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Project Zero: Half plane, half helicopter

20 June 2013 Last updated at 10:40 BST

On of the most striking items on display at the Paris Air Show is Agusta Westland's Project Zero - a flying machine that can be described as half-helicopter, half aeroplane.

The BBC's Theo Leggett has been taking a look at the Anglo-Italian helicopter company's ambitious craft, which he described as "a thing of beauty".