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Aviation History
1920
1920 - 0788.PDF
SIDEWINDS MESSRS. MANN, EGERTON AND CO., LTD., have just produced a little booklet which briefly and concisely gives a complete rtsumi of all their various departments and their individual activities, together with different depdts, etc., of one of the largest and most progressive firms in East Anglia. East Anglia is, for the motorist, one of the most beautiful sections of England which he can choose to reside in, or tour in, and whether he lives in the city or in the country he will find that by dealing with Mann, Egerton he can obtain all he" requires both for motoring and. for his estate and house, and obtain same at standard prices. Copies of the booklet can be obtained from any Mann, Egerton depot. WE are informed by Vickers, Ltd., that at the conclusion of the action brought by Admiral Sir Percy Scott against the company in connection with the sales of his inventions, Sir Trevor Dawson placed his resignation in the hands of the chairman of the company. The board, being satisfied that Sir Trevor Dawson's action throughout was correct, declined to accept his resignation. THOSE who are looking for a flying machine at a low price will be interested in the announcement made by the Central Aircraft Company, that they intend to shortly place on the market a two - seater triplane, the price of which will be £250 complete. The motive power will be a 45 h.p. engine, and it is stated the machine will have a maximum speed of 90 m.p.h., and a range of 400 miles, bringing Paris, Brussels and Rotterdam within the scope of non-stop flights. It is expected that the petrol consumption will be slightly under 4 gallons per hour, which will give a little over 25 miles to the gallon. The machine will be simple in construction, safe and easy to fly, with a factor of safety of 8-1. The wing span will be 17 ft., so that the machine can be housed in a small shed or garage. B H PUBLICATIONS RECEIVED Royal Automobile Club Year Book, 1920. The Royal Automobile Club, Pall Mall, S.W. 1. Price 5s. net. ^ L'Atronautique Hier-Demain. By Commandant Orthlieb. " Les Lecons de Guerre " Series. Paris : Masson et Cie., 120, Boulevard Saint-Germain. Price 9 fr. net. Aero Dictionary: English-French, French-English. By Leonard Hemslowe. London : Benn Brothers, 8, Bouverie Street, E.C. 4. Price, 55. net; post free, 5s. 6d. Die Deutschen Luftstreit-krafte im Weltkriege. By G. P. Neumann. Berlin : E. S. Mittler and Son, Kochstrasse 68-71. Price, paper covers, 38 marks; bound, 55 marks. Airplane Performance as Influenced by the Use of a Super- charged Engine. By George de Bothezat. Technical Notes, No. 2. National Advisory Committee for Aeronautics, Navy Building, Washington, D.C., U.S.A. Report No. 62 : Effect of Altitude on Radiator Performance. National Advisory Committee for Aeronautics, Navy Building, Washington, D.C., U.S.A. Report No. 63 : Results of Tests on Radiators for Aircraft Engines. National Advisory Committee for Aeronautics, Navy Building, Washington, D.C., U.S.A. Report No. 65. The Kiln Drying of Woods for Airplanes. National Advisory Committee for Aeronautics, Navy Build- ing, Washington, D.C., U.S.A. Report No. 73. The Design of Wind Tunnels and Wind Tunnel Propellers. National Advisory Committee for Aero- nautics, Navy Building, Washington, D.C., U.S.A. Report No. 77. The Parker Variable Camber Wing. By H. F. Parker. National Advisory Committee for Aero- nautics, Navy Building, Washington, D.C., U.S.A. •• > Report No. 83: Wind Tunnel Studies in Aerodynamic Phenomena at High Speed. National Advisory Committee for Aeronautics, Navy Building, Washington, D.C., U.S.A. Technical Note No. 3 : Notes on the Theory of the Accclero- meter. By E. P. Warner. National Advisory Committee for Aeronautics, Navy