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Aviation History
1959
1959 - 1686.PDF
12 June 1959 815 flight instrument display showing the application of the new I.F.A.L.P.A.cockpit recommendations for the basic T and a group of six central instruments. In this group are the display instruments of the Smithsflight system. Other noteworthy features are the servo altimeter, the new presentation mechanical altimeter, miniature position indicatorsand the engine instrument display. Smiths Aviation Division, Livingstone College, Leyton, E.10. Sperry Gyroscope Co. Ltd. (Stand No. 55B) Sperry exhibits will belocated in two separate displays, one on Stand No. 55B in the main exhi- bition hall and the other in a special Seaslug display adjacent to themissile park in the outside concourse. On Stand No. 55B Sperry aeronautical exhibits will include selectedexamples of advanced equipment under development, notably the visual flight director, twin-gyro stable platform, helicopter stabilization equip-ment, "Rotorace" Gyrosyn compasses, selected gyro horizons (including the AC/DC type H.L.9), miniature servo components and a design ofautomatic pilot for high-performance aircraft to provide automatic control on one or more of the three axes.Sperry aeronautical exhibits will be shown adjacent to those staged by Smiths Aviation Division, and these two sections of the stand will belinked by a feature of the Airco D.H.121, for which Smiths and Sperry are collaborating in the design of flight instrumentation and controlequipment. The Smiths and Sperry displays will otherwise be separate. The Seaslug exhibit is being staged by the three principal contractorson this ship-to-air weapon, namely Sir W. G. Armstrong Whitworth Ltd., The General Electric Company Ltd. and Sperry Gyroscope Ltd.The Sperry visual flight director display uses a representation of the forward part of a cockpit, including especially the windscreen on towhich is projected optically the cross-pointer display of the Zero Reader flight director. A photographic background behind the windscreenportrays alternatively an approach phase or low flying and enables the features of this new development of the flight director technique to beappreciated readily. The twin-gyro platform exhibit includes the sealed platform unit, in which two "Rotorace" directional gyros are orientatedat right-angles and so gimballed that they provide a heading reference of inertial quality (free drift rate less than 0.5° per hour) and also atthe same time a precise vertical reference. The "Rotorace" directional gyro will be that used in the Sperry C.llGyrosyn compass to provide the most accurate compass reference avail- able for polar navigation or use with advanced navigational systems,such as Doppler. A pictorial display based on the Fiat G.91 serves to introduce Sperry electro-hydraulic autopilots for high-performance air-craft where there is a requirement for automatic control on one or more axes. A pilot's controller of the A.L.30 gyropilot will representthe automatic pilot series being installed in the Friendship, Noratlas, Herald, Pembroke and other aircraft.Sperry Gyroscope Co. Ltd., Grpat West Road, Brentford, Middlesex. Teleflex Products Ltd. (Stand No. 39A) Examples of Teleflexcable-tension regulators, used in the flying- and engine-control systems of practically every new British aircraft, will be exhibited, and there willalso be examples of the Teleflex remote-control system with ftuon- lined conduits. The regulators on show will include examples for theViscount, Vanguard, Argosy, Herald, Friendship, NA.39, Sea Vixen and Swiss Venom. Particularly interesting will be regulators for theNA.39's aileron and tailplane system. Teleflex Products Ltd., Basildon, Essex. Vickers-Armstrongs (Aircraft) Ltd. There will be no Vickers-Armstrongs (Aircraft) stand, but the company hope the first B.E.A. Vanguard will fly over on the Press day (June 11) and will be in Parisfrom June 19-21 inclusive. The Vanguard is a large turboprop airliner (four Rolls-Royce Tynes)which sprang from a B.E.A. requirement for an aircraft which, while offering competitive speed (up to 425 m.p.h.) and comfort, wouldimprove to a revolutionary extent the inherent difficulty of making a profit out of short/medium-haul route networks—especially those sub-ject to heavy "peak" problems. Vickers claim that, at a 65 per cent load factor, the 139-seat Vanguard can operate at a 10 per cent clearnet profit with fares ranging from 30 to 50 per cent below current tourist rates. Percentage fare-reductions actually calculated for particularroutes vary from 29 per cent on a 239-mile stage to 50 per cent on a 686-mile stage. The Vanguard has a span of 118ft.In the guided weapons park will be a simulator room in which the operation of the Vickers Vigilant anti-tank weapon can be studied andin which a visitor can actually "fire" a mock missile. This room is used for instruction and for training potential Vigilant operators. Componentparts of the Vigilant—a detailed description of which appeared in Flight of May 22—will be shown outside.Vickers-Armstrongs (Aircraft) Ltd., Weybridge, Surrey. W. Vinten Ltd. (Stand No. 107B) Included in the Vinten productionprogramme are the following airborne cameras : 70 mm reconnaissance camera (F.95); 16 mm combat recording camera (G.90); 35 mm geologicalsurvey camera. Among the research camera equipment they are able to offer are thetake-off camera (F.47) and the 35 mm high-speed camera (H.S. 300), both of which are in use by the Ministry of Supply and private com-panies engaged in aircraft and allied industries. W. Vinten Ltd., North Circular Road, London, N.W.2. Westland Aircraft Ltd. (Stand No. 30A) Four Westland helicopterswill be at Le Bourget. The Widgeon will be there throughout the whole show, from the 11th to the 21st or 22nd. The developmentWhirlwind with the de Havilland Gnome turbine will be present, together with the Wessex and the Westminster, to give flying demonstrations onthe 18th and individual demonstrations on the 19th. These three air- craft will arrive on the 17th and return either on the evening of the 19thor the morning of the 20th. On the stand there will be a scale model of the Westminster craneprototype and smaller models of the other members of the Westland family. Particular interest will, of course, be aroused by the threeturbine-engined helicopters—the Westminster, Gnome-Whirlwind and Wessex. The Westminster has recently been undergoing weight-liftingtrials in its "crane transporter" role. It is the largest twin-turbine, mechanically driven, single-rotor helicopter in the Western world andis claimed to be able to operate with full payload on one of its Napier Elands if need be. With its disposable load of some 14,000 lb theaircraft meets the requirement for a large military transport able to Above, de Havilland Propellers Firestreak (on Sea Vixen). Below, English Electric Thunder bird (on launcher). Right, Vickers Vigilant and the Armstrong Whitvtorth Seaslug (on launcher) carry heavy field equipment, tactical and nuclear weapons and troopsover stages ot 150 miles or more. Typical loads could be 51 troops, five missiles or four jeeps. The two Napier Elands are mounted sideby side ahead of the main gearbox on top of the fuselage. A civil version is projected. The Wessex has been adopted by the Royal Navy as itsstandard anti-submarine aircraft. Powered with a Napier Gazelle free turbine, it has a maximum speed of 144 m.p.h.Westland Aircraft Ltd., Yeovil, Somerset. Henry Wiggin & Co. Ltd. (Stand No. 37H) The Wiggin displaywill feature the widespread uses of Nimonic and Nimocast alloys in gas turbines and other power units. These alloys, besides being standardizedfor the rotor blading of British gas turbines, are employed for flame tubes, discharge nozzles, turbine discs, structural rings, exhaust units,afterburners, thrust reversers, noise suppressors, tip jets, catalyst plates, etc. A secondary display will show how other Wiggin nickel alloys such as Monel, Inconel and the Brightray series are used in aircraft components. Henry Wiggin & Co. Ltd., Birmingham, 16.
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