Kiev/ukraine - Jun 21 2016: Group of People at Aircraft Model Sports Competition Outdoors. Green Field in Konotop, Ukraine. Trainers, Instructors and Young Students, Teenage Boys Are Holding Their Models. Preparation For Launching the Airplane Models. Kids' Technical Art. Models Assembly Before the Start. Airplane Launching. Estimation of the Aircraft Flight. Jury is Estimating the Start and Flight of the Airplane Model. Scene in Cloudy Summer Day. Landscape, Green Trees on a Horizon