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London-Heathrow tests radar to spot debris
27 October 2004

London-Heathrow Airport plans to install a radar-based detection system to monitor runways for potentially dangerous debris. The new system, developed by the UK electronics company QinetiQ, is based on high-resolution millimetre wave radar and can operate around the clock in all weathers. It is said to be able to detect very small objects, such as a suitcase wheel or a metal nut from a distance of 2,000 metres. (Daily Telegraph)