Great Planes ElectriFly Extra 330SC 3D Foam Indoor EP ARF FEATURES: Construction: 3mm extruded polystyrene Pro-formance foam, an ElectriFly exclusive, control surfaces are prehinged with 3M Blenderm tape hing INCLUDES: ElectriFly Extra 330SC 3D Foam Plane with landing gear, wheels, motor mount, pushrods, carbon rods, brace doublers, control horns and instru REQUIRES: Radio: 4-channel with mini receiver Servos: Three micro high torque For Indoor Flight Performance- Motor: RimFire 250 (GPMG4502) Battery: 7.