http://www.electrifly.com The Yak 55 3D ARF dispels the myth that an expensive brushless motor system is needed for electric 3D aerobatic flight. High alpha flight, Parachutes, Blenders and even Walls are among the Yak 55 3D’s capabilities — and it does all of this with an inexpensive yet powerful brushed motor! The ball bearing 280-size motor and 5:1 gearbox are assembled and ready to install into the airframe, and an included “prop saver”, compatible with APC or GWS prop hubs, allows the prop to deflect back at landing.