I Have One Sitting In Front Of Me Right Now. Putting It Together For Someone Else Though. Very Nice ARF. I'd Plan On An Engine In The Upper End Of The Recommended Range. I Believe A 50cc Would Be Minimal Power For This Plane. This Ones Getting A Brison 4.2 In It. The Manual Reccomends Hitec 5955's All Around But Personally I Think It Would Be Overkill.