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Aviation History
1953
1953 - 1506.PDF
660 FLIGHT, 13 November 1953 THE INDUSTRY Audible Exports A DAKOTA of the Royal Norwegian Air Force recently -**- collected from this country the first consignment of an order placed with Tannoy Products, Ltd., of London, S.E.27, for airfield control and alarm loudspeaker equipment. This system enables both verbal messages and a range of electronic warning signals to be transmitted from a central control unit, either to the whole airfield area or to selected points as required. These announcements and signals are broad cast over large areas by single high-power loudspeakers, a recent Tannoy development which, it is claimed, creates an entirely new performance standard in this field. Together with small internal loudspeakers for remote buildings, the speakers are so positioned as to cover fully each important sub-site. Each sub- site installation is powered by a local amplifier and can be selected individually at the central control unit. The design of this control unit enables telephone cables, often already in existence, to be used for the connection to the sub- sites. It contains a line amplifier, the necessary control switching, a built-in microphone, monitor meter and the electronic warning device. This device gives a choice of seven characteristic and easily distinguishable signals, available at the touch of a button. Rack-mounted combinations of 60- and 200-Watt amplifying units are employed to provide adequate reserve for the varying power requirements of each local site. Tarrant Rushton Activity UNDERSTANDABLY, mention of the name of Flight Refuelling, Ltd., or of its chairman, Sir Alan Cobham, immediately brings to mind the airborne replenishment systems which the firm has pioneered and developed to such an advanced state of efficiency. Their importance has, perhaps, tended to over shadow the other work of which the company is undertaking a steadily increasing amount at its headquarters at Tarrant Rushton Airfield, Blandford, Dorset. The scope of this work, as indicated in a new and profusely illustrated brochure, F-R Services to the Aircraft Industry, includes research, design and development; airframe component construction; aircraft repair and overhaul; aircraft modification, repair and maintenance of instruments, radio and electrical equipment and safety equipment; mechanical and electrical test ing of materials and components; and flight testing. This work is done, under M.o.S., A.I.D. and A.R.B. approval, in shops Hawker Sea Hawk fuselage rear-halves in production in the Tarrant Rushton shops of Flight Refuelling, Ltd. (see accompanying paragraph). and hangars totalling a quarter of a million square feet in area. Photographs in the brochure show Vampire Trainers, Meteors and other aircraft being overhauled in considerable numbers, and on this page we are able to illustrate one aspect of the major- component work now being undertaken. New Aircraft Electrical Cables TWO new types of aircraft wiring cables have lately been added to the range manufactured by British Insulated Callender's Cables, Ltd. One, known as Nypren, has been designed for use in place of the well-known Pren (a glass-braided, polychloroprene- insulated cable) when there is a possibility of contamination by the ester lubricants now coming into use for gas turbines. Basically, a Nypren cable has a nylon covering added to Pren, thus affording a useful degree of protection against the synthetic oil. Slight reduction in the thickness of the polychloroprene insulation allows the overall diameter to remain unchanged. At present these cables are available only in the smaller sizes, which are type-approved to M.o.S. Specification EL 1771, Issue 1. The other new cable, known as Unifire, is designed for fire- detection and extinguisher circuits and, it is stated, will operate in open flame at 1,000 deg C for at least five minutes. The composite glass and asbestos insulation is impregnated with silicone compounds. Unifire is type-approved to EL 1736. IN BRIEF The directors of Rolls-Royce, Ltd., have declared an interim dividend of 5 per cent, less tax, for the year ending December 31st, 1953. * * * Amal, Ltd., announce the retirement of Mr. T. W. Clibbery, general manager and a director. Mr. Clibbery, who will remain available in an advisory capacity, has served the company and its predecessor—Amac, Ltd.