It started yesterday, the event "Aero 2011" which is held annually in the town of Friedrichshafen, the German city on the north side of Lake Constance. Until April 16, about 550 exhibitors from 26 different countries can count on 90,000 square meters available to the fair. Already in 2010 was widely appreciated the quality of the event that this year with its 11 rooms will house some of the leading...