Great Planes EP E-Performance SU-31 3D ARF RC Airplane FEATURES: Construction: Balsa and ply with prehinged ailerons and rudder and air foiled control surfaces, motor box preinstalled with blind nuts INCLUDES: ElectriFly ARF SU-31 3D Aerobatic Airplane with fiberglass cowl, ABS wheel pants, landing gear, wheels, hardware REQUIRES: Radio: 4 channel computer radio recommended Servos: 4-micro Dual Servo Extension