It is not always by buying cheaper than saving money ... The \"SDX\" entirely made in Japan by \"Hirobo\", the brand several world champion, is its perfect illustration.\nIt will allow all its users, from beginner to expert, to take advantage of an incomparable reliability for a long time, being assured of a spare parts service for more than 10 years.\nThe hyper -resistant rotor head is derived from that used by Dominick Haegele on its \"3D turbulence\" model, it allows thanks to its many adjustment possibilities, to obtain a very stable model, for beginners, or to practice 3D acrobatics more incredible. The mechanical base is optimized here for the control of the cyclic plate in 3 points, SWM system, with \"push-power\" commands between the servos and the references. Provided for use with an 8 to 9cc engine. Rear transmission by notched belt, pledge of precision and reliability. Delivered without main rotor blades and without silencer. The engine and the radio control must be acquired separately.