Kiev/ukraine - Jun 21 2016: Competition Day in Konotop, Launch of an Aircraft Model With Rubber Engine by Tense Teenage Boy in Sun Glasses With Serious Face. People at Aircraft Model Sports Competition Outdoors. Green Field in Konotop, Ukraine. Model is Flying up to the Sky. 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.