Teams from the University of Maryland and Rensselaer Polytechnic Institute took top places in their categories in the Vertical Flight Society's 39th Annual Student Design Competition.
HeliHub com : VFS Announces Winners of 39th Annual Student Design Competition helihub.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from helihub.com Daily Mail and Mail on Sunday newspapers.