The Reaktor 3D EPP is a superb model for 3D aerobatic flying. Constructed of super durable EPP foam, this kit can handle just about anything you can throw at it. Its large control surfaces offer extreme authority for 3D manuevers. It features an airfoiled wing with carbon fiber spars in-built making it extremely rigid. Ailerons and elevator come pre-hinged which help keep assembly time to a minimum.