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Sat 09 Sep 2005Scientists developing 'silent aircraft'AerospaceThe development of a "silent aircraft" could bring relief to the thousands of people living close to airports, the BA festival heard. Specialists are tackling aircraft noise by taking a completely fresh look at the design of aircraft.While commercial production of the aircraft is likely to be 20 years away, the engineers are also working on new noise efficient landing procedures to reduce noise levels in the meantime.