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Aviation History
1935
1935 - 0871.PDF
APRIL 18, 1935. FLIGHT. HERE and THERE Brancker "Memorial Lecture T HE Council of the Institute of Transport has arranged to hold an annual open lecture on air transport. This lec ture will be known as the Brancker Memorial Lecture, in memory of the late Air Vice-Marshal Sir Sefton Brancker, K.C.B., A.F.C., who lost his life in 1930 in the R.101 disaster. Sir Sefton Brancker became a member cf the Institute in 1922, served on the Council from 1923 to 1926, was a Vice-President 1927-28, and President 1928-29. He contributed a number of papers on civil aviation. The Milan Exhibition In conjunction with the Milan Samples Fair, the First Inter national Aeronautic Salon ;s to be held in the Palazzo dello 5port, Milan, from October 12 to 28. The event will be biennial, the second being held in 1937, and thus it will not clash with the Paris Salon. It is intended to divide the exhi bition into ten sections, as follows: (1) Landplanes, seaplanes, helicopters, gliders, lighter-than-air craft. (2) Engines for aeroplanes and dirigibles, engine components. (3) Hydro planes and boats. (4) Metal work, alloys, plywoods, cordage, silk, linen, cotton, rubber textiles, paints and varnishes, oils and spirits. (5) Navigational instruments, wireless plants, lighting equipment, safety apparatus, armaments. (6) Re search equipment, testing apparatus, and tools. (7) Meteor ological instruments, aerial cinematograph instruments. (8) Aerodrome equipment (military and civil), signalling plant, first-aid equipment, apparatus for testing physical condition of pilots. (9) Flying clothing. (10) Maps, etc. The Palazzo dello Sport is one of the largest buildings of its kind in Europe, its floor space totalling over 30,000 sq. yds. Exhibition space will cost 45 lire (about 15s.) per square metre for aircraft of all kinds, and 100 lire (about 33s.) per square metre for accessories. Lunch to Sir Macpherson Robertson i\r Macpherson Robertson, K.B.E., was the guest of honour at a luncheon given last Thursday by the Royal Aero Club, which was supported by the Royal Aeronautical Society, the Air League of the British Empire, and the Society of British Aircraft Constructors. Lord Gorell, the Chairman of the Royal Aero Club, presided. Lord Londonderry, Secretary of State for Air, proposing the health of Sir Macpherson, said that if they were to believe all the criticism they had heard—and he himself welcomed criticism—then Sir Macpherson Robertson was the man who might be said to have awoken the Air Ministry out of a somno lent condition! He felt that Sir Macpherson was to be thanked very much indeed for stimulating interest in avia tion, and for the strides made since last October, which were the outcome of the race. Sir Macpherson himself, in reply, said he did not think that when he suggested the race two years ago it would turn nut to be so successful. He thought that within the next eighteen months mails would be delivered between England and Australia in between five and seven days. What, how ever, puzzled him was why it had been left to a confectioner to stimulate air transport! The Duke of Atholl, President of the Royal Aero Club, pre sented a gold medal to Mr. C. W A. Scott, who, with his co-pilot Mr T. Campbell Black, has been awarded this token of recognition A silver medal was handed to Mr. O. Cathcart J ones, and a similar medal has also been awarded to Mr. K H Walker, who wa« unfortunatelv abroad. The Gold Medal of the R.Ae.C. (right , presented to Scoti and Black, and the Silver Medal awarded to Jones and Waller. "WITH BOOTS ON." Senor de la Cierva testing a C.30 Autogiro seaplane over the Medway at Rochester, where it has been fitted with floats by Short Brothers. The first Autoglro seaplane had an Avro "Avian " fuselage and was persuaded off the water off Hamble in Southampton Water. This happened many years ago, when the present system of rotor- starting had not been evolved. Mr. S. M. Bruce, High Commissioner for Australia, in pro posing the health of the Chairman, expressed his thanks to Sir Macpherson for the wonderful advertisement which he had given to Australia. A " Landing " Altimeter Now that wireless is being carried on the majority of com mercial aircraft, the "landing" altimeter (in other words, a sensitive altimeter calibrated to function up to a com paratively low altitude) is in greater demand. When landing in conditions of bad visibility the pilot receives the barometric pressure by wireless irom the aerodrome at which he intends to land, so that he can correct the altimeter according to that pressure, thereby giving himself workably accurate evidence of his height above the aerodrome and close down to its surface. Short and Mason, Ltd., are manufacturing a " landing " altimeter with a dial reading up to 2,000 ft. or 700 metres. Accuracy to within 10 ft. is claimed. The principle of the instrument is, of course, similar to that of an ordinary alti meter, but it is fitted with a specially picked diaphragm, and is compensated for temperature ovei a range of minus 30 deg. C. to plus 50 deg. C. A concentric inside the height- recording one is a " pressure scale," and reads in millibars, millimetres of mercury or inches of mercury. This scale enables the altimeter to be adjusted, by means of a milled knob, for changes of barometric pressure. The instrument, which is contained in a moulded bakelite case, is connected to the static head of an air-speed indicator; this measure is necessary because the air pressure in the cock pit of an aeroplane, particularly a fast type, differs from the barometric pressure outside the cockpit, resulting in very con siderable inaccuracies of an altimeter not compensated in this manner. "Nuts to Crack" As many readers will have guessed, the solution to " Nuts to Crack—No. 4 " in last week's issue was inadvertently con fused with another problem in the series. The correct answer to the query—rough running at above 1,400 r.p.m., though carburation and ignition were in order—was as follows — The airscrew had worked loose on its hub, and above ,400 r.p.m. a flutter and a consequent heavy vibration set in The spinner cap was removed, the airscrew bolts were *ightentd up, and the engine then ran perfectly throughout its whole range.
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