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Aviation History
1932
1932 - 0198.PDF
FLIGHT, FEBRUARY 26, 1932 is Immutol Slush, also made by Alexander Duckham. It dries quickly, is entirely unaffected by the changes of temperature, even the extremes of hot or cold, and is absolutely water proof. Another great advantage of this Slush is that, if desired, it may be supplied in red, blue, green, straw or colourless. As a measure of its suitability for the purpose, we might mention that it was used and specified by the Air Ministry as far back as 1914. All these preparations can be obtained from dealers all over the country or from Alexander Duckham & Co., Ltd., Duckham House, Cannon Street. E.C.4. COLD-ROLLED STRIP OTRIP steel is rapidly becoming of k -' great importance in the manufac ture of aircraft. At the Sandvik works in Sweden, whose London agents are the Sandvik British Agency, Ltd., Norwich Union Chambers, Congreave Street, Birmingham, cold-rolled steel strip has been manufactured since 1883. Naturally, such an old-established factory has consistently kept abreast of modern developments, and we were, therefore, not unduly surprised to learn that they are able to manufac ture strip up to widths of 32 in. (800 mm.), and even in this width in lengths of as much as 360 ft., while, if it is necessary, the thickness of small widths of strip may be reduced to 0.00012 in. (0.003 mm.). This steel is, of course, made from the pure Swedish ores, and is particularly uniform and pure throughout the in gots. A departure which should also interest the aircraft manufacturer is the ability of these works to produce tapered strip steel, for it is obvious that tapered metal may greatly sim plify the manufacture of wing spars, especially to the most economical limits. A cold rolled, hardened and tempered steel band, 32 in. (800 mm.) wide, 0047 in. (1-20 mm.) thick, and 360 ft. (110 m.) long. This is the sort of strip which can be obtained from the mills at Sandvilcen. a E H E MODELS SOCIETY OF MODEL AERONAUTICAL ENGINEERS (S.M.A.E.) ""THE Annual General Meeting of the Society of Model A Aeronautical Engineers will be held at the Y.M.C.A., Tottenham Court Road, London, W.C., on Thursday, March 10, at 7.30 p.m. Any nominations for the posts of officers and council of the Society should be sent at once to the Hon. Secretary, S. G. Mullins, 72, Westminster Avenue, Thornton Heath, Surrey. THE MODEL AIRCRAFT CLUB (T.M.A.C.) INDOOR Competition for Scale Model Aeroplanes, Horti- * cultural Hall, on April 1, at 7 p.m. A prize of £2 2s. has been given by Mr. H. B. Pratt for this competition, which will be governed by the following rules:—(1) The competition is for Scale Models of any type of full-size aeroplane, jScale not exceeding 1 in. per foot. (2) Each competitor will be allowed three flights, the model to take off the ground under its own power. The best of the three flights to count for performance points. (3) Points to be awarded on the following basis:—Resemblance to type, appearance and approximate scale measurements (maxi mum 50 points) ; take-off, stability in flight and landing (maximum 25 points; ; workmanship and finish, perform ance, duration seconds (maximum 25 points). The competition is open to members of the Model Air craft Club. In the event of a competitor being unable to attend in person, arrangements will be made for the model to be flown by proxy. Intending competitors should send full particulars of their entry to the Competition Secretary, Mr. T. Newell, 32, Veroan Road, Bexley Heath, Kent, not later than March 16, 1932. The 1932 programme is in the printer's hand, and all members will be receiving one at an early date. ORIGINALITY ; An experimental high-speed model de signed and constructed by Mr. F. M. A. Hughes (T.M.A.C.), fitted with twin tandem airscrews to overcome torque. In trials with this mode) a speed oi •• over 35 m.p.h. has been attained. This model was exhibited at the recent Models Exhibition, and was awarded 1st Prize in its Class. 182
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