More than 60 flight's hours, 17 airplanes and 13 helicopters: these are are just some numbers about the air practise that will take place at the Olbia Airport on April 17th and 18th, that's will end with a fly-past in the Sardinian skies on April, 19th. Main subject of the show is the fight against woody fires that destroy hundreds of earth's hectares every year, in Sardinia and other parts of...