The Blade 550 X provides big heli presence with the single pack ease of a smaller heli. It builds very quickly and flies well with the included electronics. With the stock motor pinion, it is ‘geared’ towards sport flying but with an inexpensive pinion change, it can become a 3D monster. The mechanics are solid, with bearings in all the right places and fully-machined main and tail rotors. It’s also backed by Horizon’s exemplary parts and technical support. It’s a definite must-have in the mid-size helicopter class.