Multiplex ’s spirited new bi-plane brings the joy and thrill of 3D aerobatics to both beginner and advanced pilots, looking for easy flying fun in an indoor RC plane. Made of space-efficient, flat EPP with colourful pre-printed schemes, the Challenger ’s two large wings and robust fuselage allow for low airspeeds in all manner of flight conditions. Large control surfaces and a new 3S power system that flies on 3S 350-500mah LiPo batteries allow for effortless maneuverability and terrific 3D aerobatics.