Kiev/ukraine - Jun 21 2016: Launch of an Aircraft Model With Rubber Engine. People at Aircraft Model Sports Competition Outdoors in Konotop, Ukraine. Green Field. Serious Teenage Boy is Launching an Airplane. 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.