Building, Washington, B.C., U.S.A. Technical Note No. 4. The Problem of the Helicopter. By E. P. Warner. National Advisory Committee for Aero- nautics, Navy Building, Washington, D.C., U.S.A. ' Technical Note No. 5. Relation of Rib Spacing to Stress in Wing Planes. By A. F. Zahm. National Advisory Committee for Aeronautics, Navy Building, Washington, D.C., U.S.A. Catalogue Galvanizing, Welding and Sheet Metal Work. Thos. Marshaland Son, Armley Road, Leeds. JULY 15, 1920 IMPORTS AND EXPORTS, 1919-1920 AEROPLANES, airships, balloons and parts thereof (not shown separately before 1910). For 1910 and 1911 figures see "FLIGHT" for January 25, 1912; for 1912 and 1913, se© "FLIGHT" for January 17, 1914; for 1914, see "FLIGHT" for January 15, 1915; for 1915, see " FLIGHT " for January 13, 1916; for 1916, see "FLIGHT" for January 11, 1917: f°r 1917, see "FLIGHT" for January 24, 1918; for 1918, see " FLIGHT " for January 16, 1919; and for 1919, see " FLIGHT " for January 22, 1920. Imports. Exports. Re-Exportation. January... FebruaryMarch ... April May June 1919.£ 555.989 453,822 704,424 97,662 136,6311,410 1920. 2.323 9,320 2,092 5,918 761,425 491 1919. 57,571 57,972 72,716 25,433 38,428 41,526 1920. 32,752 68,932 67,600 148,484 237,627 300,572 1919. I92O. 697 400 — — 4°° — 61,150 1,949,938 781,569 293,646 855,967 too 62,247 H H 13 H The London-Amsterdam Mail THE aerial mail between London and Amsterdam, under the contract secured by Handley Page Co., made a successful start on the morning of July 6, when a De H.o set out from Cricklewood, in the presence of Gen. Sir F. H. Sykes and Col. Waterhouse, and landed safely at her destination. New York *o Toronto by Flying Boat LIEUT.-COL. BARKER and Captain Morse, with a mechanic, arrived at Toronto from New York on July 8 in a flying-boat equipped with a 425 h.p. engine and carrying six passengers. E H H H AERONAUTICAL PATENTS PUBLISHED Abbreviations: cyL «• cylinder; I.C. — internal combustion; m. ~ motors APPLIED FOR IN 1919 The numbers in brackets are those under which the Specifications will beprinted and abridged, etc. Published July 15, 1920 3,621. BRITISH OXYGEN CO., S. W. BRAY and I. H. BALFOUR. Production of hydrogen. (144,751,) \6,562. J. W. CAWDERY. Parachutes. (144,792.) 8,354. H. N. WYLIE, R. H. ATCHERLEY and W. C. J. SCHLIE. Metal aerofoilribs. (144,828.) 9,725. W. F. SAVAGE and B. H. MALLINSON. Combined radiator and airintake for aircraft. (144,838.) 11,411. SOPWITH AVIATION AND ENGINEERING CO., F. I. BENNETT and V. W.EYRE. Lubrication of I.C. engines. (144,847.) t*3>472- F- H. PAGE. Aeroplaaes. (141,867.) 14,209. SPERRY GYROSCOPE CO. Gyroscopic compasses. (127,830.) If you require anything pertaining to aviation, study " FUGHTS" Buyers' Guide and Trade Directory, which appears in our advertisement pages each week (see pages 1,11 and Hi). NOTICE TO ADVERTISERS All Advertisement Copy and Blocks must be delivered at the Offices of "FLIGHT," 36, Great Queen Street, Kingsway, W.C. 2, not later than 12 o'clock on Saturday in each week for the following week's issue. FLIGHT The Aircraft Engineer and Airships 36, GREAT QUEEN STREET, KINGSWAY, W.C. 2.Telegraphic address: Truditur, Westcent, London. , Telephone: Gerrard 1828. - SUBSCRIPTION RATES ; \f " FLIGHT" will be forwarded, post free, at the following rates t— UNITED KINGDOM . ABROAD s. d. s, d. 3 Months, Post Free.. 7 1 3 Months, Post Free.. 8 3 6 „ „ .. 14 1 6 „ „ .. 16 6 12 „ „ .. 28 2 12 „ „ .. 33 • These rates are subject to any alteration found necessary under abnormal conditions. * Kuropfn substriptioHs must be remitttd 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 trossed London County and Westminster Bank, otherwise no responsibility will be aceepted. 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. 788
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