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Aviation History
1953
1953 - 0996.PDF
ISO FLIGHT THE INDUSTRY Double Mamba Test Rig TTHE Admiralty have placed with Heenan and Froude, Ltd., a * contract for the supply of two complete plants for testing Armstrong Siddeley Double Mambas as employed in the Fairey Gannet. These plants will be installed at one of the R.N. Aircraft Repair Establishments. In this type of equipment the engine on test is mounted on a dummy wing stretching the width of the test-house. Testing will be remotely controlled from a soundproofed chamber fitted with an observation window. All controls, cabling, piping, etc., from the control panel to the engine on test will be incorporated in the wing structure. The contract includes supplying the dummy wings, control panel with instruments, fuel cabinet, accessory fuel-storage system, oil priming truck, control-room heating and control-room and engine-room lighting. New G.E.C. Directors TWO new directors have been appointed to the Board of the General Electric Co., Ltd. They are Mr. O. W. Humphreys, B.Sc, F.Inst.P.,M.I.E.E.,and Mr. A. L. G. Lindley,M.I.Mech.E. Mr. Humphreys is the director of the company's research laboratories at Wembley, Middlesex. He joined the laboratory in 1925 and in 1927 was appointed to its leading scientific staff in charge of the heat group. During the war he acted as assistant director, with general responsibilities for administrative matters. Mr. Humphreys is also a council member of the Electrical Research Association, a director of E.R.A. Patents, Ltd., vice- president of the Institute of Physics, and a member of a large number of technical councils and committees. Mr. Lindley joined Fraser and Chalmers Engineering Works in 1918 as an apprentice and, after spending some years as an assistant engineer in their mining department, was appointed— in 1932—chief engineer of the British General Electric Co., Ltd., of South Africa. He was later appointed assistant general manager and a director of that company. Returning to England in 1949, he became general manager of the Fraser and Chalmers Engineering Works. Owen Organization in Canada THE Owen Organization has recently established a company in Toronto, Canada, under the management of Mr. B. S. Male, which will be handling the products of some of the main firms within the framework of the British group. The new company is under the name of Rubery, Owen Canada Ltd., and has offices at 1470, The Queensway, Postal Station N., Toronto 14. The immediate aim is to promote the sales of Rubery, Owen and Co. Ltd., on the office equipment side, to increase supplies to the trailer and truck industries, and to handle sales of domestic-equip ment products made by one of the firms in the organization. The Board of the company is composed of Messrs. A. G. B. Owen, E. W. B. Owen, R. H. Line and B. S. Male. For Instrument Calibration 17"NOWN as the null-reading cistern manometer, equipment •» for the calibration of pressure-reading instruments is in production by Glass Developments, Ltd. Much of the existing calibrating gear at present available to Service operational units is insufficiendy accurate for the precise calibration of some modern aircraft instruments, such as Machmeters. The range of many such calibrators may also prove inadequate to deal with airspeed indicators and altimeters likely to be introduced within the next few years. The null-reading cistern manometer has been developed with the intention of providing a precise means of calibrating pressure measuring instruments (such as altimeters or Machmeters) over positive or negative pressure ranges up to one atmosphere, and robust enough for unit use, while having accuracy comparable with that of standard equipment hitherto only available at main tenance depots. The accuracy obtainable in the positive-pressure range is stated to be fully equal to that of the master airspeed calibrator Mk 2A in Service use. Negative pressure can be applied with an accuracy within 0.01 in of mercury. The manometer is operated on a principle differing from that of most conventional " U " tubes, barometers and similar instru ments in which die changing height of mercury is read off against a scale. In this case the instrument is always read against the same mark, the pressure or suction which it is required to apply being set up first by moving the mercury cistern relative to a scale, and the pressure or suction then being applied until the level returns to its original zero position. The use of this " null " method, it is claimed, eliminates many sources of reading error; moreover, die design is such that con siderations normally affecting accuracy of manometers, such as die bore of tubing, have no influence on accuracy, which in this case is determined by the accuracy of an engraved scale. The manometer can be dismanded, cleaned and parts rep'aced widiout affecting accuracy, and there can be no vacuum problems such as may occur in the filling and maintenance of barometers. Glass Developments, Ltd., whose address is Sudbourne Road, Brixton Hill, London, S.W.2, are manufacturers of scientific glassware and laboratory equipment. Also among dieir products are radio-active luminized and fluorized aircraft-instrument dials. "Ted" Jackson of Dunlops THE many who knew him during the war years will be sorry to learn that Mr. Edward Jackson, who travelled thousands of miles servicing Dunlop aircraft equipment, has died in Coventry, at the age of 60, after a long illness. As liaison officer between Dunlop's aviation division and the R.A.F., "Ted" Jackson was well known at practically every airfield throughout the country. After the war he was made an M.B.E. for his services. Mr. Jackson joined the Dunlop Rim and Wheel Co. in 1928 and became associated with aviation ten years later. Ill-health forced him to retire in 1947. IN BRIEF Mr. P. E. Trier, M.A., and Mr. G. Knott, M.A., A.M.I.E.E., have been appointed joint managers of the Mullard Research Laboratories. * * * Data on their latest range of pulley-blocks and associated hoist gear are the subject of an illustrated brochure from Herbert Morris, Ltd., Loughborough. * * * A new brochure on their lightweight silver-zinc accumulators, including discharge-characteristic carves for the various types, has been published by Venner, Ltd., New Maiden, Surrey. MR. IVAN M. WALLER. B.A.. M.I.Mech.E., has joined the Lockheed organization to assist, initially, in the development of the Lockheed-Avery flexible pipe and self-sealing couplings division of the company. MR. PETER GEORGE WARE, A.R.Ae.S., M.S.A.E., has joined Dowty Fuel Systems, Ltd., as commercial manager. He has served in the Royal Navy, and held posts with Bristols and with Roy Fedden, Ltd. Chemical and mechanical characteristics of "Vybak" rigid sheet, together with recommended methods of fabrication, are detailed in a brochure from Bakelite, Ltd., 12-18 Grosvenor Gardens, London S.W.I. "Vybak" is produced in a variety of thicknesses, colours and surface finishes, from vinyl chloride acetate and polyvinyl chloride resins. Mr. L. H. R. Everitt, B.Sc.Eng.(Hons.), A.M.I.E.E., until recendy chief engineer to Ashley Accessories, Ltd., has been appointed deputy general manager of D. H. Bonnella and Son, Ltd. Mr. Everitt received his technical training at University College, London, and Johnson and Phillips, Ltd. Subsequently, he served with G.E.C. as development engineer under Dr. W. Wilson and, during the war, with the R.A.E., Farnborough.
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