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Aviation History
1964
1964 - 1196.PDF
HJGhT international, 23 April 1964 HANOVER SHOW . . . 669 internal details of the pump, acceleration control, hydraulic and mechanical governors. Latest of the microswitch developments are the Picaseal DN.128O.Z and the Minihermic DB.1322.Z. Dunlop Aviation Division, Foleshill, Coventry, England. The Dunlop exhibit covers a large range of components for many of the world's leading aircraft, ground servicing units and aerodrome equipment. Aircraft for which complete tyre, wheel, and brake assemblies are on view include the BAC One-Eleven, Transall C-160; Fokker Friend- ship; Dornier Do31; VJ 101C, and Dernier Do27. A selection of helicopter equipment representative of that fitted to eleven different types is indicative of the increasingly important role of the helicopter in both civil and military aviation. Components of two different wind- screen wiper systems are on view; these include pump units, wiper motors, control valves, and parts comprising the wiper-head assembly. Dunlop windscreen-wiper equipment is fitted on over thirty types of aircraft. Among the de-icing equipment are heater mats on the air intake for a Rolls-Royce Tyne; on a de Havilland propeller blade for the Transall C-160, and on a spinner for the same *" aircraft. A battery heater; missile heaters; a heater for gyroscopic instrument housings; and a capsule heater typical of the many suitable ...;. for aircraft heating applications, are further examples of the company's range of de-icing and anti-icing equipment. A selection of ten types of flexible pipe includes one recently developed to withstand an exceptionally wide range of temperatures and pressures, and a new type of flexible ducting as fitted in the cabin pressurization system of the BAC One-Eleven. Engine control components being shown include thrust reverser controls for the Rolls- Royce Conway and Spey, and other compo- nents for the Rolls-Royce RB.162. Control components for Bristol Siddeley engines are also represented. Miscellaneous aircraft com- ponents being exhibited include a pilot's con- trol handle and a selection of control units for both hydraulic and pneumatic operating systems. •":-; The centre-piece of the stand consists of a sectioned typical tyre, wheel, and brake assem- ' bly, showing the multi-piston-type plate brake; air-cooling installation; axle-mounted anti- skid unit; modulator; and fusible plug. Several of these units are also shown individually. Anti-skid equipment featured at the show includes three types of Maxaret unit, and . components for the Hytrol system (licensed .from Hydro-Aire Ltd). Dunlop anti-skid • equipment is fitted on over forty different types of aircraft. Ground equipment featured includes mobile pneumatic charging trolleys; mobile engine-starter trolleys (as now in service with BOAC), and equipment for aircraft arrester systems. ELDO (European Launcher Development Organization), 36 Rue la Perouse, Paris 16, France. Presented at Hanover by this organization is a half-size model of the complete three-stage vehicle now under development. On the same stana (170 sq m in area) are exhibits by the member states, illustrating the work they are contributing to the initial ELDO programme. inese include scale models, specimens of fQwpment, engines, photographs and draw- jags. Films are also being projected to illus- -~- irate the organization and activities of ELDO. ine booster stage of the three-stage vehicle mentroned at the outset is the Hawker Siddeley The Dunlop stand Blue Streak, to which allusion is made under "Ministry of Aviation." Elliott-Automation Ltd, 34 Portland Place, London, W.l, England. The theme of the Elliott-Automation stand is safety and reliability in aviation. Flight control systems exhibited incorporate ad- vanced failure-survival techniques which the company has developed to provide reliability at reasonable cost and with the minimum weight penalty. The system-checking capability of the air- borne digital computer and its ability to com- pare information from two or more sources, determining the faulty source and rejecting incorrect information in the event of discrepan- cies, illustrates another important aspect of this theme. A new autostabilization system for VTOL aircraft is being demonstrated for the first time. The system incorporates duplicate monitored gyros and a quadruplex electrohydraulic actuator which continues to operate after two lane failures and which incorporates means for preventing disengagement below duplex level. It can be readily adapted for electrical signal- ling systems and for full maneouvre demand automatic control. A new autostabilizer computer, constructed from micro-miniature components and thin- film circuits which give a marked reduction in equipment volume and improved reliability, is exhibited. The improvements allow the incorporation of built-in monitoring facilities which permit the installation of fail-safe or failure-survival systems in appreciably less space than conventional single-channel equip- ments. A new form of packaging is associated with this form of construction. An important addition to Elliott's range of fuel management and engine control is a differential thrust meter for a vertical take-off transport. In this system, a transducer meas- ures the difference between the cold nozzle pressures of two lift engines. Another trans- ducer measures the difference between the hot nozzle pressures. These measurements are used to compute and display the difference in thrust between the two engines, thus providing valuable additional information for the pilot during transitions, take-off and landing. The modular air data computer on show is designed to provide air data information for the autopilot system of the BAC One-Eleven. It is one of a family of Elliott systems designed to cover the air data needs of a wide range of transport aircraft. A model of the Elliott MCS 920M airborne digital computer is being shown. This is a micro-miniaturized version of the Elliott MCS 920, which has been specified for a variety of realtime applications. It is a fast parallel- logic machine using silicon semiconductors throughout and having a solid-state core store of 8,192 words of 18 bits each. Designed to meet current advanced aircraft designs and orbital vehicle requirements, the computer has a self-check facility and is also capable of testing its associated input/output unit and the sensory equipment connected to it. The Elliott radar performance monitor has been developed for the assessment and calibration of radar equipment and provides simulated targets under a wide variety of operating conditions. It can be operated under manual, remote and automatic control to provide very rapid overall assessment of a radar's performance. As the radar under test is working under its normal operating condi- tions, both routine and diagnostic tests can also be made. It is suitable for aircraft main- tenance duties at all levels, in addition to the fast calibration of ground radars, providing simulated target returns over ranges between 5,000 and 40,000m at range rates of 100 to 600m/sec. Entwicklungsring Siid (EWR), Museumsinsel 1, Munich 26, West Germany. Flight demonstrations by the VJ 101C jet VTOL aircraft are likely to prove the highlight of the entire show. Two of these remarkable aircraft have been built, following an extensive programme of testing in tunnels, tethered rigs and free-flight devices. Throughout, the members of EWR Slid—Bolkow, Heinkel and Messerschmitt—have collaborated closely with Rolls-Royce/MAN who have provided six The ELDO launch-pad at Lake Hart, Woomera
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