—for over 40 years. * * * Wolf Electric Tools, Ltd., Hanger Lane, London, W.5, are now in production with their new 6in Type GQ6 portable electric grinder. Intended for heavy-duty welding-dressing fettling and comparable duties, the machine runs its resin-bonded wheel at a periheral speed of 8,800ft/min. * * * Barlow-Whitney, Ltd., industrial heating engineers, of London and Bletchley, announce the appointment of Mr. H. Melrose, A.M.I.E.E., as district engineer and manager, Midlands area, following the retirement of Mr. J. Hearn Noble. Mr. Melrose will operate from their new offices at 6-8, Holloway Head, Birmingham, 1 (Midland 6897). * * * Mr. H. M. Woodhams, managing director of Sir W. G. Arm strong Whitworth Aircraft, Ltd., recently presented 48 clocks to employees who had each completed 25 years' service with the company or with member-firms of the Hawker Siddeley Group. Such presentations have become an annual event and in the last three years 233 clocks have been awarded. All the A.W.A. directors have qualified. The United Steel Companies, established a research fellowship of Sheffield. The object will be ledge and not to give training therefore, will be men who have ship in research and have shown investigations. Ltd., announce that they have in metallurgy at the University to advance metallurgical know- for research; those appointed, already served their apprentice- ability to conduct independent FORTHCOMING EVENTS R.Ae.C.: Film Show, Londonderry House. R.Ae.S. Section Lecture: "Aircraft Stability and Control," by A. W. Babister, M.A., A.F.R.Ae.S. I nstitute of Navigation: "Navigation in the U.K.-New Zealand Air Race" by members of the R.A.F. team. Association of British Aero Clubs and Centres : Annual dinner. R.Ae.S. Graduates' and Students' Section: "The Case for the Light Fighter," by P. A. Norman. S.L.A.E.: "Training the R.A.F. Apprentice," by G/C. R. J. Carvell. R.Ae.S. Section Lecture: "Integral Construction," by K. L. G. Legg, B.Sc, A.M.I.Mech.E., A.F.R.Ae.S. Helicopter Association: "Ground Resonance," by R. Howarth. Photogrammetric Society: "Stereoscopic Vision applied to Photogrammetry," by Professor W. D. Wright. Royal United Service Institution: "Effects on the Human Body of High-speed and High-altitude Flight," by G/C. W. K. Stewart, C.B.E., A.F.C., B.Sc., M.B., Ch.B. R.Ae.S. Main Lecture: "Training Devices for Aircrew," by N. J. G. Hill, A.M.I.A.E., A.R.Ae.S., or deputy (at Belfast). R.Ae.S. Section Lecture: "High-speed Wind Tunnels," by D. L. Ellis, B.Sc., A.R.T.C, F.R.Ae.S. R.Ae.S. Graduates' and Students' Section: Film Show (jointly with Inst. Pet.). Anniversary of the Wright Brothers' First Flight. Institution of Production Engineers: Conference: "Problems of Aircraft Production" (at Southampton University). R.Ae.S. Branch Fixtures (to Dec. 18).—Nov. 13, Chester, annual dance. Nov. 16, Halton, branch night. Nov. 18, Manchester, "Developments in Gliding," by A. H. Yates. Nov. 23, Halton, junior members' night. Nov. 24, Henlow, films: Belfast- "Short Analogue Computor," by E. Lloyd-Thomas: Boscomfae Down, Inaug ural meeting. Nov. 25, Bristol, "R.A.F. Operational Requirements," by A. Cdre. W. H. Kyle. Nov. 27, Birmingham, "Uses for the Small Gas Turbine" (speaker to be announced). Nov. 30, Halton, films. Dec. 2, Luton, "Short-haul and Charter Operations," by a charter operator; Chester, "Rocket Propulsion and Interplanetary Flight." by A. V. Cleaver. Dec. 4, Bristol, Engineering Association joint dance. Dec. 7, Halton and Henlow area meeting, "Design of Fast Load-carrying Aeroplanes," by D. H. Lee, F.R.Ae.S. Dec. 8, Bristol, "Fly-past, Present and Future," by Capt. 1. Laurence Pritchard, hon. F.R.Ae.S.; Henlow, "The Training of Test Pilots," by G/C. S. Wroath, A.F.C. Dec. 9, Manchester, "Principles of Weight Control," by F. Howarth, A.F.R.Ae.S. Dec. 11, Preston, Wright Brothers' Jubilee dinner dance. Dec. 17, Bristol, celebration of 50th anniversary of powered flight. Dec. 18, Birmingham, films. Nov. Nov. Nov. Nov. Nov. Nov. Dec. Dec. Dec. Dec. Dec. Dec. Dec. Dec. Dec. 17. 19. 20 20. 26 28 1. 4 4 9 10. 15 17. 17. 18-19
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