This is a variant of the stock yak-54 but with a twist! It has an electric motor and has over 85lbs. of thrust! (Stock it has around 50lbs. of thrust) It can hover at just below half throttle and can do the same 3D as the stock just with more power. At full throttle the battery will last around 5 mins. So thats about 15 min. of hardcore 3D!!