Kiev/ukraine - Jun 22 2016: Teenagers Preparing to Model Aircraft Sports Competitions Outdoors, Green Field in Konotop, Ukraine. Lightning in the Sky. Interested Young People Are Walking, Standing, Sitting on a Grass. Preparation to Launching of Flying Aircraft Models. Kids' Technical Art. Aircraft Model Assembly Before Starting. Aircraft Model Launching. Estimation of Airplane Model Flight. Jury is Estimating the Start and Flight of the Airplane. Cloudscape, Horizon, Fresh Green Grass. Cloudy Day