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Aviation History
1963
1963 - 0756.PDF
FLIGHT International, 16 May 1963 729 INDUSTRY International Flight Systems Products Company News Great Britain FLIGHT SYSTEMS Deeca's New AR-1 Control Radar Decca Radar have announced a new control radar covering the complete range of performance between PPI approach and medium range surveillance at a price suitable for smaller airfields. Called AR-1, the new unit is a I Ocm system rotating at 15 r.p.m., detecting civil transport aircraft at 70 miles and up to 35,OOOft, while also giving low-level coverage at up to 35 miles. It has a 650kW trans mitter and t.w.t. low-noise receiver, single or dual transmitters, fully transistorized MTI with PRF staggering to reduce blind Decca's new AR-I S-band radar for both medium- and short-range control at smaller airfields (news item above) speeds, double cancellation to improve sub-clutter visibility and broad-band circular polarization. Two 12in displays are standard, either in moving-coil or transis torized fixed-coil form; and the equipment meets the ICAO Annex 10 recommen dations for radar. Decca Loran C for Norden Loran C equipment designed and made by Decca Navigator Co in Britain, reputed to be among the best of its kind, is to be made under licence at Norwalk, Connecticut, by the Norden Division of United Aircraft Corp. Under an agreement, the two companies will co-operate in the develop ment and marketing of such equipment in the USA, Decca providing technical assistance and exchanging information. Thinking Digitally The London Joint Group on the applications of electricity in aircraft, formed jointly by the Institution of Electrical Engineers and the Royal Aero nautical Society, held a discussion in London on May 6 on the case for digital computers in aircraft. The topic was concisely intro duced by Dr A. J. Maddock and supported by several speakers from computer manu facturers. BAC One-Eleven Simulator The flight simulator division of Redifon Ltd has received an order from Central African Airways for a flight simulator with a three- axis fuselage motion system for the BAC One-Eleven. CAA have already had good service from their Redifon Viscount simulator. Light Aircraft VHF Burndept have now released more precise information about their BE.304 11-channel VHF radio for light aircraft. It covers the full VHF communi cations band up to i 36Mc/s with crystals Decca Navigator's Loran C receiver, now to be manufactured in the USA by Norden Division of United Aircraft (news item, col 2) Flight deck of an Aeroflot Tu-104 fitted with Standard Telephones & Cables' ILS cross- pointer instrument. The navigator's position with related black boxes was illustrated on these pages last week for any 11 frequencies readily inserted and changed in the air. It is suitable for both 50kc/s and lOOkc/s spacing and has a nominal effective range of 60 miles at 3.000ft. Either 12V or 24V versions are offered, and the transistorized modulator power supply can be mounted up to 15ft away from the main panel-mounted unit. A transistorized over-voltage protection circuit is incorporated. The main unit measures lOiin x 6|in x 4in and weighs 51b. More than the usual two head-sets can be plugged in by means of adapters. MoA VHF Radio Link The Automatic Telephone and Electric Co (AT&E Bridg north Ltd) has received an order from MoA for a VHF radio link system with one re peater to link the MoA radio stations at Rhu Stafnish and Tiree in the Hebrides, with a repeater at Kilchiarin. There will be duplicated 5-channel terminals with auto matic and manual changeover facilities and a duplicated repeater. Both communi cations and engineering signals will be passed, allowing remote control and sur veillance of the equipment. The total radio path is 100 miles. PRODUCTS Polypenco Trident Contribution To meet a design requirement for an overhaul life of at least 6,000hr, Polypenco Fluorosint— a ceramic-like fluorocarbon material—was selected for piston rings for a lightweight actuator in the air-conditioning supply system in the D.H. Trident. This actuator controls valves taking hot air from the compressor stage of the engines, pumped to the actuator at 2251b/sq in. Although nor- normally operating at 300CC, the actuator can reach an overload temperature of 470°C and the Fluorosint rings have worked at this latter temperature, state their
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