Com- mittee was held at No. 7, Iddesleigh House, on August 20. Lieut.-Commander H. E. Perrin was in the chair, and the other Members of the Committee present were Mr. W. S. Field and Squadron-Leader E. B. Beauman. The Committee considered in all 17 cases, and made grants to the amount of £'101 10s. 5d. The next meeting was fixed for September 3. m m m m PUBLICATIONS RECEIVED Aeronautical Research Committee, Reports and Memoranda : No. 936 (Ac. 157).—A Continuous Rotation Balance for the Measurement of Pitching and Yawing Moments due to Angular Velocity of Roll. By T. Lavender. February, 1925. Price 6d. net. No. 950.—Reports and Memoranda of the Aero- nautical Research Committee published between April 1, 1923, and December 31, 1924. April, 1925. Price Ad. net. No. 966 (Ae. 182).—Full-Scale Tests of Different Ailerons on Bristol Fighter Aeroplane. By H. M. Garner and E. T. Jones. January, 1925. Price 6d. net. H.M. Stationery Office, Kingsway, London. W.C. 2. Department of Overseas Trade : Report on the Industries and Commerce of Spain, March. 1925. By Capt. U. de B. Charles. London : H.M. Stationery Office, Kingsway, W.C. Price 25. &d. net. Technologic Papers of the Bureau of Standards : No. 234.— A Study of the Seasonal Variation of Radio-Frequency Phase Difference of Laminated Phenolic Insulating Materials. By J. L. Preston and E. L. Hall. April 10, 1925. U.S. Govern- ment Printing Office, Washington, D.C., U.S.A. Price 5 cents. Catalogue Metal Propellers for Aircraft. Metal Propellers, Ltd., Purley Way, Croydon, Surrey. m m m m AERONAUTICAL PATENT SPECIFICATIONS Abbreviations : Cyl. •= cylinder ( i.e. -= internal combustion j m. — motor. The numbers in brackets are those under which the Specifications will be printed and abridged, etc. APPLIED FOR IN 1924Published August 27, 1925 10,401. D. J. MOONEV. Aircraft. (237,644.)10,580. C. A. WRAGG. Planes and control surfaces. (216,115.) 16,980. W. SWIATECKI. Devices for dropping bombs, etc., from aircraft.(237,718.) 22,954. J. TUSCHER. Airplanes. (237,760.) 26,573. DORNIER METALLBAUTEN GES. and C. DORNIER. Metal propellers.(224,883.) 30,701. F. P. CASOVA. Screw propellers. (226,569.) FLIGHT The Aircraft Engineer and Airships 36, GREAT QUEEN STREET, KINGSWAY, W.C. 2. Telegraphic address : Truditur, Westcent, London. Telephone.: Gerrard 1828. SUBSCRIPTION RATES "FLIGHT " will be forwarded, post free, at the following rates :— UNITED KINGDOM s. d. 3 Months, Post Free.. 7 7 6 „ „ ..15 2 12 „ „ ..30 4 ABROAD* s. d. 3 Months, Post Free ..83 6 „ „ ..16 6 12 , „ ..33 0 * Foreign subscriptions must be remitted in British currency. Cheques and Post Office Orders should be made payable to the Proprietors of " FLIGHT," 36, Great Queen Street, Kingsway, W.C.2, and crossed London County and Westminster Bank, otherwise no responsibility will be accepted. Should any difficulty be experienced in procuring " FLIGHT " from local newsvendors, intending readers can obtain each issue direct from the Publishing Office, by forwarding remittance as above. 558
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