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Aviation History
1962
1962 - 0109.PDF
LIGHT International, 18 January 1962 109 :eans, and forwards and sideways speed e shown by moving dotted lines across nd down the screen. The situation display based on a moving compass ring with a xed aircraft symbol in the centre. Bearing ,d distance to the RAILS is shown by a .dial line and dot, while horizontal anceuvring commands are shown by > ossed lines, which move to give velocity- ;anging demands. A contracting ring ows the height of the helicopter relative the datum. It is noteworthy that the stem can be used continuously throughout ne transition from normal forward to hovering flight, when the gearing and nature of the director must normally be consider ably changed. The attitude symbol can also be switched to appear on the plan-position display. Distributed round the two c.r.t.s are a Bendix vertical tape height and speed display, engine power and rotor r.p.m. dials, turn-and-slip indicator and various switches. Outboard of these are the Tacan, ADF, VOR/ILS and Doppler navigation indicators and controls. US Army pilots have already made many completely blind flights and landings in the desert. They are reported to have required very little conversion time. The RAILS beacon has a range of 10 miles and, because it can only be received over line-of-sight paths, provides a form of obstacle clearance information. Tests are also to be made soon of blind formation flying, with one helicopter keeping station on another machine carrying RAILS. Other future applications of the system as a whole include the control of drone aircraft for reconnaissance or of helicopters carrying supplies to surrounded troops. The airborne computer measures 8in X 8in X 23in and weighs 161b. Each of the c.r.t. units measures 7in X 7in X 8in. The airborne RAILS interrogator can quickly be fitted or removed from the helicopter according to operational requirements. Further details of Bell Helicopter work in the context of the ANIP programme were given in Flight for February 24 last year. The French C.S.F. AM 220H radio altimeter aerials, indicator and transmitter receiver. Together, these units weigh 19.21b. Indicating range is 0-950ft and accuracy sufficient for automatic landing sealed in glass plastics which project from small surface mountings. Sperry state that deliveries in Britain will begin early this year and that new orders can be met at short notice. The Breguet Atlantic prototype carries AM 220H aerials beneath the rear fuselage. Wind-finding in Greenland A Decca WF 2 wind-finding radar has been installed by the Danish Meteorological Institute at the Narssarssuak weather station on the west coast of Greenland. The WF 2 is a self-contained unit with an air-conditioned cabin for the operator and can track a balloon-carried passive reflector up to 100,000ft. NATO Transmitter in UK Continental Electronics Systems Inc, a subsidiary of Ling-Temco-Vought, has a contract to design, make and install a very high- powered VLF transmitter for NATO fleet communications near Anthorn, Cumber land. Value of the contract is for £3,777,364 and the station will be completed in three years. The company is already preparing a 2MW VLF transmitter in Australia and has provided one at Cutler, Maine. Associated with Continental in the UK project are Redifon, who will make the precision frequency generator and provide technical staff, and Brian Colquhoun and Partners, who will carry out civil engin eering. Products Swedish Runway Tester The use of large jet aircraft from icy airfields has spurred the development of equipment for the accurate investigation of rolling and skid ding contact between rubber tyres and airfield surfaces. Several specialized test vehicles have been developed in Sweden for the investigation of all problems con nected with wheels and roads or runways. The Royal Board of Swedish Civil Aviation and the National Swedish Road Research Institute jointly developed the original BV2 as a heavy (6,6001b) trailer, which has been in regular use at Stockholm Bromma since the winter of 1956-57. Last October a BV2 was flown to Atlantic City for testing by the FAA. An even larger vehicle is the French Radio Altimeter Sperry Gyros cope Co, London, have been appointed exclusive UK sales agents for the French C.S.F. AM 220H radio altimeter. This unit weighs 19.21b, without cables, and is fully transistorized, except for the trans mitting tube. Provision is made for auto pilot coupling and a normally achieved accuracy of ± 1ft below 50ft and ±2 per cent above 50ft is claimed. Operating range is from 0 to 950ft. All controls and the height datum warning light are in the single panel-mounted instrument, the re maining electronics being contained in modular form in a £ ATR case. Shock- mounts designed for helicopter or fixed- wing installations include a potentio meter for compensating for residual altitude, so that receiver-transmitter units can be -hanged without recalibration. Separate modules contain low-frequency, counting, motor/amplifier and power pack circuits, the last-named being available in various orms to suit 24V d.c. or 400c/s a.c. sup- . Hes. The AM 220H operates in CW at 600-1,660Mc/s and has two dipole aerials New prefabricated office block of British Executive and General Aviation Ltd at Shoreham, Sussex, comprising two drawing offices, and administrative offices, covering an area of nearly 12,000 sqft. The drawing offices—part of which is seen below—incorporate "monitor roof lights" which add considerably to the 75 per cent light area of the wall panels. The manufacturers, Middlesex Pre fabricated Buildings Ltd (a company of the JEL Group), of Hounslow, Middlesex, were responsible for all site instol/ations with the exception of the foundations
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