This 90cm Extra 300S is the first small, scale-like foam model that is able to perform flat spin, knife edge, and many other difficult aerobatics using its stock motor, With the supplied B/06/10 brushless motor, however, and it becomes an unlimited aerobatic competition plane, capable of even the most difficult maneuvers. No other Extra in similar size may compare to its outstanding performance. Now just Challenge yourself - fly the UltraFly Extra 300S!