Great Planes ElectriFly Edge 540T E-Performance 50 3D EP ARF FEATURES: Construction: Balsa and ply with prehinged ailerons and rudder and airfoiled control surfaces INCLUDES: ElectriFly ARF Edge 540T Aerobatic Airplane with fiberglass cowl, wheel pants and landing gear, wheels, hardware and photo-illustrated REQUIRES: Radio: 4-5 channel Servos: 4-micro Y Harness: For aileron servos 12 (305mm) Extensions: Two 16 (406mm) Extensions: Two Motor